Coverage Report - org.mule.util.expression.MuleContextExpressionEvaluator
 
Classes in this File Line Coverage Branch Coverage Complexity
MuleContextExpressionEvaluator
88%
23/26
90%
18/20
5.4
 
 1  
 /*
 2  
  * $Id: MuleContextExpressionEvaluator.java 11457 2008-03-20 23:21:50Z rossmason $
 3  
  * --------------------------------------------------------------------------------------
 4  
  * Copyright (c) MuleSource, Inc.  All rights reserved.  http://www.mulesource.com
 5  
  *
 6  
  * The software in this package is published under the terms of the CPAL v1.0
 7  
  * license, a copy of which has been included with this distribution in the
 8  
  * LICENSE.txt file.
 9  
  */
 10  
 package org.mule.util.expression;
 11  
 
 12  
 import org.mule.MuleServer;
 13  
 import org.mule.RequestContext;
 14  
 import org.mule.api.MuleContext;
 15  
 import org.mule.api.MuleEventContext;
 16  
 import org.mule.api.MuleRuntimeException;
 17  
 import org.mule.config.i18n.CoreMessages;
 18  
 
 19  
 /**
 20  
  * This property extractor exposes mule context information as expressions. This can be context information about
 21  
  * the server itself such as the server id or about the current request such as the current service name.
 22  
  * <ul>
 23  
  * <li>serviceName - returns the name of the service currently processing the event.</li>
 24  
  * <li>modelName - returns the name of the model that hosts the current service</li>
 25  
  * <li>inboundEndpoint - returns the URI string of the endpoint that received the current messgae.</li>
 26  
  * <li>serverId - the Mule instance server Id.</li>
 27  
  * <li>clusterId - the Mule instance cluster Id.</li>
 28  
  * <li>domainId - the Mule instance domain Id.</li>
 29  
  * <li>workingDir - Mule's working directory.</li>
 30  
  * <li>homeDir - Mule's home directory</li>
 31  
  * </ul>
 32  
  */
 33  1150
 public class MuleContextExpressionEvaluator implements ExpressionEvaluator
 34  
 {
 35  
     public static final String NAME = "mule";
 36  
 
 37  
     /**
 38  
      * Extracts a single property from the message
 39  
      *
 40  
      * @param expression the property expression or expression
 41  
      * @param message    the message to extract from
 42  
      * @return the result of the extraction or null if the property was not found
 43  
      */
 44  
     public Object evaluate(String expression, Object message)
 45  
     {
 46  36
         if (expression.equals("serviceName"))
 47  
         {
 48  6
             return getEventContext().getService().getName();
 49  
         }
 50  30
         else if (expression.equals("modelName"))
 51  
         {
 52  4
             return getEventContext().getService().getModel().getName();
 53  
         }
 54  26
         else if (expression.equals("inboundEndpoint"))
 55  
         {
 56  4
             return getEventContext().getEndpointURI();
 57  
         }
 58  22
         else if (expression.equals("serverId"))
 59  
         {
 60  6
             return getMuleContext().getConfiguration().getId();
 61  
         }
 62  16
         else if (expression.equals("clusterId"))
 63  
         {
 64  4
             return getMuleContext().getConfiguration().getClusterId();
 65  
         }
 66  12
         else if (expression.equals("domainId"))
 67  
         {
 68  4
             return getMuleContext().getConfiguration().getDomainId();
 69  
         }
 70  8
         else if (expression.equals("workingDir"))
 71  
         {
 72  4
             return getMuleContext().getConfiguration().getWorkingDirectory();
 73  
         }
 74  4
         else if (expression.equals("homeDir"))
 75  
         {
 76  0
             return getMuleContext().getConfiguration().getMuleHomeDirectory();
 77  
         }
 78  
         else
 79  
         {
 80  4
             throw new IllegalArgumentException(expression);
 81  
         }
 82  
     }
 83  
 
 84  
     protected MuleContext getMuleContext()
 85  
     {
 86  18
         if(MuleServer.getMuleContext()==null)
 87  
         {
 88  0
              throw new MuleRuntimeException(CoreMessages.objectIsNull("MuleContext"));
 89  
         }
 90  
         else
 91  
         {
 92  18
             return MuleServer.getMuleContext();
 93  
         }
 94  
     }
 95  
 
 96  
     protected MuleEventContext getEventContext()
 97  
     {
 98  14
         if(RequestContext.getEventContext()==null)
 99  
         {
 100  2
              throw new MuleRuntimeException(CoreMessages.objectIsNull("MuleEventContext"));
 101  
         }
 102  
         else
 103  
         {
 104  12
             return RequestContext.getEventContext();
 105  
         }
 106  
     }
 107  
 
 108  
     /**
 109  
      * Gts the name of the object
 110  
      *
 111  
      * @return the name of the object
 112  
      */
 113  
     public String getName()
 114  
     {
 115  1146
         return NAME;
 116  
     }
 117  
 
 118  
     /**
 119  
      * Sets the name of the object
 120  
      *
 121  
      * @param name the name of the object
 122  
      */
 123  
     public void setName(String name)
 124  
     {
 125  0
         throw new UnsupportedOperationException("setName");
 126  
     }
 127  
 }