diff --git a/vscode-extensions/commons/commons-language-server/src/main/java/org/springframework/ide/vscode/commons/languageserver/util/ReferencesHandler.java b/vscode-extensions/commons/commons-language-server/src/main/java/org/springframework/ide/vscode/commons/languageserver/util/ReferencesHandler.java new file mode 100644 index 000000000..da0f0ef60 --- /dev/null +++ b/vscode-extensions/commons/commons-language-server/src/main/java/org/springframework/ide/vscode/commons/languageserver/util/ReferencesHandler.java @@ -0,0 +1,24 @@ +/******************************************************************************* + * Copyright (c) 2017 Pivotal, 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: + * Pivotal, Inc. - initial API and implementation + *******************************************************************************/ +package org.springframework.ide.vscode.commons.languageserver.util; + +import java.util.List; +import java.util.concurrent.CompletableFuture; + +import org.eclipse.lsp4j.Location; +import org.eclipse.lsp4j.ReferenceParams; + +@FunctionalInterface +public interface ReferencesHandler { + + CompletableFuture> handle(ReferenceParams params); + +} diff --git a/vscode-extensions/commons/commons-language-server/src/main/java/org/springframework/ide/vscode/commons/languageserver/util/SimpleTextDocumentService.java b/vscode-extensions/commons/commons-language-server/src/main/java/org/springframework/ide/vscode/commons/languageserver/util/SimpleTextDocumentService.java index 52b287815..a6d0363e4 100644 --- a/vscode-extensions/commons/commons-language-server/src/main/java/org/springframework/ide/vscode/commons/languageserver/util/SimpleTextDocumentService.java +++ b/vscode-extensions/commons/commons-language-server/src/main/java/org/springframework/ide/vscode/commons/languageserver/util/SimpleTextDocumentService.java @@ -74,6 +74,7 @@ public class SimpleTextDocumentService implements TextDocumentService { private HoverHandler hoverHandler = null; private DefinitionHandler definitionHandler; + private ReferencesHandler referencesHandler; public SimpleTextDocumentService(SimpleLanguageServer server) { this.server = server; @@ -99,6 +100,11 @@ public class SimpleTextDocumentService implements TextDocumentService { this.definitionHandler = h; } + public synchronized void onRefeences(ReferencesHandler h) { + Assert.isNull("A references handler is already set, multiple handlers not supported yet", referencesHandler); + this.referencesHandler = h; + } + /** * Gets all documents this service is tracking, generally these are the documents that have been opened / changed, * and not yet closed. @@ -204,8 +210,8 @@ public class SimpleTextDocumentService implements TextDocumentService { } public final static CompletionList NO_COMPLETIONS = new CompletionList(false, Collections.emptyList()); - public final static CompletableFuture NO_HOVER = CompletableFuture.completedFuture(new Hover(ImmutableList.of(), null)); + public final static CompletableFuture> NO_REFERENCES = CompletableFuture.completedFuture(ImmutableList.of()); @Override public CompletableFuture, CompletionList>> completion(TextDocumentPositionParams position) { @@ -253,6 +259,10 @@ public class SimpleTextDocumentService implements TextDocumentService { @Override public CompletableFuture> references(ReferenceParams params) { + ReferencesHandler h = this.referencesHandler; + if (h != null) { + return h.handle(params); + } return CompletableFuture.completedFuture(Collections.emptyList()); }