| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
| MessageSupport |
|
| 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.impl; |
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| 18 | ||
| 19 | import org.apache.camel.Exchange; |
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| 20 | import org.apache.camel.Message; |
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| 21 | import org.apache.camel.util.UuidGenerator; |
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| 22 | ||
| 23 | /** |
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| 24 | * A base class for implementation inheritence providing the core |
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| 25 | * {@link Message} body handling features but letting the derived class deal |
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| 26 | * with headers. |
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| 27 | * |
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| 28 | * Unless a specific provider wishes to do something particularly clever with |
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| 29 | * headers you probably want to just derive from {@link DefaultMessage} |
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| 30 | * |
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| 31 | * @version $Revision: 564677 $ |
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| 32 | */ |
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| 33 | 1500 | public abstract class MessageSupport implements Message { |
| 34 | 3 | private static final UuidGenerator DEFALT_ID_GENERATOR = new UuidGenerator(); |
| 35 | private Exchange exchange; |
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| 36 | private Object body; |
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| 37 | 1500 | private String messageId = DEFALT_ID_GENERATOR.generateId(); |
| 38 | ||
| 39 | public Object getBody() { |
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| 40 | 2490 | if (body == null) { |
| 41 | 705 | body = createBody(); |
| 42 | } |
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| 43 | 2490 | return body; |
| 44 | } |
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| 45 | ||
| 46 | @SuppressWarnings({"unchecked" }) |
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| 47 | public <T> T getBody(Class<T> type) { |
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| 48 | 255 | Exchange e = getExchange(); |
| 49 | 255 | if (e != null) { |
| 50 | 255 | return e.getContext().getTypeConverter().convertTo(type, getBody()); |
| 51 | } |
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| 52 | 0 | return (T)getBody(); |
| 53 | } |
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| 54 | ||
| 55 | public void setBody(Object body) { |
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| 56 | 963 | this.body = body; |
| 57 | 963 | } |
| 58 | ||
| 59 | public <T> void setBody(Object value, Class<T> type) { |
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| 60 | 0 | Exchange e = getExchange(); |
| 61 | 0 | if (e != null) { |
| 62 | 0 | T v = e.getContext().getTypeConverter().convertTo(type, value); |
| 63 | 0 | if (v != null) { |
| 64 | 0 | value = v; |
| 65 | } |
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| 66 | } |
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| 67 | 0 | setBody(value); |
| 68 | 0 | } |
| 69 | ||
| 70 | public Message copy() { |
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| 71 | 0 | Message answer = newInstance(); |
| 72 | 0 | answer.copyFrom(this); |
| 73 | 0 | return answer; |
| 74 | } |
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| 75 | ||
| 76 | public void copyFrom(Message that) { |
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| 77 | 222 | setMessageId(that.getMessageId()); |
| 78 | 222 | setBody(that.getBody()); |
| 79 | 222 | getHeaders().putAll(that.getHeaders()); |
| 80 | 222 | } |
| 81 | ||
| 82 | public Exchange getExchange() { |
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| 83 | 318 | return exchange; |
| 84 | } |
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| 85 | ||
| 86 | public void setExchange(Exchange exchange) { |
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| 87 | 1500 | this.exchange = exchange; |
| 88 | 1500 | } |
| 89 | ||
| 90 | /** |
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| 91 | * Returns a new instance |
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| 92 | * |
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| 93 | * @return |
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| 94 | */ |
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| 95 | public abstract Message newInstance(); |
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| 96 | ||
| 97 | /** |
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| 98 | * A factory method to allow a provider to lazily create the message body |
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| 99 | * for inbound messages from other sources |
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| 100 | * |
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| 101 | * @return the value of the message body or null if there is no value |
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| 102 | * available |
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| 103 | */ |
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| 104 | protected Object createBody() { |
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| 105 | 672 | return null; |
| 106 | } |
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| 107 | ||
| 108 | /** |
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| 109 | * @return the messageId |
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| 110 | */ |
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| 111 | public String getMessageId() { |
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| 112 | 240 | return this.messageId; |
| 113 | } |
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| 114 | ||
| 115 | /** |
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| 116 | * @param messageId the messageId to set |
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| 117 | */ |
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| 118 | public void setMessageId(String messageId) { |
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| 119 | 222 | this.messageId = messageId; |
| 120 | 222 | } |
| 121 | } |