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Signed-off-by: Yevhen Vydolob <evidolob@codenvy.com>
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83 changes: 83 additions & 0 deletions
83
.../src/main/java/org/eclipse/che/api/languageserver/registry/LanguageServerFileWatcher.java
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| /******************************************************************************* | ||
| * Copyright (c) 2012-2017 Red Hat, Inc. | ||
| * All rights reserved. This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v1.0 | ||
| * which accompanies this distribution, and is available at | ||
| * http://www.eclipse.org/legal/epl-v10.html | ||
| * | ||
| * Contributors: | ||
| * Red Hat, Inc. - initial API and implementation | ||
| *******************************************************************************/ | ||
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| package org.eclipse.che.api.languageserver.registry; | ||
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| import com.google.common.annotations.VisibleForTesting; | ||
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| import org.eclipse.che.api.languageserver.launcher.LanguageServerLauncher; | ||
| import org.eclipse.che.api.vfs.watcher.FileWatcherManager; | ||
| import org.eclipse.lsp4j.DidChangeWatchedFilesParams; | ||
| import org.eclipse.lsp4j.FileChangeType; | ||
| import org.eclipse.lsp4j.FileEvent; | ||
| import org.eclipse.lsp4j.ServerCapabilities; | ||
| import org.eclipse.lsp4j.services.LanguageServer; | ||
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| import javax.annotation.PreDestroy; | ||
| import javax.inject.Inject; | ||
| import javax.inject.Singleton; | ||
| import java.nio.file.FileSystem; | ||
| import java.nio.file.FileSystems; | ||
| import java.nio.file.PathMatcher; | ||
| import java.util.Collections; | ||
| import java.util.concurrent.CopyOnWriteArrayList; | ||
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| import static org.eclipse.che.api.languageserver.service.LanguageServiceUtils.prefixURI; | ||
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| /** | ||
| * Implement <a href="https://github.com/Microsoft/language-server-protocol/blob/master/protocol.md#workspace_didChangeWatchedFiles">DidChangeWatchedFiles | ||
| * Notification</a> | ||
| */ | ||
| @Singleton | ||
| public class LanguageServerFileWatcher { | ||
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| private final FileWatcherManager watcherManager; | ||
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| private CopyOnWriteArrayList<Integer> watcherIds = new CopyOnWriteArrayList<>(); | ||
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| @Inject | ||
| public LanguageServerFileWatcher(FileWatcherManager watcherManager, ServerInitializer serverInitializer) { | ||
| this.watcherManager = watcherManager; | ||
| serverInitializer.addObserver(this::onServerInitialized); | ||
| } | ||
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| private void send(LanguageServer server, String filePath, FileChangeType changeType) { | ||
| DidChangeWatchedFilesParams params = | ||
| new DidChangeWatchedFilesParams(Collections.singletonList(new FileEvent(prefixURI(filePath), changeType))); | ||
| server.getWorkspaceService().didChangeWatchedFiles(params); | ||
| } | ||
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| @PreDestroy | ||
| @VisibleForTesting | ||
| public void removeAllWatchers() { | ||
| for (Integer watcherId : watcherIds) { | ||
| watcherManager.unRegisterByMatcher(watcherId); | ||
| } | ||
| } | ||
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| private void onServerInitialized(LanguageServerLauncher launcher, | ||
| LanguageServer server, | ||
| ServerCapabilities capabilities, | ||
| String projectPath) { | ||
| LanguageServerDescription description = launcher.getDescription(); | ||
| FileSystem fileSystem = FileSystems.getDefault(); | ||
| for (String pattern : description.getFileWatchPatterns()) { | ||
| PathMatcher matcher = fileSystem.getPathMatcher(pattern); | ||
| int watcherId = watcherManager.registerByMatcher(matcher, | ||
| s -> send(server, s, FileChangeType.Created), | ||
| s -> send(server, s, FileChangeType.Changed), | ||
| s -> send(server, s, FileChangeType.Deleted)); | ||
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| watcherIds.add(watcherId); | ||
| } | ||
| } | ||
| } |
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117 changes: 117 additions & 0 deletions
117
...erver/src/test/java/org/eclipse/che/api/languageserver/LanguageServerFileWatcherTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| /******************************************************************************* | ||
| * Copyright (c) 2012-2017 Red Hat, Inc. | ||
| * All rights reserved. This program and the accompanying materials | ||
| * are made available under the terms of the Eclipse Public License v1.0 | ||
| * which accompanies this distribution, and is available at | ||
| * http://www.eclipse.org/legal/epl-v10.html | ||
| * | ||
| * Contributors: | ||
| * Red Hat, Inc. - initial API and implementation | ||
| *******************************************************************************/ | ||
|
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| package org.eclipse.che.api.languageserver; | ||
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| import org.eclipse.che.api.languageserver.launcher.LanguageServerLauncher; | ||
| import org.eclipse.che.api.languageserver.registry.LanguageServerDescription; | ||
| import org.eclipse.che.api.languageserver.registry.LanguageServerFileWatcher; | ||
| import org.eclipse.che.api.languageserver.registry.ServerInitializer; | ||
| import org.eclipse.che.api.languageserver.registry.ServerInitializerObserver; | ||
| import org.eclipse.che.api.vfs.watcher.FileWatcherManager; | ||
| import org.eclipse.lsp4j.services.LanguageServer; | ||
| import org.eclipse.lsp4j.services.WorkspaceService; | ||
| import org.mockito.ArgumentCaptor; | ||
| import org.mockito.Captor; | ||
| import org.mockito.Mock; | ||
| import org.mockito.testng.MockitoTestNGListener; | ||
| import org.testng.annotations.AfterMethod; | ||
| import org.testng.annotations.Listeners; | ||
| import org.testng.annotations.Test; | ||
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| import java.io.File; | ||
| import java.nio.file.PathMatcher; | ||
| import java.util.Collections; | ||
| import java.util.function.Consumer; | ||
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| import static org.mockito.Mockito.any; | ||
| import static org.mockito.Mockito.mock; | ||
| import static org.mockito.Mockito.verify; | ||
| import static org.mockito.Mockito.when; | ||
| import static org.testng.Assert.assertTrue; | ||
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| /** | ||
| * | ||
| */ | ||
| @Listeners(MockitoTestNGListener.class) | ||
| public class LanguageServerFileWatcherTest { | ||
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| @Mock | ||
| private LanguageServerLauncher launcher; | ||
| @Mock | ||
| private LanguageServer server; | ||
| @Mock | ||
| private FileWatcherManager watcherManager; | ||
| @Mock | ||
| private ServerInitializer initializer; | ||
| @Captor | ||
| private ArgumentCaptor<Consumer<String>> changedCaptor; | ||
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| private LanguageServerFileWatcher watcher; | ||
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| @AfterMethod | ||
| public void tearDown() throws Exception { | ||
| if (watcher != null) { | ||
| watcher.removeAllWatchers(); | ||
| } | ||
| } | ||
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| @Test | ||
| public void testShouldAddObserver() throws Exception { | ||
| watcher = new LanguageServerFileWatcher(watcherManager, initializer); | ||
| verify(initializer).addObserver(any()); | ||
| } | ||
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| @Test | ||
| public void testRegisterFileWatcher() throws Exception { | ||
| ArgumentCaptor<ServerInitializerObserver> argumentCaptor = ArgumentCaptor.forClass(ServerInitializerObserver.class); | ||
| watcher = new LanguageServerFileWatcher(watcherManager, initializer); | ||
| verify(initializer).addObserver(argumentCaptor.capture()); | ||
| ServerInitializerObserver value = argumentCaptor.getValue(); | ||
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| LanguageServerDescription description = | ||
| new LanguageServerDescription("foo", Collections.singletonList("bar"), Collections.emptyList(), | ||
| Collections.singletonList("glob:*.foo")); | ||
| when(launcher.getDescription()).thenReturn(description); | ||
| value.onServerInitialized(launcher, server, null, null); | ||
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| ArgumentCaptor<PathMatcher> pathMatcherCaptor = ArgumentCaptor.forClass(PathMatcher.class); | ||
| verify(watcherManager).registerByMatcher(pathMatcherCaptor.capture(), any(), any(), any()); | ||
| assertTrue(pathMatcherCaptor.getValue().matches(new File("bar.foo").toPath())); | ||
| } | ||
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| @Test | ||
| public void testSendNotification() throws Exception { | ||
| ArgumentCaptor<ServerInitializerObserver> argumentCaptor = ArgumentCaptor.forClass(ServerInitializerObserver.class); | ||
| watcher = new LanguageServerFileWatcher(watcherManager, initializer); | ||
| verify(initializer).addObserver(argumentCaptor.capture()); | ||
| ServerInitializerObserver value = argumentCaptor.getValue(); | ||
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| LanguageServerDescription description = | ||
| new LanguageServerDescription("foo", Collections.singletonList("bar"), Collections.emptyList(), | ||
| Collections.singletonList("glob:*.foo")); | ||
| when(launcher.getDescription()).thenReturn(description); | ||
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| WorkspaceService workspaceService = mock(WorkspaceService.class); | ||
| when(server.getWorkspaceService()).thenReturn(workspaceService); | ||
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| value.onServerInitialized(launcher, server, null, null); | ||
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| verify(watcherManager).registerByMatcher(any(), any(), changedCaptor.capture(), any()); | ||
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| changedCaptor.getValue().accept("/p/bar.foo"); | ||
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| verify(workspaceService).didChangeWatchedFiles(any()); | ||
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| } | ||
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| } |