Coverage Report - org.apache.camel.impl.MessageSupport
 
Classes in this File Line Coverage Branch Coverage Complexity
MessageSupport
67% 
50% 
0
 
 1  
 /**
 2  
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3  
  * contributor license agreements.  See the NOTICE file distributed with
 4  
  * this work for additional information regarding copyright ownership.
 5  
  * The ASF licenses this file to You under the Apache License, Version 2.0
 6  
  * (the "License"); you may not use this file except in compliance with
 7  
  * the License.  You may obtain a copy of the License at
 8  
  *
 9  
  *      http://www.apache.org/licenses/LICENSE-2.0
 10  
  *
 11  
  * Unless required by applicable law or agreed to in writing, software
 12  
  * distributed under the License is distributed on an "AS IS" BASIS,
 13  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  * See the License for the specific language governing permissions and
 15  
  * limitations under the License.
 16  
  */
 17  
 package org.apache.camel.impl;
 18  
 
 19  
 import org.apache.camel.Exchange;
 20  
 import org.apache.camel.Message;
 21  
 import org.apache.camel.util.UuidGenerator;
 22  
 
 23  
 /**
 24  
  * A base class for implementation inheritence providing the core
 25  
  * {@link Message} body handling features but letting the derived class deal
 26  
  * with headers.
 27  
  * 
 28  
  * Unless a specific provider wishes to do something particularly clever with
 29  
  * headers you probably want to just derive from {@link DefaultMessage}
 30  
  * 
 31  
  * @version $Revision: 564677 $
 32  
  */
 33  1500
 public abstract class MessageSupport implements Message {
 34  3
     private static final UuidGenerator DEFALT_ID_GENERATOR = new UuidGenerator();
 35  
     private Exchange exchange;
 36  
     private Object body;
 37  1500
     private String messageId = DEFALT_ID_GENERATOR.generateId();
 38  
 
 39  
     public Object getBody() {
 40  2490
         if (body == null) {
 41  705
             body = createBody();
 42  
         }
 43  2490
         return body;
 44  
     }
 45  
 
 46  
     @SuppressWarnings({"unchecked" })
 47  
     public <T> T getBody(Class<T> type) {
 48  255
         Exchange e = getExchange();
 49  255
         if (e != null) {
 50  255
             return e.getContext().getTypeConverter().convertTo(type, getBody());
 51  
         }
 52  0
         return (T)getBody();
 53  
     }
 54  
 
 55  
     public void setBody(Object body) {
 56  963
         this.body = body;
 57  963
     }
 58  
 
 59  
     public <T> void setBody(Object value, Class<T> type) {
 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  
             }
 66  
         }
 67  0
         setBody(value);
 68  0
     }
 69  
 
 70  
     public Message copy() {
 71  0
         Message answer = newInstance();
 72  0
         answer.copyFrom(this);
 73  0
         return answer;
 74  
     }
 75  
 
 76  
     public void copyFrom(Message that) {
 77  222
         setMessageId(that.getMessageId());
 78  222
         setBody(that.getBody());
 79  222
         getHeaders().putAll(that.getHeaders());
 80  222
     }
 81  
 
 82  
     public Exchange getExchange() {
 83  318
         return exchange;
 84  
     }
 85  
 
 86  
     public void setExchange(Exchange exchange) {
 87  1500
         this.exchange = exchange;
 88  1500
     }
 89  
 
 90  
     /**
 91  
      * Returns a new instance
 92  
      * 
 93  
      * @return
 94  
      */
 95  
     public abstract Message newInstance();
 96  
 
 97  
     /**
 98  
      * A factory method to allow a provider to lazily create the message body
 99  
      * for inbound messages from other sources
 100  
      * 
 101  
      * @return the value of the message body or null if there is no value
 102  
      *         available
 103  
      */
 104  
     protected Object createBody() {
 105  672
         return null;
 106  
     }
 107  
 
 108  
     /**
 109  
      * @return the messageId
 110  
      */
 111  
     public String getMessageId() {
 112  240
         return this.messageId;
 113  
     }
 114  
 
 115  
     /**
 116  
      * @param messageId the messageId to set
 117  
      */
 118  
     public void setMessageId(String messageId) {
 119  222
         this.messageId = messageId;
 120  222
     }
 121  
 }