Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
VmComponent |
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| 0.0;0 |
1 | /** |
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2 | * Licensed to the Apache Software Foundation (ASF) under one or more |
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3 | * contributor license agreements. See the NOTICE file distributed with |
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4 | * this work for additional information regarding copyright ownership. |
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5 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
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6 | * (the "License"); you may not use this file except in compliance with |
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7 | * the License. You may obtain a copy of the License at |
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8 | * |
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9 | * http://www.apache.org/licenses/LICENSE-2.0 |
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10 | * |
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11 | * Unless required by applicable law or agreed to in writing, software |
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12 | * distributed under the License is distributed on an "AS IS" BASIS, |
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13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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14 | * See the License for the specific language governing permissions and |
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15 | * limitations under the License. |
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16 | */ |
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17 | package org.apache.camel.component.vm; |
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18 | ||
19 | import java.util.HashMap; |
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20 | import java.util.Map; |
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21 | import java.util.concurrent.BlockingQueue; |
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22 | ||
23 | import org.apache.camel.Endpoint; |
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24 | import org.apache.camel.Exchange; |
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25 | import org.apache.camel.component.seda.SedaComponent; |
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26 | import org.apache.camel.component.seda.SedaEndpoint; |
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27 | ||
28 | /** |
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29 | * An implementation of the <a href="http://activemq.apache.org/camel/vm.html">VM components</a> |
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30 | * for asynchronous SEDA exchanges on a {@link BlockingQueue} within the classloader tree containing |
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31 | * the camel-core.jar. i.e. to handle communicating across CamelContext instances and possibly across |
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32 | * web application contexts, providing that camel-core.jar is on the system classpath. |
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33 | * |
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34 | * @version $Revision: 1.1 $ |
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35 | */ |
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36 | 6 | public class VmComponent<E extends Exchange> extends SedaComponent<E> { |
37 | 3 | protected static Map<String, BlockingQueue<Exchange>> queues = new HashMap<String, BlockingQueue<Exchange>>(); |
38 | ||
39 | @Override |
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40 | protected Endpoint<E> createEndpoint(String uri, String remaining, Map parameters) throws Exception { |
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41 | 9 | BlockingQueue<E> blockingQueue = (BlockingQueue<E>) getBlockingQueue(uri); |
42 | 9 | return new SedaEndpoint<E>(uri, this, blockingQueue); |
43 | } |
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44 | ||
45 | protected BlockingQueue<Exchange> getBlockingQueue(String uri) { |
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46 | 9 | synchronized (queues) { |
47 | 9 | BlockingQueue<Exchange> answer = queues.get(uri); |
48 | 9 | if (answer == null) { |
49 | 6 | answer = (BlockingQueue<Exchange>) createQueue(); |
50 | 6 | queues.put(uri, answer); |
51 | } |
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52 | 9 | return answer; |
53 | 0 | } |
54 | } |
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55 | } |