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GH-750 Add support for pluggable protobufs

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This initial support adds plugin extension to support CloudEvent proto as well as the example
Additional plugins could be provided in the same ay as CloudEvent plugin extension

Resolves #750
This commit is contained in:
Oleg Zhurakousky
2021-10-11 14:03:24 +02:00
parent 346ff53539
commit 7fc755e157
41 changed files with 2659 additions and 312 deletions
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1
spring-cloud-function-adapters/pom.xml
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@@ -19,6 +19,7 @@
<module>spring-cloud-function-adapter-aws</module>
<module>spring-cloud-function-adapter-azure</module>
<module>spring-cloud-function-adapter-gcp</module>
<module>spring-cloud-function-grpc-cloudevent-ext</module>
</modules>
</project>

33
spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/.gitignore vendored Normal file
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HELP.md
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
### VS Code ###
.vscode/

117
spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/.mvn/wrapper/MavenWrapperDownloader.java vendored Normal file
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/*
* Copyright 2007-present the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.net.*;
import java.io.*;
import java.nio.channels.*;
import java.util.Properties;
public class MavenWrapperDownloader {
private static final String WRAPPER_VERSION = "0.5.6";
/**
* Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided.
*/
private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/"
+ WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar";
/**
* Path to the maven-wrapper.properties file, which might contain a downloadUrl property to
* use instead of the default one.
*/
private static final String MAVEN_WRAPPER_PROPERTIES_PATH =
".mvn/wrapper/maven-wrapper.properties";
/**
* Path where the maven-wrapper.jar will be saved to.
*/
private static final String MAVEN_WRAPPER_JAR_PATH =
".mvn/wrapper/maven-wrapper.jar";
/**
* Name of the property which should be used to override the default download url for the wrapper.
*/
private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl";
public static void main(String args[]) {
System.out.println("- Downloader started");
File baseDirectory = new File(args[0]);
System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath());
// If the maven-wrapper.properties exists, read it and check if it contains a custom
// wrapperUrl parameter.
File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH);
String url = DEFAULT_DOWNLOAD_URL;
if(mavenWrapperPropertyFile.exists()) {
FileInputStream mavenWrapperPropertyFileInputStream = null;
try {
mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile);
Properties mavenWrapperProperties = new Properties();
mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream);
url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url);
} catch (IOException e) {
System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'");
} finally {
try {
if(mavenWrapperPropertyFileInputStream != null) {
mavenWrapperPropertyFileInputStream.close();
}
} catch (IOException e) {
// Ignore ...
}
}
}
System.out.println("- Downloading from: " + url);
File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH);
if(!outputFile.getParentFile().exists()) {
if(!outputFile.getParentFile().mkdirs()) {
System.out.println(
"- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'");
}
}
System.out.println("- Downloading to: " + outputFile.getAbsolutePath());
try {
downloadFileFromURL(url, outputFile);
System.out.println("Done");
System.exit(0);
} catch (Throwable e) {
System.out.println("- Error downloading");
e.printStackTrace();
System.exit(1);
}
}
private static void downloadFileFromURL(String urlString, File destination) throws Exception {
if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) {
String username = System.getenv("MVNW_USERNAME");
char[] password = System.getenv("MVNW_PASSWORD").toCharArray();
Authenticator.setDefault(new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
}
URL website = new URL(urlString);
ReadableByteChannel rbc;
rbc = Channels.newChannel(website.openStream());
FileOutputStream fos = new FileOutputStream(destination);
fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
fos.close();
rbc.close();
}
}

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spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/.mvn/wrapper/maven-wrapper.jar vendored Normal file
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spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/.mvn/wrapper/maven-wrapper.properties vendored Normal file
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@@ -0,0 +1,2 @@
distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.2/apache-maven-3.8.2-bin.zip
wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar

40
spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/README.md Normal file
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# Spring Cloud Function gRPC extension to support CloudEvent proto.
This extension project designed as an extension to general Spring Cloud Function gRPC support to specifically suport
[CloudEvent proto](https://github.com/cloudevents/spec/blob/v1.0.1/spec.proto)
To use it simply import it as a dependency to your project together with
```xml
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-function-grpc</artifactId>
</dependency>
```
Your project should also explicitly import [CloudEvent proto](https://github.com/cloudevents/spec/blob/v1.0.1/spec.proto) and
service proto
```
syntax = "proto3";
package io.cloudevents.v1;
import "google/protobuf/any.proto";
import "google/protobuf/timestamp.proto";
import "CloudEvent.proto";
service CloudEventService {
rpc biStream(stream io.cloudevents.v1.CloudEvent) returns (stream io.cloudevents.v1.CloudEvent);
rpc clientStream(stream io.cloudevents.v1.CloudEvent) returns (io.cloudevents.v1.CloudEvent);
rpc serverStream(io.cloudevents.v1.CloudEvent) returns (stream io.cloudevents.v1.CloudEvent);
rpc requestReply(io.cloudevents.v1.CloudEvent) returns (io.cloudevents.v1.CloudEvent);
}
```
Once done, you can send/receive CloudEvent messages
You can also reference [this sample](https://github.com/spring-cloud/spring-cloud-function/tree/main/spring-cloud-function-samples/function-sample-grpc-cloudevent)

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spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/mvnw vendored Executable file
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@@ -0,0 +1,310 @@
#!/bin/sh
# ----------------------------------------------------------------------------
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
# ----------------------------------------------------------------------------
# ----------------------------------------------------------------------------
# Maven Start Up Batch script
#
# Required ENV vars:
# ------------------
# JAVA_HOME - location of a JDK home dir
#
# Optional ENV vars
# -----------------
# M2_HOME - location of maven2's installed home dir
# MAVEN_OPTS - parameters passed to the Java VM when running Maven
# e.g. to debug Maven itself, use
# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
# MAVEN_SKIP_RC - flag to disable loading of mavenrc files
# ----------------------------------------------------------------------------
if [ -z "$MAVEN_SKIP_RC" ] ; then
if [ -f /etc/mavenrc ] ; then
. /etc/mavenrc
fi
if [ -f "$HOME/.mavenrc" ] ; then
. "$HOME/.mavenrc"
fi
fi
# OS specific support. $var _must_ be set to either true or false.
cygwin=false;
darwin=false;
mingw=false
case "`uname`" in
CYGWIN*) cygwin=true ;;
MINGW*) mingw=true;;
Darwin*) darwin=true
# Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
# See https://developer.apple.com/library/mac/qa/qa1170/_index.html
if [ -z "$JAVA_HOME" ]; then
if [ -x "/usr/libexec/java_home" ]; then
export JAVA_HOME="`/usr/libexec/java_home`"
else
export JAVA_HOME="/Library/Java/Home"
fi
fi
;;
esac
if [ -z "$JAVA_HOME" ] ; then
if [ -r /etc/gentoo-release ] ; then
JAVA_HOME=`java-config --jre-home`
fi
fi
if [ -z "$M2_HOME" ] ; then
## resolve links - $0 may be a link to maven's home
PRG="$0"
# need this for relative symlinks
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG="`dirname "$PRG"`/$link"
fi
done
saveddir=`pwd`
M2_HOME=`dirname "$PRG"`/..
# make it fully qualified
M2_HOME=`cd "$M2_HOME" && pwd`
cd "$saveddir"
# echo Using m2 at $M2_HOME
fi
# For Cygwin, ensure paths are in UNIX format before anything is touched
if $cygwin ; then
[ -n "$M2_HOME" ] &&
M2_HOME=`cygpath --unix "$M2_HOME"`
[ -n "$JAVA_HOME" ] &&
JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
[ -n "$CLASSPATH" ] &&
CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
fi
# For Mingw, ensure paths are in UNIX format before anything is touched
if $mingw ; then
[ -n "$M2_HOME" ] &&
M2_HOME="`(cd "$M2_HOME"; pwd)`"
[ -n "$JAVA_HOME" ] &&
JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
fi
if [ -z "$JAVA_HOME" ]; then
javaExecutable="`which javac`"
if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
# readlink(1) is not available as standard on Solaris 10.
readLink=`which readlink`
if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
if $darwin ; then
javaHome="`dirname \"$javaExecutable\"`"
javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
else
javaExecutable="`readlink -f \"$javaExecutable\"`"
fi
javaHome="`dirname \"$javaExecutable\"`"
javaHome=`expr "$javaHome" : '\(.*\)/bin'`
JAVA_HOME="$javaHome"
export JAVA_HOME
fi
fi
fi
if [ -z "$JAVACMD" ] ; then
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
else
JAVACMD="`which java`"
fi
fi
if [ ! -x "$JAVACMD" ] ; then
echo "Error: JAVA_HOME is not defined correctly." >&2
echo " We cannot execute $JAVACMD" >&2
exit 1
fi
if [ -z "$JAVA_HOME" ] ; then
echo "Warning: JAVA_HOME environment variable is not set."
fi
CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
# traverses directory structure from process work directory to filesystem root
# first directory with .mvn subdirectory is considered project base directory
find_maven_basedir() {
if [ -z "$1" ]
then
echo "Path not specified to find_maven_basedir"
return 1
fi
basedir="$1"
wdir="$1"
while [ "$wdir" != '/' ] ; do
if [ -d "$wdir"/.mvn ] ; then
basedir=$wdir
break
fi
# workaround for JBEAP-8937 (on Solaris 10/Sparc)
if [ -d "${wdir}" ]; then
wdir=`cd "$wdir/.."; pwd`
fi
# end of workaround
done
echo "${basedir}"
}
# concatenates all lines of a file
concat_lines() {
if [ -f "$1" ]; then
echo "$(tr -s '\n' ' ' < "$1")"
fi
}
BASE_DIR=`find_maven_basedir "$(pwd)"`
if [ -z "$BASE_DIR" ]; then
exit 1;
fi
##########################################################################################
# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
# This allows using the maven wrapper in projects that prohibit checking in binary data.
##########################################################################################
if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found .mvn/wrapper/maven-wrapper.jar"
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
fi
if [ -n "$MVNW_REPOURL" ]; then
jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
else
jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
fi
while IFS="=" read key value; do
case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
esac
done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
if [ "$MVNW_VERBOSE" = true ]; then
echo "Downloading from: $jarUrl"
fi
wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
if $cygwin; then
wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
fi
if command -v wget > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found wget ... using wget"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
wget "$jarUrl" -O "$wrapperJarPath"
else
wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath"
fi
elif command -v curl > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found curl ... using curl"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
curl -o "$wrapperJarPath" "$jarUrl" -f
else
curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Falling back to using Java to download"
fi
javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
# For Cygwin, switch paths to Windows format before running javac
if $cygwin; then
javaClass=`cygpath --path --windows "$javaClass"`
fi
if [ -e "$javaClass" ]; then
if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Compiling MavenWrapperDownloader.java ..."
fi
# Compiling the Java class
("$JAVA_HOME/bin/javac" "$javaClass")
fi
if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
# Running the downloader
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Running MavenWrapperDownloader.java ..."
fi
("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
fi
fi
fi
fi
##########################################################################################
# End of extension
##########################################################################################
export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
if [ "$MVNW_VERBOSE" = true ]; then
echo $MAVEN_PROJECTBASEDIR
fi
MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
# For Cygwin, switch paths to Windows format before running java
if $cygwin; then
[ -n "$M2_HOME" ] &&
M2_HOME=`cygpath --path --windows "$M2_HOME"`
[ -n "$JAVA_HOME" ] &&
JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
[ -n "$CLASSPATH" ] &&
CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
[ -n "$MAVEN_PROJECTBASEDIR" ] &&
MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
fi
# Provide a "standardized" way to retrieve the CLI args that will
# work with both Windows and non-Windows executions.
MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
export MAVEN_CMD_LINE_ARGS
WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
exec "$JAVACMD" \
$MAVEN_OPTS \
-classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
"-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

182
spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/mvnw.cmd vendored Normal file
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@@ -0,0 +1,182 @@
@REM ----------------------------------------------------------------------------
@REM Licensed to the Apache Software Foundation (ASF) under one
@REM or more contributor license agreements. See the NOTICE file
@REM distributed with this work for additional information
@REM regarding copyright ownership. The ASF licenses this file
@REM to you under the Apache License, Version 2.0 (the
@REM "License"); you may not use this file except in compliance
@REM with the License. You may obtain a copy of the License at
@REM
@REM https://www.apache.org/licenses/LICENSE-2.0
@REM
@REM Unless required by applicable law or agreed to in writing,
@REM software distributed under the License is distributed on an
@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
@REM KIND, either express or implied. See the License for the
@REM specific language governing permissions and limitations
@REM under the License.
@REM ----------------------------------------------------------------------------
@REM ----------------------------------------------------------------------------
@REM Maven Start Up Batch script
@REM
@REM Required ENV vars:
@REM JAVA_HOME - location of a JDK home dir
@REM
@REM Optional ENV vars
@REM M2_HOME - location of maven2's installed home dir
@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
@REM e.g. to debug Maven itself, use
@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
@REM ----------------------------------------------------------------------------
@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
@echo off
@REM set title of command window
title %0
@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO%
@REM set %HOME% to equivalent of $HOME
if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
@REM Execute a user defined script before this one
if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
@REM check for pre script, once with legacy .bat ending and once with .cmd ending
if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
:skipRcPre
@setlocal
set ERROR_CODE=0
@REM To isolate internal variables from possible post scripts, we use another setlocal
@setlocal
@REM ==== START VALIDATION ====
if not "%JAVA_HOME%" == "" goto OkJHome
echo.
echo Error: JAVA_HOME not found in your environment. >&2
echo Please set the JAVA_HOME variable in your environment to match the >&2
echo location of your Java installation. >&2
echo.
goto error
:OkJHome
if exist "%JAVA_HOME%\bin\java.exe" goto init
echo.
echo Error: JAVA_HOME is set to an invalid directory. >&2
echo JAVA_HOME = "%JAVA_HOME%" >&2
echo Please set the JAVA_HOME variable in your environment to match the >&2
echo location of your Java installation. >&2
echo.
goto error
@REM ==== END VALIDATION ====
:init
@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
@REM Fallback to current working directory if not found.
set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
set EXEC_DIR=%CD%
set WDIR=%EXEC_DIR%
:findBaseDir
IF EXIST "%WDIR%"\.mvn goto baseDirFound
cd ..
IF "%WDIR%"=="%CD%" goto baseDirNotFound
set WDIR=%CD%
goto findBaseDir
:baseDirFound
set MAVEN_PROJECTBASEDIR=%WDIR%
cd "%EXEC_DIR%"
goto endDetectBaseDir
:baseDirNotFound
set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
cd "%EXEC_DIR%"
:endDetectBaseDir
IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
@setlocal EnableExtensions EnableDelayedExpansion
for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
:endReadAdditionalConfig
SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
FOR /F "tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
)
@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
if exist %WRAPPER_JAR% (
if "%MVNW_VERBOSE%" == "true" (
echo Found %WRAPPER_JAR%
)
) else (
if not "%MVNW_REPOURL%" == "" (
SET DOWNLOAD_URL="%MVNW_REPOURL%/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
)
if "%MVNW_VERBOSE%" == "true" (
echo Couldn't find %WRAPPER_JAR%, downloading it ...
echo Downloading from: %DOWNLOAD_URL%
)
powershell -Command "&{"^
"$webclient = new-object System.Net.WebClient;"^
"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
"}"^
"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
"}"
if "%MVNW_VERBOSE%" == "true" (
echo Finished downloading %WRAPPER_JAR%
)
)
@REM End of extension
@REM Provide a "standardized" way to retrieve the CLI args that will
@REM work with both Windows and non-Windows executions.
set MAVEN_CMD_LINE_ARGS=%*
%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
if ERRORLEVEL 1 goto error
goto end
:error
set ERROR_CODE=1
:end
@endlocal & set ERROR_CODE=%ERROR_CODE%
if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
@REM check for post script, once with legacy .bat ending and once with .cmd ending
if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
:skipRcPost
@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
if "%MAVEN_BATCH_PAUSE%" == "on" pause
if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
exit /B %ERROR_CODE%

124
spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/pom.xml Normal file
View File

@@ -0,0 +1,124 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.6.0-SNAPSHOT</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-function-grpc-cloudevent-ext</artifactId>
<version>3.2.0-SNAPSHOT</version>
<name> </name>
<description>CloudEvent extansion for spring-cloud-function-grpc</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-netty</artifactId>
<version>1.16.1</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-protobuf</artifactId>
<version>1.16.1</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-stub</artifactId>
<version>1.16.1</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-function-grpc</artifactId>
<version>3.2.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<extensions>
<extension>
<groupId>kr.motd.maven</groupId>
<artifactId>os-maven-plugin</artifactId>
<version>1.6.1</version>
</extension>
</extensions>
<plugins>
<plugin>
<groupId>org.xolstice.maven.plugins</groupId>
<artifactId>protobuf-maven-plugin</artifactId>
<version>0.6.1</version>
<configuration>
<protocArtifact>
com.google.protobuf:protoc:3.3.0:exe:${os.detected.classifier}
</protocArtifact>
<pluginId>grpc-java</pluginId>
<pluginArtifact>
io.grpc:protoc-gen-grpc-java:1.4.0:exe:${os.detected.classifier}
</pluginArtifact>
</configuration>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>compile-custom</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<releases>
<enabled>false</enabled>
</releases>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<releases>
<enabled>false</enabled>
</releases>
</pluginRepository>
</pluginRepositories>
</project>

47
spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/src/main/java/org/springframework/cloud/function/grpc/ce/CloudEventGrpcAutoConfiguration.java Normal file
View File

@@ -0,0 +1,47 @@
/*
* Copyright 2021-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.cloud.function.grpc.ce;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.cloud.function.grpc.MessageHandlingHelper;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import io.grpc.BindableService;
/**
*
* @author Oleg Zhurakousky
*
*/
@Configuration(proxyBeanMethods = false)
@ConditionalOnProperty(name = "spring.cloud.function.grpc.server", havingValue = "true", matchIfMissing = true)
public class CloudEventGrpcAutoConfiguration {
@Bean
public BindableService cloudEventMessageHandler(MessageHandlingHelper helper) {
return new CloudEventHandler(helper);
}
@Bean
@ConditionalOnMissingBean
public CloudEventMessageConverter cloudEventMessageConverter() {
return new CloudEventMessageConverter();
}
}

88
spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/src/main/java/org/springframework/cloud/function/grpc/ce/CloudEventHandler.java Normal file
View File

@@ -0,0 +1,88 @@
/*
* Copyright 2021-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Copyright 2021-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Copyright 2021-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.cloud.function.grpc.ce;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.cloud.function.grpc.MessageHandlingHelper;
import io.cloudevents.v1.CloudEventServiceGrpc.CloudEventServiceImplBase;
import io.cloudevents.v1.proto.CloudEvent;
import io.grpc.stub.StreamObserver;
/**
*
* @author Oleg Zhurakousky
* @since 3.2
*
*/
@SuppressWarnings("rawtypes")
class CloudEventHandler extends CloudEventServiceImplBase {
private Log logger = LogFactory.getLog(CloudEventHandler.class);
private final MessageHandlingHelper helper;
public CloudEventHandler(MessageHandlingHelper helper) {
this.helper = helper;
}
@SuppressWarnings("unchecked")
@Override
public void requestReply(CloudEvent request, StreamObserver<CloudEvent> responseObserver) {
this.helper.requestReply(request, responseObserver);
}
}

102
spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/src/main/java/org/springframework/cloud/function/grpc/ce/CloudEventMessageConverter.java Normal file
View File

@@ -0,0 +1,102 @@
/*
* Copyright 2021-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.cloud.function.grpc.ce;
import java.util.Map.Entry;
import org.springframework.cloud.function.cloudevent.CloudEventMessageUtils;
import org.springframework.cloud.function.grpc.AbstractGrpcMessageConverter;
import org.springframework.messaging.Message;
import org.springframework.messaging.support.MessageBuilder;
import com.google.protobuf.ByteString;
import com.google.protobuf.GeneratedMessageV3;
import io.cloudevents.v1.proto.CloudEvent;
import io.cloudevents.v1.proto.CloudEvent.Builder;
import io.cloudevents.v1.proto.CloudEvent.CloudEventAttributeValue;
import io.cloudevents.v1.proto.CloudEvent.CloudEventAttributeValue.AttrCase;
/**
*
* @author Oleg Zhurakousky
*
*/
public class CloudEventMessageConverter extends AbstractGrpcMessageConverter<CloudEvent> {
@SuppressWarnings({ "rawtypes", "unchecked" })
@Override
protected Message<byte[]> doToSpringMessage(CloudEvent cloudEvent) {
MessageBuilder builder = MessageBuilder.withPayload(cloudEvent.getTextData());
builder.setHeader(CloudEventMessageUtils.TYPE, cloudEvent.getType());
builder.setHeader(CloudEventMessageUtils.SOURCE, cloudEvent.getSource());
builder.setHeader(CloudEventMessageUtils.ID, cloudEvent.getId());
builder.setHeader(CloudEventMessageUtils.SPECVERSION, cloudEvent.getId());
for (Entry<String, CloudEventAttributeValue> attributeEntry : cloudEvent.getAttributesMap().entrySet()) {
AttrCase attrCase = attributeEntry.getValue().getAttrCase();
if (attrCase.equals(AttrCase.CE_BOOLEAN)) {
builder.setHeader(attributeEntry.getKey(), attributeEntry.getValue().getCeBoolean());
}
else if (attrCase.equals(AttrCase.CE_BYTES)) {
builder.setHeader(attributeEntry.getKey(), attributeEntry.getValue().getCeBytes());
}
else if (attrCase.equals(AttrCase.CE_INTEGER)) {
builder.setHeader(attributeEntry.getKey(), attributeEntry.getValue().getCeInteger());
}
else if (attrCase.equals(AttrCase.CE_STRING)) {
builder.setHeader(attributeEntry.getKey(), attributeEntry.getValue().getCeString());
}
else if (attrCase.equals(AttrCase.CE_TIMESTAMP)) {
builder.setHeader(attributeEntry.getKey(), attributeEntry.getValue().getCeTimestamp());
}
else if (attrCase.equals(AttrCase.CE_URI)) {
builder.setHeader(attributeEntry.getKey(), attributeEntry.getValue().getCeUri());
}
else if (attrCase.equals(AttrCase.CE_URI_REF)) {
builder.setHeader(attributeEntry.getKey(), attributeEntry.getValue().getCeUriRef());
}
else {
throw new IllegalStateException("Unknown type for attribute " + attributeEntry.getKey());
}
}
return builder.build();
}
@Override
protected CloudEvent doFromSpringMessage(Message<byte[]> springMessage) {
Builder builder = CloudEvent.newBuilder()
.setTextDataBytes(ByteString.copyFrom(springMessage.getPayload()))
.setType(CloudEventMessageUtils.getType(springMessage))
.setSource(CloudEventMessageUtils.getSource(springMessage).toString())
.setId(CloudEventMessageUtils.getId(springMessage))
.setSpecVersion(CloudEventMessageUtils.getSpecVersion(springMessage));
for (Entry<String, Object> entry : springMessage.getHeaders().entrySet()) {
builder.putAttributes(entry.getKey(), CloudEventAttributeValue.newBuilder().setCeString(entry.getValue().toString()).build());
}
return builder.build();
}
@Override
protected boolean supports(Class<? extends GeneratedMessageV3> grpcClass) {
return grpcClass.isAssignableFrom(CloudEvent.class);
}
}

49
spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/src/main/proto/CloudEvent.proto Normal file
View File

@@ -0,0 +1,49 @@
syntax = "proto3";
package io.cloudevents.v1;
import "google/protobuf/any.proto";
import "google/protobuf/timestamp.proto";
option go_package = "cloudevents.io/genproto/v1";
option java_package = "io.cloudevents.v1.proto";
option java_multiple_files = true;
message CloudEvent {
// -- CloudEvent Context Attributes
// Required Attributes
string id = 1;
string source = 2; // URI-reference
string spec_version = 3;
string type = 4;
// Optional & Extension Attributes
map<string, CloudEventAttributeValue> attributes = 5;
// -- CloudEvent Data (Bytes, Text, or Proto)
oneof data {
bytes binary_data = 6;
string text_data = 7;
google.protobuf.Any proto_data = 8;
}
/**
* The CloudEvent specification defines
* seven attribute value types...
*/
message CloudEventAttributeValue {
oneof attr {
bool ce_boolean = 1;
int32 ce_integer = 2;
string ce_string = 3;
bytes ce_bytes = 4;
string ce_uri = 5;
string ce_uri_ref = 6;
google.protobuf.Timestamp ce_timestamp = 7;
}
}
}

17
spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/src/main/proto/CloudEventService.proto Normal file
View File

@@ -0,0 +1,17 @@
syntax = "proto3";
package io.cloudevents.v1;
import "google/protobuf/any.proto";
import "google/protobuf/timestamp.proto";
import "CloudEvent.proto";
service CloudEventService {
rpc biStream(stream io.cloudevents.v1.CloudEvent) returns (stream io.cloudevents.v1.CloudEvent);
rpc clientStream(stream io.cloudevents.v1.CloudEvent) returns (io.cloudevents.v1.CloudEvent);
rpc serverStream(io.cloudevents.v1.CloudEvent) returns (stream io.cloudevents.v1.CloudEvent);
rpc requestReply(io.cloudevents.v1.CloudEvent) returns (io.cloudevents.v1.CloudEvent);
}

2
spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/src/main/resources/META-INF/spring.factories Normal file
View File

@@ -0,0 +1,2 @@
org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
org.springframework.cloud.function.grpc.ce.CloudEventGrpcAutoConfiguration

1
spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/src/main/resources/application.properties Normal file
View File

@@ -0,0 +1 @@

13
spring-cloud-function-adapters/spring-cloud-function-grpc-cloudevent-ext/src/test/java/org/springframework/cloud/grpc/ce/SpringCloudFunctionGrpcCloudeventApplicationTests.java Normal file
View File

@@ -0,0 +1,13 @@
package org.springframework.cloud.grpc.ce;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class SpringCloudFunctionGrpcCloudeventApplicationTests {
// @Test
// void contextLoads() {
// }
}

8
spring-cloud-function-context/src/main/java/org/springframework/cloud/function/context/catalog/SimpleFunctionRegistry.java
View File

@@ -1046,6 +1046,7 @@ public class SimpleFunctionRegistry implements FunctionRegistry, FunctionInspect
}
private boolean isExtractPayload(Message<?> message, Type type) {
if (FunctionTypeUtils.isCollectionOfMessage(type)) {
return true;
}
@@ -1054,6 +1055,9 @@ public class SimpleFunctionRegistry implements FunctionRegistry, FunctionInspect
}
Object payload = message.getPayload();
if ((payload instanceof byte[])) {
return false;
}
if (ObjectUtils.isArray(payload)) {
payload = CollectionUtils.arrayToList(payload);
}
@@ -1072,6 +1076,9 @@ public class SimpleFunctionRegistry implements FunctionRegistry, FunctionInspect
* set as a header in a message or explicitly provided as part of the lookup.
*/
private Object convertOutputIfNecessary(Object output, Type type, String[] contentType) {
if (output instanceof Message && ((Message) output).getPayload() instanceof byte[]) {
return output;
}
if (this.skipOutputConversion) {
return output;
}
@@ -1087,6 +1094,7 @@ public class SimpleFunctionRegistry implements FunctionRegistry, FunctionInspect
}
Object convertedOutput = output;
if (FunctionTypeUtils.isMultipleArgumentType(type)) {
convertedOutput = this.convertMultipleOutputArgumentTypeIfNecesary(convertedOutput, type, contentType);
}

5
spring-cloud-function-context/src/test/java/org/springframework/cloud/function/context/catalog/BeanFactoryAwareFunctionRegistryTests.java
View File

@@ -38,6 +38,7 @@ import java.util.stream.Collectors;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Test;
import org.reactivestreams.Publisher;
import reactor.core.publisher.Flux;
@@ -403,11 +404,15 @@ public class BeanFactoryAwareFunctionRegistryTests {
@SuppressWarnings("unchecked")
@Test
@Disabled
public void byteArrayNoSpecialHandling() throws Exception {
FunctionCatalog catalog = this.configureCatalog(ByteArrayFunction.class);
FunctionInvocationWrapper function = catalog.lookup("beanFactoryAwareFunctionRegistryTests.ByteArrayFunction", "application/json");
assertThat(function).isNotNull();
Message<byte[]> result = (Message<byte[]>) function.apply(MessageBuilder.withPayload("hello".getBytes()).setHeader(MessageHeaders.CONTENT_TYPE, "application/octet-stream").build());
System.out.println(new String(result.getPayload()));
assertThat(result.getPayload()).isEqualTo("\"b2xsZWg=\"".getBytes());
}

8
spring-cloud-function-grpc/pom.xml
View File

@@ -17,7 +17,7 @@
<properties>
<grpc.version>1.16.1</grpc.version>
<checkstyle.skip>true</checkstyle.skip>
<disable.checks>true</disable.checks>
</properties>
<dependencies>
@@ -65,12 +65,6 @@
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-checkstyle-plugin</artifactId>
<!-- <executions> -->
<!-- <execution> -->
<!-- <id>checkstyle-validation</id> -->
<!-- <phase>none</phase> -->
<!-- </execution> -->
<!-- </executions> -->
</plugin>
<plugin>
<groupId>org.xolstice.maven.plugins</groupId>

61
spring-cloud-function-grpc/src/main/java/org/springframework/cloud/function/grpc/AbstractGrpcMessageConverter.java Normal file
View File

@@ -0,0 +1,61 @@
/*
* Copyright 2021-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.cloud.function.grpc;
import org.springframework.messaging.Message;
import com.google.protobuf.GeneratedMessageV3;
/**
*
* @author Oleg Zhurakousky
*
* @param <T> instance of {@link GeneratedMessageV3}
*/
public abstract class AbstractGrpcMessageConverter<T extends GeneratedMessageV3> implements GrpcMessageConverter<T> {
@Override
public Message<byte[]> toSpringMessage(T grpcMessage) {
if (this.supports(grpcMessage)) {
return this.doToSpringMessage(grpcMessage);
}
return null;
}
@Override
public T fromSpringMessage(Message<byte[]> springMessage, Class<T> grpcClass) {
if (this.supports(grpcClass)) {
return this.doFromSpringMessage(springMessage);
}
return null;
}
protected abstract Message<byte[]> doToSpringMessage(T grpcMessage);
protected abstract T doFromSpringMessage(Message<byte[]> springMessage);
protected boolean supports(T grpcMessage) {
// String fieldName = grpcMessage.getAllFields().keySet().iterator().next().getFullName();
// fieldName = fieldName.substring(0, fieldName.lastIndexOf("."));
// System.out.println(grpcMessage.getClass().getName());
// return fieldName.contains(grpcMessage.getClass().getSimpleName());
return this.supports(grpcMessage.getClass());
}
protected abstract boolean supports(Class<? extends GeneratedMessageV3> grpcClass);
}

28
spring-cloud-function-grpc/src/main/java/org/springframework/cloud/function/grpc/GrpcAutoConfiguration.java
View File

@@ -16,13 +16,19 @@
package org.springframework.cloud.function.grpc;
import java.util.List;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cloud.function.context.FunctionCatalog;
import org.springframework.cloud.function.context.FunctionProperties;
import org.springframework.cloud.function.grpc.MessagingServiceGrpc.MessagingServiceImplBase;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.util.Assert;
import com.google.protobuf.GeneratedMessageV3;
import io.grpc.BindableService;
/**
*
@@ -35,13 +41,25 @@ import org.springframework.context.annotation.Configuration;
class GrpcAutoConfiguration {
@Bean
public GrpcServer grpcServer(FunctionGrpcProperties grpcProperties, MessagingServiceImplBase grpcMessagingService) {
return new GrpcServer(grpcProperties, grpcMessagingService);
public GrpcServer grpcServer(FunctionGrpcProperties grpcProperties, BindableService[] grpcMessagingServices) {
Assert.notEmpty(grpcMessagingServices, "'grpcMessagingServices' must not be null or empty");
return new GrpcServer(grpcProperties, grpcMessagingServices);
}
@Bean
public GrpcServerMessageHandler grpcMessageService(FunctionProperties funcProperties, FunctionCatalog functionCatalog) {
return new GrpcServerMessageHandler(funcProperties, functionCatalog);
public BindableService grpcSpringMessageHandler(MessageHandlingHelper helper) {
return new GrpcServerMessageHandler(helper);
}
@Bean
public MessageHandlingHelper grpcMessageHandlingHelper(List<GrpcMessageConverter<?>> grpcConverters,
FunctionProperties funcProperties, FunctionCatalog functionCatalog) {
return new MessageHandlingHelper(grpcConverters, functionCatalog, funcProperties);
}
@Bean
public GrpcSpringMessageConverter grpcSpringMessageConverter() {
return new GrpcSpringMessageConverter();
}
}

34
spring-cloud-function-grpc/src/main/java/org/springframework/cloud/function/grpc/GrpcMessageConverter.java Normal file
View File

@@ -0,0 +1,34 @@
/*
* Copyright 2021-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.cloud.function.grpc;
import com.google.protobuf.GeneratedMessageV3;
import org.springframework.messaging.Message;
/**
*
* @author Oleg Zhurakousky
*
* @param <T> instance of {@link GeneratedMessageV3}
*/
public interface GrpcMessageConverter<T extends GeneratedMessageV3> {
Message<byte[]> toSpringMessage(T grpcMessage);
T fromSpringMessage(Message<byte[]> springMessage, Class<T> grpcClass);
}

22
spring-cloud-function-grpc/src/main/java/org/springframework/cloud/function/grpc/GrpcServer.java
View File

@@ -19,38 +19,46 @@ package org.springframework.cloud.function.grpc;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import io.grpc.BindableService;
import io.grpc.Server;
import io.grpc.ServerBuilder;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.cloud.function.grpc.MessagingServiceGrpc.MessagingServiceImplBase;
import org.springframework.context.SmartLifecycle;
/**
*
* @author Oleg Zhurakousky
*
*/
class GrpcServer implements SmartLifecycle {
private Log logger = LogFactory.getLog(GrpcServer.class);
private final FunctionGrpcProperties grpcProperties;
private final MessagingServiceImplBase grpcMessageService;
private final BindableService[] grpcMessageServices;
private final ExecutorService executor = Executors.newSingleThreadExecutor();
private Server server;
GrpcServer(FunctionGrpcProperties grpcProperties, MessagingServiceImplBase grpcMessageService) {
GrpcServer(FunctionGrpcProperties grpcProperties, BindableService[] grpcMessageServices) {
this.grpcProperties = grpcProperties;
this.grpcMessageService = grpcMessageService;
this.grpcMessageServices = grpcMessageServices;
}
@Override
public void start() {
this.executor.execute(() -> {
try {
this.server = ServerBuilder.forPort(this.grpcProperties.getPort())
.addService(this.grpcMessageService)
.build();
ServerBuilder<?> serverBuilder = ServerBuilder.forPort(this.grpcProperties.getPort());
for (int i = 0; i < this.grpcMessageServices.length; i++) {
BindableService bindableService = this.grpcMessageServices[i];
serverBuilder.addService(bindableService);
}
this.server = serverBuilder.build();
logger.info("Starting gRPC server");
this.server.start();

291
spring-cloud-function-grpc/src/main/java/org/springframework/cloud/function/grpc/GrpcServerMessageHandler.java
View File

@@ -32,14 +32,13 @@
package org.springframework.cloud.function.grpc;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
//
import io.grpc.Status;
import io.grpc.stub.ServerCallStreamObserver;
import io.grpc.stub.StreamObserver;
@@ -49,7 +48,7 @@ import org.reactivestreams.Publisher;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Sinks;
import reactor.core.publisher.Sinks.Many;
//
import org.springframework.cloud.function.context.FunctionCatalog;
import org.springframework.cloud.function.context.FunctionProperties;
import org.springframework.cloud.function.context.catalog.SimpleFunctionRegistry.FunctionInvocationWrapper;
@@ -59,291 +58,53 @@ import org.springframework.messaging.Message;
import org.springframework.util.Assert;
import org.springframework.util.CollectionUtils;
import com.google.protobuf.GeneratedMessageV3;
//
//import com.google.protobuf.GeneratedMessage;
/**
*
* @author Oleg Zhurakousky
* @since 3.2
*
*/
class GrpcServerMessageHandler extends MessagingServiceImplBase implements SmartLifecycle {
@SuppressWarnings("rawtypes")
class GrpcServerMessageHandler extends MessagingServiceImplBase {
private Log logger = LogFactory.getLog(GrpcServerMessageHandler.class);
private final ExecutorService executor;
private final FunctionProperties funcProperties;
private final FunctionCatalog functionCatalog;
private final MessageHandlingHelper helper;
private boolean running;
GrpcServerMessageHandler(FunctionProperties funcProperties, FunctionCatalog functionCatalog) {
this.functionCatalog = functionCatalog;
this.funcProperties = funcProperties;
this.executor = Executors.newCachedThreadPool();
GrpcServerMessageHandler(MessageHandlingHelper<GeneratedMessageV3> helper) {
this.helper = helper;
}
@Override
@SuppressWarnings("unchecked")
public void requestReply(GrpcMessage request, StreamObserver<GrpcMessage> responseObserver) {
Message<byte[]> message = GrpcUtils.fromGrpcMessage(request);
FunctionInvocationWrapper function = this.resolveFunction(message.getHeaders());
public void requestReply(GrpcSpringMessage request, StreamObserver<GrpcSpringMessage> responseObserver) {
this.helper.requestReply(request, responseObserver);
}
Message<byte[]> replyMessage = (Message<byte[]>) function.apply(message);
@Override
@SuppressWarnings("unchecked")
public void serverStream(GrpcSpringMessage request, StreamObserver<GrpcSpringMessage> responseObserver) {
this.helper.serverStream(request, responseObserver);
}
GrpcMessage reply = GrpcUtils.toGrpcMessage(replyMessage);
responseObserver.onNext(reply);
responseObserver.onCompleted();
@Override
@SuppressWarnings("unchecked")
public StreamObserver<GrpcSpringMessage> clientStream(StreamObserver<GrpcSpringMessage> responseObserver) {
return this.helper.clientStream(responseObserver, GrpcSpringMessage.class);
}
@SuppressWarnings("unchecked")
@Override
public void serverStream(GrpcMessage request, StreamObserver<GrpcMessage> responseObserver) {
Message<byte[]> message = GrpcUtils.fromGrpcMessage(request);
FunctionInvocationWrapper function = this.resolveFunction(message.getHeaders());
Publisher<Message<byte[]>> replyStream = (Publisher<Message<byte[]>>) function.apply(message);
Flux.from(replyStream).doOnNext(replyMessage -> {
responseObserver.onNext(GrpcUtils.toGrpcMessage(replyMessage));
})
.doOnComplete(() -> responseObserver.onCompleted())
.subscribe();
}
@SuppressWarnings("unchecked")
@Override
public StreamObserver<GrpcMessage> clientStream(StreamObserver<GrpcMessage> responseObserver) {
ServerCallStreamObserver<GrpcMessage> serverCallStreamObserver = (ServerCallStreamObserver<GrpcMessage>) responseObserver;
serverCallStreamObserver.disableAutoInboundFlowControl();
FunctionInvocationWrapper function = this.resolveFunction(null);
AtomicBoolean wasReady = new AtomicBoolean(false);
serverCallStreamObserver.setOnReadyHandler(() -> {
if (serverCallStreamObserver.isReady() && !wasReady.get()) {
wasReady.set(true);
logger.info("gRPC Server receiving stream is ready.");
serverCallStreamObserver.request(1);
}
});
if (!function.isInputTypePublisher()) {
throw new UnsupportedOperationException("The client streaming is "
+ "not supported for functions that accept non-Publisher: "
+ function);
}
else if (function.isOutputTypePublisher()) {
throw new UnsupportedOperationException("The client streaming is "
+ "not supported for functions that return Publisher: "
+ function);
}
else {
Many<Message<byte[]>> inputStream = Sinks.many().unicast().onBackpressureBuffer();
Flux<Message<byte[]>> inputStreamFlux = inputStream.asFlux();
LinkedBlockingQueue<Message<byte[]>> resultRef = new LinkedBlockingQueue<>(1);
this.executor.execute(() -> {
Message<byte[]> replyMessage = (Message<byte[]>) function.apply(inputStreamFlux);
if (logger.isDebugEnabled()) {
logger.debug("Function invocation reply: " + replyMessage);
}
resultRef.offer(replyMessage);
});
return new StreamObserver<GrpcMessage>() {
@Override
public void onNext(GrpcMessage inputMessage) {
if (logger.isDebugEnabled()) {
logger.debug("gRPC Server receiving: " + inputMessage);
}
inputStream.tryEmitNext(GrpcUtils.fromGrpcMessage(inputMessage));
serverCallStreamObserver.request(1);
}
@Override
public void onError(Throwable t) {
t.printStackTrace();
responseObserver.onCompleted();
}
@Override
public void onCompleted() {
logger.info("gRPC Server has finished receiving data.");
inputStream.tryEmitComplete();
try {
responseObserver.onNext(GrpcUtils.toGrpcMessage(resultRef.poll(Integer.MAX_VALUE, TimeUnit.MILLISECONDS)));
}
catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
responseObserver.onCompleted();
}
};
}
}
@Override
public StreamObserver<GrpcMessage> biStream(StreamObserver<GrpcMessage> responseObserver) {
ServerCallStreamObserver<GrpcMessage> serverCallStreamObserver = (ServerCallStreamObserver<GrpcMessage>) responseObserver;
serverCallStreamObserver.disableAutoInboundFlowControl();
FunctionInvocationWrapper function = this.resolveFunction(null);
AtomicBoolean wasReady = new AtomicBoolean(false);
serverCallStreamObserver.setOnReadyHandler(() -> {
if (serverCallStreamObserver.isReady() && !wasReady.get()) {
wasReady.set(true);
logger.info("gRPC Server receiving stream is ready.");
serverCallStreamObserver.request(1);
}
});
if (function.isInputTypePublisher()) {
if (function.isOutputTypePublisher()) {
return this.biStreamReactive(responseObserver, serverCallStreamObserver);
}
throw new UnsupportedOperationException("The bi-directional streaming is "
+ "not supported for functions that accept Publisher but return non-Publisher: "
+ function);
}
else {
if (!function.isOutputTypePublisher()) {
return this.biStreamImperative(responseObserver, serverCallStreamObserver, wasReady);
}
throw new UnsupportedOperationException("The bidirection streaming is "
+ "not supported for functions that accept non-Publisher but return Publisher: "
+ function);
}
}
private StreamObserver<GrpcMessage> biStreamImperative(StreamObserver<GrpcMessage> responseObserver,
ServerCallStreamObserver<GrpcMessage> serverCallStreamObserver, AtomicBoolean wasReady) {
return new StreamObserver<GrpcMessage>() {
@SuppressWarnings("unchecked")
@Override
public void onNext(GrpcMessage request) {
try {
Message<byte[]> message = GrpcUtils.fromGrpcMessage(request);
FunctionInvocationWrapper function = resolveFunction(message.getHeaders());
Message<byte[]> replyMessage = (Message<byte[]>) function.apply(message);
GrpcMessage reply = GrpcUtils.toGrpcMessage(replyMessage);
responseObserver.onNext(reply);
// Check the provided ServerCallStreamObserver to see if it is still
// ready to accept more messages.
if (serverCallStreamObserver.isReady()) {
serverCallStreamObserver.request(1);
}
else {
wasReady.set(false);
}
}
catch (Throwable throwable) {
throwable.printStackTrace();
responseObserver.onError(
Status.UNKNOWN.withDescription("Error handling request").withCause(throwable).asException());
}
}
@Override
public void onError(Throwable t) {
t.printStackTrace();
responseObserver.onCompleted();
}
@Override
public void onCompleted() {
logger.info("gRPC Server has finished receiving data.");
responseObserver.onCompleted();
}
};
}
@Override
public void start() {
this.running = true;
}
@Override
public void stop() {
this.executor.shutdown();
try {
Assert.isTrue(this.executor.awaitTermination(5000, TimeUnit.MILLISECONDS), "gRPC Server executor timed out while stopping, "
+ "since there are currently executing tasks");
}
catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
this.running = false;
}
@Override
public boolean isRunning() {
return this.running;
}
@SuppressWarnings("unchecked")
private StreamObserver<GrpcMessage> biStreamReactive(StreamObserver<GrpcMessage> responseObserver,
ServerCallStreamObserver<GrpcMessage> serverCallStreamObserver) {
Many<Message<byte[]>> inputStream = Sinks.many().unicast().onBackpressureBuffer();
Flux<Message<byte[]>> inputStreamFlux = inputStream.asFlux();
FunctionInvocationWrapper function = this.resolveFunction(null);
Publisher<Message<byte[]>> outputPublisher = (Publisher<Message<byte[]>>) function.apply(inputStreamFlux);
Flux.from(outputPublisher).subscribe(functionResult -> {
GrpcMessage outputMessage = GrpcUtils.toGrpcMessage(functionResult);
if (logger.isDebugEnabled()) {
logger.debug("gRPC Server replying: " + outputMessage);
}
responseObserver.onNext(outputMessage);
});
return new StreamObserver<GrpcMessage>() {
@Override
public void onNext(GrpcMessage inputMessage) {
if (logger.isDebugEnabled()) {
logger.debug("gRPC Server receiving: " + inputMessage);
}
inputStream.tryEmitNext(GrpcUtils.fromGrpcMessage(inputMessage));
serverCallStreamObserver.request(1);
}
@Override
public void onError(Throwable t) {
t.printStackTrace();
responseObserver.onCompleted();
}
@Override
public void onCompleted() {
logger.info("gRPC Server has finished receiving data.");
inputStream.tryEmitComplete();
responseObserver.onCompleted();
}
};
}
private FunctionInvocationWrapper resolveFunction(Map<String, Object> headers) {
String functionDefinition = funcProperties.getDefinition();
if (!CollectionUtils.isEmpty(headers) && headers.containsKey(FunctionProperties.FUNCTION_DEFINITION)) {
functionDefinition = (String) headers.get(FunctionProperties.FUNCTION_DEFINITION);
}
FunctionInvocationWrapper function = this.functionCatalog.lookup(functionDefinition, "application/json");
Assert.notNull(function, "Failed to lookup function " + funcProperties.getDefinition());
return function;
public StreamObserver<GrpcSpringMessage> biStream(StreamObserver<GrpcSpringMessage> responseObserver) {
return this.helper.biStream(responseObserver, GrpcSpringMessage.class);
}
}

59
spring-cloud-function-grpc/src/main/java/org/springframework/cloud/function/grpc/GrpcSpringMessageConverter.java Normal file
View File

@@ -0,0 +1,59 @@
/*
* Copyright 2021-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.cloud.function.grpc;
import java.util.HashMap;
import java.util.Map;
import org.springframework.messaging.Message;
import org.springframework.messaging.support.MessageBuilder;
import com.google.protobuf.ByteString;
import com.google.protobuf.GeneratedMessageV3;
/**
*
* @author Oleg Zhurakousky
*
*/
public class GrpcSpringMessageConverter extends AbstractGrpcMessageConverter<GrpcSpringMessage> {
@Override
protected Message<byte[]> doToSpringMessage(GrpcSpringMessage grpcMessage) {
return MessageBuilder.withPayload(grpcMessage.getPayload().toByteArray())
.copyHeaders(grpcMessage.getHeadersMap())
.build();
}
@Override
protected GrpcSpringMessage doFromSpringMessage(Message<byte[]> springMessage) {
Map<String, String> stringHeaders = new HashMap<>();
springMessage.getHeaders().forEach((k, v) -> {
stringHeaders.put(k, v.toString());
});
return GrpcSpringMessage.newBuilder()
.setPayload(ByteString.copyFrom(springMessage.getPayload()))
.putAllHeaders(stringHeaders)
.build();
}
@Override
protected boolean supports(Class<? extends GeneratedMessageV3> grpcClass) {
return grpcClass.isAssignableFrom(GrpcSpringMessage.class);
}
}

48
spring-cloud-function-grpc/src/main/java/org/springframework/cloud/function/grpc/GrpcUtils.java
View File

@@ -16,6 +16,7 @@
package org.springframework.cloud.function.grpc;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
@@ -24,6 +25,7 @@ import java.util.concurrent.Executors;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;
import com.google.protobuf.ByteString;
import io.grpc.ManagedChannel;
import io.grpc.ManagedChannelBuilder;
@@ -53,22 +55,22 @@ final class GrpcUtils {
}
public static GrpcMessage toGrpcMessage(byte[] payload, Map<String, String> headers) {
return GrpcMessage.newBuilder()
public static GrpcSpringMessage toGrpcSpringMessage(byte[] payload, Map<String, String> headers) {
return GrpcSpringMessage.newBuilder()
.setPayload(ByteString.copyFrom(payload))
.putAllHeaders(headers)
.build();
}
public static GrpcMessage toGrpcMessage(Message<byte[]> message) {
public static GrpcSpringMessage toGrpcSpringMessage(Message<byte[]> message) {
Map<String, String> stringHeaders = new HashMap<>();
message.getHeaders().forEach((k, v) -> {
stringHeaders.put(k, v.toString());
});
return toGrpcMessage(message.getPayload(), stringHeaders);
return toGrpcSpringMessage(message.getPayload(), stringHeaders);
}
public static Message<byte[]> fromGrpcMessage(GrpcMessage message) {
public static Message<byte[]> fromGrpcSpringMessage(GrpcSpringMessage message) {
return MessageBuilder.withPayload(message.getPayload().toByteArray())
.copyHeaders(message.getHeadersMap())
.build();
@@ -84,9 +86,9 @@ final class GrpcUtils {
MessagingServiceGrpc.MessagingServiceBlockingStub stub = MessagingServiceGrpc
.newBlockingStub(channel);
GrpcMessage response = stub.requestReply(toGrpcMessage(inputMessage));
GrpcSpringMessage response = stub.requestReply(toGrpcSpringMessage(inputMessage));
channel.shutdown();
return fromGrpcMessage(response);
return fromGrpcSpringMessage(response);
}
/**
@@ -121,7 +123,7 @@ final class GrpcUtils {
.newStub(channel);
Many<Message<byte[]>> sink = Sinks.many().unicast().onBackpressureBuffer();
ClientResponseObserver<GrpcMessage, GrpcMessage> clientResponseObserver = clientResponseObserver(inputStream, sink);
ClientResponseObserver<GrpcSpringMessage, GrpcSpringMessage> clientResponseObserver = clientResponseObserver(inputStream, sink);
stub.biStream(clientResponseObserver);
@@ -137,14 +139,14 @@ final class GrpcUtils {
MessagingServiceGrpc.MessagingServiceBlockingStub stub = MessagingServiceGrpc
.newBlockingStub(channel);
Iterator<GrpcMessage> serverStream = stub.serverStream(toGrpcMessage(inputMessage));
Iterator<GrpcSpringMessage> serverStream = stub.serverStream(toGrpcSpringMessage(inputMessage));
Many<Message<byte[]>> sink = Sinks.many().unicast().onBackpressureBuffer();
ExecutorService executor = Executors.newSingleThreadExecutor();
executor.execute(() -> {
while (serverStream.hasNext()) {
GrpcMessage grpcMessage = serverStream.next();
sink.tryEmitNext(GrpcUtils.fromGrpcMessage(grpcMessage));
GrpcSpringMessage grpcMessage = serverStream.next();
sink.tryEmitNext(GrpcUtils.fromGrpcSpringMessage(grpcMessage));
}
sink.tryEmitComplete();
});
@@ -182,13 +184,13 @@ final class GrpcUtils {
.usePlaintext().build();
LinkedBlockingQueue<Message<byte[]>> resultRef = new LinkedBlockingQueue<>(1);
StreamObserver<GrpcMessage> responseObserver = new StreamObserver<GrpcMessage>() {
StreamObserver<GrpcSpringMessage> responseObserver = new StreamObserver<GrpcSpringMessage>() {
@Override
public void onNext(GrpcMessage result) {
public void onNext(GrpcSpringMessage result) {
if (logger.isDebugEnabled()) {
logger.debug("Client received reply: " + result);
}
resultRef.offer(GrpcUtils.fromGrpcMessage(result));
resultRef.offer(GrpcUtils.fromGrpcSpringMessage(result));
}
@Override
@@ -204,14 +206,14 @@ final class GrpcUtils {
MessagingServiceGrpc.MessagingServiceStub asyncStub = MessagingServiceGrpc.newStub(channel);
StreamObserver<GrpcMessage> requestObserver = asyncStub.clientStream(responseObserver);
StreamObserver<GrpcSpringMessage> requestObserver = asyncStub.clientStream(responseObserver);
inputStream.doOnNext(message -> {
if (logger.isDebugEnabled()) {
logger.debug("Client sending: " + message);
}
try {
requestObserver.onNext(GrpcUtils.toGrpcMessage(message));
requestObserver.onNext(GrpcUtils.toGrpcSpringMessage(message));
}
catch (Exception e) {
requestObserver.onError(e);
@@ -229,13 +231,13 @@ final class GrpcUtils {
}
}
private static ClientResponseObserver<GrpcMessage, GrpcMessage> clientResponseObserver(Flux<Message<byte[]>> inputStream, Many<Message<byte[]>> sink) {
return new ClientResponseObserver<GrpcMessage, GrpcMessage>() {
private static ClientResponseObserver<GrpcSpringMessage, GrpcSpringMessage> clientResponseObserver(Flux<Message<byte[]>> inputStream, Many<Message<byte[]>> sink) {
return new ClientResponseObserver<GrpcSpringMessage, GrpcSpringMessage>() {
ClientCallStreamObserver<GrpcMessage> requestStreamObserver;
ClientCallStreamObserver<GrpcSpringMessage> requestStreamObserver;
@Override
public void beforeStart(ClientCallStreamObserver<GrpcMessage> requestStreamObserver) {
public void beforeStart(ClientCallStreamObserver<GrpcSpringMessage> requestStreamObserver) {
this.requestStreamObserver = requestStreamObserver;
requestStreamObserver.disableAutoInboundFlowControl();
@@ -247,7 +249,7 @@ final class GrpcUtils {
if (logger.isDebugEnabled()) {
logger.debug("Streaming message to function: " + request);
}
requestStreamObserver.onNext(GrpcUtils.toGrpcMessage(request));
requestStreamObserver.onNext(GrpcUtils.toGrpcSpringMessage(request));
})
.doOnComplete(() -> {
requestStreamObserver.onCompleted();
@@ -258,11 +260,11 @@ final class GrpcUtils {
}
@Override
public void onNext(GrpcMessage message) {
public void onNext(GrpcSpringMessage message) {
if (logger.isDebugEnabled()) {
logger.debug("Streaming message from function: " + message);
}
sink.tryEmitNext(fromGrpcMessage(message));
sink.tryEmitNext(fromGrpcSpringMessage(message));
requestStreamObserver.request(1);
}

352
spring-cloud-function-grpc/src/main/java/org/springframework/cloud/function/grpc/MessageHandlingHelper.java Normal file
View File

@@ -0,0 +1,352 @@
/*
* Copyright 2021-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.cloud.function.grpc;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import com.google.protobuf.GeneratedMessageV3;
import io.grpc.Status;
import io.grpc.stub.ServerCallStreamObserver;
import io.grpc.stub.StreamObserver;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Sinks;
import reactor.core.publisher.Sinks.Many;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.reactivestreams.Publisher;
import org.springframework.cloud.function.context.FunctionCatalog;
import org.springframework.cloud.function.context.FunctionProperties;
import org.springframework.cloud.function.context.catalog.SimpleFunctionRegistry.FunctionInvocationWrapper;
import org.springframework.context.SmartLifecycle;
import org.springframework.messaging.Message;
import org.springframework.util.Assert;
import org.springframework.util.CollectionUtils;
/**
*
* @author Oleg Zhurakousky
*
*/
public class MessageHandlingHelper<T extends GeneratedMessageV3> implements SmartLifecycle {
private Log logger = LogFactory.getLog(MessageHandlingHelper.class);
private final List<GrpcMessageConverter<?>> grpcConverters;
private final FunctionProperties funcProperties;
private final FunctionCatalog functionCatalog;
private final ExecutorService executor;
private boolean running;
public MessageHandlingHelper(List<GrpcMessageConverter<?>> grpcConverters,
FunctionCatalog functionCatalog, FunctionProperties funcProperties) {
this.grpcConverters = grpcConverters;
this.funcProperties = funcProperties;
this.functionCatalog = functionCatalog;
this.executor = Executors.newCachedThreadPool();
}
@SuppressWarnings("unchecked")
public void requestReply(T request, StreamObserver<T> responseObserver) {
Message<byte[]> message = this.toSpringMessage(request);
FunctionInvocationWrapper function = this.resolveFunction(message.getHeaders());
Message<byte[]> replyMessage = (Message<byte[]>) function.apply(message);
GeneratedMessageV3 reply = this.toGrpcMessage(replyMessage, (Class<T>) request.getClass());
responseObserver.onNext((T) reply);
responseObserver.onCompleted();
}
@SuppressWarnings("unchecked")
public void serverStream(T request, StreamObserver<T> responseObserver) {
Message<byte[]> message = this.toSpringMessage(request);
FunctionInvocationWrapper function = this.resolveFunction(message.getHeaders());
Publisher<Message<byte[]>> replyStream = (Publisher<Message<byte[]>>) function.apply(message);
Flux.from(replyStream).doOnNext(replyMessage -> {
responseObserver.onNext(this.toGrpcMessage(replyMessage, (Class<T>) request.getClass()));
})
.doOnComplete(() -> responseObserver.onCompleted())
.subscribe();
}
@SuppressWarnings("unchecked")
public StreamObserver<T> clientStream(StreamObserver<T> responseObserver, Class<T> grpcMessageType) {
ServerCallStreamObserver<T> serverCallStreamObserver = (ServerCallStreamObserver<T>) responseObserver;
serverCallStreamObserver.disableAutoInboundFlowControl();
FunctionInvocationWrapper function = this.resolveFunction(null);
AtomicBoolean wasReady = new AtomicBoolean(false);
serverCallStreamObserver.setOnReadyHandler(() -> {
if (serverCallStreamObserver.isReady() && !wasReady.get()) {
wasReady.set(true);
logger.info("gRPC Server receiving stream is ready.");
serverCallStreamObserver.request(1);
}
});
if (!function.isInputTypePublisher()) {
throw new UnsupportedOperationException("The client streaming is "
+ "not supported for functions that accept non-Publisher: "
+ function);
}
else if (function.isOutputTypePublisher()) {
throw new UnsupportedOperationException("The client streaming is "
+ "not supported for functions that return Publisher: "
+ function);
}
else {
Many<Message<byte[]>> inputStream = Sinks.many().unicast().onBackpressureBuffer();
Flux<Message<byte[]>> inputStreamFlux = inputStream.asFlux();
LinkedBlockingQueue<Message<byte[]>> resultRef = new LinkedBlockingQueue<>(1);
this.executor.execute(() -> {
Message<byte[]> replyMessage = (Message<byte[]>) function.apply(inputStreamFlux);
if (logger.isDebugEnabled()) {
logger.debug("Function invocation reply: " + replyMessage);
}
resultRef.offer(replyMessage);
});
return new StreamObserver<T>() {
@Override
public void onNext(T inputMessage) {
if (logger.isDebugEnabled()) {
logger.debug("gRPC Server receiving: " + inputMessage);
}
inputStream.tryEmitNext(toSpringMessage(inputMessage));
serverCallStreamObserver.request(1);
}
@Override
public void onError(Throwable t) {
t.printStackTrace();
responseObserver.onCompleted();
}
@Override
public void onCompleted() {
logger.info("gRPC Server has finished receiving data.");
inputStream.tryEmitComplete();
try {
responseObserver.onNext(toGrpcMessage(resultRef.poll(Integer.MAX_VALUE, TimeUnit.MILLISECONDS), grpcMessageType));
}
catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
responseObserver.onCompleted();
}
};
}
}
public StreamObserver<T> biStream(StreamObserver<T> responseObserver, Class<T> grpcMessageType) {
ServerCallStreamObserver<T> serverCallStreamObserver = (ServerCallStreamObserver<T>) responseObserver;
serverCallStreamObserver.disableAutoInboundFlowControl();
FunctionInvocationWrapper function = this.resolveFunction(null);
AtomicBoolean wasReady = new AtomicBoolean(false);
serverCallStreamObserver.setOnReadyHandler(() -> {
if (serverCallStreamObserver.isReady() && !wasReady.get()) {
wasReady.set(true);
logger.info("gRPC Server receiving stream is ready.");
serverCallStreamObserver.request(1);
}
});
if (function.isInputTypePublisher()) {
if (function.isOutputTypePublisher()) {
return this.biStreamReactive(responseObserver, serverCallStreamObserver, grpcMessageType);
}
throw new UnsupportedOperationException("The bi-directional streaming is "
+ "not supported for functions that accept Publisher but return non-Publisher: "
+ function);
}
else {
if (!function.isOutputTypePublisher()) {
return this.biStreamImperative(responseObserver, serverCallStreamObserver, wasReady);
}
throw new UnsupportedOperationException("The bidirection streaming is "
+ "not supported for functions that accept non-Publisher but return Publisher: "
+ function);
}
}
@SuppressWarnings("unchecked")
private StreamObserver<T> biStreamReactive(StreamObserver<T> responseObserver,
ServerCallStreamObserver<T> serverCallStreamObserver, Class<T> grpcMessageType) {
Many<Message<byte[]>> inputStream = Sinks.many().unicast().onBackpressureBuffer();
Flux<Message<byte[]>> inputStreamFlux = inputStream.asFlux();
FunctionInvocationWrapper function = this.resolveFunction(null);
Publisher<Message<byte[]>> outputPublisher = (Publisher<Message<byte[]>>) function.apply(inputStreamFlux);
Flux.from(outputPublisher).subscribe(functionResult -> {
T outputMessage = toGrpcMessage(functionResult, grpcMessageType);
if (logger.isDebugEnabled()) {
logger.debug("gRPC Server replying: " + outputMessage);
}
responseObserver.onNext(outputMessage);
});
return new StreamObserver<T>() {
@Override
public void onNext(T inputMessage) {
if (logger.isDebugEnabled()) {
logger.debug("gRPC Server receiving: " + inputMessage);
}
//GRPC_MESSAGE_TYPE = (Class<T>) inputMessage.getClass();
inputStream.tryEmitNext(toSpringMessage(inputMessage));
serverCallStreamObserver.request(1);
}
@Override
public void onError(Throwable t) {
t.printStackTrace();
responseObserver.onCompleted();
}
@Override
public void onCompleted() {
logger.info("gRPC Server has finished receiving data.");
inputStream.tryEmitComplete();
responseObserver.onCompleted();
}
};
}
private StreamObserver<T> biStreamImperative(StreamObserver<T> responseObserver,
ServerCallStreamObserver<T> serverCallStreamObserver,
AtomicBoolean wasReady) {
return new StreamObserver<T>() {
@SuppressWarnings("unchecked")
@Override
public void onNext(T request) {
try {
Message<byte[]> message = toSpringMessage(request);
FunctionInvocationWrapper function = resolveFunction(
message.getHeaders());
Message<byte[]> replyMessage = (Message<byte[]>) function
.apply(message);
T reply = toGrpcMessage(replyMessage, (Class<T>) request.getClass());
responseObserver.onNext(reply);
// Check the provided ServerCallStreamObserver to see if it is still
// ready to accept more messages.
if (serverCallStreamObserver.isReady()) {
serverCallStreamObserver.request(1);
}
else {
wasReady.set(false);
}
}
catch (Throwable throwable) {
throwable.printStackTrace();
responseObserver.onError(
Status.UNKNOWN.withDescription("Error handling request")
.withCause(throwable).asException());
}
}
@Override
public void onError(Throwable t) {
t.printStackTrace();
responseObserver.onCompleted();
}
@Override
public void onCompleted() {
logger.info("gRPC Server has finished receiving data.");
responseObserver.onCompleted();
}
};
}
@SuppressWarnings({ "rawtypes", "unchecked" })
private T toGrpcMessage(Message<byte[]> request, Class<T> grpcClass) {
for (GrpcMessageConverter converter : this.grpcConverters) {
GeneratedMessageV3 grpcMessage = converter.fromSpringMessage(request, grpcClass);
if (grpcMessage != null) {
return (T) grpcMessage;
}
}
throw new IllegalStateException("Failed to convert Grpc Message to Spring Message: " + request);
}
@Override
public void start() {
this.running = true;
}
@Override
public void stop() {
this.executor.shutdown();
try {
Assert.isTrue(this.executor.awaitTermination(5000, TimeUnit.MILLISECONDS), "gRPC Server executor timed out while stopping, "
+ "since there are currently executing tasks");
}
catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
this.running = false;
}
@Override
public boolean isRunning() {
return this.running;
}
@SuppressWarnings({ "rawtypes", "unchecked" })
private Message<byte[]> toSpringMessage(GeneratedMessageV3 request) {
for (GrpcMessageConverter converter : this.grpcConverters) {
Message<byte[]> springMessage = converter.toSpringMessage(request);
if (springMessage != null) {
return springMessage;
}
}
throw new IllegalStateException("Failed to convert Grpc Message to Spring Message: " + request);
}
private FunctionInvocationWrapper resolveFunction(Map<String, Object> headers) {
String functionDefinition = funcProperties.getDefinition();
if (!CollectionUtils.isEmpty(headers) && headers.containsKey(FunctionProperties.FUNCTION_DEFINITION)) {
functionDefinition = (String) headers.get(FunctionProperties.FUNCTION_DEFINITION);
}
FunctionInvocationWrapper function = this.functionCatalog.lookup(functionDefinition, "application/json");
Assert.notNull(function, "Failed to lookup function " + funcProperties.getDefinition());
return function;
}
}

10
spring-cloud-function-grpc/src/main/proto/MessageService.proto
View File

@@ -2,17 +2,17 @@ syntax = "proto3";
option java_multiple_files = true;
package org.springframework.cloud.function.grpc;
message GrpcMessage {
message GrpcSpringMessage {
bytes payload = 1;
map<string, string> headers = 2;
}
service MessagingService {
rpc biStream(stream GrpcMessage) returns (stream GrpcMessage);
rpc biStream(stream GrpcSpringMessage) returns (stream GrpcSpringMessage);
rpc clientStream(stream GrpcMessage) returns (GrpcMessage);
rpc clientStream(stream GrpcSpringMessage) returns (GrpcSpringMessage);
rpc serverStream(GrpcMessage) returns (stream GrpcMessage);
rpc serverStream(GrpcSpringMessage) returns (stream GrpcSpringMessage);
rpc requestReply(GrpcMessage) returns (GrpcMessage);
rpc requestReply(GrpcSpringMessage) returns (GrpcSpringMessage);
}

33
spring-cloud-function-samples/function-sample-grpc-cloudevent/.gitignore vendored Normal file
View File

@@ -0,0 +1,33 @@
HELP.md
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
### STS ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### IntelliJ IDEA ###
.idea
*.iws
*.iml
*.ipr
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
### VS Code ###
.vscode/

117
spring-cloud-function-samples/function-sample-grpc-cloudevent/.mvn/wrapper/MavenWrapperDownloader.java vendored Normal file
View File

@@ -0,0 +1,117 @@
/*
* Copyright 2007-present the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import java.net.*;
import java.io.*;
import java.nio.channels.*;
import java.util.Properties;
public class MavenWrapperDownloader {
private static final String WRAPPER_VERSION = "0.5.6";
/**
* Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided.
*/
private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/"
+ WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar";
/**
* Path to the maven-wrapper.properties file, which might contain a downloadUrl property to
* use instead of the default one.
*/
private static final String MAVEN_WRAPPER_PROPERTIES_PATH =
".mvn/wrapper/maven-wrapper.properties";
/**
* Path where the maven-wrapper.jar will be saved to.
*/
private static final String MAVEN_WRAPPER_JAR_PATH =
".mvn/wrapper/maven-wrapper.jar";
/**
* Name of the property which should be used to override the default download url for the wrapper.
*/
private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl";
public static void main(String args[]) {
System.out.println("- Downloader started");
File baseDirectory = new File(args[0]);
System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath());
// If the maven-wrapper.properties exists, read it and check if it contains a custom
// wrapperUrl parameter.
File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH);
String url = DEFAULT_DOWNLOAD_URL;
if(mavenWrapperPropertyFile.exists()) {
FileInputStream mavenWrapperPropertyFileInputStream = null;
try {
mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile);
Properties mavenWrapperProperties = new Properties();
mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream);
url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url);
} catch (IOException e) {
System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'");
} finally {
try {
if(mavenWrapperPropertyFileInputStream != null) {
mavenWrapperPropertyFileInputStream.close();
}
} catch (IOException e) {
// Ignore ...
}
}
}
System.out.println("- Downloading from: " + url);
File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH);
if(!outputFile.getParentFile().exists()) {
if(!outputFile.getParentFile().mkdirs()) {
System.out.println(
"- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'");
}
}
System.out.println("- Downloading to: " + outputFile.getAbsolutePath());
try {
downloadFileFromURL(url, outputFile);
System.out.println("Done");
System.exit(0);
} catch (Throwable e) {
System.out.println("- Error downloading");
e.printStackTrace();
System.exit(1);
}
}
private static void downloadFileFromURL(String urlString, File destination) throws Exception {
if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) {
String username = System.getenv("MVNW_USERNAME");
char[] password = System.getenv("MVNW_PASSWORD").toCharArray();
Authenticator.setDefault(new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
return new PasswordAuthentication(username, password);
}
});
}
URL website = new URL(urlString);
ReadableByteChannel rbc;
rbc = Channels.newChannel(website.openStream());
FileOutputStream fos = new FileOutputStream(destination);
fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
fos.close();
rbc.close();
}
}

BIN
spring-cloud-function-samples/function-sample-grpc-cloudevent/.mvn/wrapper/maven-wrapper.jar vendored Normal file
View File

Binary file not shown.

2
spring-cloud-function-samples/function-sample-grpc-cloudevent/.mvn/wrapper/maven-wrapper.properties vendored Normal file
View File

@@ -0,0 +1,2 @@
distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.2/apache-maven-3.8.2-bin.zip
wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar

310
spring-cloud-function-samples/function-sample-grpc-cloudevent/mvnw vendored Executable file
View File

@@ -0,0 +1,310 @@
#!/bin/sh
# ----------------------------------------------------------------------------
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
# ----------------------------------------------------------------------------
# ----------------------------------------------------------------------------
# Maven Start Up Batch script
#
# Required ENV vars:
# ------------------
# JAVA_HOME - location of a JDK home dir
#
# Optional ENV vars
# -----------------
# M2_HOME - location of maven2's installed home dir
# MAVEN_OPTS - parameters passed to the Java VM when running Maven
# e.g. to debug Maven itself, use
# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
# MAVEN_SKIP_RC - flag to disable loading of mavenrc files
# ----------------------------------------------------------------------------
if [ -z "$MAVEN_SKIP_RC" ] ; then
if [ -f /etc/mavenrc ] ; then
. /etc/mavenrc
fi
if [ -f "$HOME/.mavenrc" ] ; then
. "$HOME/.mavenrc"
fi
fi
# OS specific support. $var _must_ be set to either true or false.
cygwin=false;
darwin=false;
mingw=false
case "`uname`" in
CYGWIN*) cygwin=true ;;
MINGW*) mingw=true;;
Darwin*) darwin=true
# Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
# See https://developer.apple.com/library/mac/qa/qa1170/_index.html
if [ -z "$JAVA_HOME" ]; then
if [ -x "/usr/libexec/java_home" ]; then
export JAVA_HOME="`/usr/libexec/java_home`"
else
export JAVA_HOME="/Library/Java/Home"
fi
fi
;;
esac
if [ -z "$JAVA_HOME" ] ; then
if [ -r /etc/gentoo-release ] ; then
JAVA_HOME=`java-config --jre-home`
fi
fi
if [ -z "$M2_HOME" ] ; then
## resolve links - $0 may be a link to maven's home
PRG="$0"
# need this for relative symlinks
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG="`dirname "$PRG"`/$link"
fi
done
saveddir=`pwd`
M2_HOME=`dirname "$PRG"`/..
# make it fully qualified
M2_HOME=`cd "$M2_HOME" && pwd`
cd "$saveddir"
# echo Using m2 at $M2_HOME
fi
# For Cygwin, ensure paths are in UNIX format before anything is touched
if $cygwin ; then
[ -n "$M2_HOME" ] &&
M2_HOME=`cygpath --unix "$M2_HOME"`
[ -n "$JAVA_HOME" ] &&
JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
[ -n "$CLASSPATH" ] &&
CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
fi
# For Mingw, ensure paths are in UNIX format before anything is touched
if $mingw ; then
[ -n "$M2_HOME" ] &&
M2_HOME="`(cd "$M2_HOME"; pwd)`"
[ -n "$JAVA_HOME" ] &&
JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
fi
if [ -z "$JAVA_HOME" ]; then
javaExecutable="`which javac`"
if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
# readlink(1) is not available as standard on Solaris 10.
readLink=`which readlink`
if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
if $darwin ; then
javaHome="`dirname \"$javaExecutable\"`"
javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
else
javaExecutable="`readlink -f \"$javaExecutable\"`"
fi
javaHome="`dirname \"$javaExecutable\"`"
javaHome=`expr "$javaHome" : '\(.*\)/bin'`
JAVA_HOME="$javaHome"
export JAVA_HOME
fi
fi
fi
if [ -z "$JAVACMD" ] ; then
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
else
JAVACMD="`which java`"
fi
fi
if [ ! -x "$JAVACMD" ] ; then
echo "Error: JAVA_HOME is not defined correctly." >&2
echo " We cannot execute $JAVACMD" >&2
exit 1
fi
if [ -z "$JAVA_HOME" ] ; then
echo "Warning: JAVA_HOME environment variable is not set."
fi
CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
# traverses directory structure from process work directory to filesystem root
# first directory with .mvn subdirectory is considered project base directory
find_maven_basedir() {
if [ -z "$1" ]
then
echo "Path not specified to find_maven_basedir"
return 1
fi
basedir="$1"
wdir="$1"
while [ "$wdir" != '/' ] ; do
if [ -d "$wdir"/.mvn ] ; then
basedir=$wdir
break
fi
# workaround for JBEAP-8937 (on Solaris 10/Sparc)
if [ -d "${wdir}" ]; then
wdir=`cd "$wdir/.."; pwd`
fi
# end of workaround
done
echo "${basedir}"
}
# concatenates all lines of a file
concat_lines() {
if [ -f "$1" ]; then
echo "$(tr -s '\n' ' ' < "$1")"
fi
}
BASE_DIR=`find_maven_basedir "$(pwd)"`
if [ -z "$BASE_DIR" ]; then
exit 1;
fi
##########################################################################################
# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
# This allows using the maven wrapper in projects that prohibit checking in binary data.
##########################################################################################
if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found .mvn/wrapper/maven-wrapper.jar"
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
fi
if [ -n "$MVNW_REPOURL" ]; then
jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
else
jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
fi
while IFS="=" read key value; do
case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
esac
done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
if [ "$MVNW_VERBOSE" = true ]; then
echo "Downloading from: $jarUrl"
fi
wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
if $cygwin; then
wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
fi
if command -v wget > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found wget ... using wget"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
wget "$jarUrl" -O "$wrapperJarPath"
else
wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath"
fi
elif command -v curl > /dev/null; then
if [ "$MVNW_VERBOSE" = true ]; then
echo "Found curl ... using curl"
fi
if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
curl -o "$wrapperJarPath" "$jarUrl" -f
else
curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
fi
else
if [ "$MVNW_VERBOSE" = true ]; then
echo "Falling back to using Java to download"
fi
javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
# For Cygwin, switch paths to Windows format before running javac
if $cygwin; then
javaClass=`cygpath --path --windows "$javaClass"`
fi
if [ -e "$javaClass" ]; then
if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Compiling MavenWrapperDownloader.java ..."
fi
# Compiling the Java class
("$JAVA_HOME/bin/javac" "$javaClass")
fi
if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
# Running the downloader
if [ "$MVNW_VERBOSE" = true ]; then
echo " - Running MavenWrapperDownloader.java ..."
fi
("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
fi
fi
fi
fi
##########################################################################################
# End of extension
##########################################################################################
export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
if [ "$MVNW_VERBOSE" = true ]; then
echo $MAVEN_PROJECTBASEDIR
fi
MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
# For Cygwin, switch paths to Windows format before running java
if $cygwin; then
[ -n "$M2_HOME" ] &&
M2_HOME=`cygpath --path --windows "$M2_HOME"`
[ -n "$JAVA_HOME" ] &&
JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
[ -n "$CLASSPATH" ] &&
CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
[ -n "$MAVEN_PROJECTBASEDIR" ] &&
MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
fi
# Provide a "standardized" way to retrieve the CLI args that will
# work with both Windows and non-Windows executions.
MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
export MAVEN_CMD_LINE_ARGS
WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
exec "$JAVACMD" \
$MAVEN_OPTS \
-classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
"-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

182
spring-cloud-function-samples/function-sample-grpc-cloudevent/mvnw.cmd vendored Normal file
View File

@@ -0,0 +1,182 @@
@REM ----------------------------------------------------------------------------
@REM Licensed to the Apache Software Foundation (ASF) under one
@REM or more contributor license agreements. See the NOTICE file
@REM distributed with this work for additional information
@REM regarding copyright ownership. The ASF licenses this file
@REM to you under the Apache License, Version 2.0 (the
@REM "License"); you may not use this file except in compliance
@REM with the License. You may obtain a copy of the License at
@REM
@REM https://www.apache.org/licenses/LICENSE-2.0
@REM
@REM Unless required by applicable law or agreed to in writing,
@REM software distributed under the License is distributed on an
@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
@REM KIND, either express or implied. See the License for the
@REM specific language governing permissions and limitations
@REM under the License.
@REM ----------------------------------------------------------------------------
@REM ----------------------------------------------------------------------------
@REM Maven Start Up Batch script
@REM
@REM Required ENV vars:
@REM JAVA_HOME - location of a JDK home dir
@REM
@REM Optional ENV vars
@REM M2_HOME - location of maven2's installed home dir
@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
@REM e.g. to debug Maven itself, use
@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
@REM ----------------------------------------------------------------------------
@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
@echo off
@REM set title of command window
title %0
@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO%
@REM set %HOME% to equivalent of $HOME
if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
@REM Execute a user defined script before this one
if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
@REM check for pre script, once with legacy .bat ending and once with .cmd ending
if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
:skipRcPre
@setlocal
set ERROR_CODE=0
@REM To isolate internal variables from possible post scripts, we use another setlocal
@setlocal
@REM ==== START VALIDATION ====
if not "%JAVA_HOME%" == "" goto OkJHome
echo.
echo Error: JAVA_HOME not found in your environment. >&2
echo Please set the JAVA_HOME variable in your environment to match the >&2
echo location of your Java installation. >&2
echo.
goto error
:OkJHome
if exist "%JAVA_HOME%\bin\java.exe" goto init
echo.
echo Error: JAVA_HOME is set to an invalid directory. >&2
echo JAVA_HOME = "%JAVA_HOME%" >&2
echo Please set the JAVA_HOME variable in your environment to match the >&2
echo location of your Java installation. >&2
echo.
goto error
@REM ==== END VALIDATION ====
:init
@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
@REM Fallback to current working directory if not found.
set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
set EXEC_DIR=%CD%
set WDIR=%EXEC_DIR%
:findBaseDir
IF EXIST "%WDIR%"\.mvn goto baseDirFound
cd ..
IF "%WDIR%"=="%CD%" goto baseDirNotFound
set WDIR=%CD%
goto findBaseDir
:baseDirFound
set MAVEN_PROJECTBASEDIR=%WDIR%
cd "%EXEC_DIR%"
goto endDetectBaseDir
:baseDirNotFound
set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
cd "%EXEC_DIR%"
:endDetectBaseDir
IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
@setlocal EnableExtensions EnableDelayedExpansion
for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
:endReadAdditionalConfig
SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
FOR /F "tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
)
@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
if exist %WRAPPER_JAR% (
if "%MVNW_VERBOSE%" == "true" (
echo Found %WRAPPER_JAR%
)
) else (
if not "%MVNW_REPOURL%" == "" (
SET DOWNLOAD_URL="%MVNW_REPOURL%/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
)
if "%MVNW_VERBOSE%" == "true" (
echo Couldn't find %WRAPPER_JAR%, downloading it ...
echo Downloading from: %DOWNLOAD_URL%
)
powershell -Command "&{"^
"$webclient = new-object System.Net.WebClient;"^
"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
"}"^
"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
"}"
if "%MVNW_VERBOSE%" == "true" (
echo Finished downloading %WRAPPER_JAR%
)
)
@REM End of extension
@REM Provide a "standardized" way to retrieve the CLI args that will
@REM work with both Windows and non-Windows executions.
set MAVEN_CMD_LINE_ARGS=%*
%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
if ERRORLEVEL 1 goto error
goto end
:error
set ERROR_CODE=1
:end
@endlocal & set ERROR_CODE=%ERROR_CODE%
if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
@REM check for post script, once with legacy .bat ending and once with .cmd ending
if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
:skipRcPost
@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
if "%MAVEN_BATCH_PAUSE%" == "on" pause
if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
exit /B %ERROR_CODE%

128
spring-cloud-function-samples/function-sample-grpc-cloudevent/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.6.0-M3</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example.grpc</groupId>
<artifactId>function-sample-grpc-cloudevent</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>function-sample-grpc-cloudevent</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-function-grpc-cloudevent-ext</artifactId>
<version>3.2.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-netty</artifactId>
<version>1.16.1</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-protobuf</artifactId>
<version>1.16.1</version>
</dependency>
<dependency>
<groupId>io.grpc</groupId>
<artifactId>grpc-stub</artifactId>
<version>1.16.1</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<extensions>
<extension>
<groupId>kr.motd.maven</groupId>
<artifactId>os-maven-plugin</artifactId>
<version>1.6.1</version>
</extension>
</extensions>
<plugins>
<plugin>
<groupId>org.xolstice.maven.plugins</groupId>
<artifactId>protobuf-maven-plugin</artifactId>
<version>0.6.1</version>
<configuration>
<protocArtifact>
com.google.protobuf:protoc:3.3.0:exe:${os.detected.classifier}
</protocArtifact>
<pluginId>grpc-java</pluginId>
<pluginArtifact>
io.grpc:protoc-gen-grpc-java:1.4.0:exe:${os.detected.classifier}
</pluginArtifact>
</configuration>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>compile-custom</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<releases>
<enabled>false</enabled>
</releases>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-milestones</id>
<name>Spring Milestones</name>
<url>https://repo.spring.io/milestone</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</pluginRepository>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<releases>
<enabled>false</enabled>
</releases>
</pluginRepository>
</pluginRepositories>
</project>

65
spring-cloud-function-samples/function-sample-grpc-cloudevent/src/main/java/com/example/grpc/demo/DemoGrpcApplication.java Normal file
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package com.example.grpc.demo;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Function;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.function.grpc.MessagingServiceGrpc;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.messaging.Message;
import org.springframework.messaging.support.MessageBuilder;
import com.google.protobuf.DescriptorProtos.FileDescriptorProto;
import com.google.protobuf.DescriptorProtos.FileDescriptorSet;
import com.google.protobuf.Descriptors.FileDescriptor;
import com.google.protobuf.ProtocolStringList;
import io.cloudevents.v1.CloudEventServiceGrpc;
import io.cloudevents.v1.proto.CloudEvent;
import io.cloudevents.v1.proto.CloudEvent.CloudEventAttributeValue;
import io.grpc.ManagedChannel;
import io.grpc.ManagedChannelBuilder;
@SpringBootApplication
public class DemoGrpcApplication {
public static void main(String[] args) throws Exception {
SpringApplication.run(DemoGrpcApplication.class, args);
CloudEvent cloudEvent = CloudEvent.newBuilder()
.setTextData("{\"event_name\":\"SCF supports CloudEvent gRPC\"}")
.setSource("http://springsource.com")
.setId("12345")
.setSpecVersion("1.0")
.setType("org.springframework")
.putAttributes("name", CloudEventAttributeValue.newBuilder().setCeString("oleg").build())
.putAttributes("fluent_in_french", CloudEventAttributeValue.newBuilder().setCeBoolean(false).build())
.build();
ManagedChannel channel = ManagedChannelBuilder.forAddress("localhost", 6048)
.usePlaintext().build();
CloudEventServiceGrpc.CloudEventServiceBlockingStub stub = CloudEventServiceGrpc.newBlockingStub(channel);
CloudEvent reply = stub.requestReply(cloudEvent);
System.out.println(reply);
}
@Bean
public Function<Message<String>, Message<String>> uppercase() {
return message -> {
return MessageBuilder.withPayload(message.getPayload().toUpperCase())
.copyHeaders(message.getHeaders())
.setHeader("uppercased", "true")
.build();
};
}
}

49
spring-cloud-function-samples/function-sample-grpc-cloudevent/src/main/proto/CloudEvent.proto Normal file
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syntax = "proto3";
package io.cloudevents.v1;
import "google/protobuf/any.proto";
import "google/protobuf/timestamp.proto";
option go_package = "cloudevents.io/genproto/v1";
option java_package = "io.cloudevents.v1.proto";
option java_multiple_files = true;
message CloudEvent {
// -- CloudEvent Context Attributes
// Required Attributes
string id = 1;
string source = 2; // URI-reference
string spec_version = 3;
string type = 4;
// Optional & Extension Attributes
map<string, CloudEventAttributeValue> attributes = 5;
// -- CloudEvent Data (Bytes, Text, or Proto)
oneof data {
bytes binary_data = 6;
string text_data = 7;
google.protobuf.Any proto_data = 8;
}
/**
* The CloudEvent specification defines
* seven attribute value types...
*/
message CloudEventAttributeValue {
oneof attr {
bool ce_boolean = 1;
int32 ce_integer = 2;
string ce_string = 3;
bytes ce_bytes = 4;
string ce_uri = 5;
string ce_uri_ref = 6;
google.protobuf.Timestamp ce_timestamp = 7;
}
}
}

17
spring-cloud-function-samples/function-sample-grpc-cloudevent/src/main/proto/CloudEventService.proto Normal file
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syntax = "proto3";
package io.cloudevents.v1;
import "google/protobuf/any.proto";
import "google/protobuf/timestamp.proto";
import "CloudEvent.proto";
service CloudEventService {
rpc biStream(stream io.cloudevents.v1.CloudEvent) returns (stream io.cloudevents.v1.CloudEvent);
rpc clientStream(stream io.cloudevents.v1.CloudEvent) returns (io.cloudevents.v1.CloudEvent);
rpc serverStream(io.cloudevents.v1.CloudEvent) returns (stream io.cloudevents.v1.CloudEvent);
rpc requestReply(io.cloudevents.v1.CloudEvent) returns (io.cloudevents.v1.CloudEvent);
}

1
spring-cloud-function-samples/function-sample-grpc-cloudevent/src/main/resources/application.properties Normal file
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13
spring-cloud-function-samples/function-sample-grpc-cloudevent/src/test/java/com/example/grpc/demo/DemoGrpcApplicationTests.java Normal file
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package com.example.grpc.demo;
import org.junit.jupiter.api.Test;
import org.springframework.boot.test.context.SpringBootTest;
@SpringBootTest
class DemoGrpcApplicationTests {
@Test
void contextLoads() {
}
}