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/****************************************************************************
* Copyright (c) 2008 Marcelo Mayworm.
*
* This program and the accompanying materials are made
* available under the terms of the Eclipse Public License 2.0
* which is available at https://www.eclipse.org/legal/epl-2.0/
*
* Contributors: Marcelo Mayworm - initial API and implementation
*
*
* SPDX-License-Identifier: EPL-2.0
*****************************************************************************/
package org.eclipse.ecf.presence.search;
import java.util.*;
/**
* Abstract implementation of IUserSearchManager. Provides implementations of listener
* methods that subsclasses may use to avoid having to implement them
* themselves. This class may be subclassed as needed.
* @since 2.0
*/
public abstract class AbstractUserSearchManager implements IUserSearchManager {
/** keep the list of listeners */
private final List userSearchListeners = new ArrayList(5);
/**
* Add listener to {@link IUserSearchListener}. The listener's handleEvent method will be
* asynchronously called.
* @param l
* the IUserSearchListener to add
*/
public void addListener(IUserSearchListener l) {
synchronized (userSearchListeners) {
userSearchListeners.add(l);
}
}
/**
* Remove listener from the listener list.
*
* @param l
* the IUserSearchListener to remove
*/
public void removeListener(IUserSearchListener l) {
synchronized (userSearchListeners) {
userSearchListeners.remove(l);
}
}
/**
* Fires a user search event, invoking the {@link IUserSearchListener}.
*
* @param event IUserSearchEvent.
*/
protected void fireUserSearchEvent(IUserSearchEvent event) {
List toNotify = null;
// Copy array
synchronized (userSearchListeners) {
toNotify = new ArrayList(userSearchListeners);
}
// Notify all in toNotify
for (Iterator i = toNotify.iterator(); i.hasNext();) {
IUserSearchListener l = (IUserSearchListener) i.next();
l.handleUserSearchEvent(event);
}
}
}
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