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1   /*
2    * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
3    * The software in this package is published under the terms of the CPAL v1.0
4    * license, a copy of which has been included with this distribution in the
5    * LICENSE.txt file.
6    */
7   package org.mule.endpoint;
8   
9   import org.mule.DefaultMuleEvent;
10  import org.mule.MessageExchangePattern;
11  import org.mule.api.MuleContext;
12  import org.mule.api.MuleEvent;
13  import org.mule.api.MuleException;
14  import org.mule.api.config.MuleProperties;
15  import org.mule.api.construct.FlowConstruct;
16  import org.mule.api.construct.FlowConstructAware;
17  import org.mule.api.context.MuleContextAware;
18  import org.mule.api.endpoint.EndpointMessageProcessorChainFactory;
19  import org.mule.api.endpoint.EndpointURI;
20  import org.mule.api.endpoint.OutboundEndpoint;
21  import org.mule.api.lifecycle.Initialisable;
22  import org.mule.api.processor.MessageProcessor;
23  import org.mule.api.retry.RetryPolicyTemplate;
24  import org.mule.api.transaction.TransactionConfig;
25  import org.mule.api.transport.Connector;
26  import org.mule.transport.AbstractConnector;
27  import org.mule.util.StringUtils;
28  
29  import java.util.ArrayList;
30  import java.util.Arrays;
31  import java.util.List;
32  import java.util.Map;
33  
34  public class DefaultOutboundEndpoint extends AbstractEndpoint implements OutboundEndpoint
35  {
36      private static final long serialVersionUID = 8860985949279708638L;
37  
38      private List<String> responseProperties;
39  
40      public DefaultOutboundEndpoint(Connector connector,
41                                     EndpointURI endpointUri,
42                                     String name,
43                                     Map properties,
44                                     TransactionConfig transactionConfig,
45                                     boolean deleteUnacceptedMessage,
46                                     MessageExchangePattern messageExchangePattern,
47                                     int responseTimeout,
48                                     String initialState,
49                                     String endpointEncoding,
50                                     String endpointBuilderName,
51                                     MuleContext muleContext,
52                                     RetryPolicyTemplate retryPolicyTemplate,
53                                     String responsePropertiesList,
54                                     EndpointMessageProcessorChainFactory messageProcessorsFactory,
55                                     List <MessageProcessor> messageProcessors,
56                                     List <MessageProcessor> responseMessageProcessors,
57                                     boolean disableTransportTransformer,
58                                     String endpointMimeType)
59      {
60          super(connector, endpointUri, name, properties, transactionConfig, 
61                  deleteUnacceptedMessage, messageExchangePattern, responseTimeout, initialState,
62                  endpointEncoding, endpointBuilderName, muleContext, retryPolicyTemplate, 
63                  messageProcessorsFactory, messageProcessors, responseMessageProcessors, disableTransportTransformer, endpointMimeType);
64  
65          responseProperties = new ArrayList<String>();
66          // Propagate the Correlation-related properties from the previous message by default (see EE-1613).
67          responseProperties.add(MuleProperties.MULE_CORRELATION_ID_PROPERTY);
68          responseProperties.add(MuleProperties.MULE_CORRELATION_GROUP_SIZE_PROPERTY);
69          responseProperties.add(MuleProperties.MULE_CORRELATION_SEQUENCE_PROPERTY);
70          responseProperties.add(MuleProperties.MULE_SESSION_PROPERTY);
71          // Add any additional properties specified by the user.
72          String[] props = StringUtils.splitAndTrim(responsePropertiesList, ",");
73          if (props != null)
74          {
75              responseProperties.addAll(Arrays.asList(props));
76          }
77      }
78  
79      public List<String> getResponseProperties()
80      {
81          return responseProperties;
82      }
83  
84      public MuleEvent process(MuleEvent event) throws MuleException
85      {
86          // Update event endpoint for outbound endpoint
87          MuleEvent outboundEvent = event;
88          if ((event.getEndpoint() == null || !event.getEndpoint().equals(this)))
89          {
90              outboundEvent = new DefaultMuleEvent(event.getMessage(), this, event.getSession(), null, event.getProcessingTime(), null);
91          }
92          MuleEvent resultEvent = getMessageProcessorChain(event.getFlowConstruct()).process(outboundEvent);
93          // Avoid loss replyHandler, replyToDestination
94          if (resultEvent != null)
95          {
96              resultEvent = new DefaultMuleEvent(resultEvent.getMessage(),event);
97          }
98          return resultEvent;
99      }
100 
101     @Override
102     protected MessageProcessor createMessageProcessorChain(FlowConstruct flowContruct) throws MuleException
103     {
104         EndpointMessageProcessorChainFactory factory = getMessageProcessorsFactory();
105         MessageProcessor chain = factory.createOutboundMessageProcessorChain(this, flowContruct,
106             ((AbstractConnector) getConnector()).createDispatcherMessageProcessor(this));
107 
108         if (chain instanceof MuleContextAware)
109         {
110             ((MuleContextAware) chain).setMuleContext(getMuleContext());
111         }
112         if (chain instanceof FlowConstructAware)
113         {
114             ((FlowConstructAware) chain).setFlowConstruct(flowContruct);
115         }
116         if (chain instanceof Initialisable)
117         {
118             ((Initialisable) chain).initialise();
119         }
120         
121         return chain;
122     }
123 }