org.netbeans.modules.java.debug.ElementNode Maven / Gradle / Ivy
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* 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.java.debug;
import com.sun.source.tree.Tree;
import com.sun.tools.javac.code.Symbol.ClassSymbol;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.List;
import javax.lang.model.element.Element;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.element.ModuleElement;
import javax.lang.model.element.PackageElement;
import javax.lang.model.element.TypeElement;
import javax.lang.model.element.TypeParameterElement;
import javax.lang.model.element.VariableElement;
import javax.lang.model.util.ElementScanner9;
import javax.tools.JavaFileObject;
import org.netbeans.api.java.source.CompilationController;
import org.netbeans.api.java.source.CompilationInfo;
import org.netbeans.api.java.source.JavaSource;
import org.netbeans.api.java.source.Task;
import org.openide.nodes.AbstractNode;
import org.openide.nodes.Children;
import org.openide.nodes.Node;
import org.openide.nodes.PropertySupport.ReadOnly;
import org.openide.nodes.Sheet;
import org.openide.util.Exceptions;
/**
*
* @author Jan Lahoda
*/
public class ElementNode extends AbstractNode implements OffsetProvider {
private Element element;
private CompilationInfo info;
// public static Node getTree(CompilationInfo info) {
// return getTree(info, info.getElement(info.getTree().getTypeDecls().get(0)));
// }
public static Node getTree(CompilationInfo info, Element element) {
List result = new ArrayList();
new FindChildrenElementVisitor(info).scan(element, result);
return result.get(0);
}
/** Creates a new instance of TreeNode */
public ElementNode(CompilationInfo info, Element element, List nodes) {
super(nodes.isEmpty() ? Children.LEAF: new NodeChilren(nodes));
this.element = element;
this.info = info;
setDisplayName(element.getKind().toString() + ":" + element.toString()); //NOI18N
setIconBaseWithExtension("org/netbeans/modules/java/debug/resources/element.png"); //NOI18N
}
public int getStart() {
final int[] result = new int[] {-1};
try {
JavaSource.create(info.getClasspathInfo()).runUserActionTask(new Task() {
public void run(CompilationController parameter) throws Exception {
Tree tree = info.getTrees().getTree(element);
if (tree != null) {
result[0] = (int) info.getTrees().getSourcePositions().getStartPosition(info.getCompilationUnit(), tree);
}
}
}, true);
} catch (IOException ex) {
Exceptions.printStackTrace(ex);
}
return result[0];
}
public int getEnd() {
final int[] result = new int[] {-1};
try {
JavaSource.create(info.getClasspathInfo()).runUserActionTask(new Task() {
public void run(CompilationController parameter) throws Exception {
Tree tree = info.getTrees().getTree(element);
if (tree != null) {
result[0] = (int) info.getTrees().getSourcePositions().getEndPosition(info.getCompilationUnit(), tree);
}
}
}, true);
} catch (IOException ex) {
Exceptions.printStackTrace(ex);
}
return result[0];
}
public int getPreferredPosition() {
return -1;
}
@Override
protected Sheet createSheet() {
Sheet sheet = super.createSheet();
Sheet.Set ps = new Sheet.Set();
ps.setName("origins"); // NOI18N
ps.setDisplayName("Origins");
ps.setShortDescription("Origins");
ps.put(new Node.Property[] {
new ReadOnly("sourcefile", String.class, "sourcefile", "sourcefile") {
@Override
public String getValue() throws IllegalAccessException, InvocationTargetException {
if (element instanceof ClassSymbol) {
JavaFileObject file = ((ClassSymbol) element).sourcefile;
if (file != null) {
return file.toUri().toString();
} else {
return "No sourcefile set";
}
} else {
return "Not a ClassSymbol";
}
}
},
new ReadOnly("classfile", String.class, "classfile", "classfile") {
@Override
public String getValue() throws IllegalAccessException, InvocationTargetException {
if (element instanceof ClassSymbol) {
JavaFileObject file = ((ClassSymbol) element).classfile;
if (file != null) {
return file.toUri().toString();
} else {
return "No classfile set";
}
} else {
return "Not a ClassSymbol";
}
}
}
});
sheet.put(ps);
return sheet;
}
private static final class NodeChilren extends Children.Keys {
public NodeChilren(List nodes) {
setKeys(nodes);
}
protected Node[] createNodes(Node key) {
return new Node[] {key};
}
}
private static class FindChildrenElementVisitor extends ElementScanner9> {
private CompilationInfo info;
public FindChildrenElementVisitor(CompilationInfo info) {
this.info = info;
}
public Void visitPackage(PackageElement e, List p) {
List below = new ArrayList();
super.visitPackage(e, below);
p.add(new ElementNode(info, e, below));
return null;
}
public Void visitType(TypeElement e, List p) {
List below = new ArrayList();
super.visitType(e, below);
p.add(new ElementNode(info, e, below));
return null;
}
public Void visitVariable(VariableElement e, List p) {
List below = new ArrayList();
super.visitVariable(e, below);
p.add(new ElementNode(info, e, below));
return null;
}
public Void visitExecutable(ExecutableElement e, List p) {
List below = new ArrayList();
super.visitExecutable(e, below);
p.add(new ElementNode(info, e, below));
return null;
}
public Void visitTypeParameter(TypeParameterElement e, List p) {
List below = new ArrayList();
super.visitTypeParameter(e, below);
p.add(new ElementNode(info, e, below));
return null;
}
@Override
public Void visitModule(ModuleElement e, List p) {
List below = new ArrayList();
super.visitModule(e, below);
p.add(new ElementNode(info, e, below));
return null;
}
@Override
public Void visitUnknown(Element e, List p) {
List below = new ArrayList();
p.add(new ElementNode(info, e, below));
return null;
}
}
}