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  
  * 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.expression.transformers;
 8  
 
 9  
 import org.mule.api.MuleMessage;
 10  
 import org.mule.api.context.MuleContextAware;
 11  
 import org.mule.api.expression.ExpressionRuntimeException;
 12  
 import org.mule.api.expression.RequiredValueException;
 13  
 import org.mule.api.lifecycle.InitialisationException;
 14  
 import org.mule.api.object.ObjectFactory;
 15  
 import org.mule.api.transformer.TransformerException;
 16  
 import org.mule.config.i18n.CoreMessages;
 17  
 import org.mule.object.PrototypeObjectFactory;
 18  
 import org.mule.transformer.types.DataTypeFactory;
 19  
 import org.mule.util.BeanUtils;
 20  
 
 21  
 import java.lang.reflect.InvocationTargetException;
 22  
 import java.util.HashMap;
 23  
 import java.util.Iterator;
 24  
 import java.util.Map;
 25  
 
 26  
 /**
 27  
  * This transformer uses the returnClass to create the return object and then will populate the bean
 28  
  * with arguments defined as expressions
 29  
  */
 30  0
 public class BeanBuilderTransformer extends AbstractExpressionTransformer
 31  
 {
 32  
     private ObjectFactory beanFactory;
 33  
     private Class<?> beanClass;
 34  
 
 35  
     public Class<?> getBeanClass()
 36  
     {
 37  0
         return beanClass;
 38  
     }
 39  
 
 40  
     public void setBeanClass(Class<?> beanClass)
 41  
     {
 42  0
         this.beanClass = beanClass;
 43  0
     }
 44  
 
 45  
     public ObjectFactory getBeanFactory()
 46  
     {
 47  0
         return beanFactory;
 48  
     }
 49  
 
 50  
     public void setBeanFactory(ObjectFactory beanFactory)
 51  
     {
 52  0
         this.beanFactory = beanFactory;
 53  0
     }
 54  
 
 55  
     /**
 56  
      * Template method were deriving classes can do any initialisation after the
 57  
      * properties have been set on this transformer
 58  
      *
 59  
      * @throws org.mule.api.lifecycle.InitialisationException
 60  
      */
 61  
     @Override
 62  
     public void initialise() throws InitialisationException
 63  
     {
 64  0
         super.initialise();
 65  
 
 66  0
         if(getBeanFactory()==null && getBeanClass()==null)
 67  
         {
 68  0
             throw new InitialisationException(CoreMessages.objectIsNull("beanFactory"), this);
 69  
         }
 70  0
         else if(getBeanClass()!=null)
 71  
         {
 72  0
             setBeanFactory(new PrototypeObjectFactory(getBeanClass()));
 73  
         }
 74  0
         setReturnDataType(DataTypeFactory.create(getBeanFactory().getObjectClass()));
 75  
         //We need to set the MuleContext if we create the factory here
 76  0
         if(getBeanFactory() instanceof MuleContextAware)
 77  
         {
 78  0
             ((MuleContextAware)getBeanFactory()).setMuleContext(muleContext);
 79  
         }
 80  0
     }
 81  
 
 82  
     @Override
 83  
     public Object transformMessage(MuleMessage message, String outputEncoding) throws TransformerException
 84  
     {
 85  
         Object bean;
 86  
         try
 87  
         {
 88  0
             bean = getBeanFactory().getInstance(muleContext);
 89  
         }
 90  0
         catch (Exception e)
 91  
         {
 92  0
             throw new TransformerException(this, e);
 93  0
         }
 94  
 
 95  0
         Map<String, Object> args = new HashMap<String, Object>(arguments.size());
 96  
 
 97  0
         for (Iterator<ExpressionArgument> iterator = arguments.iterator(); iterator.hasNext();)
 98  
         {
 99  0
             ExpressionArgument argument = iterator.next();
 100  0
             Object value = null;
 101  
             try
 102  
             {
 103  0
                 value = argument.evaluate(message);
 104  
             }
 105  0
             catch (RequiredValueException e)
 106  
             {
 107  0
                 logger.warn(e.getMessage());
 108  
             }
 109  0
             catch (ExpressionRuntimeException e)
 110  
             {
 111  0
                 throw new TransformerException(this, e);
 112  0
             }
 113  
 
 114  0
             if (!argument.isOptional() && value == null)
 115  
             {
 116  0
                 throw new TransformerException(CoreMessages.expressionEvaluatorReturnedNull(
 117  
                         argument.getExpressionConfig().getEvaluator(), argument.getExpressionConfig().getExpression()), this);
 118  
 
 119  
             }
 120  0
             args.put(argument.getName(), value);
 121  0
         }
 122  
 
 123  
         try
 124  
         {
 125  0
             BeanUtils.populate(bean, args);
 126  
         }
 127  0
         catch (IllegalAccessException e)
 128  
         {
 129  0
             throw new TransformerException(this, e);
 130  
         }
 131  0
         catch (InvocationTargetException e)
 132  
         {
 133  0
             throw new TransformerException(this, e.getTargetException());
 134  0
         }
 135  
 
 136  0
         return bean;
 137  
     }
 138  
 }