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/*******************************************************************************
* Copyright (c) 2011, 2012 Wind River Systems, Inc. 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.tcf.te.tcf.locator.internal;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
import org.eclipse.core.expressions.PropertyTester;
import org.eclipse.core.runtime.Assert;
import org.eclipse.tcf.protocol.IPeer;
import org.eclipse.tcf.protocol.Protocol;
import org.eclipse.tcf.te.tcf.locator.activator.CoreBundleActivator;
import org.eclipse.tcf.te.tcf.locator.interfaces.ITracing;
import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.ILocatorModel;
import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerModel;
import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerModelProperties;
import org.eclipse.tcf.te.tcf.locator.interfaces.services.ILocatorModelPeerNodeQueryService;
import org.eclipse.tcf.te.tcf.locator.nodes.PeerRedirector;
/**
* Locator model property tester.
*/
public class LocatorModelPropertyTester extends PropertyTester {
/* (non-Javadoc)
* @see org.eclipse.core.expressions.IPropertyTester#test(java.lang.Object, java.lang.String, java.lang.Object[], java.lang.Object)
*/
@Override
public boolean test(final Object receiver, final String property, final Object[] args, final Object expectedValue) {
// The receiver is expected to be a peer model node or a peer
if (receiver instanceof IPeerModel || receiver instanceof IPeer) {
final AtomicBoolean result = new AtomicBoolean();
// If we have to test for local or remote services, we have to handle it special
if ("hasLocalService".equals(property) || "hasRemoteService".equals(property)) { //$NON-NLS-1$ //$NON-NLS-2$
// This tests must happen outside the TCF dispatch thread's
if (!Protocol.isDispatchThread()) {
result.set(testServices((IPeerModel) receiver, property, args, expectedValue));
}
}
else {
Runnable runnable = new Runnable() {
@Override
public void run() {
if (receiver instanceof IPeerModel) {
result.set(testPeerModel((IPeerModel) receiver, property, args, expectedValue));
} else {
result.set(testPeer((IPeer) receiver, property, args, expectedValue));
}
}
};
if (Protocol.isDispatchThread()) {
runnable.run();
}
else {
Protocol.invokeAndWait(runnable);
}
}
return result.get();
}
return false;
}
/**
* Test the specific peer model node properties.
*
* @param node The model node. Must not be <code>null</code>.
* @param property The property to test.
* @param args The property arguments.
* @param expectedValue The expected value.
*
* @return <code>True</code> if the property to test has the expected value, <code>false</code>
* otherwise.
*/
protected boolean testPeerModel(IPeerModel node, String property, Object[] args, Object expectedValue) {
Assert.isNotNull(node);
Assert.isTrue(Protocol.isDispatchThread(), "Illegal Thread Access"); //$NON-NLS-1$
return testPeer(node.getPeer(), property, args, expectedValue);
}
/**
* Test the specific peer properties.
*
* @param node The peer. Must not be <code>null</code>.
* @param property The property to test.
* @param args The property arguments.
* @param expectedValue The expected value.
*
* @return <code>True</code> if the property to test has the expected value, <code>false</code>
* otherwise.
*/
protected boolean testPeer(IPeer node, String property, Object[] args, Object expectedValue) {
Assert.isNotNull(node);
Assert.isTrue(Protocol.isDispatchThread(), "Illegal Thread Access"); //$NON-NLS-1$
if ("name".equals(property)) { //$NON-NLS-1$
if (node.getName() != null && node.getName().equals(expectedValue)) {
return true;
}
}
if ("nameRegex".equals(property) && expectedValue instanceof String) { //$NON-NLS-1$
if (node.getName() != null && node.getName().matches((String)expectedValue)) {
return true;
}
}
if ("osName".equals(property)) { //$NON-NLS-1$
if (node.getOSName() != null && node.getOSName().equals(expectedValue)) {
return true;
}
}
if ("osNameRegex".equals(property) && expectedValue instanceof String) { //$NON-NLS-1$
if (node.getOSName() != null && node.getOSName().matches((String)expectedValue)) {
return true;
}
}
if ("isStaticPeer".equals(property)) { //$NON-NLS-1$
String value = node.getAttributes().get("static.transient"); //$NON-NLS-1$
boolean isStaticPeer = value != null && Boolean.parseBoolean(value.trim());
if (expectedValue instanceof Boolean) {
return ((Boolean) expectedValue).booleanValue() == isStaticPeer;
}
}
if ("isRedirected".equals(property)) { //$NON-NLS-1$
boolean isRedirected = node instanceof PeerRedirector;
if (expectedValue instanceof Boolean) {
return ((Boolean) expectedValue).booleanValue() == isRedirected;
}
}
if ("isProxy".equals(property)) { //$NON-NLS-1$
boolean isProxy = node.getAttributes().containsKey("Proxy"); //$NON-NLS-1$
if (expectedValue instanceof Boolean) {
return ((Boolean) expectedValue).booleanValue() == isProxy;
}
}
if ("isValueAdd".equals(property)) { //$NON-NLS-1$
String value = node.getAttributes().get("ValueAdd"); //$NON-NLS-1$
boolean isValueAdd = value != null && ("1".equals(value.trim()) || Boolean.parseBoolean(value.trim())); //$NON-NLS-1$
if (expectedValue instanceof Boolean) {
return ((Boolean) expectedValue).booleanValue() == isValueAdd;
}
}
if ("isOfType".equals(property)) { //$NON-NLS-1$
String value = node.getAttributes().get(IPeerModelProperties.PROP_TYPE);
if (expectedValue instanceof String) {
return value != null ? ((String)expectedValue).equals(value) : ((String)expectedValue).equalsIgnoreCase("null"); //$NON-NLS-1$
}
}
if ("hasAttribute".equals(property)) { //$NON-NLS-1$
String name = args != null && args.length > 0 ? (String)args[0] : null;
boolean hasAttribute = name != null && !"".equals(name) ? node.getAttributes().containsKey(name) : false; //$NON-NLS-1$
if (expectedValue instanceof Boolean) {
return ((Boolean) expectedValue).booleanValue() == hasAttribute;
}
}
if ("isAttribute".equals(property)) { //$NON-NLS-1$
String name = args != null && args.length > 0 ? (String)args[0] : null;
String value = name != null && !"".equals(name) ? node.getAttributes().get(name) : null; //$NON-NLS-1$
if (expectedValue != null) {
return expectedValue.toString().equals(value);
}
}
if ("hasOfflineService".equals(property)) { //$NON-NLS-1$
String services = node.getAttributes().get(IPeerModelProperties.PROP_OFFLINE_SERVICES);
List<String> list = services != null ? Arrays.asList(services.split(",\\s*")) : Collections.EMPTY_LIST; //$NON-NLS-1$
return list.contains(expectedValue);
}
return false;
}
/**
* Test for the peer model node local or remote services.
* <p>
* <b>Node:</b> This method cannot be called from within the TCF Dispatch Thread.
*
* @param node The model node. Must not be <code>null</code>.
* @param property The property to test.
* @param args The property arguments.
* @param expectedValue The expected value.
*
* @return <code>True</code> if the property to test has the expected value, <code>false</code>
* otherwise.
*/
protected boolean testServices(final IPeerModel node, final String property, final Object[] args, final Object expectedValue) {
Assert.isNotNull(node);
Assert.isTrue(!Protocol.isDispatchThread(), "Illegal Thread Access"); //$NON-NLS-1$
String services = null;
ILocatorModel model = node.getModel();
ILocatorModelPeerNodeQueryService queryService = model.getService(ILocatorModelPeerNodeQueryService.class);
if ("hasLocalService".equals(property)) { //$NON-NLS-1$
services = queryService.queryLocalServices(node);
} else {
services = queryService.queryRemoteServices(node);
}
if (CoreBundleActivator.getTraceHandler().isSlotEnabled(ITracing.ID_TRACE_PROPERTY_TESTER)) {
CoreBundleActivator.getTraceHandler().trace("testServices: property = " + property + ", expectedValue = " + expectedValue + ", services = " + services, //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
ITracing.ID_TRACE_PROPERTY_TESTER, LocatorModelPropertyTester.this);
}
if (services != null) {
// Lookup each service individually to avoid "accidental" matching
for (String service : services.split(",")) { //$NON-NLS-1$
if (service != null && service.trim().equals(expectedValue)) {
return true;
}
}
}
return false;
}
}
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