| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
| MulticastProcessor |
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| 0.0;0 |
| 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 | package org.apache.camel.processor; |
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| 19 | ||
| 20 | import org.apache.camel.Endpoint; |
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| 21 | import org.apache.camel.Exchange; |
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| 22 | import org.apache.camel.Processor; |
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| 23 | import org.apache.camel.Producer; |
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| 24 | import org.apache.camel.impl.ServiceSupport; |
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| 25 | ||
| 26 | import java.util.ArrayList; |
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| 27 | import java.util.Collection; |
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| 28 | ||
| 29 | /** |
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| 30 | * Implements the Multicast pattern to send a message exchange to a number of endpoints, each endpoint receiving a copy of |
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| 31 | * the message exchange. |
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| 32 | * |
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| 33 | * @version $Revision: 534145 $ |
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| 34 | */ |
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| 35 | public class MulticastProcessor extends ServiceSupport implements Processor { |
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| 36 | private Collection<Producer> producers; |
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| 37 | ||
| 38 | /** |
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| 39 | * A helper method to convert a list of endpoints into a list of processors |
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| 40 | */ |
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| 41 | public static <E extends Exchange> Collection<Producer> toProducers(Collection<Endpoint> endpoints) throws Exception { |
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| 42 | 3 | Collection<Producer> answer = new ArrayList<Producer>(); |
| 43 | 3 | for (Endpoint endpoint : endpoints) { |
| 44 | 9 | answer.add(endpoint.createProducer()); |
| 45 | 9 | } |
| 46 | 3 | return answer; |
| 47 | } |
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| 48 | ||
| 49 | 3 | public MulticastProcessor(Collection<Endpoint> endpoints) throws Exception { |
| 50 | 3 | this.producers = toProducers(endpoints); |
| 51 | 3 | } |
| 52 | ||
| 53 | @Override |
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| 54 | public String toString() { |
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| 55 | 5 | return "Multicast" + getEndpoints(); |
| 56 | } |
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| 57 | ||
| 58 | public void process(Exchange exchange) throws Exception { |
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| 59 | 1 | for (Producer producer : producers) { |
| 60 | 3 | Exchange copy = copyExchangeStrategy(producer, exchange); |
| 61 | 3 | producer.process(copy); |
| 62 | 3 | } |
| 63 | 1 | } |
| 64 | ||
| 65 | protected void doStop() throws Exception { |
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| 66 | 2 | for (Producer producer : producers) { |
| 67 | 7 | producer.stop(); |
| 68 | 7 | } |
| 69 | 2 | } |
| 70 | ||
| 71 | protected void doStart() throws Exception { |
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| 72 | 2 | for (Producer producer : producers) { |
| 73 | 7 | producer.start(); |
| 74 | 7 | } |
| 75 | 2 | } |
| 76 | ||
| 77 | /** |
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| 78 | * Returns the producers to multicast to |
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| 79 | */ |
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| 80 | public Collection<Producer> getProducers() { |
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| 81 | 1 | return producers; |
| 82 | } |
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| 83 | ||
| 84 | /** |
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| 85 | * Returns the list of endpoints |
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| 86 | */ |
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| 87 | public Collection<Endpoint> getEndpoints() { |
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| 88 | 7 | Collection<Endpoint> answer = new ArrayList<Endpoint>(); |
| 89 | 7 | for (Producer producer : producers) { |
| 90 | 17 | answer.add(producer.getEndpoint()); |
| 91 | 17 | } |
| 92 | 7 | return answer; |
| 93 | } |
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| 94 | ||
| 95 | /** |
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| 96 | * Strategy method to copy the exchange before sending to another endpoint. Derived classes such as the |
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| 97 | * {@link Pipeline} will not clone the exchange |
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| 98 | * |
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| 99 | * @param producer the producer that will send the exchange |
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| 100 | * @param exchange @return the current exchange if no copying is required such as for a pipeline otherwise a new copy of the exchange is returned. |
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| 101 | */ |
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| 102 | protected Exchange copyExchangeStrategy(Producer producer, Exchange exchange) { |
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| 103 | 3 | return producer.createExchange(exchange); |
| 104 | } |
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| 105 | } |