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/*******************************************************************************
* Copyright (c) 2010 Boeing.
* 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:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.messaging.event.res.internal;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Map.Entry;
import java.util.logging.Level;
import org.eclipse.osee.framework.core.exception.OseeCoreException;
import org.eclipse.osee.framework.jdk.core.type.HashCollection;
import org.eclipse.osee.framework.logging.OseeLog;
import org.eclipse.osee.framework.messaging.ConnectionListener;
import org.eclipse.osee.framework.messaging.ConnectionNode;
import org.eclipse.osee.framework.messaging.OseeMessagingListener;
import org.eclipse.osee.framework.messaging.OseeMessagingStatusCallback;
import org.eclipse.osee.framework.messaging.event.res.IFrameworkEventListener;
import org.eclipse.osee.framework.messaging.event.res.IOseeCoreModelEventService;
import org.eclipse.osee.framework.messaging.event.res.RemoteEvent;
/**
* @author Donald G. Dunne
*/
public class OseeCoreModelEventServiceImpl implements OseeMessagingStatusCallback, IOseeCoreModelEventService {
private final Map<IFrameworkEventListener, HashCollection<ResMessages, OseeMessagingListener>> subscriptions =
new HashMap<IFrameworkEventListener, HashCollection<ResMessages, OseeMessagingListener>>();
private final Map<ResMessages, Boolean> messages;
private final ConnectionNode connectionNode;
public OseeCoreModelEventServiceImpl(ConnectionNode connectionNode, Map<ResMessages, Boolean> messages) {
this.connectionNode = connectionNode;
this.messages = messages;
}
@Override
public void success() {
// do nothing
}
@Override
public void fail(Throwable th) {
OseeLog.log(Activator.class, Level.SEVERE, th);
}
@Override
public void sendRemoteEvent(RemoteEvent remoteEvent) throws OseeCoreException {
ResMessages resMessage = getResMessageType(remoteEvent);
if (resMessage == null) {
OseeLog.log(Activator.class, Level.INFO, null, "ResEventManager: Unhandled remote event [%s]", resMessage);
} else if (connectionNode == null) {
OseeLog.log(Activator.class, Level.INFO, null,
"ResEventManager: Connection node was null - unable to send remote event [%s]", resMessage);
} else {
connectionNode.send(resMessage, remoteEvent, this);
}
}
private ResMessages getResMessageType(RemoteEvent remoteEvent) {
ResMessages resMessage = null;
if (remoteEvent != null) {
for (ResMessages allowedMessage : messages.keySet()) {
Class<?> messageClass = allowedMessage.getSerializationClass();
if (messageClass.isAssignableFrom(remoteEvent.getClass())) {
resMessage = allowedMessage;
break;
}
}
}
return resMessage;
}
@Override
public void addConnectionListener(ConnectionListener connectionListener) {
connectionNode.addConnectionListener(connectionListener);
}
@Override
public void removeConnectionListener(ConnectionListener connectionListener) {
connectionNode.removeConnectionListener(connectionListener);
}
@Override
public void addFrameworkListener(IFrameworkEventListener frameworkEventListener) {
OseeLog.log(Activator.class, Level.INFO, "Registering Client for Remote Events");
for (Entry<ResMessages, Boolean> messageEntries : messages.entrySet()) {
ResMessages resMessageID = messageEntries.getKey();
boolean isVerbose = messageEntries.getValue();
subscribe(resMessageID, resMessageID.getSerializationClass(), isVerbose, frameworkEventListener);
}
}
@Override
public void removeFrameworkListener(IFrameworkEventListener frameworkEventListener) {
OseeLog.log(Activator.class, Level.INFO, "De-Registering Client for Remote Events");
HashCollection<ResMessages, OseeMessagingListener> listeners = subscriptions.get(frameworkEventListener);
if (listeners != null) {
for (ResMessages messageID : listeners.keySet()) {
Collection<OseeMessagingListener> listernerList = listeners.getValues(messageID);
if (listernerList != null) {
for (OseeMessagingListener listener : listernerList) {
connectionNode.unsubscribe(messageID, listener, this);
}
}
}
subscriptions.remove(frameworkEventListener);
}
}
private <T extends RemoteEvent> void subscribe(ResMessages messageId, Class<T> clazz, boolean isVerbose, IFrameworkEventListener frameworkEventListener) {
OseeMessagingListener listener = new FrameworkRelayMessagingListener<T>(clazz, frameworkEventListener, isVerbose);
connectionNode.subscribe(messageId, listener, this);
HashCollection<ResMessages, OseeMessagingListener> listeners = subscriptions.get(frameworkEventListener);
if (listeners == null) {
listeners = new HashCollection<ResMessages, OseeMessagingListener>(true, HashSet.class);
subscriptions.put(frameworkEventListener, listeners);
}
listeners.put(messageId, listener);
}
}
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