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CamelJmsToFileExample |
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1 | /** |
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2 | * |
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3 | * Licensed to the Apache Software Foundation (ASF) under one or more |
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4 | * contributor license agreements. See the NOTICE file distributed with |
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5 | * this work for additional information regarding copyright ownership. |
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6 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
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7 | * (the "License"); you may not use this file except in compliance with |
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8 | * the License. You may obtain a copy of the License at |
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9 | * |
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10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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11 | * |
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12 | * Unless required by applicable law or agreed to in writing, software |
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13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 | * See the License for the specific language governing permissions and |
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16 | * limitations under the License. |
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17 | */ |
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18 | ||
19 | package org.apache.camel.example.jmstofile; |
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20 | ||
21 | import org.apache.camel.component.jms.JmsComponent; |
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22 | import javax.jms.ConnectionFactory; |
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23 | import org.apache.activemq.ActiveMQConnectionFactory; |
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24 | import org.apache.camel.CamelTemplate; |
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25 | import org.apache.camel.CamelContext; |
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26 | import org.apache.camel.Exchange; |
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27 | import org.apache.camel.Processor; |
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28 | import org.apache.camel.builder.RouteBuilder; |
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29 | import org.apache.camel.impl.DefaultCamelContext; |
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30 | ||
31 | ||
32 | /** |
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33 | * An example class for demonstrating some of the basics behind camel |
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34 | * |
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35 | * This example will send some text messages on to a JMS Queue, consume them and |
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36 | * persist them to disk |
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37 | * |
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38 | * @version $Revision: 529902 $ |
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39 | * |
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40 | */ |
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41 | 0 | public class CamelJmsToFileExample { |
42 | ||
43 | public static void main(String args[]) throws Exception{ |
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44 | // START SNIPPET: e1 |
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45 | 0 | CamelContext context=new DefaultCamelContext(); |
46 | // END SNIPPET: e1 |
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47 | // Set up the ActiveMQ JMS Components |
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48 | // START SNIPPET: e2 |
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49 | 0 | ConnectionFactory connectionFactory=new ActiveMQConnectionFactory("vm://localhost?broker.persistent=false"); |
50 | // note we can explicity name the component |
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51 | 0 | context.addComponent("test-jms",JmsComponent.jmsComponentAutoAcknowledge(connectionFactory)); |
52 | // END SNIPPET: e2 |
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53 | // Add some configuration by hand ... |
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54 | // START SNIPPET: e3 |
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55 | 0 | context.addRoutes(new RouteBuilder(){ |
56 | ||
57 | 0 | public void configure(){ |
58 | 0 | from("test-jms:queue:test.queue").to("file://test"); |
59 | // set up a listener on the file component |
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60 | 0 | from("file://test").process(new Processor(){ |
61 | ||
62 | 0 | public void process(Exchange e){ |
63 | 0 | System.out.println("Received exchange: "+e.getIn()); |
64 | 0 | } |
65 | }); |
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66 | 0 | } |
67 | }); |
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68 | // END SNIPPET: e3 |
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69 | // Camel template - a handy class for kicking off exchanges |
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70 | // START SNIPPET: e4 |
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71 | 0 | CamelTemplate template =new CamelTemplate(context); |
72 | // END SNIPPET: e4 |
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73 | // Now everything is set up - lets start the context |
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74 | 0 | context.start(); |
75 | // now send some test text to a component - for this case a JMS Queue |
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76 | // The text get converted to JMS messages - and sent to the Queue test.queue |
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77 | // The file component is listening for messages from the Queue test.queue, consumes |
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78 | // them and stores them to disk. The content of each file will be the test test we sent here. |
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79 | // The listener on the file component gets notfied when new files are found ... |
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80 | // that's it! |
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81 | // START SNIPPET: e5 |
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82 | 0 | for(int i=0;i<10;i++){ |
83 | 0 | template.sendBody("test-jms:queue:test.queue","Test Message: "+i); |
84 | } |
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85 | // END SNIPPET: e5 |
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86 | 0 | Thread.sleep(1000); |
87 | 0 | context.stop(); |
88 | 0 | } |
89 | } |