| /******************************************************************************* |
| * Copyright (c) 2006, 2012 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.debug.ui.threadgroups; |
| |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.core.runtime.jobs.Job; |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.debug.core.DebugPlugin; |
| import org.eclipse.debug.core.ILaunch; |
| import org.eclipse.debug.core.ILaunchManager; |
| import org.eclipse.debug.core.model.IDebugElement; |
| import org.eclipse.debug.core.model.IDebugTarget; |
| import org.eclipse.debug.core.model.IStackFrame; |
| import org.eclipse.debug.core.model.IThread; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IModelDelta; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.ModelDelta; |
| import org.eclipse.debug.internal.ui.viewers.update.DebugEventHandler; |
| import org.eclipse.debug.internal.ui.viewers.update.DebugTargetEventHandler; |
| import org.eclipse.debug.internal.ui.viewers.update.DebugTargetProxy; |
| import org.eclipse.debug.internal.ui.viewers.update.StackFrameEventHandler; |
| import org.eclipse.jdt.debug.core.IJavaDebugTarget; |
| import org.eclipse.jdt.debug.ui.JavaDebugUtils; |
| import org.eclipse.jdt.internal.debug.ui.monitors.JavaElementContentProvider; |
| import org.eclipse.jdt.internal.debug.ui.snippeteditor.ScrapbookLauncher; |
| import org.eclipse.jface.viewers.Viewer; |
| |
| /** |
| * @since 3.2 |
| * |
| */ |
| public class JavaDebugTargetProxy extends DebugTargetProxy { |
| |
| private JavaThreadEventHandler fThreadEventHandler; |
| |
| /** |
| * Whether this proxy is for a scrapbook. |
| */ |
| private boolean fIsScrapbook = false; |
| |
| private IDebugTarget fDebugTarget = null; |
| |
| /** |
| * @param target the backing target |
| */ |
| public JavaDebugTargetProxy(IDebugTarget target) { |
| super(target); |
| fDebugTarget = target; |
| ILaunch launch = target.getLaunch(); |
| if (launch != null) { |
| fIsScrapbook = launch.getAttribute(ScrapbookLauncher.SCRAPBOOK_LAUNCH) != null; |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.internal.ui.viewers.update.DebugTargetProxy#createEventHandlers() |
| */ |
| @Override |
| protected DebugEventHandler[] createEventHandlers() { |
| fThreadEventHandler = new JavaThreadEventHandler(this); |
| return new DebugEventHandler[] { new DebugTargetEventHandler(this), fThreadEventHandler, |
| new StackFrameEventHandler(this, fThreadEventHandler)}; |
| } |
| |
| @Override |
| public void installed(Viewer viewer) { |
| if (fIsScrapbook) { |
| // don't auto expand scrap books |
| return; |
| } |
| final Viewer finalViewer = viewer; |
| // Delay the auto-select-expand job to allow for transient suspend states to resolve. |
| // See bug 225377 |
| Job job = new Job("Initialize Java Debug Session") { //$NON-NLS-1$ |
| @Override |
| protected IStatus run(IProgressMonitor monitor) { |
| if (!isDisposed()) { |
| doInstalled(finalViewer); |
| } |
| return Status.OK_STATUS; |
| } |
| |
| @Override |
| public boolean belongsTo(Object family) { |
| return JavaDebugTargetProxy.this == family; |
| } |
| }; |
| job.setSystem(true); |
| job.schedule(500); |
| fThreadEventHandler.init(viewer); |
| } |
| |
| /** |
| * @param viewer the viewer |
| */ |
| private void doInstalled(Viewer viewer) { |
| // select any thread that is already suspended after installation |
| IDebugTarget target = fDebugTarget; |
| |
| if (target != null) { |
| ModelDelta delta = getNextSuspendedThreadDelta(null, false); |
| if (delta == null) { |
| try { |
| ILaunchManager manager = DebugPlugin.getDefault().getLaunchManager(); |
| ILaunch launch = target.getLaunch(); |
| int launchIndex = indexOf(manager.getLaunches(), target.getLaunch()); |
| int targetIndex = indexOf(target.getLaunch().getChildren(), target); |
| delta = new ModelDelta(manager, IModelDelta.NO_CHANGE); |
| ModelDelta node = delta.addNode(launch, launchIndex, IModelDelta.NO_CHANGE, target.getLaunch().getChildren().length); |
| node = node.addNode(target, targetIndex, IModelDelta.EXPAND | IModelDelta.SELECT, getTargetChildCount(target)); |
| } catch (DebugException e) { |
| // In case of exception do not fire delta |
| return; |
| } |
| } |
| // expand the target if no suspended thread |
| fireModelChanged(delta); |
| } |
| } |
| |
| private int getTargetChildCount(IDebugTarget target) throws DebugException{ |
| if (target instanceof IJavaDebugTarget) { |
| IJavaDebugTarget javaTarget = (IJavaDebugTarget)target; |
| |
| if (JavaElementContentProvider.isDisplayThreadGroups()) { |
| if (javaTarget.isDisconnected() || javaTarget.isTerminated()) { |
| return 0; |
| } |
| return javaTarget.getRootThreadGroups().length; |
| } |
| return javaTarget.getThreads().length; |
| } |
| return 0; |
| } |
| |
| @Override |
| protected int getStackFrameIndex(IStackFrame stackFrame) { |
| int stackFrameIndex = 0; |
| if (((IJavaDebugTarget) fDebugTarget).supportsMonitorInformation()) { |
| IThread thread = stackFrame.getThread(); |
| IDebugElement[] ownedMonitors = JavaDebugUtils.getOwnedMonitors(thread); |
| stackFrameIndex += ownedMonitors.length; |
| IDebugElement contendedMonitor = JavaDebugUtils.getContendedMonitor(thread); |
| if (contendedMonitor != null) { |
| stackFrameIndex++; |
| } |
| } |
| return stackFrameIndex; |
| } |
| } |