/*
* Copyright 2011 JBoss, by Red Hat, Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.errai.bus.server.util;
import org.jboss.errai.bus.client.api.Message;
import org.jboss.errai.bus.client.api.laundry.Laundry;
import org.jboss.errai.bus.client.api.laundry.LaundryList;
import org.jboss.errai.bus.client.api.laundry.LaundryReclaim;
import org.jboss.errai.bus.server.api.QueueSession;
import org.jboss.errai.common.client.framework.Assert;
import java.util.Iterator;
import java.util.Queue;
import java.util.concurrent.ConcurrentLinkedQueue;
public class ServerLaundryList implements LaundryList {
private Queue<Laundry> listOfLaundry;
public static ServerLaundryList get(QueueSession session) {
return setup(LocalContext.get(session));
}
public static ServerLaundryList get(Message message) {
return setup(LocalContext.get(message));
}
private ServerLaundryList() {
listOfLaundry = new ConcurrentLinkedQueue<Laundry>();
}
public void cleanAll() {
Iterator<Laundry> iter = listOfLaundry.iterator();
while (iter.hasNext()) {
try {
iter.next().clean();
}
catch (Exception e) {
e.printStackTrace();
}
iter.remove();
}
}
public LaundryReclaim add(final Laundry laundry) {
listOfLaundry.add(Assert.notNull(laundry));
return new LaundryReclaim() {
public boolean reclaim() {
return remove(laundry);
}
};
}
public boolean remove(final Laundry laundry) {
return listOfLaundry.remove(laundry);
}
@SuppressWarnings({"SynchronizationOnLocalVariableOrMethodParameter"})
private static ServerLaundryList setup(final LocalContext ctx) {
ServerLaundryList list;
synchronized (ctx) {
if ((list = ctx.getAttribute(ServerLaundryList.class)) == null)
ctx.setAttribute(ServerLaundryList.class, list = new ServerLaundryList());
}
return list;
}
}