Coverage Report - org.mule.expression.transformers.BeanBuilderTransformer
 
Classes in this File Line Coverage Branch Coverage Complexity
BeanBuilderTransformer
0%
0/41
0%
0/14
0
 
 1  
 /*
 2  
  * $Id: BeanBuilderTransformer.java 20321 2010-11-24 15:21:24Z dfeist $
 3  
  * --------------------------------------------------------------------------------------
 4  
  * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.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.expression.transformers;
 11  
 
 12  
 import org.mule.api.MuleMessage;
 13  
 import org.mule.api.context.MuleContextAware;
 14  
 import org.mule.api.expression.ExpressionRuntimeException;
 15  
 import org.mule.api.expression.RequiredValueException;
 16  
 import org.mule.api.lifecycle.InitialisationException;
 17  
 import org.mule.api.object.ObjectFactory;
 18  
 import org.mule.api.transformer.TransformerException;
 19  
 import org.mule.config.i18n.CoreMessages;
 20  
 import org.mule.object.PrototypeObjectFactory;
 21  
 import org.mule.transformer.types.DataTypeFactory;
 22  
 import org.mule.util.BeanUtils;
 23  
 
 24  
 import java.lang.reflect.InvocationTargetException;
 25  
 import java.util.HashMap;
 26  
 import java.util.Iterator;
 27  
 import java.util.Map;
 28  
 
 29  
 /**
 30  
  * This transformer uses the returnClass to create the return object and then will populate the bean
 31  
  * with arguments defined as expressions
 32  
  */
 33  0
 public class BeanBuilderTransformer extends AbstractExpressionTransformer
 34  
 {
 35  
     private ObjectFactory beanFactory;
 36  
     private Class<?> beanClass;
 37  
 
 38  
     public Class<?> getBeanClass()
 39  
     {
 40  0
         return beanClass;
 41  
     }
 42  
 
 43  
     public void setBeanClass(Class<?> beanClass)
 44  
     {
 45  0
         this.beanClass = beanClass;
 46  0
     }
 47  
 
 48  
     public ObjectFactory getBeanFactory()
 49  
     {
 50  0
         return beanFactory;
 51  
     }
 52  
 
 53  
     public void setBeanFactory(ObjectFactory beanFactory)
 54  
     {
 55  0
         this.beanFactory = beanFactory;
 56  0
     }
 57  
 
 58  
     /**
 59  
      * Template method were deriving classes can do any initialisation after the
 60  
      * properties have been set on this transformer
 61  
      *
 62  
      * @throws org.mule.api.lifecycle.InitialisationException
 63  
      */
 64  
     @Override
 65  
     public void initialise() throws InitialisationException
 66  
     {
 67  0
         super.initialise();
 68  
 
 69  0
         if(getBeanFactory()==null && getBeanClass()==null)
 70  
         {
 71  0
             throw new InitialisationException(CoreMessages.objectIsNull("beanFactory"), this);
 72  
         }
 73  0
         else if(getBeanClass()!=null)
 74  
         {
 75  0
             setBeanFactory(new PrototypeObjectFactory(getBeanClass()));
 76  
         }
 77  0
         setReturnDataType(DataTypeFactory.create(getBeanFactory().getObjectClass()));
 78  
         //We need to set the MuleContext if we create the factory here
 79  0
         if(getBeanFactory() instanceof MuleContextAware)
 80  
         {
 81  0
             ((MuleContextAware)getBeanFactory()).setMuleContext(muleContext);
 82  
         }
 83  0
     }
 84  
 
 85  
     @Override
 86  
     public Object transformMessage(MuleMessage message, String outputEncoding) throws TransformerException
 87  
     {
 88  
         Object bean;
 89  
         try
 90  
         {
 91  0
             bean = getBeanFactory().getInstance(muleContext);
 92  
         }
 93  0
         catch (Exception e)
 94  
         {
 95  0
             throw new TransformerException(this, e);
 96  0
         }
 97  
 
 98  0
         Map<String, Object> args = new HashMap<String, Object>(arguments.size());
 99  
 
 100  0
         for (Iterator<ExpressionArgument> iterator = arguments.iterator(); iterator.hasNext();)
 101  
         {
 102  0
             ExpressionArgument argument = iterator.next();
 103  0
             Object value = null;
 104  
             try
 105  
             {
 106  0
                 value = argument.evaluate(message);
 107  
             }
 108  0
             catch (RequiredValueException e)
 109  
             {
 110  0
                 logger.warn(e.getMessage());
 111  
             }
 112  0
             catch (ExpressionRuntimeException e)
 113  
             {
 114  0
                 throw new TransformerException(this, e);
 115  0
             }
 116  
 
 117  0
             if (!argument.isOptional() && value == null)
 118  
             {
 119  0
                 throw new TransformerException(CoreMessages.expressionEvaluatorReturnedNull(
 120  
                         argument.getExpressionConfig().getEvaluator(), argument.getExpressionConfig().getExpression()), this);
 121  
 
 122  
             }
 123  0
             args.put(argument.getName(), value);
 124  0
         }
 125  
 
 126  
         try
 127  
         {
 128  0
             BeanUtils.populate(bean, args);
 129  
         }
 130  0
         catch (IllegalAccessException e)
 131  
         {
 132  0
             throw new TransformerException(this, e);
 133  
         }
 134  0
         catch (InvocationTargetException e)
 135  
         {
 136  0
             throw new TransformerException(this, e.getTargetException());
 137  0
         }
 138  
 
 139  0
         return bean;
 140  
     }
 141  
 }