| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
| MessageSupport |
|
| 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.impl; |
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| 19 | ||
| 20 | import org.apache.camel.Exchange; |
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| 21 | import org.apache.camel.Message; |
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| 22 | import org.apache.camel.util.UuidGenerator; |
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| 23 | ||
| 24 | /** |
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| 25 | * A base class for implementation inheritence providing the core {@link Message} body |
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| 26 | * handling features but letting the derived class deal with headers. |
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| 27 | * |
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| 28 | * Unless a specific provider wishes to do something particularly clever with headers you probably |
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| 29 | * want to just derive from {@link DefaultMessage} |
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| 30 | * |
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| 31 | * @version $Revision: 535124 $ |
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| 32 | */ |
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| 33 | 812 | public abstract class MessageSupport implements Message { |
| 34 | 1 | private static final UuidGenerator defaultIdGenerator = new UuidGenerator(); |
| 35 | private Exchange exchange; |
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| 36 | private Object body; |
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| 37 | 812 | private String messageId = defaultIdGenerator.generateId(); |
| 38 | ||
| 39 | ||
| 40 | public Object getBody() { |
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| 41 | 197 | if (body == null) { |
| 42 | 22 | body = createBody(); |
| 43 | } |
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| 44 | 197 | return body; |
| 45 | } |
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| 46 | ||
| 47 | @SuppressWarnings({"unchecked"}) |
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| 48 | public <T> T getBody(Class<T> type) { |
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| 49 | 65 | Exchange e = getExchange(); |
| 50 | 65 | if (e != null) { |
| 51 | 65 | return e.getContext().getTypeConverter().convertTo(type, getBody()); |
| 52 | } |
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| 53 | 0 | return (T) getBody(); |
| 54 | } |
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| 55 | ||
| 56 | public void setBody(Object body) { |
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| 57 | 105 | this.body = body; |
| 58 | 105 | } |
| 59 | ||
| 60 | public <T> void setBody(Object body, Class<T> type) { |
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| 61 | 0 | Exchange e = getExchange(); |
| 62 | 0 | if (e != null) { |
| 63 | 0 | T value = e.getContext().getTypeConverter().convertTo(type, body); |
| 64 | 0 | if (value != null) { |
| 65 | 0 | body = value; |
| 66 | } |
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| 67 | } |
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| 68 | 0 | setBody(body); |
| 69 | 0 | } |
| 70 | ||
| 71 | public Message copy() { |
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| 72 | 24 | Message answer = newInstance(); |
| 73 | 24 | answer.setMessageId(getMessageId()); |
| 74 | 24 | answer.setBody(getBody()); |
| 75 | 24 | answer.getHeaders().putAll(getHeaders()); |
| 76 | 24 | return answer; |
| 77 | } |
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| 78 | ||
| 79 | public Exchange getExchange() { |
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| 80 | 77 | return exchange; |
| 81 | } |
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| 82 | ||
| 83 | public void setExchange(Exchange exchange) { |
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| 84 | 812 | this.exchange = exchange; |
| 85 | 812 | } |
| 86 | ||
| 87 | /** |
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| 88 | * Returns a new instance |
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| 89 | * |
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| 90 | * @return |
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| 91 | */ |
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| 92 | public abstract Message newInstance(); |
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| 93 | ||
| 94 | ||
| 95 | /** |
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| 96 | * A factory method to allow a provider to lazily create the message body for inbound messages from other sources |
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| 97 | * |
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| 98 | * @return the value of the message body or null if there is no value available |
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| 99 | */ |
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| 100 | protected Object createBody() { |
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| 101 | 22 | return null; |
| 102 | } |
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| 103 | ||
| 104 | ||
| 105 | /** |
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| 106 | * @return the messageId |
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| 107 | */ |
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| 108 | public String getMessageId(){ |
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| 109 | 25 | return this.messageId; |
| 110 | } |
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| 111 | ||
| 112 | ||
| 113 | /** |
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| 114 | * @param messageId the messageId to set |
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| 115 | */ |
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| 116 | public void setMessageId(String messageId){ |
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| 117 | 24 | this.messageId=messageId; |
| 118 | 24 | } |
| 119 | } |