/*
* Copyright 2009, Mahmood Ali.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Mahmood Ali. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.notnoop.apns.internal;
import java.util.Date;
import java.util.Map;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.Executors;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.notnoop.apns.ApnsNotification;
import com.notnoop.apns.ApnsService;
import com.notnoop.exceptions.NetworkIOException;
public class QueuedApnsService extends AbstractApnsService {
private static final Logger logger = LoggerFactory.getLogger(QueuedApnsService.class);
private ApnsService service;
private BlockingQueue<ApnsNotification> queue;
private AtomicBoolean started = new AtomicBoolean(false);
public QueuedApnsService(ApnsService service) {
this(service, null);
}
public QueuedApnsService(ApnsService service, final ThreadFactory tf) {
super(null);
this.service = service;
this.queue = new LinkedBlockingQueue<ApnsNotification>();
this.threadFactory = tf == null ? Executors.defaultThreadFactory() : tf;
this.thread = null;
}
@Override
public void push(ApnsNotification msg) {
if (!started.get()) {
throw new IllegalStateException("service hasn't be started or was closed");
}
queue.add(msg);
}
private final ThreadFactory threadFactory;
private Thread thread;
private volatile boolean shouldContinue;
public void start() {
if (started.getAndSet(true)) {
// I prefer if we throw a runtime IllegalStateException here,
// but I want to maintain semantic backward compatibility.
// So it is returning immediately here
return;
}
service.start();
shouldContinue = true;
thread = threadFactory.newThread(new Runnable() {
public void run() {
while (shouldContinue) {
try {
ApnsNotification msg = queue.take();
service.push(msg);
} catch (InterruptedException e) {
// ignore
} catch (NetworkIOException e) {
// ignore: failed connect...
} catch (Exception e) {
// weird if we reached here - something wrong is happening, but we shouldn't stop the service anyway!
logger.warn("Unexpected message caught... Shouldn't be here", e);
}
}
}
});
thread.start();
}
public void stop() {
started.set(false);
shouldContinue = false;
thread.interrupt();
service.stop();
}
@Override
public Map<String, Date> getInactiveDevices() throws NetworkIOException {
return service.getInactiveDevices();
}
public void testConnection() throws NetworkIOException {
service.testConnection();
}
}