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.DefaultComponent;
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 DefaultComponent {
036        private final Map<String, Timer> timers = new HashMap<String, Timer>();
037    
038        public Timer getTimer(TimerEndpoint endpoint) {
039            String key = endpoint.getTimerName();
040            if (!endpoint.isDaemon()) {
041                key = "nonDaemon:" + key;
042            }
043    
044            Timer answer;
045            synchronized (timers) {
046                answer = timers.get(key);
047                if (answer == null) {
048                    // the timer name is also the thread name, so lets resolve a name to be used
049                    String name = endpoint.getCamelContext().getExecutorServiceManager().resolveThreadName("timer://" + endpoint.getTimerName());
050                    answer = new Timer(name, endpoint.isDaemon());
051                    timers.put(key, answer);
052                }
053            }
054            return answer;
055        }
056    
057        @Override
058        protected Endpoint createEndpoint(String uri, String remaining, Map<String, Object> parameters) throws Exception {
059            TimerEndpoint answer = new TimerEndpoint(uri, this, remaining);
060    
061            // convert time from String to a java.util.Date using the supported patterns
062            String time = getAndRemoveParameter(parameters, "time", String.class);
063            String pattern = getAndRemoveParameter(parameters, "pattern", String.class);
064            if (time != null) {
065                SimpleDateFormat sdf;
066                if (pattern != null) {
067                    sdf = new SimpleDateFormat(pattern);
068                } else if (time.contains("T")) {
069                    sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
070                } else {
071                    sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
072                }
073                Date date = sdf.parse(time);
074                answer.setTime(date);
075            }
076    
077            setProperties(answer, parameters);
078            return answer;
079        }
080    
081        @Override
082        protected void doStop() throws Exception {
083            Collection<Timer> collection = timers.values();
084            for (Timer timer : collection) {
085                timer.cancel();
086            }
087            timers.clear();
088        }
089    }