| /******************************************************************************* |
| * Copyright (c) 2008, 2009 Wind River Systems 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: |
| * Wind River Systems - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.debug.examples.ui.pda.views; |
| |
| import org.eclipse.core.expressions.PropertyTester; |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.debug.examples.core.pda.model.PDADebugElement; |
| import org.eclipse.debug.examples.core.pda.model.PDAStackFrame; |
| import org.eclipse.debug.examples.core.pda.model.PDAThread; |
| |
| /** |
| * Property tester for use with standard expressions to determine whether |
| * the given debug target can perform a push operation. |
| */ |
| public class CanPushTester extends PropertyTester { |
| |
| private static final String CAN_PUSH_PROPERTY = "canPush"; |
| |
| public boolean test(Object receiver, String property, Object[] args, Object expectedValue) { |
| if (CAN_PUSH_PROPERTY.equals(property)) { |
| if (receiver instanceof IAdaptable) { |
| PDADebugElement element = (PDADebugElement) |
| ((IAdaptable)receiver).getAdapter(PDADebugElement.class); |
| PDAThread thread = null; |
| if (element instanceof PDAThread) { |
| thread = (PDAThread)element; |
| } else if (element instanceof PDAStackFrame) { |
| thread = (PDAThread)((PDAStackFrame)element).getThread(); |
| } |
| |
| if (thread != null) { |
| return thread.canPushData(); |
| } |
| } |
| } |
| return false; |
| } |
| } |