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yaohaizhandxu
yaohaizh
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andxu
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Add debug execute command handler. (scalacenter#9)
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4 files changed

+192
-3
lines changed

4 files changed

+192
-3
lines changed

‎com.microsoft.java.debug.plugin/plugin.xml‎

Lines changed: 6 additions & 2 deletions
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@@ -1,7 +1,11 @@
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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.m2e.core.lifecycleMappingMetadataSource">
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<extension point="org.eclipse.jdt.ls.core.delegateCommandHandler">
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<delegateCommandHandler class="org.eclipse.jdt.ls.core.internal.DebugDelegateCommandHandlerFactory">
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<command id="vscode.java.startDebugSession"/>
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<command id="vscode.java.resolveClasspath"/>
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<command id="vscode.java.buildWorkspace"/>
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</delegateCommandHandler>
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</extension>
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</plugin>

‎com.microsoft.java.debug.plugin/src/main/java/com/microsoft/java/debug/plugin/internal/DebugServerFactory.java‎

Lines changed: 1 addition & 1 deletion
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@@ -18,7 +18,7 @@ public class DebugServerFactory implements IExecutableExtensionFactory {
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@Override
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public Object create() throws CoreException {
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return JavaDebugServer.getInstance();
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return JavaDebugDelegateCommandHandler.getInstance();
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}
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}

‎com.microsoft.java.debug.plugin/src/main/java/com/microsoft/java/debug/plugin/internal/JavaDebugDelegateCommandHandler.java‎

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package com.microsoft.java.debug.plugin.internal;
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import java.util.List;
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import org.eclipse.jdt.ls.core.internal.IDelegateCommandHandler;
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public class JavaDebugDelegateCommandHandler implements IDelegateCommandHandler {
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public static String DEBUG_STARTSESSION = "vscode.java.startDebugSession";
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public static String RESOLVE_CLASSPATH = "vscode.java.resolveClasspath";
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public static String BUILD_WORKSPACE = "vscode.java.buildWorkspace";
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@Override
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public Object executeCommand(String commandId, List<Object> arguments) {
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if (DEBUG_STARTSESSION.equals(commandId)) {
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} else if (RESOLVE_CLASSPATH.equals(commandId)) {
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ResolveClasspathsHandler handler = new ResolveClasspathsHandler();
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return handler.resolveClasspaths(arguments);
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} else if (BUILD_WORKSPACE.equals(commandId)) {
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}
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return null;
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}
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public static JavaDebugDelegateCommandHandler getInstance() {
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return new JavaDebugDelegateCommandHandler();
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}
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}
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‎com.microsoft.java.debug.plugin/src/main/java/com/microsoft/java/debug/plugin/internal/ResolveClasspathsHandler.java‎

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/*******************************************************************************
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* Copyright (c) 2017 Red Hat Inc. and others.
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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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* Microsoft Corporation - initial API and implementation
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*******************************************************************************/
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package com.microsoft.java.debug.plugin.internal;
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import static org.eclipse.jdt.ls.core.internal.JavaLanguageServerPlugin.logException;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.concurrent.CompletableFuture;
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import org.eclipse.core.resources.IProject;
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import org.eclipse.core.resources.IWorkspaceRoot;
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import org.eclipse.core.resources.ResourcesPlugin;
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import org.eclipse.core.runtime.CoreException;
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import org.eclipse.core.runtime.IStatus;
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import org.eclipse.core.runtime.Status;
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import org.eclipse.jdt.core.IJavaElement;
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import org.eclipse.jdt.core.IJavaProject;
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import org.eclipse.jdt.core.JavaCore;
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import org.eclipse.jdt.core.search.IJavaSearchConstants;
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import org.eclipse.jdt.core.search.IJavaSearchScope;
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import org.eclipse.jdt.core.search.SearchEngine;
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import org.eclipse.jdt.core.search.SearchMatch;
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import org.eclipse.jdt.core.search.SearchParticipant;
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import org.eclipse.jdt.core.search.SearchPattern;
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import org.eclipse.jdt.core.search.SearchRequestor;
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import org.eclipse.jdt.launching.JavaRuntime;
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import org.eclipse.jdt.ls.core.internal.JavaLanguageServerPlugin;
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public class ResolveClasspathsHandler {
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public String[] resolveClasspaths(List<Object> arguments) {
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try {
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return computeClassPath((String)arguments.get(0), (String)arguments.get(1));
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} catch (CoreException e) {
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logException("Failed to resolve classpath.", e);
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}
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return null;
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}
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/**
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* Get java project from name.
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*
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* @param projectName
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* project name
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* @return java project
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* @throws CoreException
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* CoreException
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*/
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private static IJavaProject getJavaProjectFromName(String projectName) throws CoreException {
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IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
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IProject project = root.getProject(projectName);
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if (!project.exists()) {
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throw new CoreException(new Status(IStatus.ERROR, JavaLanguageServerPlugin.PLUGIN_ID,
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String.format("Cannot find the project with name '%s'.", projectName)));
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}
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if (!project.isNatureEnabled("org.eclipse.jdt.core.javanature")) {
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throw new CoreException(new Status(IStatus.ERROR, JavaLanguageServerPlugin.PLUGIN_ID,
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String.format("The project '%s' does not have java nature enabled.", projectName)));
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}
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IJavaProject javaProject = JavaCore.create(project);
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return javaProject;
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}
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/**
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* Get java project from type.
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*
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* @param typeFullyQualifiedName
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* fully qualified name of type
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* @return java project
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* @throws CoreException
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* CoreException
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*/
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private static List<IJavaProject> getJavaProjectFromType(String typeFullyQualifiedName) throws CoreException {
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SearchPattern pattern = SearchPattern.createPattern(typeFullyQualifiedName, IJavaSearchConstants.TYPE,
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IJavaSearchConstants.DECLARATIONS, SearchPattern.R_EXACT_MATCH);
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IJavaSearchScope scope = SearchEngine.createWorkspaceScope();
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ArrayList<IJavaProject> projects = new ArrayList<>();
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SearchRequestor requestor = new SearchRequestor() {
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@Override
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public void acceptSearchMatch(SearchMatch match) {
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Object element = match.getElement();
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if (element instanceof IJavaElement) {
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projects.add(((IJavaElement) element).getJavaProject());
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}
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}
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};
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SearchEngine searchEngine = new SearchEngine();
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searchEngine.search(pattern, new SearchParticipant[] { SearchEngine.getDefaultSearchParticipant() }, scope,
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requestor, null /* progress monitor */);
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return projects;
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}
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/**
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* Accord to the project name and the main class, compute runtime classpath.
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*
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* @param projectName
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* project name
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* @param mainClass
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* full qualified class name
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* @return class path
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* @throws CoreException
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* CoreException
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*/
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private static String[] computeClassPath(String projectName, String mainClass) throws CoreException {
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IJavaProject project = null;
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// if type exists in multiple projects, debug configuration need provide
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// project name.
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if (projectName != null) {
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project = getJavaProjectFromName(projectName);
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} else {
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List<IJavaProject> projects = getJavaProjectFromType(mainClass);
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if (projects.size() == 0) {
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throw new CoreException(new Status(IStatus.ERROR, JavaLanguageServerPlugin.PLUGIN_ID,
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String.format("Main class '%s' doesn't exist in the workspace.", mainClass)));
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}
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if (projects.size() > 1) {
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throw new CoreException(new Status(IStatus.ERROR, JavaLanguageServerPlugin.PLUGIN_ID,
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String.format(
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"Main class '%s' isn't unique in the workspace, please pass in specified projectname.",
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mainClass)));
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}
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project = projects.get(0);
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}
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return computeClassPath(project);
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}
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/**
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* Compute runtime classpath of a java project.
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*
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* @param javaProject
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* java project
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* @return class path
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* @throws CoreException
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* CoreException
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*/
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private static String[] computeClassPath(IJavaProject javaProject) throws CoreException {
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if (javaProject == null) {
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throw new IllegalArgumentException("javaProject is null");
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}
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return JavaRuntime.computeDefaultRuntimeClassPath(javaProject);
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}
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}

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