Coverage Report - org.mule.module.scripting.component.ScriptComponent
 
Classes in this File Line Coverage Branch Coverage Complexity
ScriptComponent
82%
32/39
79%
11/14
2.429
 
 1  
 /*
 2  
  * $Id: ScriptComponent.java 12075 2008-06-17 11:12:10Z 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  
 
 11  
 package org.mule.module.scripting.component;
 12  
 
 13  
 import org.mule.DefaultMuleMessage;
 14  
 import org.mule.api.MuleEvent;
 15  
 import org.mule.api.MuleException;
 16  
 import org.mule.api.MuleMessage;
 17  
 import org.mule.api.lifecycle.InitialisationException;
 18  
 import org.mule.api.routing.NestedRouter;
 19  
 import org.mule.api.routing.NestedRouterCollection;
 20  
 import org.mule.component.AbstractComponent;
 21  
 import org.mule.routing.nested.DefaultNestedRouterCollection;
 22  
 import org.mule.routing.nested.NestedInvocationHandler;
 23  
 import org.mule.transformer.TransformerTemplate;
 24  
 import org.mule.transport.NullPayload;
 25  
 import org.mule.util.ClassUtils;
 26  
 
 27  
 import java.lang.reflect.Proxy;
 28  
 import java.util.Collections;
 29  
 import java.util.HashMap;
 30  
 import java.util.Iterator;
 31  
 import java.util.Map;
 32  
 
 33  
 import javax.script.Bindings;
 34  
 
 35  
 /**
 36  
  * A Script service backed by a JSR-223 compliant script engine such as
 37  
  * Groovy, JavaScript, or Rhino.
 38  
  */
 39  40
 public class ScriptComponent extends AbstractComponent
 40  
 {
 41  
 
 42  40
     protected NestedRouterCollection nestedRouter = new DefaultNestedRouterCollection();
 43  
 
 44  
     private Scriptable script;
 45  
 
 46  
     private Map proxies;
 47  
 
 48  
     //@Override
 49  
     protected void doInitialise() throws InitialisationException
 50  
     {
 51  40
         super.doInitialise();
 52  
         try
 53  
         {
 54  40
             configureComponentBindings();
 55  
         }
 56  0
         catch (MuleException e)
 57  
         {
 58  0
             throw new InitialisationException(e, this);
 59  40
         }
 60  
 
 61  40
     }
 62  
 
 63  
     protected MuleMessage doOnCall(MuleEvent event) throws Exception
 64  
     {
 65  
         // Set up initial script variables.
 66  16
         Bindings bindings = script.getScriptEngine().createBindings();
 67  16
         if (proxies.size() > 0)
 68  
         {
 69  2
             bindings.putAll(proxies);
 70  
         }
 71  16
         script.populateBindings(bindings, event);
 72  16
         Object result = script.runScript(bindings);
 73  
 
 74  16
         if (result != null)
 75  
         {
 76  16
             if (result instanceof MuleMessage)
 77  
             {
 78  0
                 return (MuleMessage) result;
 79  
             }
 80  
             else
 81  
             {
 82  16
                 event.getMessage().applyTransformers(Collections.singletonList(new TransformerTemplate(
 83  
                         new TransformerTemplate.OverwitePayloadCallback(result))));
 84  16
                 return event.getMessage();
 85  
             }
 86  
         }
 87  
         else
 88  
         {
 89  0
             return new DefaultMuleMessage(NullPayload.getInstance());
 90  
         }
 91  
     }
 92  
 
 93  
 
 94  
     public Scriptable getScript()
 95  
     {
 96  0
         return script;
 97  
     }
 98  
 
 99  
     public void setScript(Scriptable script)
 100  
     {
 101  40
         this.script = script;
 102  40
     }
 103  
 
 104  
     public NestedRouterCollection getNestedRouter()
 105  
     {
 106  2
         return nestedRouter;
 107  
     }
 108  
 
 109  
     public void setNestedRouter(NestedRouterCollection nestedRouter)
 110  
     {
 111  0
         this.nestedRouter = nestedRouter;
 112  0
     }
 113  
 
 114  
     protected void configureComponentBindings() throws MuleException
 115  
     {
 116  40
         proxies = new HashMap();
 117  
         // Initialise the nested router and bind the endpoints to the methods using a
 118  
         // Proxy
 119  40
         if (nestedRouter != null && nestedRouter.getRouters().size() > 0)
 120  
         {
 121  2
             for (Iterator it = nestedRouter.getRouters().iterator(); it.hasNext();)
 122  
             {
 123  4
                 NestedRouter nestedRouter = (NestedRouter) it.next();
 124  4
                 String bindingName = ClassUtils.getSimpleName(nestedRouter.getInterface());
 125  4
                 if (proxies.containsKey(bindingName))
 126  
                 {
 127  2
                     Object proxy = proxies.get(bindingName);
 128  2
                     NestedInvocationHandler handler = (NestedInvocationHandler) Proxy.getInvocationHandler(proxy);
 129  2
                     handler.addRouterForInterface(nestedRouter);
 130  2
                 }
 131  
                 else
 132  
                 {
 133  2
                     Object proxy = Proxy.newProxyInstance(getClass().getClassLoader(), new Class[]{nestedRouter.getInterface()},
 134  
                             new NestedInvocationHandler(nestedRouter));
 135  2
                     proxies.put(bindingName, proxy);
 136  
                 }
 137  
 
 138  4
             }
 139  
         }
 140  40
     }
 141  
 }