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/*******************************************************************************
* Copyright (c) 2004, 2007 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.ote.message;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CopyOnWriteArraySet;
import java.util.logging.Level;
import org.eclipse.osee.framework.logging.OseeLog;
import org.eclipse.osee.ote.message.instrumentation.IOInstrumentation;
/**
* @author Andrew M. Finkbeiner
*/
public class IOInstrumentationDB {
private final Map<String, IOInstrumentation> ioInstrumentation = new ConcurrentHashMap<String, IOInstrumentation>();;
private final CopyOnWriteArraySet<IInstrumentationRegistrationListener> listeners =
new CopyOnWriteArraySet<IInstrumentationRegistrationListener>();
IOInstrumentationDB() {
}
public IOInstrumentation getIOInstrumentation(String name) {//, IOInstrumentation io){
return ioInstrumentation.get(name);
}
public IOInstrumentation registerIOInstrumentation(String name, IOInstrumentation io) {
IOInstrumentation old = ioInstrumentation.put(name, io);
if (old != io) {
notifyRegistration(name, io);
}
return old;
}
public void unregisterIOInstrumentation(String name) {
IOInstrumentation io = ioInstrumentation.remove(name);
if (io != null) {
notifyDeregistration(name);
}
}
public void addRegistrationListener(IInstrumentationRegistrationListener listener) {
listeners.add(listener);
for (Map.Entry<String, IOInstrumentation> entry : ioInstrumentation.entrySet()) {
try {
listener.onRegistered(entry.getKey(), entry.getValue());
} catch (Exception e) {
OseeLog.log(IOInstrumentation.class, Level.SEVERE,
"exception notifying listener of IO instrumentation registration", e);
}
}
}
public void removeRegistrationListener(IInstrumentationRegistrationListener listener) {
listeners.remove(listener);
}
private void notifyRegistration(String name, IOInstrumentation io) {
for (IInstrumentationRegistrationListener listener : listeners) {
try {
listener.onRegistered(name, io);
} catch (Exception e) {
OseeLog.log(IOInstrumentation.class, Level.SEVERE,
"exception notifying listener of IO instrumentation registration", e);
}
}
}
private void notifyDeregistration(String name) {
for (IInstrumentationRegistrationListener listener : listeners) {
try {
listener.onDeregistered(name);
} catch (Exception e) {
OseeLog.log(IOInstrumentation.class, Level.SEVERE,
"exception notifying listener of IO instrumentation de-registration", e);
}
}
}
}
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