| /******************************************************************************* |
| * Copyright (c) 2000, 2005 IBM Corporation 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: |
| * Jesper Kamstrup Linnet (eclipse@kamstrup-linnet.dk) - initial API and implementation |
| * (report 36180: Callers/Callees view) |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.ui.callhierarchy; |
| |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.OperationCanceledException; |
| import org.eclipse.core.runtime.jobs.ISchedulingRule; |
| import org.eclipse.jdt.internal.corext.callhierarchy.MethodWrapper; |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| import org.eclipse.ui.progress.IElementCollector; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.ui.progress.IDeferredWorkbenchAdapter; |
| |
| class DeferredMethodWrapper implements IDeferredWorkbenchAdapter { |
| private final CallHierarchyContentProvider fProvider; |
| private MethodWrapper fMethodWrapper; |
| |
| /** |
| * A simple job scheduling rule for serializing jobs that shouldn't be run |
| * concurrently. |
| */ |
| private class BatchSimilarSchedulingRule implements ISchedulingRule { |
| public String id; |
| |
| public BatchSimilarSchedulingRule(String id) { |
| this.id = id; |
| } |
| |
| /* |
| * @see org.eclipse.core.runtime.jobs.ISchedulingRule#isConflicting(org.eclipse.core.runtime.jobs.ISchedulingRule) |
| */ |
| public boolean isConflicting(ISchedulingRule rule) { |
| if (rule instanceof BatchSimilarSchedulingRule) { |
| return ((BatchSimilarSchedulingRule) rule).id.equals(id); |
| } |
| return false; |
| } |
| |
| /* |
| * @see org.eclipse.core.runtime.jobs.ISchedulingRule#contains(org.eclipse.core.runtime.jobs.ISchedulingRule) |
| */ |
| public boolean contains(ISchedulingRule rule) { |
| return this == rule; |
| } |
| } |
| |
| DeferredMethodWrapper(CallHierarchyContentProvider provider, MethodWrapper methodWrapper) { |
| fMethodWrapper = methodWrapper; |
| this.fProvider = provider; |
| } |
| |
| private Object getCalls(IProgressMonitor monitor) { |
| return fMethodWrapper.getCalls(monitor); |
| } |
| |
| private MethodWrapper getMethodWrapper() { |
| return fMethodWrapper; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.progress.IDeferredWorkbenchAdapter#fetchDeferredChildren(java.lang.Object, |
| * org.eclipse.jface.progress.IElementCollector, |
| * org.eclipse.core.runtime.IProgressMonitor) |
| */ |
| public void fetchDeferredChildren(Object object, IElementCollector collector, IProgressMonitor monitor) { |
| try { |
| fProvider.startFetching(); |
| DeferredMethodWrapper methodWrapper = (DeferredMethodWrapper) object; |
| collector.add((Object[]) methodWrapper.getCalls(monitor), monitor); |
| collector.done(); |
| } catch (OperationCanceledException e) { |
| collector.add(new Object[] { TreeTermination.SEARCH_CANCELED }, monitor); |
| } catch (Exception e) { |
| JavaPlugin.log(e); |
| } finally { |
| fProvider.doneFetching(); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.progress.IDeferredWorkbenchAdapter#isContainer() |
| */ |
| public boolean isContainer() { |
| return true; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.progress.IDeferredWorkbenchAdapter#getRule() |
| */ |
| public ISchedulingRule getRule(Object o) { |
| return new BatchSimilarSchedulingRule("org.eclipse.jdt.ui.callhierarchy.methodwrapper"); //$NON-NLS-1$ |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.model.IWorkbenchAdapter#getChildren(java.lang.Object) |
| */ |
| public Object[] getChildren(Object o) { |
| return this.fProvider.fetchChildren(((DeferredMethodWrapper) o).getMethodWrapper()); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.model.IWorkbenchAdapter#getImageDescriptor(java.lang.Object) |
| */ |
| public ImageDescriptor getImageDescriptor(Object object) { |
| return null; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.model.IWorkbenchAdapter#getLabel(java.lang.Object) |
| */ |
| public String getLabel(Object o) { |
| return fMethodWrapper.getMember().getElementName(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.model.IWorkbenchAdapter#getParent(java.lang.Object) |
| */ |
| public Object getParent(Object o) { |
| return fMethodWrapper.getParent(); |
| } |
| |
| /** |
| * Returns an object which is an instance of the given class associated |
| * with this object. Returns <code>null</code> if no such object can be |
| * found. |
| */ |
| public Object getAdapter(Class adapter) { |
| if (adapter == IDeferredWorkbenchAdapter.class) |
| return this; |
| return null; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see java.lang.Object#equals(java.lang.Object) |
| */ |
| public boolean equals(Object obj) { |
| //TODO: not symmetric: doesn't obey contract of Object#equals(Object). |
| //This class should probably be merged into MethodWrapper. |
| return fMethodWrapper.equals(obj); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see java.lang.Object#hashCode() |
| */ |
| public int hashCode() { |
| return fMethodWrapper.hashCode(); |
| } |
| } |