PT #155266751: Eclipse source links via IntroURL

headless-services/spring-boot-language-server/src/main/java/org/springframework/ide/vscode/boot/java/links/EclipseSourceLinks.java

@@ -0,0 +1,107 @@
+/*******************************************************************************
+ * Copyright (c) 2018 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.boot.java.links;
+
+import java.io.File;
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Optional;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.ide.vscode.commons.java.IJavaProject;
+
+import com.google.common.base.Supplier;
+import com.google.common.base.Suppliers;
+
+/**
+ * Source links for Eclipse client. Eclipse IntroURLs.
+ * 
+ * @author Alex Boyko
+ *
+ */
+public class EclipseSourceLinks implements SourceLinks {
+	
+	private static final String URL_PREFIX = "http://org.eclipse.ui.intro/execute?command=";
+	private static final String EQUALS = "=";
+	private static final String PARAMETERS_SEPARATOR = ",";
+	private static final String PARAMETERS_START = "(";
+	private static final String PARAMETERS_END = ")";
+	
+	private static final String JAVA_TYPE_COMMAND = "org.springframework.tooling.boot.ls.OpenJavaType";
+	private static final String FQ_NAME_PARAMETER_ID = "fqName";
+	private static final String PROJECT_NAME_PARAMETER_ID = "projectName";
+
+	private static final String RESOURCE_COMMAND = "org.springframework.tooling.boot.ls.OpenResourceInEditor";
+	private static final String PATH = "path";
+
+	
+	private static final Supplier<Logger> LOG = Suppliers.memoize(() -> LoggerFactory.getLogger(EclipseSourceLinks.class));
+
+	@Override
+	public Optional<String> sourceLinkUrlForFQName(IJavaProject project, String fqName) {
+		try {
+			StringBuilder paramBuilder = new StringBuilder(JAVA_TYPE_COMMAND);
+			paramBuilder.append(PARAMETERS_START);
+			paramBuilder.append(FQ_NAME_PARAMETER_ID);
+			paramBuilder.append(EQUALS);
+			paramBuilder.append(fqName);
+			if (project != null && project.getElementName() != null) {
+				paramBuilder.append(PARAMETERS_SEPARATOR);
+				paramBuilder.append(PROJECT_NAME_PARAMETER_ID);
+				paramBuilder.append(EQUALS);
+				paramBuilder.append(project.getElementName());
+			}
+			paramBuilder.append(PARAMETERS_END);
+			
+			StringBuilder urlBuilder = new StringBuilder(URL_PREFIX);
+			urlBuilder.append(URLEncoder.encode(paramBuilder.toString(), "UTF8"));
+			return Optional.of(urlBuilder.toString());
+		} catch (UnsupportedEncodingException e) {
+			LOG.get().error("{}", e);
+		}
+		return Optional.empty();
+	}
+
+	@Override
+	public Optional<String> sourceLinkUrlForClasspathResource(IJavaProject project, String path) {
+		int idx = path.lastIndexOf(CLASS);
+		if (idx >= 0) {
+			Path p = Paths.get(path.substring(0, idx));
+			return sourceLinkUrlForFQName(project, p.toString().replace(File.separator, "."));
+		}
+		return Optional.empty();
+	}
+
+	@Override
+	public Optional<String> sourceLinkForResourcePath(Path path) {
+		try {
+			if (path != null) {
+				StringBuilder paramBuilder = new StringBuilder(RESOURCE_COMMAND);
+				paramBuilder.append(PARAMETERS_START);
+				paramBuilder.append(PATH);
+				paramBuilder.append(EQUALS);
+				paramBuilder.append(path);
+				paramBuilder.append(PARAMETERS_END);
+
+				StringBuilder urlBuilder = new StringBuilder(URL_PREFIX);
+				urlBuilder.append(URLEncoder.encode(paramBuilder.toString(), "UTF8"));
+				return Optional.of(urlBuilder.toString());
+			}
+		} catch (UnsupportedEncodingException e) {
+			LOG.get().error("{}", e);
+		}
+		return Optional.empty();
+	}
+
+}

headless-services/spring-boot-language-server/src/main/java/org/springframework/ide/vscode/boot/java/links/SourceLinkFactory.java

@@ -53,6 +53,8 @@ public final class SourceLinkFactory {
 		switch (LspClient.currentClient()) {
 		case VSCODE:
 			return new VSCodeSourceLinks(server);
+		case ECLIPSE:
+			return new EclipseSourceLinks();
 		default:
 			return NO_SOURCE_LINKS;
 		}