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     */
017    package org.apache.camel.component.timer;
018    
019    import java.text.SimpleDateFormat;
020    import java.util.Collection;
021    import java.util.Date;
022    import java.util.HashMap;
023    import java.util.Map;
024    import java.util.Timer;
025    
026    import org.apache.camel.Endpoint;
027    import org.apache.camel.impl.UriEndpointComponent;
028    
029    /**
030     * Represents the component that manages {@link TimerEndpoint}.  It holds the
031     * list of {@link TimerConsumer} objects that are started.
032     *
033     * @version 
034     */
035    public class TimerComponent extends UriEndpointComponent {
036        private final Map<String, Timer> timers = new HashMap<String, Timer>();
037    
038        public TimerComponent() {
039            super(TimerEndpoint.class);
040        }
041    
042        public Timer getTimer(TimerEndpoint endpoint) {
043            String key = endpoint.getTimerName();
044            if (!endpoint.isDaemon()) {
045                key = "nonDaemon:" + key;
046            }
047    
048            Timer answer;
049            synchronized (timers) {
050                answer = timers.get(key);
051                if (answer == null) {
052                    // the timer name is also the thread name, so lets resolve a name to be used
053                    String name = endpoint.getCamelContext().getExecutorServiceManager().resolveThreadName("timer://" + endpoint.getTimerName());
054                    answer = new Timer(name, endpoint.isDaemon());
055                    timers.put(key, answer);
056                }
057            }
058            return answer;
059        }
060    
061        @Override
062        protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception {
063            TimerEndpoint answer = new TimerEndpoint(uri, this, remaining);
064    
065            // convert time from String to a java.util.Date using the supported patterns
066            String time = getAndRemoveParameter(parameters, "time", String.class);
067            String pattern = getAndRemoveParameter(parameters, "pattern", String.class);
068            if (time != null) {
069                SimpleDateFormat sdf;
070                if (pattern != null) {
071                    sdf = new SimpleDateFormat(pattern);
072                } else if (time.contains("T")) {
073                    sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
074                } else {
075                    sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
076                }
077                Date date = sdf.parse(time);
078                answer.setTime(date);
079            }
080    
081            setProperties(answer, parameters);
082            return answer;
083        }
084    
085        @Override
086        protected void doStop() throws Exception {
087            Collection<Timer> collection = timers.values();
088            for (Timer timer : collection) {
089                timer.cancel();
090            }
091            timers.clear();
092        }
093    }