implemented simple content-assist contributor for JDT that connects to an LS
This commit is contained in:
Martin Lippert
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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
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<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
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<classpathentry kind="src" path="src"/>
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<classpathentry kind="output" path="bin"/>
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</classpath>
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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>org.springframework.boot.ide.java.servers</name>
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<comment></comment>
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<projects>
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</projects>
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<buildSpec>
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<buildCommand>
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<name>org.eclipse.jdt.core.javabuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>org.eclipse.pde.ManifestBuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>org.eclipse.pde.SchemaBuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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</buildSpec>
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<natures>
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<nature>org.eclipse.pde.PluginNature</nature>
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<nature>org.eclipse.jdt.core.javanature</nature>
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</natures>
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</projectDescription>
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@@ -0,0 +1,7 @@
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eclipse.preferences.version=1
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org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
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org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
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org.eclipse.jdt.core.compiler.compliance=1.8
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org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
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org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
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org.eclipse.jdt.core.compiler.source=1.8
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@@ -0,0 +1,21 @@
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Manifest-Version: 1.0
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Bundle-ManifestVersion: 2
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Bundle-Name: Servers
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Bundle-SymbolicName: org.springframework.boot.ide.java.servers;singleton:=true
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Bundle-Version: 4.0.0.qualifier
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Bundle-RequiredExecutionEnvironment: JavaSE-1.8
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Require-Bundle: org.eclipse.jdt.launching;bundle-version="3.9.0",
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org.eclipse.core.runtime;bundle-version="3.12.0",
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org.eclipse.lsp4e;bundle-version="0.1.0",
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org.eclipse.ui.genericeditor;bundle-version="1.0.0",
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org.eclipse.jface.text;bundle-version="3.11.100",
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org.eclipse.jdt.ui;bundle-version="3.13.0",
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org.eclipse.lsp4j,
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org.eclipse.ui.workbench,
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org.eclipse.jface,
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org.eclipse.xtext.xbase.lib
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Import-Package: com.google.gson;version="2.7.0",
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org.eclipse.jface.preference,
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org.eclipse.lsp4j.jsonrpc.messages;version="0.1.0.v20170117-0759",
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org.eclipse.lsp4j.services;version="0.1.0.v20170117-0759",
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org.osgi.framework
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@@ -0,0 +1,6 @@
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source.. = src/
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output.. = bin/
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bin.includes = META-INF/,\
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.,\
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plugin.xml,\
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servers/
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<?xml version="1.0" encoding="UTF-8"?>
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<?eclipse version="3.4"?>
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<plugin>
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<extension
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point="org.eclipse.lsp4e.languageServer">
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<server
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class="org.springframework.boot.ide.java.servers.SpringBootJavaLanguageServer"
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id="org.eclipse.languageserver.languages.springbootjava"
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label="Spring Boot Java Language Server">
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</server>
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<contentTypeMapping
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contentType="org.eclipse.jdt.core.javaSource"
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id="org.eclipse.languageserver.languages.springbootjava">
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</contentTypeMapping>
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</extension>
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<extension
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id="springbootjava-completion-computer"
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point="org.eclipse.jdt.ui.javaCompletionProposalComputer">
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<javaCompletionProposalComputer
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activate="true"
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categoryId="org.eclipse.jdt.ui.defaultProposalCategory"
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class="org.springframework.boot.ide.java.servers.SpringBootJavaCompletionProposalComputer"
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needsSortingAfterFiltering="false">
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</javaCompletionProposalComputer>
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</extension>
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</plugin>
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@@ -0,0 +1,56 @@
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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"
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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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<parent>
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<groupId>org.springframework.boot.ide</groupId>
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<artifactId>org.springframework.boot.ide.servers</artifactId>
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<version>4.0.0-SNAPSHOT</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<artifactId>org.springframework.boot.ide.java.servers</artifactId>
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<packaging>eclipse-plugin</packaging>
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<dependencies>
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<dependency>
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<groupId>org.springframework.ide.vscode</groupId>
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<artifactId>vscode-boot-java</artifactId>
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<version>0.0.1-SNAPSHOT</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-dependency-plugin</artifactId>
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<version>2.10</version>
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<executions>
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<execution>
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<id>copy</id>
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<phase>prepare-package</phase>
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<goals>
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<goal>copy</goal>
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</goals>
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<configuration>
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<artifactItems>
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<artifactItem>
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<groupId>org.springframework.ide.vscode</groupId>
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<artifactId>vscode-boot-java</artifactId>
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<overWrite>true</overWrite>
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<outputDirectory>${project.build.directory}/../servers</outputDirectory>
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</artifactItem>
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</artifactItems>
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<overWriteReleases>true</overWriteReleases>
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<overWriteSnapshots>true</overWriteSnapshots>
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</configuration>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</project>
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@@ -0,0 +1,20 @@
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/*******************************************************************************
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* Copyright (c) 2017 Pivotal, Inc.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* Pivotal, Inc. - initial API and implementation
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*******************************************************************************/
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package org.springframework.boot.ide.java.servers;
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/**
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* @author Martin Lippert
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*/
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public class Constants {
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public static final String PLUGIN_ID = "org.springframework.boot.ide.java.servers";
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}
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@@ -0,0 +1,64 @@
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/*******************************************************************************
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* Copyright (c) 2017 Pivotal, Inc.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* Pivotal, Inc. - initial API and implementation
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*******************************************************************************/
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package org.springframework.boot.ide.java.servers;
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import java.util.Arrays;
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import java.util.List;
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import org.eclipse.core.runtime.IProgressMonitor;
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import org.eclipse.jdt.ui.text.java.ContentAssistInvocationContext;
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import org.eclipse.jdt.ui.text.java.IJavaCompletionProposalComputer;
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import org.eclipse.jface.text.contentassist.ICompletionProposal;
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import org.eclipse.jface.text.contentassist.IContextInformation;
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import org.eclipse.lsp4e.operations.completion.LSContentAssistProcessor;
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/**
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* @author Martin Lippert
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*/
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@SuppressWarnings("restriction")
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public class SpringBootJavaCompletionProposalComputer implements IJavaCompletionProposalComputer {
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private LSContentAssistProcessor lsContentAssistProcessor;
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public SpringBootJavaCompletionProposalComputer() {
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lsContentAssistProcessor = new LSContentAssistProcessor();
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}
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@Override
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public void sessionStarted() {
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}
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@Override
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public List<ICompletionProposal> computeCompletionProposals(ContentAssistInvocationContext context,
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IProgressMonitor monitor) {
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System.out.println("Spring Boot Java Completion Proposal - compute completion proposals");
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ICompletionProposal[] proposals = lsContentAssistProcessor.computeCompletionProposals(context.getViewer(), context.getInvocationOffset());
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return Arrays.asList(proposals);
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}
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@Override
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public List<IContextInformation> computeContextInformation(ContentAssistInvocationContext context,
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IProgressMonitor monitor) {
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IContextInformation[] contextInformation = lsContentAssistProcessor.computeContextInformation(context.getViewer(), context.getInvocationOffset());
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return Arrays.asList(contextInformation);
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}
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@Override
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public String getErrorMessage() {
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return lsContentAssistProcessor.getErrorMessage();
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}
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@Override
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public void sessionEnded() {
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}
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}
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@@ -0,0 +1,126 @@
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/*******************************************************************************
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* Copyright (c) 2017 Pivotal, Inc.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* Pivotal, Inc. - initial API and implementation
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*******************************************************************************/
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package org.springframework.boot.ide.java.servers;
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import java.io.File;
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import java.io.InputStream;
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import java.nio.file.Files;
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import java.nio.file.StandardCopyOption;
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import java.util.ArrayList;
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import java.util.List;
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import org.eclipse.core.runtime.FileLocator;
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import org.eclipse.core.runtime.Path;
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import org.eclipse.core.runtime.Platform;
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import org.eclipse.jdt.internal.launching.StandardVMType;
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import org.eclipse.jdt.launching.IVMInstall;
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import org.eclipse.jdt.launching.JavaRuntime;
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import org.eclipse.jface.action.IStatusLineManager;
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import org.eclipse.lsp4e.server.ProcessStreamConnectionProvider;
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import org.eclipse.lsp4j.jsonrpc.messages.Message;
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import org.eclipse.lsp4j.jsonrpc.messages.NotificationMessage;
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import org.eclipse.lsp4j.services.LanguageServer;
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import org.eclipse.ui.PlatformUI;
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import org.osgi.framework.Bundle;
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import com.google.gson.JsonObject;
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/**
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* @author Martin Lippert
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*/
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@SuppressWarnings("restriction")
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public class SpringBootJavaLanguageServer extends ProcessStreamConnectionProvider {
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public SpringBootJavaLanguageServer() {
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List<String> commands = new ArrayList<>();
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commands.add(getJDKLocation());
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commands.add("-Xdebug");
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commands.add("-Xrunjdwp:server=y,transport=dt_socket,address=4000,suspend=n");
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commands.add("-jar");
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commands.add(getLanguageServerJARLocation());
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String workingDir = getWorkingDirLocation();
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setCommands(commands);
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setWorkingDirectory(workingDir);
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}
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public void handleMessage(Message message, LanguageServer languageServer, String rootPath) {
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if (message instanceof NotificationMessage) {
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NotificationMessage notificationMessage = (NotificationMessage) message;
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if ("sts/progress".equals(notificationMessage.getMethod())) {
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JsonObject params = (JsonObject) notificationMessage.getParams();
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String status = params.has("statusMsg") ? params.get("statusMsg").getAsString() : "";
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showStatusMessage(status);
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}
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}
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}
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private void showStatusMessage(final String status) {
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PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() {
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@Override
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public void run() {
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IStatusLineManager statusLineManager = getStatusLineManager();
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if (statusLineManager != null) {
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statusLineManager.setMessage(status);
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}
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}
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});
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}
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private IStatusLineManager getStatusLineManager() {
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try {
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return PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActiveEditor().getEditorSite().getActionBars().getStatusLineManager();
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}
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catch (NullPointerException e) {
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return null;
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}
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}
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protected String getJDKLocation() {
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IVMInstall jdk = JavaRuntime.getDefaultVMInstall();
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File javaExecutable = StandardVMType.findJavaExecutable(jdk.getInstallLocation());
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return javaExecutable.getAbsolutePath();
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}
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protected String getLanguageServerJARLocation() {
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String languageServer = "vscode-boot-java-0.0.1-SNAPSHOT.jar";
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Bundle bundle = Platform.getBundle(Constants.PLUGIN_ID);
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File dataFile = bundle.getDataFile(languageServer);
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// if (!dataFile.exists()) {
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try {
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copyLanguageServerJAR(languageServer);
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}
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catch (Exception e) {
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e.printStackTrace();
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}
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// }
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return dataFile.getAbsolutePath();
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}
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protected String getWorkingDirLocation() {
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// TODO: identify a reasonable working directory for the language server process
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return System.getProperty("user.dir");
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}
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protected void copyLanguageServerJAR(String languageServerJarName) throws Exception {
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Bundle bundle = Platform.getBundle(Constants.PLUGIN_ID);
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InputStream stream = FileLocator.openStream( bundle, new Path("servers/" + languageServerJarName), false );
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File dataFile = bundle.getDataFile(languageServerJarName);
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Files.copy(stream, dataFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
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}
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}
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Reference in New Issue
Block a user