| // |
| // ======================================================================== |
| // Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd. |
| // ------------------------------------------------------------------------ |
| // All rights reserved. This program and the accompanying materials |
| // are made available under the terms of the Eclipse Public License v1.0 |
| // and Apache License v2.0 which accompanies this distribution. |
| // |
| // The Eclipse Public License is available at |
| // http://www.eclipse.org/legal/epl-v10.html |
| // |
| // The Apache License v2.0 is available at |
| // http://www.opensource.org/licenses/apache2.0.php |
| // |
| // You may elect to redistribute this code under either of these licenses. |
| // ======================================================================== |
| // |
| |
| package org.eclipse.jetty.websocket.jsr356; |
| |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| |
| import org.eclipse.jetty.util.BlockingArrayQueue; |
| import org.eclipse.jetty.util.log.Log; |
| import org.eclipse.jetty.util.log.Logger; |
| |
| public class MessageQueue extends BlockingArrayQueue<String> |
| { |
| private static final Logger LOG = Log.getLogger(MessageQueue.class); |
| |
| public void awaitMessages(int expectedMessageCount, int timeoutDuration, TimeUnit timeoutUnit) throws TimeoutException |
| { |
| long msDur = TimeUnit.MILLISECONDS.convert(timeoutDuration,timeoutUnit); |
| long now = System.currentTimeMillis(); |
| long expireOn = now + msDur; |
| if (LOG.isDebugEnabled()) |
| { |
| LOG.debug("Await Message.. Now: {} - expireOn: {} ({} ms)",now,expireOn,msDur); |
| } |
| |
| while (this.size() < expectedMessageCount) |
| { |
| try |
| { |
| TimeUnit.MILLISECONDS.sleep(20); |
| } |
| catch (InterruptedException gnore) |
| { |
| /* ignore */ |
| } |
| if (!LOG.isDebugEnabled() && (System.currentTimeMillis() > expireOn)) |
| { |
| throw new TimeoutException(String.format("Timeout reading all %d expected messages. (managed to only read %d messages)",expectedMessageCount, |
| this.size())); |
| } |
| } |
| } |
| } |