INTSAMPLES-88 Message Handler Advice Samples
Initial Commit Stateless Retry INTSAMPLES-88 Add Stateful Retry (AMQP) INTSAMPLES-88 Add Circuit Breaker Demo INTSAMPLES-88 Add Expression Evaluating Advice See README.md Fix EE Polishing
This commit is contained in:
Gary Russell
@@ -61,6 +61,7 @@ This category targets developers who are already more familiar with the Spring I
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* **stored-procedures-derby** Provides an example of the stored procedure Outbound Gateway using *[Apache Derby](http://db.apache.org/derby/)*
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* **stored-procedures-oracle** Provides an example of the stored procedure Outbound Gateway using *ORACLE XE*
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* **monitoring** The project used in the *[Spring Integration Management and Monitoring Webinar](http://www.springsource.org/node/3598)* Also available on the *[SpringSourceDev YouTube Channel](http://www.youtube.com/SpringSourceDev)*
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* **retry-and-more** Provides samples showing the application of MessageHandler Advice Chains to endpoints - retry, circuit breaker, expression evaluating
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## Advanced
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60
intermediate/retry-and-more/README.md
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60
intermediate/retry-and-more/README.md
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Handler Advice Sample "retry-and-more"
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======================================
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This sample shows how to use the 2.2.0 Handler Advice feature.
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##Stateless Retry Advice Demo
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This class (`StatelessRetryDemo`) demonstrates stateless retry.
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By default, it runs with a simple default retry (3 tries, no backoff, no recovery)
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Run with -Dspring.profiles.active=backoff to run with 3 tries, exponential backoff, no recovery
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Run with -Dspring.profiles.active=recovery to run with 3 tries, no backoff, error message "recovery"
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In each case enter 'fail n' where n is the number of times you want the service to fail.
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e.g. 'fail 2' will succeed in each case on the third try, 'fail 3' will fail permanently after the third try.
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##Stateful Retry Advice Demo
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This class (`StatefulRetryDemo`) demonstrates stateful retry.
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It is similar to the default version of the stateless retry but uses AMQP; you will see that the exception are thrown back to the container and the retries are re-delivered by AMQP.
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##Circuit Breaker Advice Demo
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This class (`CircuitBreakerDemo`) demonstrates the circuit breaker advice.
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In this demo, the target service only succeeds in the last quarter of any minute (seconds 45-59). The breaker's threshold is set to 2, with the breaker going half-open once 15 seconds have elapsed since the last failure.
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You can observe the function of the advice by entering a number of messages over time, and watch the resulting messages.
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##Expression Evaluating Advice Demo
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`FileTransferDeleteAfterSuccessDemo`
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`FileTransferRenameAfterFailureDemo`
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These classes show how to configure expressions to be evaluated after either succes, or failure; the application context is defined in expression-advice-context-xml.
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It is a simulation of an application with a file inbound adapter -> ftp outbound adapter.
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The advice on the outbound adapter evaluates an expression after the transfer - delete the file on success, rename it on failure.
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The results of the expression evaluation are then logged (INFO or ERROR).
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No real FTP is involved; mocks are used to simulate the transfer (success or failure).
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In both cases simply add a file ending with .txt in ${java.io.tmpdir}/adviceDemo (e.g. touch /tmp/adviceDemo/x,txt) and the results will appear in the console.
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##Running the Demos
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In each case, run the main method in each of the demonstration classes.
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92
intermediate/retry-and-more/pom.xml
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92
intermediate/retry-and-more/pom.xml
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@@ -0,0 +1,92 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>org.springframework.integration.samples</groupId>
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<artifactId>retry-and-more</artifactId>
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<version>2.1.0.BUILD-SNAPSHOT</version>
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<name>Samples (Intermediate) - Retry and More</name>
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<packaging>jar</packaging>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<spring.framework.version>3.1.2.RELEASE</spring.framework.version>
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<spring.integration.version>2.2.0.RC1</spring.integration.version>
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<log4j.version>1.2.16</log4j.version>
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<junit.version>4.10</junit.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.integration</groupId>
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<artifactId>spring-integration-stream</artifactId>
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<version>${spring.integration.version}</version>
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</dependency>
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<dependency>
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<groupId>org.springframework.integration</groupId>
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<artifactId>spring-integration-amqp</artifactId>
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<version>${spring.integration.version}</version>
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</dependency>
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<dependency>
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<groupId>org.springframework.integration</groupId>
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<artifactId>spring-integration-file</artifactId>
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<version>${spring.integration.version}</version>
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</dependency>
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<dependency>
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<groupId>org.springframework.integration</groupId>
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<artifactId>spring-integration-ftp</artifactId>
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<version>${spring.integration.version}</version>
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</dependency>
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<dependency>
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<groupId>log4j</groupId>
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<artifactId>log4j</artifactId>
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<version>${log4j.version}</version>
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</dependency>
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<dependency>
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<groupId>org.mockito</groupId>
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<artifactId>mockito-all</artifactId>
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<version>1.8.5</version>
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</dependency>
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<!-- test-scoped dependencies -->
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-test</artifactId>
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<version>${spring.framework.version}</version>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>${junit.version}</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>2.3.2</version>
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<configuration>
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<source>1.5</source>
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<target>1.5</target>
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<compilerArgument>-Xlint:all</compilerArgument>
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<showWarnings>true</showWarnings>
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<showDeprecation>false</showDeprecation>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.codehaus.mojo</groupId>
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<artifactId>exec-maven-plugin</artifactId>
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<version>1.2</version>
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<configuration>
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<mainClass>${java.main.class}</mainClass>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<repositories>
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<repository>
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<id>repo.springsource.org.milestone</id>
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<name>Spring Framework Maven Milestone Repository</name>
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<url>https://repo.springsource.org/libs-milestone</url>
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</repository>
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</repositories>
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</project>
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@@ -0,0 +1,58 @@
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/*
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* Copyright 2002-2012 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.springframework.integration.samples.advice;
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import org.apache.log4j.Logger;
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import org.springframework.context.support.AbstractApplicationContext;
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import org.springframework.context.support.ClassPathXmlApplicationContext;
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/**
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* @author Gary Russell
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* @since 2.2
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*
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*/
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public class CircuitBreakerDemo {
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private static final Logger LOGGER = Logger.getLogger(CircuitBreakerDemo.class);
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public static void main(String[] args) {
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LOGGER.info("\n========================================================="
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+ "\n "
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+ "\n Welcome to Spring Integration! "
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+ "\n "
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+ "\n For more information please visit: "
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+ "\n http://www.springsource.org/spring-integration "
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+ "\n "
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+ "\n=========================================================" );
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final AbstractApplicationContext context =
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new ClassPathXmlApplicationContext("classpath:META-INF/spring/integration/circuit-breaker-advice-context.xml");
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context.registerShutdownHook();
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LOGGER.info("\n========================================================="
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+ "\n "
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+ "\n This is the Circuit Breaker Sample - "
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+ "\n "
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+ "\n Please enter some text and press return a few times. "
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+ "\n Service will succeed only in the last quarter "
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+ "\n minute. Breaker will open after 2 failures and "
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+ "\n will go half-open after 15 seconds. "
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+ "\n "
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+ "\n=========================================================" );
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}
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}
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@@ -0,0 +1,75 @@
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/*
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* Copyright 2002-2012 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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||||
*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.springframework.integration.samples.advice;
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import java.util.Calendar;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.concurrent.atomic.AtomicInteger;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.springframework.integration.annotation.Header;
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/**
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* @author Gary Russell
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* @since 2.2
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*
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*/
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public class ConditionalService {
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private final Log logger = LogFactory.getLog(this.getClass());
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private final Map<String, AtomicInteger> failCount = new HashMap<String, AtomicInteger>();
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/**
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* If this service receives a payload 'failnnn' where nnn is the number of failures,
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* it will fail that many times for a given message id.
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* @param payload
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* @param id
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*/
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public void testRetry(String payload, @Header("failingId") String id) {
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if (payload.startsWith("fail")) {
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int failHowManyTimes = Integer.parseInt(payload.substring(4).trim());
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AtomicInteger failures = failCount.get(id);
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if (failures == null) {
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failures = new AtomicInteger();
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failCount.put(id, failures);
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}
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int currentFailures = failures.incrementAndGet();
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if (currentFailures <= failHowManyTimes) {
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String message = "Failure " + currentFailures + " of " + failHowManyTimes;
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logger.info("Service failure " + message);
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throw new RuntimeException(message);
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}
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}
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logger.info("Service success for " + payload);
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failCount.remove(id);
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}
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/**
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* Succeeds only if called any time in the fourth quarter of any minute (seconds 45 thru 59)
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* @param payload
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*/
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public void testCircuitBreaker(String payload) {
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Calendar calendar = Calendar.getInstance();
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if (calendar.get(Calendar.SECOND) < 45) {
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logger.info("Service failure");
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throw new RuntimeException("Service failed");
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}
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logger.info("Service success for " + payload);
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}
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}
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@@ -0,0 +1,79 @@
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/*
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* Copyright 2002-2012 the original author or authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
|
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* you may not use this file except in compliance with the License.
|
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* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
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*
|
||||
* 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.integration.samples.advice;
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import static org.mockito.Mockito.mock;
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import static org.mockito.Mockito.when;
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import org.apache.commons.net.ftp.FTPFile;
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import org.apache.log4j.Logger;
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import org.springframework.context.support.AbstractApplicationContext;
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import org.springframework.context.support.ClassPathXmlApplicationContext;
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import org.springframework.integration.endpoint.SourcePollingChannelAdapter;
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import org.springframework.integration.file.remote.session.Session;
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import org.springframework.integration.file.remote.session.SessionFactory;
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|
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/**
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* @author Gary Russell
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* @since 2.2
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*
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*/
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public class FileTransferDeleteAfterSuccessDemo {
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private static final Logger LOGGER = Logger.getLogger(FileTransferDeleteAfterSuccessDemo.class);
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public static void main(String[] args) throws Exception {
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LOGGER.info("\n========================================================="
|
||||
+ "\n "
|
||||
+ "\n Welcome to Spring Integration! "
|
||||
+ "\n "
|
||||
+ "\n For more information please visit: "
|
||||
+ "\n http://www.springsource.org/spring-integration "
|
||||
+ "\n "
|
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+ "\n=========================================================" );
|
||||
|
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final AbstractApplicationContext context =
|
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new ClassPathXmlApplicationContext("classpath:META-INF/spring/integration/expression-advice-context.xml");
|
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|
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context.registerShutdownHook();
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|
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@SuppressWarnings("unchecked")
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SessionFactory<FTPFile> sessionFactory = context.getBean(SessionFactory.class);
|
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SourcePollingChannelAdapter fileInbound = context.getBean(SourcePollingChannelAdapter.class);
|
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|
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@SuppressWarnings("unchecked")
|
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Session<FTPFile> session = mock(Session.class);
|
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when(sessionFactory.getSession()).thenReturn(session);
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fileInbound.start();
|
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|
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LOGGER.info("\n========================================================="
|
||||
+ "\n "
|
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+ "\n This is the Expression Advice Sample - "
|
||||
+ "\n "
|
||||
+ "\n Press 'Enter' to terminate. "
|
||||
+ "\n "
|
||||
+ "\n Place a file in ${java.io.tmpdir}/adviceDemo ending "
|
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+ "\n with .txt "
|
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+ "\n The demo simulates a file transfer followed by the "
|
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+ "\n Advice deleting the file; the result of the deletion "
|
||||
+ "\n is logged. "
|
||||
+ "\n "
|
||||
+ "\n=========================================================" );
|
||||
|
||||
System.in.read();
|
||||
System.exit(0);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,75 @@
|
||||
/*
|
||||
* Copyright 2002-2012 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
|
||||
*
|
||||
* http://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.integration.samples.advice;
|
||||
|
||||
import static org.mockito.Mockito.when;
|
||||
|
||||
import org.apache.commons.net.ftp.FTPFile;
|
||||
import org.apache.log4j.Logger;
|
||||
import org.springframework.context.support.AbstractApplicationContext;
|
||||
import org.springframework.context.support.ClassPathXmlApplicationContext;
|
||||
import org.springframework.integration.endpoint.SourcePollingChannelAdapter;
|
||||
import org.springframework.integration.file.remote.session.SessionFactory;
|
||||
|
||||
/**
|
||||
* @author Gary Russell
|
||||
* @since 2.2
|
||||
*
|
||||
*/
|
||||
public class FileTransferRenameAfterFailureDemo {
|
||||
|
||||
private static final Logger LOGGER = Logger.getLogger(FileTransferRenameAfterFailureDemo.class);
|
||||
|
||||
public static void main(String[] args) throws Exception {
|
||||
LOGGER.info("\n========================================================="
|
||||
+ "\n "
|
||||
+ "\n Welcome to Spring Integration! "
|
||||
+ "\n "
|
||||
+ "\n For more information please visit: "
|
||||
+ "\n http://www.springsource.org/spring-integration "
|
||||
+ "\n "
|
||||
+ "\n=========================================================" );
|
||||
|
||||
final AbstractApplicationContext context =
|
||||
new ClassPathXmlApplicationContext("classpath:META-INF/spring/integration/expression-advice-context.xml");
|
||||
|
||||
context.registerShutdownHook();
|
||||
|
||||
@SuppressWarnings("unchecked")
|
||||
SessionFactory<FTPFile> sessionFactory = context.getBean(SessionFactory.class);
|
||||
SourcePollingChannelAdapter fileInbound = context.getBean(SourcePollingChannelAdapter.class);
|
||||
|
||||
when(sessionFactory.getSession()).thenThrow(new RuntimeException("Force Failure"));
|
||||
fileInbound.start();
|
||||
|
||||
LOGGER.info("\n========================================================="
|
||||
+ "\n "
|
||||
+ "\n This is the Expression Advice Sample - "
|
||||
+ "\n "
|
||||
+ "\n Press 'Enter' to terminate. "
|
||||
+ "\n "
|
||||
+ "\n Place a file in ${java.io.tmpdir}/adviceDemo ending "
|
||||
+ "\n with .txt "
|
||||
+ "\n The demo simulates a file transfer failure followed "
|
||||
+ "\n by the Advice renaming the file; the result of the "
|
||||
+ "\n rename is logged. "
|
||||
+ "\n "
|
||||
+ "\n=========================================================" );
|
||||
|
||||
System.in.read();
|
||||
System.exit(0);
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,57 @@
|
||||
/*
|
||||
* Copyright 2002-2012 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
|
||||
*
|
||||
* http://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.integration.samples.advice;
|
||||
|
||||
import org.apache.log4j.Logger;
|
||||
import org.springframework.context.support.AbstractApplicationContext;
|
||||
import org.springframework.context.support.ClassPathXmlApplicationContext;
|
||||
|
||||
/**
|
||||
* @author Gary Russell
|
||||
* @since 2.2
|
||||
*
|
||||
*/
|
||||
public class StatefulRetryDemo {
|
||||
|
||||
private static final Logger LOGGER = Logger.getLogger(StatefulRetryDemo.class);
|
||||
|
||||
public static void main(String[] args) {
|
||||
LOGGER.info("\n========================================================="
|
||||
+ "\n "
|
||||
+ "\n Welcome to Spring Integration! "
|
||||
+ "\n "
|
||||
+ "\n For more information please visit: "
|
||||
+ "\n http://www.springsource.org/spring-integration "
|
||||
+ "\n "
|
||||
+ "\n=========================================================" );
|
||||
|
||||
final AbstractApplicationContext context =
|
||||
new ClassPathXmlApplicationContext("classpath:META-INF/spring/integration/stateful-retry-advice-context.xml");
|
||||
|
||||
context.registerShutdownHook();
|
||||
|
||||
LOGGER.info("\n========================================================="
|
||||
+ "\n "
|
||||
+ "\n This is the Stateful Sample - "
|
||||
+ "\n "
|
||||
+ "\n Please enter some text and press return. "
|
||||
+ "\n 'fail 2' will fail twice, then succeed "
|
||||
+ "\n 'fail 3' will fail and never succeed "
|
||||
+ "\n "
|
||||
+ "\n=========================================================" );
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,57 @@
|
||||
/*
|
||||
* Copyright 2002-2012 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
|
||||
*
|
||||
* http://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.integration.samples.advice;
|
||||
|
||||
import org.apache.log4j.Logger;
|
||||
import org.springframework.context.support.AbstractApplicationContext;
|
||||
import org.springframework.context.support.ClassPathXmlApplicationContext;
|
||||
|
||||
/**
|
||||
* @author Gary Russell
|
||||
* @since 2.2
|
||||
*
|
||||
*/
|
||||
public class StatelessRetryDemo {
|
||||
|
||||
private static final Logger LOGGER = Logger.getLogger(StatelessRetryDemo.class);
|
||||
|
||||
public static void main(String[] args) {
|
||||
LOGGER.info("\n========================================================="
|
||||
+ "\n "
|
||||
+ "\n Welcome to Spring Integration! "
|
||||
+ "\n "
|
||||
+ "\n For more information please visit: "
|
||||
+ "\n http://www.springsource.org/spring-integration "
|
||||
+ "\n "
|
||||
+ "\n=========================================================" );
|
||||
|
||||
final AbstractApplicationContext context =
|
||||
new ClassPathXmlApplicationContext("classpath:META-INF/spring/integration/stateless-retry-advice-context.xml");
|
||||
|
||||
context.registerShutdownHook();
|
||||
|
||||
LOGGER.info("\n========================================================="
|
||||
+ "\n "
|
||||
+ "\n This is the Stateless Sample - "
|
||||
+ "\n "
|
||||
+ "\n Please enter some text and press return. "
|
||||
+ "\n 'fail 2' will fail twice, then succeed "
|
||||
+ "\n 'fail 3' will fail and never succeed "
|
||||
+ "\n "
|
||||
+ "\n=========================================================" );
|
||||
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,38 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
||||
xmlns="http://www.springframework.org/schema/beans"
|
||||
xmlns:int="http://www.springframework.org/schema/integration"
|
||||
xmlns:int-stream="http://www.springframework.org/schema/integration/stream"
|
||||
xsi:schemaLocation="http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration.xsd
|
||||
http://www.springframework.org/schema/integration/stream http://www.springframework.org/schema/integration/stream/spring-integration-stream-2.2.xsd
|
||||
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
|
||||
|
||||
<int-stream:stdin-channel-adapter channel="inputChannel">
|
||||
<int:poller fixed-delay="1000" error-channel="failedChannel" />
|
||||
</int-stream:stdin-channel-adapter>
|
||||
|
||||
<int:channel id="inputChannel"/>
|
||||
|
||||
<int:service-activator input-channel="inputChannel"
|
||||
ref="conditionalService"
|
||||
method="testCircuitBreaker">
|
||||
<int:request-handler-advice-chain>
|
||||
<ref bean="circuitBreakerAdvice" />
|
||||
</int:request-handler-advice-chain>
|
||||
</int:service-activator>
|
||||
|
||||
<int:channel id="failedChannel" />
|
||||
|
||||
<int:chain input-channel="failedChannel">
|
||||
<int:transformer expression="'failed:' + payload.failedMessage.payload + ' with ' + payload.cause.message" />
|
||||
<int-stream:stderr-channel-adapter append-newline="true"/>
|
||||
</int:chain>
|
||||
|
||||
<bean id="conditionalService" class="org.springframework.integration.samples.advice.ConditionalService" />
|
||||
|
||||
<bean id="circuitBreakerAdvice" class="org.springframework.integration.handler.advice.RequestHandlerCircuitBreakerAdvice">
|
||||
<property name="threshold" value="2" /> <!-- close after 2 failures -->
|
||||
<property name="halfOpenAfter" value="15000" /> <!-- half open after 15 seconds -->
|
||||
</bean>
|
||||
|
||||
</beans>
|
||||
@@ -0,0 +1,58 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
||||
xmlns="http://www.springframework.org/schema/beans"
|
||||
xmlns:int="http://www.springframework.org/schema/integration"
|
||||
xmlns:int-stream="http://www.springframework.org/schema/integration/stream"
|
||||
xmlns:context="http://www.springframework.org/schema/context"
|
||||
xmlns:int-file="http://www.springframework.org/schema/integration/file"
|
||||
xmlns:int-ftp="http://www.springframework.org/schema/integration/ftp"
|
||||
xsi:schemaLocation="http://www.springframework.org/schema/integration/ftp http://www.springframework.org/schema/integration/ftp/spring-integration-ftp-2.2.xsd
|
||||
http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration.xsd
|
||||
http://www.springframework.org/schema/integration/file http://www.springframework.org/schema/integration/file/spring-integration-file-2.2.xsd
|
||||
http://www.springframework.org/schema/integration/stream http://www.springframework.org/schema/integration/stream/spring-integration-stream-2.2.xsd
|
||||
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
|
||||
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
|
||||
|
||||
<context:property-placeholder />
|
||||
|
||||
<int-file:inbound-channel-adapter
|
||||
channel="inputChannel"
|
||||
auto-startup="false"
|
||||
auto-create-directory="true"
|
||||
filename-pattern="*.txt"
|
||||
directory="${java.io.tmpdir}/adviceDemo/">
|
||||
<int:poller fixed-delay="500" error-channel="nullChannel" />
|
||||
</int-file:inbound-channel-adapter>
|
||||
|
||||
<int:channel id="inputChannel" />
|
||||
|
||||
<int-ftp:outbound-channel-adapter
|
||||
channel="inputChannel"
|
||||
session-factory="mockSessionFactory"
|
||||
remote-directory="foo">
|
||||
<int-ftp:request-handler-advice-chain>
|
||||
<bean class="org.springframework.integration.handler.advice.ExpressionEvaluatingRequestHandlerAdvice">
|
||||
<property name="onSuccessExpression" value="payload.delete()" />
|
||||
<property name="successChannel" ref="afterSuccessDeleteChannel" />
|
||||
<property name="onFailureExpression" value="payload.renameTo(payload.absolutePath + '.failed.to.send')" />
|
||||
<property name="failureChannel" ref="afterFailRenameChannel" />
|
||||
</bean>
|
||||
</int-ftp:request-handler-advice-chain>
|
||||
</int-ftp:outbound-channel-adapter>
|
||||
|
||||
<bean id="mockSessionFactory" class="org.mockito.Mockito" factory-method="mock">
|
||||
<constructor-arg value="org.springframework.integration.file.remote.session.SessionFactory" />
|
||||
</bean>
|
||||
|
||||
<int:transformer input-channel="afterSuccessDeleteChannel" output-channel="goodResultChannel"
|
||||
expression="'Removal of ' + inputMessage.payload.absolutePath + ' after transfer, result:' +
|
||||
payload" />
|
||||
|
||||
<int:transformer input-channel="afterFailRenameChannel" output-channel="badResultChannel"
|
||||
expression="'Renaming of ' + payload.failedMessage.payload.absolutePath + ' after failed transfer, result:' +
|
||||
payload.evaluationResult" />
|
||||
|
||||
<int:logging-channel-adapter id="goodResultChannel" level="INFO" />
|
||||
|
||||
<int:logging-channel-adapter id="badResultChannel" level="ERROR"/>
|
||||
</beans>
|
||||
@@ -0,0 +1,101 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
||||
xmlns="http://www.springframework.org/schema/beans"
|
||||
xmlns:int="http://www.springframework.org/schema/integration"
|
||||
xmlns:int-stream="http://www.springframework.org/schema/integration/stream"
|
||||
xmlns:int-amqp="http://www.springframework.org/schema/integration/amqp"
|
||||
xmlns:rabbit="http://www.springframework.org/schema/rabbit"
|
||||
xsi:schemaLocation="http://www.springframework.org/schema/integration/amqp http://www.springframework.org/schema/integration/amqp/spring-integration-amqp-2.2.xsd
|
||||
http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration.xsd
|
||||
http://www.springframework.org/schema/integration/stream http://www.springframework.org/schema/integration/stream/spring-integration-stream-2.2.xsd
|
||||
http://www.springframework.org/schema/rabbit http://www.springframework.org/schema/rabbit/spring-rabbit-1.1.xsd
|
||||
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
|
||||
|
||||
<!-- From STDIN To RabbitMQ -->
|
||||
|
||||
<int-stream:stdin-channel-adapter id="consoleIn" channel="toRabbit" >
|
||||
<int:poller fixed-delay="1000" max-messages-per-poll="1" />
|
||||
</int-stream:stdin-channel-adapter>
|
||||
|
||||
<int:channel id="toRabbit" />
|
||||
|
||||
<int:chain input-channel="toRabbit">
|
||||
<int:header-enricher>
|
||||
<int:header name="uniqueId" expression="T(System).nanoTime()"/>
|
||||
</int:header-enricher>
|
||||
<int-amqp:outbound-channel-adapter mapped-request-headers="uniqueId"
|
||||
amqp-template="amqpTemplate" exchange-name="si.test.exchange"
|
||||
routing-key="si.test.binding"/>
|
||||
</int:chain>
|
||||
|
||||
|
||||
<!-- From RabbitMQ To inputChannel -->
|
||||
|
||||
<int-amqp:inbound-channel-adapter channel="inputChannel"
|
||||
mapped-request-headers="uniqueId"
|
||||
queue-names="si.test.queue"
|
||||
connection-factory="connectionFactory" />
|
||||
|
||||
<int:channel id="inputChannel"/>
|
||||
|
||||
<int:header-enricher input-channel="inputChannel" output-channel="toServiceChannel">
|
||||
<int:header name="failingId" expression="headers['uniqueId'].toString()" />
|
||||
</int:header-enricher>
|
||||
|
||||
<int:service-activator input-channel="toServiceChannel"
|
||||
ref="conditionalService"
|
||||
method="testRetry">
|
||||
<int:request-handler-advice-chain>
|
||||
<ref bean="retryAdvice" />
|
||||
</int:request-handler-advice-chain>
|
||||
</int:service-activator>
|
||||
|
||||
<int:channel id="failedChannel" />
|
||||
|
||||
<int:chain input-channel="failedChannel">
|
||||
<int:transformer expression="'permanently failed:' + payload.failedMessage.payload" />
|
||||
<int-stream:stderr-channel-adapter append-newline="true"/>
|
||||
</int:chain>
|
||||
|
||||
<bean id="conditionalService" class="org.springframework.integration.samples.advice.ConditionalService" />
|
||||
|
||||
|
||||
<!-- Rabbit infrastructure -->
|
||||
|
||||
<rabbit:connection-factory id="connectionFactory" />
|
||||
|
||||
<rabbit:template id="amqpTemplate" connection-factory="connectionFactory" />
|
||||
|
||||
<rabbit:admin connection-factory="connectionFactory" />
|
||||
|
||||
<rabbit:queue name="si.test.queue" />
|
||||
|
||||
<rabbit:direct-exchange name="si.test.exchange">
|
||||
<rabbit:bindings>
|
||||
<rabbit:binding queue="si.test.queue" key="si.test.binding" />
|
||||
</rabbit:bindings>
|
||||
</rabbit:direct-exchange>
|
||||
|
||||
<beans profile="default">
|
||||
<bean id="retryAdvice" class="org.springframework.integration.handler.advice.RequestHandlerRetryAdvice">
|
||||
<property name="recoveryCallback">
|
||||
<bean class="org.springframework.integration.handler.advice.ErrorMessageSendingRecoverer">
|
||||
<constructor-arg ref="recoveryChannel" />
|
||||
</bean>
|
||||
</property>
|
||||
<property name="retryStateGenerator">
|
||||
<bean class="org.springframework.integration.handler.advice.SpelExpressionRetryStateGenerator">
|
||||
<constructor-arg value="headers['uniqueId']"/>
|
||||
</bean>
|
||||
</property>
|
||||
</bean>
|
||||
|
||||
<int:channel id="recoveryChannel" />
|
||||
|
||||
<int:chain input-channel="recoveryChannel">
|
||||
<int:transformer expression="'permanently failed:' + payload.failedMessage.payload + ' handled by recovery'" />
|
||||
<int-stream:stderr-channel-adapter append-newline="true"/>
|
||||
</int:chain>
|
||||
</beans>
|
||||
|
||||
</beans>
|
||||
@@ -0,0 +1,79 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
|
||||
xmlns="http://www.springframework.org/schema/beans"
|
||||
xmlns:int="http://www.springframework.org/schema/integration"
|
||||
xmlns:int-stream="http://www.springframework.org/schema/integration/stream"
|
||||
xsi:schemaLocation="http://www.springframework.org/schema/integration http://www.springframework.org/schema/integration/spring-integration.xsd
|
||||
http://www.springframework.org/schema/integration/stream http://www.springframework.org/schema/integration/stream/spring-integration-stream-2.2.xsd
|
||||
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
|
||||
|
||||
<int-stream:stdin-channel-adapter channel="inputChannel">
|
||||
<int:poller fixed-delay="1000" error-channel="failedChannel" />
|
||||
</int-stream:stdin-channel-adapter>
|
||||
|
||||
<int:channel id="inputChannel"/>
|
||||
|
||||
<int:header-enricher input-channel="inputChannel" output-channel="toServiceChannel">
|
||||
<int:header name="failingId" expression="headers['id'].toString()" />
|
||||
</int:header-enricher>
|
||||
|
||||
<int:service-activator input-channel="toServiceChannel"
|
||||
ref="conditionalService"
|
||||
method="testRetry">
|
||||
<int:request-handler-advice-chain>
|
||||
<ref bean="retryAdvice" />
|
||||
</int:request-handler-advice-chain>
|
||||
</int:service-activator>
|
||||
|
||||
<int:channel id="failedChannel" />
|
||||
|
||||
<int:chain input-channel="failedChannel">
|
||||
<int:transformer expression="'permanently failed:' + payload.failedMessage.payload" />
|
||||
<int-stream:stderr-channel-adapter append-newline="true"/>
|
||||
</int:chain>
|
||||
|
||||
<bean id="conditionalService" class="org.springframework.integration.samples.advice.ConditionalService" />
|
||||
|
||||
<!-- Default retry advice 3 tries, no backoff, no recovery;
|
||||
final failure will go to poller's error channel -->
|
||||
<beans profile="default">
|
||||
<bean id="retryAdvice" class="org.springframework.integration.handler.advice.RequestHandlerRetryAdvice" />
|
||||
</beans>
|
||||
|
||||
<!-- Retry advice, template with default 3 tries, exponential backoff, no recovery;
|
||||
final failure will go to poller's error channel -->
|
||||
<beans profile="backoff">
|
||||
<bean id="retryAdvice" class="org.springframework.integration.handler.advice.RequestHandlerRetryAdvice">
|
||||
<property name="retryTemplate">
|
||||
<bean class="org.springframework.retry.support.RetryTemplate">
|
||||
<property name="backOffPolicy">
|
||||
<bean class="org.springframework.retry.backoff.ExponentialBackOffPolicy">
|
||||
<property name="initialInterval" value="2000" />
|
||||
<property name="multiplier" value="2" />
|
||||
</bean>
|
||||
</property>
|
||||
</bean>
|
||||
</property>
|
||||
</bean>
|
||||
</beans>
|
||||
|
||||
<!-- Retry advice, template with default 3 tries, no backoff, recovery;
|
||||
final handled by recovery instead of going to the poller's error channel -->
|
||||
<beans profile="recovery">
|
||||
<bean id="retryAdvice" class="org.springframework.integration.handler.advice.RequestHandlerRetryAdvice">
|
||||
<property name="recoveryCallback">
|
||||
<bean class="org.springframework.integration.handler.advice.ErrorMessageSendingRecoverer">
|
||||
<constructor-arg ref="recoveryChannel" />
|
||||
</bean>
|
||||
</property>
|
||||
</bean>
|
||||
|
||||
<int:channel id="recoveryChannel" />
|
||||
|
||||
<int:chain input-channel="recoveryChannel">
|
||||
<int:transformer expression="'permanently failed:' + payload.failedMessage.payload + ' handled by recovery'" />
|
||||
<int-stream:stderr-channel-adapter append-newline="true"/>
|
||||
</int:chain>
|
||||
</beans>
|
||||
|
||||
</beans>
|
||||
48
intermediate/retry-and-more/src/main/resources/log4j.xml
Normal file
48
intermediate/retry-and-more/src/main/resources/log4j.xml
Normal file
@@ -0,0 +1,48 @@
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
|
||||
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
|
||||
|
||||
<!-- Appenders -->
|
||||
<appender name="console" class="org.apache.log4j.ConsoleAppender">
|
||||
<param name="Target" value="System.out" />
|
||||
<layout class="org.apache.log4j.PatternLayout">
|
||||
<param name="ConversionPattern" value="%d{HH:mm:ss.SSS} %-5p [%t][%c] %m%n" />
|
||||
</layout>
|
||||
</appender>
|
||||
|
||||
<!-- Loggers -->
|
||||
<logger name="org.springframework">
|
||||
<level value="warn" />
|
||||
</logger>
|
||||
|
||||
<logger name="org.springframework.integration.endpoint.SourcePollingChannelAdapter">
|
||||
<level value="warn" />
|
||||
</logger>
|
||||
|
||||
<logger name="org.springframework.integration.dispatcher.BroadcastingDispatcher">
|
||||
<level value="warn" />
|
||||
</logger>
|
||||
|
||||
<logger name="org.springframework.integration">
|
||||
<level value="warn" />
|
||||
</logger>
|
||||
|
||||
<logger name="org.springframework.integration.handler.LoggingHandler">
|
||||
<level value="info" />
|
||||
</logger>
|
||||
|
||||
<logger name="org.springframework.integration.samples">
|
||||
<level value="info" />
|
||||
</logger>
|
||||
|
||||
<logger name="org.springframework.retry">
|
||||
<level value="warn" />
|
||||
</logger>
|
||||
|
||||
<!-- Root Logger -->
|
||||
<root>
|
||||
<priority value="warn" />
|
||||
<appender-ref ref="console" />
|
||||
</root>
|
||||
|
||||
</log4j:configuration>
|
||||
Reference in New Issue
Block a user