| /******************************************************************************* |
| * Copyright (c) 2004, 2011 Tasktop Technologies and others. |
| * 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: |
| * Tasktop Technologies - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.internal.java.ui; |
| |
| import java.util.List; |
| import java.util.Map; |
| import java.util.WeakHashMap; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.debug.core.ILaunch; |
| import org.eclipse.debug.core.model.IStackFrame; |
| import org.eclipse.debug.core.model.RuntimeProcess; |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.internal.debug.core.JavaDebugUtils; |
| import org.eclipse.jdt.internal.debug.core.model.JDIDebugElement; |
| import org.eclipse.jdt.internal.debug.core.model.JDIStackFrame; |
| import org.eclipse.mylyn.context.core.AbstractContextStructureBridge; |
| import org.eclipse.mylyn.context.core.ContextCore; |
| import org.eclipse.mylyn.context.core.IInteractionElement; |
| |
| /** |
| * @author Mik Kersten |
| */ |
| public class JavaDebugStructureBridge extends AbstractContextStructureBridge { |
| |
| public final static String CONTENT_TYPE = "java/debug"; //$NON-NLS-1$ |
| |
| private final JavaStructureBridge javaStructureBridge = new JavaStructureBridge(); |
| |
| /** |
| * Needed due to slowness in resolving type names. We expect the stack frame elements to disappear, they are never |
| * explicitly removed. TODO: consider clearing on each re-launch |
| */ |
| private final Map<JDIStackFrame, IType> stackFrameMap = new WeakHashMap<JDIStackFrame, IType>(); |
| |
| @Override |
| public boolean acceptsObject(Object object) { |
| return object instanceof ILaunch || object instanceof JDIDebugElement || object instanceof RuntimeProcess; |
| } |
| |
| @Override |
| public boolean canBeLandmark(String handle) { |
| return false; |
| } |
| |
| @Override |
| public boolean canFilter(Object element) { |
| // return element instanceof JDIStackFrame; |
| if (element instanceof JDIStackFrame) { |
| JDIStackFrame stackFrame = (JDIStackFrame) element; |
| try { |
| IStackFrame[] frames = stackFrame.getThread().getStackFrames(); |
| |
| int indexOfInterestingFrame = 0; |
| int indexOfCurrentFrame = 0; |
| for (int i = 0; i < frames.length; i++) { |
| IStackFrame frame = frames[i]; |
| if (stackFrame.getName().equals(frame.getName())) { |
| indexOfCurrentFrame = i; |
| } |
| |
| IInteractionElement correspondingElement = ContextCore.getContextManager().getElement( |
| getHandleIdentifier(frame)); |
| if (correspondingElement != null && correspondingElement.getInterest().isInteresting()) { |
| indexOfInterestingFrame = i; |
| } |
| } |
| return indexOfCurrentFrame > indexOfInterestingFrame; |
| } catch (DebugException e) { |
| return false; |
| } |
| } |
| return element instanceof JDIStackFrame; |
| } |
| |
| @Override |
| public List<String> getChildHandles(String handle) { |
| return null; |
| } |
| |
| @Override |
| public String getContentType() { |
| return CONTENT_TYPE; |
| } |
| |
| @Override |
| public String getContentType(String elementHandle) { |
| return getContentType(); |
| } |
| |
| @Override |
| public String getHandleForOffsetInObject(Object resource, int offset) { |
| return null; |
| } |
| |
| @Override |
| public String getHandleIdentifier(Object object) { |
| if (object instanceof JDIStackFrame) { |
| JDIStackFrame stackFrame = (JDIStackFrame) object; |
| IType type = null; |
| if (stackFrameMap.containsKey(stackFrame)) { |
| type = stackFrameMap.get(stackFrame); |
| } else { |
| try { |
| type = JavaDebugUtils.resolveDeclaringType(stackFrame); |
| stackFrameMap.put(stackFrame, type); |
| } catch (CoreException e) { |
| // ignore |
| } |
| } |
| if (type != null && type.exists()) { |
| return javaStructureBridge.getHandleIdentifier(type); |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public String getLabel(Object object) { |
| return "" + object; //$NON-NLS-1$ |
| } |
| |
| @Override |
| public Object getObjectForHandle(String handle) { |
| return javaStructureBridge.getObjectForHandle(handle); |
| } |
| |
| @Override |
| public String getParentHandle(String handle) { |
| return null; |
| } |
| |
| @Override |
| public boolean isDocument(String handle) { |
| return false; |
| } |
| |
| } |