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/*******************************************************************************
* Copyright (c) 2013 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.services.selection;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
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.interfaces.nodes.IPeerNode;
import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerNodeProperties;
import org.eclipse.tcf.te.tcf.locator.interfaces.services.IDefaultContextService;
/**
* Default context service filter implementation to filter peer model nodes depending on their
* runtime and offline services.
*/
public class RuntimeServiceContextFilter implements IDefaultContextService.IContextFilter {
protected final String[] serviceNames;
protected final boolean useDisconnectedContexts;
/**
* Constructor.
* @param serviceName The service name to check.
* @param useDisconnectedContexts <code>true</code> if disconnected targets should be selected too.
*/
public RuntimeServiceContextFilter(String serviceName, boolean useDisconnectedContexts) {
this.serviceNames = new String[]{serviceName};
this.useDisconnectedContexts = useDisconnectedContexts;
}
/**
* Constructor.
* @param serviceNames The list of service names to check.
* @param useDisconnectedContexts <code>true</code> if disconnected targets should be selected too.
*/
public RuntimeServiceContextFilter(String[] serviceNames, boolean useDisconnectedContexts) {
this.serviceNames = serviceNames;
this.useDisconnectedContexts = useDisconnectedContexts;
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.tcf.locator.interfaces.services.IDefaultContextService.IContextFilter#select(org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerNode)
*/
@Override
public boolean select(final IPeerNode peerNode) {
Assert.isNotNull(peerNode);
final IPeer peer = peerNode.getPeer();
final AtomicBoolean result = new AtomicBoolean(false);
Protocol.invokeAndWait(new Runnable() {
@Override
public void run() {
List<String> list;
String services = peerNode.getStringProperty(IPeerNodeProperties.PROP_REMOTE_SERVICES);
if (services != null) {
list = Arrays.asList(services.split(",\\s*")); //$NON-NLS-1$
boolean containsAll = true;
for (String serviceName : serviceNames) {
containsAll &= list.contains(serviceName);
if (!containsAll) {
break;
}
}
result.set(containsAll);
return;
}
if (useDisconnectedContexts) {
services = peer.getAttributes().get(IPeerNodeProperties.PROP_OFFLINE_SERVICES);
list = services != null ? Arrays.asList(services.split(",\\s*")) : Collections.EMPTY_LIST; //$NON-NLS-1$
boolean containsAll = true;
for (String serviceName : serviceNames) {
containsAll &= list.contains(serviceName);
if (!containsAll) {
break;
}
}
result.set(containsAll);
}
}
});
return result.get();
}
}
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