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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   
8   package org.mule.endpoint.inbound;
9   
10  import org.mule.api.MessagingException;
11  import org.mule.api.MuleEvent;
12  import org.mule.api.MuleMessage;
13  import org.mule.api.config.MuleProperties;
14  import org.mule.api.endpoint.InboundEndpoint;
15  import org.mule.api.processor.MessageProcessor;
16  import org.mule.api.transport.PropertyScope;
17  import org.mule.config.i18n.CoreMessages;
18  import org.mule.util.ObjectUtils;
19  
20  import javax.activation.MimeType;
21  import javax.activation.MimeTypeParseException;
22  
23  /**
24   * Verify that the inbound mime type is acceptable by this endpoint.
25   */
26  public class InboundEndpointMimeTypeCheckingMessageProcessor implements MessageProcessor
27  {
28      private InboundEndpoint endpoint;
29  
30      public InboundEndpointMimeTypeCheckingMessageProcessor(InboundEndpoint endpoint)
31      {
32          this.endpoint = endpoint;
33      }
34  
35      public MuleEvent process(MuleEvent event) throws MessagingException
36      {
37          String endpointMimeType = endpoint.getMimeType();
38          if (endpointMimeType != null)
39          {
40              MuleMessage message = event.getMessage();
41              String contentType = message.getProperty(MuleProperties.CONTENT_TYPE_PROPERTY, PropertyScope.INBOUND);
42              if (contentType == null)
43              {
44                  contentType = message.getProperty(MuleProperties.CONTENT_TYPE_PROPERTY, PropertyScope.OUTBOUND);
45              }
46              if (contentType == null)
47              {
48                  message.setProperty(MuleProperties.CONTENT_TYPE_PROPERTY, endpointMimeType, PropertyScope.INBOUND);
49              }
50              else
51              {
52                  try
53                  {
54                      MimeType mt = new MimeType(contentType);
55                      String messageMimeType = mt.getPrimaryType() + "/" + mt.getSubType();
56                      if (!messageMimeType.equals(endpointMimeType))
57                      {
58                          throw new MessagingException(
59                              CoreMessages.unexpectedMIMEType(messageMimeType, endpointMimeType), event);
60                      }
61                  }
62                  catch (MimeTypeParseException ex)
63                  {
64                      throw new MessagingException(CoreMessages.illegalMIMEType(contentType), event, ex);
65                  }
66              }
67          }
68  
69          return event;
70      }
71  
72      @Override
73      public String toString()
74      {
75          return ObjectUtils.toString(this);
76      }
77  }