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SessionReconnectQueue.java
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SessionReconnectQueue.java
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/*
* Copyright 2015-2018 Austin Keener & Michael Ritter & Florian Spieß
*
* 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 net.dv8tion.jda.core.requests;
import net.dv8tion.jda.core.JDA;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;
@Deprecated
public class SessionReconnectQueue
{
public static final int RECONNECT_DELAY = WebSocketClient.IDENTIFY_DELAY * 1000;
protected final Object lock = new Object();
protected final BlockingQueue<WebSocketClient> reconnectQueue;
protected volatile Thread reconnectThread;
public SessionReconnectQueue()
{
this(new LinkedBlockingQueue<>());
}
public SessionReconnectQueue(final BlockingQueue<WebSocketClient> reconnectQueue)
{
this.reconnectQueue = reconnectQueue;
}
public void appendSession(final WebSocketClient client)
{
if (!reconnectQueue.offer(client))
throw new IllegalStateException("Queue rejected session");
runWorker();
}
public void removeSession(final WebSocketClient client)
{
reconnectQueue.remove(client);
}
protected void runWorker()
{
synchronized (lock)
{
if (reconnectThread == null)
reconnectThread = new ReconnectThread();
}
}
protected final class ReconnectThread extends Thread
{
protected ReconnectThread()
{
super("JDA-ReconnectThread");
start();
}
@Override
public final void run()
{
boolean isFirst = true;
while (!reconnectQueue.isEmpty())
{
try
{
final WebSocketClient client = reconnectQueue.poll();
client.reconnect(true, isFirst);
isFirst = false;
if (!reconnectQueue.isEmpty())
{
// Wait for the client to actually send
while (client.getJDA().getStatus().ordinal() < JDA.Status.AWAITING_LOGIN_CONFIRMATION.ordinal())
Thread.sleep(50);
// Respect 5 second backoff
Thread.sleep(RECONNECT_DELAY);
}
}
catch (InterruptedException ex)
{
throw new AssertionError(ex);
}
}
synchronized (lock)
{
reconnectThread = null;
if (!reconnectQueue.isEmpty())
runWorker(); // eliminate highly unlikely race condition
}
}
}
}