| /******************************************************************************* |
| * Copyright (c) 2013 Boeing. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Boeing - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ote.bytemessage; |
| |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.locks.Condition; |
| import java.util.concurrent.locks.ReentrantLock; |
| import java.util.logging.Level; |
| |
| import org.eclipse.osee.framework.logging.OseeLog; |
| import org.eclipse.ote.bytemessage.OteByteMessage; |
| import org.eclipse.ote.bytemessage.OteByteMessageUtil; |
| import org.osgi.service.event.Event; |
| import org.osgi.service.event.EventHandler; |
| |
| |
| public class RespondAfterWait implements EventHandler { |
| |
| private int wait; |
| private OteByteMessage responseMessage; |
| private ReentrantLock lock; |
| private Condition condition; |
| private boolean notCanceled = true; |
| |
| public RespondAfterWait(OteByteMessage oteByteMessageResponse, int wait) { |
| this.wait = wait; |
| this.responseMessage = oteByteMessageResponse; |
| this.lock = new ReentrantLock(); |
| this.condition = lock.newCondition(); |
| } |
| |
| @Override |
| public void handleEvent(Event event) { |
| lock.lock(); |
| try{ |
| long nano = TimeUnit.MILLISECONDS.toNanos(wait); |
| while(nano > 0 && notCanceled ){ |
| try { |
| nano = condition.awaitNanos(nano); |
| } catch (InterruptedException e) { |
| OseeLog.log(getClass(), Level.SEVERE, e); |
| } |
| } |
| } finally { |
| lock.unlock(); |
| } |
| if(notCanceled){ |
| OteByteMessage msg = OteByteMessageUtil.getOteByteMessage(event); |
| responseMessage.getHeader().RESPONSE_ID.setValue(msg.getHeader().MESSAGE_SEQUENCE_NUMBER.getValue()); |
| OteByteMessageUtil.sendEvent(responseMessage); |
| } |
| } |
| |
| public void cancel(){ |
| notCanceled = false; |
| lock.lock(); |
| try{ |
| condition.signal(); |
| } finally { |
| lock.unlock(); |
| } |
| } |
| |
| } |