JaroslavTulach commented on a change in pull request #1077: [NETBEANS-1793] Gradle Support URL: https://github.com/apache/incubator-netbeans/pull/1077#discussion_r246660674
########## File path: groovy/gradle.java/src/org/netbeans/modules/gradle/java/api/output/LocationOpener.java ########## @@ -0,0 +1,177 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.netbeans.modules.gradle.java.api.output; + +import com.sun.source.tree.CompilationUnitTree; +import com.sun.source.tree.Tree; +import com.sun.source.util.Trees; +import java.io.IOException; +import java.util.List; +import javax.lang.model.element.Element; +import javax.lang.model.element.ElementKind; +import javax.lang.model.element.ExecutableElement; +import javax.lang.model.util.ElementFilter; +import javax.swing.SwingUtilities; +import org.netbeans.api.java.classpath.GlobalPathRegistry; +import org.netbeans.api.java.source.CompilationController; +import org.netbeans.api.java.source.JavaSource; +import org.netbeans.api.java.source.Task; +import org.openide.cookies.LineCookie; +import org.openide.filesystems.FileObject; +import org.openide.loaders.DataObject; +import org.openide.loaders.DataObjectNotFoundException; +import org.openide.text.Line; + +/** + * + * @author Laszlo Kishalmi + */ +public class LocationOpener { + + public static final Location.Finder GLOBAL_FINDER = new Location.Finder() { + + @Override + public FileObject findFileObject(Location loc) { + return GlobalPathRegistry.getDefault().findResource(loc.getFileName()); + } + + }; + final Location location; + final Location.Finder finder; + + public LocationOpener(Location location, Location.Finder finder) { + this.location = location; + this.finder = finder; + } + + public LocationOpener(Location location) { + this(location, GLOBAL_FINDER); + } + + public final void open() { + FileObject fo = finder.findFileObject(location); + if (fo != null) { + if (location.isLine()) { + openAtLine(fo, location.getLineNum()); + } else if (location.isMethod()) { + int l = getMethodLine(fo, location.getTarget()); + openAtLine(fo, l); + } else { + int l = getTargetLine(fo); + openAtLine(fo, l); + } + } + } + + private int getMethodLine(final FileObject fo, final String methodName) { + final int[] line = new int[1]; + JavaSource javaSource = JavaSource.forFileObject(fo); + if (javaSource != null) { + try { + javaSource.runUserActionTask(new Task<CompilationController>() { + @Override + public void run(CompilationController compilationController) throws Exception { + compilationController.toPhase(JavaSource.Phase.ELEMENTS_RESOLVED); + Trees trees = compilationController.getTrees(); + CompilationUnitTree compilationUnitTree = compilationController.getCompilationUnit(); + List<? extends Tree> typeDecls = compilationUnitTree.getTypeDecls(); + for (Tree tree : typeDecls) { + Element element = trees.getElement(trees.getPath(compilationUnitTree, tree)); + if (element != null && element.getKind() == ElementKind.CLASS && element.getSimpleName().contentEquals(fo.getName())) { + List<? extends ExecutableElement> methodElements = ElementFilter.methodsIn(element.getEnclosedElements()); + for (Element child : methodElements) { + if (child.getSimpleName().contentEquals(methodName)) { + long pos = trees.getSourcePositions().getStartPosition(compilationUnitTree, trees.getTree(child)); + line[0] = (int) compilationUnitTree.getLineMap().getLineNumber(pos); + break; + } + } + } + } + } + }, true); + return line[0]; + } catch (IOException ioe) { + //TODO: Do nothing? + } + } + return 1; + } + + private int getTargetLine(final FileObject fo) { + final int[] line = new int[]{0}; + JavaSource javaSource = JavaSource.forFileObject(fo); + if (javaSource != null) { + try { + javaSource.runUserActionTask(new Task<CompilationController>() { + @Override + public void run(CompilationController compilationController) throws Exception { + compilationController.toPhase(JavaSource.Phase.ELEMENTS_RESOLVED); + Trees trees = compilationController.getTrees(); + CompilationUnitTree compilationUnitTree = compilationController.getCompilationUnit(); + List<? extends Tree> typeDecls = compilationUnitTree.getTypeDecls(); + for (Tree tree : typeDecls) { + Element element = trees.getElement(trees.getPath(compilationUnitTree, tree)); + if (element != null && element.getKind() == ElementKind.CLASS && element.getSimpleName().contentEquals(fo.getName())) { + long pos = trees.getSourcePositions().getStartPosition(compilationUnitTree, tree); + line[0] = (int) compilationUnitTree.getLineMap().getLineNumber(pos); + break; + } + } + } + }, true); + return line[0]; + } catch (IOException ioe) { + } + } + return 1; + } + + public static void openAtLine(FileObject file, final int line) { Review comment: Quite general utilities. Shouldn't they be in a completely different API? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected] For further information about the NetBeans mailing lists, visit: https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists
