001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.camel.impl;
018
019import org.apache.camel.AsyncCallback;
020import org.apache.camel.Endpoint;
021import org.apache.camel.Exchange;
022import org.apache.camel.util.EventHelper;
023import org.apache.camel.util.StopWatch;
024
025/**
026 * Helper class to notify on exchange sending events in async engine
027 */
028public class EventNotifierCallback implements AsyncCallback {
029    private final AsyncCallback originalCallback;
030    private final StopWatch watch;
031    private final Exchange exchange;
032    private final Endpoint endpoint;
033    private final boolean sending;
034
035    public EventNotifierCallback(AsyncCallback originalCallback, Exchange exchange,
036            Endpoint endpoint) {
037        this.originalCallback = originalCallback;
038        this.exchange = exchange;
039        this.endpoint = endpoint;
040        this.sending = EventHelper.notifyExchangeSending(exchange.getContext(), exchange, endpoint);
041        if (this.sending) {
042            this.watch = new StopWatch();
043        } else {
044            this.watch = null;
045        }
046    }
047
048    @Override
049    public void done(boolean doneSync) {
050        if (watch != null) {
051            long timeTaken = watch.taken();
052            EventHelper.notifyExchangeSent(exchange.getContext(), exchange, endpoint, timeTaken);
053        }
054        originalCallback.done(doneSync);
055    }
056}