Coverage Report - org.mule.construct.SimpleService
 
Classes in this File Line Coverage Branch Coverage Complexity
SimpleService
0%
0/43
0%
0/12
0
SimpleService$1
N/A
N/A
0
SimpleService$Type
0%
0/6
N/A
0
SimpleService$Type$1
0%
0/7
0%
0/2
0
SimpleService$Type$2
0%
0/6
0%
0/2
0
SimpleService$Type$3
0%
0/4
N/A
0
 
 1  
 /*
 2  
  * $Id: SimpleService.java 20320 2010-11-24 15:03:31Z 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  
 
 11  
 package org.mule.construct;
 12  
 
 13  
 import org.mule.MessageExchangePattern;
 14  
 import org.mule.api.MuleContext;
 15  
 import org.mule.api.MuleException;
 16  
 import org.mule.api.MuleRuntimeException;
 17  
 import org.mule.api.component.Component;
 18  
 import org.mule.api.component.JavaComponent;
 19  
 import org.mule.api.construct.FlowConstructInvalidException;
 20  
 import org.mule.api.context.MuleContextAware;
 21  
 import org.mule.api.endpoint.InboundEndpoint;
 22  
 import org.mule.api.processor.MessageProcessor;
 23  
 import org.mule.api.processor.MessageProcessorBuilder;
 24  
 import org.mule.api.processor.MessageProcessorChainBuilder;
 25  
 import org.mule.api.source.MessageSource;
 26  
 import org.mule.config.i18n.MessageFactory;
 27  
 import org.mule.construct.processor.FlowConstructStatisticsMessageProcessor;
 28  
 import org.mule.interceptor.LoggingInterceptor;
 29  
 import org.mule.interceptor.ProcessingTimeInterceptor;
 30  
 import org.mule.util.ClassUtils;
 31  
 
 32  
 import java.lang.reflect.Method;
 33  
 import java.util.List;
 34  
 
 35  
 import edu.emory.mathcs.backport.java.util.Collections;
 36  
 
 37  
 /**
 38  
  * In-out SOA-style simple service, with no outbound router. Always fully
 39  
  * synchronous.
 40  
  */
 41  0
 public class SimpleService extends AbstractFlowConstruct
 42  
 {
 43  0
     public enum Type
 44  
     {
 45  
         /**
 46  
          * Expose a JAX-WS annoted component as a web service. The CXF module is
 47  
          * required to have this working.
 48  
          */
 49  0
         JAX_WS
 50  
         {
 51  
             @Override
 52  
             public void validate(Component component) throws FlowConstructInvalidException
 53  
             {
 54  0
                 if (!(component instanceof JavaComponent))
 55  
                 {
 56  0
                     throw new FlowConstructInvalidException(
 57  
                         MessageFactory.createStaticMessage("SimpleService can only expose instances of JAX-WS annotated JavaComponent instances. You provided a: "
 58  
                                                            + component.getClass().getName()));
 59  
                 }
 60  0
             }
 61  
 
 62  
             @Override
 63  
             public void configureComponentMessageProcessor(MuleContext muleContext,
 64  
                                                            MessageProcessorChainBuilder builder,
 65  
                                                            Component component)
 66  
             {
 67  0
                 builder.chain(newJaxWsComponentMessageProcessor(muleContext, getComponentClass(component)));
 68  0
                 builder.chain(component);
 69  0
             }
 70  
         },
 71  
 
 72  
         /**
 73  
          * Expose a JAX-RS annoted component as a web service. The Jersey module is
 74  
          * required to have this working.
 75  
          */
 76  0
         JAX_RS
 77  
         {
 78  
             @Override
 79  
             public void validate(Component component) throws FlowConstructInvalidException
 80  
             {
 81  0
                 if (!(component instanceof JavaComponent))
 82  
                 {
 83  0
                     throw new FlowConstructInvalidException(
 84  
                         MessageFactory.createStaticMessage("SimpleService can only expose instances of JAX-RS annotated JavaComponent instances. You provided a: "
 85  
                                                            + component.getClass().getName()));
 86  
                 }
 87  0
             }
 88  
 
 89  
             @Override
 90  
             public void configureComponentMessageProcessor(MuleContext muleContext,
 91  
                                                            MessageProcessorChainBuilder builder,
 92  
                                                            Component component)
 93  
             {
 94  0
                 builder.chain(newJaxRsComponentWrapper(muleContext, component));
 95  0
             }
 96  
         },
 97  
 
 98  
         /**
 99  
          * Pass the inbound messages unaltered to the component.
 100  
          */
 101  0
         DIRECT
 102  
         {
 103  
             @Override
 104  
             public void validate(Component component) throws FlowConstructInvalidException
 105  
             {
 106  
                 // NOOP
 107  0
             }
 108  
 
 109  
             @Override
 110  
             public void configureComponentMessageProcessor(MuleContext muleContext,
 111  
                                                            MessageProcessorChainBuilder builder,
 112  
                                                            Component component)
 113  
             {
 114  0
                 builder.chain(component);
 115  0
             }
 116  
         };
 117  
 
 118  
         public abstract void validate(Component component) throws FlowConstructInvalidException;
 119  
 
 120  
         public abstract void configureComponentMessageProcessor(MuleContext muleContext,
 121  
                                                                 MessageProcessorChainBuilder builder,
 122  
                                                                 Component component);
 123  
 
 124  
         public static Type fromString(String string)
 125  
         {
 126  0
             String mepString = string.toUpperCase().replace('-', '_');
 127  0
             return Type.valueOf(mepString);
 128  
         }
 129  
     }
 130  
 
 131  
     private final Component component;
 132  
     private final Type type;
 133  
 
 134  
     public SimpleService(String name,
 135  
                          MuleContext muleContext,
 136  
                          MessageSource messageSource,
 137  
                          Component component,
 138  
                          Type type) throws MuleException
 139  
     {
 140  0
         super(name, muleContext);
 141  
 
 142  0
         if (messageSource == null)
 143  
         {
 144  0
             throw new FlowConstructInvalidException(
 145  
                 MessageFactory.createStaticMessage("messageSource can't be null on: " + this.toString()));
 146  
         }
 147  
 
 148  0
         if (component == null)
 149  
         {
 150  0
             throw new FlowConstructInvalidException(
 151  
                 MessageFactory.createStaticMessage("component can't be null on: " + this.toString()));
 152  
         }
 153  
 
 154  0
         if (type == null)
 155  
         {
 156  0
             throw new FlowConstructInvalidException(
 157  
                 MessageFactory.createStaticMessage("type can't be null on: " + this.toString()));
 158  
         }
 159  
 
 160  0
         this.messageSource = messageSource;
 161  0
         this.component = component;
 162  0
         this.type = type;
 163  0
     }
 164  
 
 165  
     public Component getComponent()
 166  
     {
 167  0
         return component;
 168  
     }
 169  
 
 170  
     @Override
 171  
     protected void configureMessageProcessors(MessageProcessorChainBuilder builder)
 172  
     {
 173  0
         builder.chain(new ProcessingTimeInterceptor());
 174  0
         builder.chain(new LoggingInterceptor());
 175  0
         builder.chain(new FlowConstructStatisticsMessageProcessor());
 176  0
         type.configureComponentMessageProcessor(muleContext, builder, component);
 177  0
     }
 178  
 
 179  
     @Override
 180  
     protected void validateConstruct() throws FlowConstructInvalidException
 181  
     {
 182  0
         super.validateConstruct();
 183  
 
 184  0
         if ((messageSource instanceof InboundEndpoint)
 185  
             && (!((InboundEndpoint) messageSource).getExchangePattern().equals(
 186  
                 MessageExchangePattern.REQUEST_RESPONSE)))
 187  
         {
 188  0
             throw new FlowConstructInvalidException(
 189  
                 MessageFactory.createStaticMessage("SimpleService only works with a request-response inbound endpoint."),
 190  
                 this);
 191  
         }
 192  
 
 193  0
         type.validate(component);
 194  0
     }
 195  
 
 196  
     private static Class<?> getComponentClass(Component component)
 197  
     {
 198  0
         if (component instanceof JavaComponent)
 199  
         {
 200  0
             return ((JavaComponent) component).getObjectFactory().getObjectClass();
 201  
         }
 202  
 
 203  0
         return component.getClass();
 204  
     }
 205  
 
 206  
     private static MessageProcessor newJaxWsComponentMessageProcessor(MuleContext muleContext,
 207  
                                                                       Class<?> componentClass)
 208  
     {
 209  
         try
 210  
         {
 211  0
             MessageProcessorBuilder wsmpb = (MessageProcessorBuilder) ClassUtils.instanciateClass("org.mule.module.cxf.builder.WebServiceMessageProcessorBuilder");
 212  
 
 213  0
             Method setServiceClassMethod = ClassUtils.getMethod(wsmpb.getClass(), "setServiceClass",
 214  
                 new Class<?>[]{Class.class});
 215  
 
 216  0
             setServiceClassMethod.invoke(wsmpb, componentClass);
 217  
 
 218  0
             Method setFrontendMethod = ClassUtils.getMethod(wsmpb.getClass(), "setFrontend",
 219  
                 new Class<?>[]{String.class});
 220  
 
 221  0
             setFrontendMethod.invoke(wsmpb, "jaxws");
 222  
 
 223  0
             ((MuleContextAware) wsmpb).setMuleContext(muleContext);
 224  
 
 225  0
             return wsmpb.build();
 226  
         }
 227  0
         catch (Exception e)
 228  
         {
 229  0
             throw new MuleRuntimeException(
 230  
                 MessageFactory.createStaticMessage("Failed to configure the required web service infrastructure: are you missing the Mule CXF Module?"),
 231  
                 e);
 232  
         }
 233  
     }
 234  
 
 235  
     private static Component newJaxRsComponentWrapper(MuleContext muleContext, Component component)
 236  
     {
 237  
         try
 238  
         {
 239  0
             Component jrc = (Component) ClassUtils.instanciateClass("org.mule.module.jersey.JerseyResourcesComponent");
 240  
 
 241  0
             Method setComponentsMethod = ClassUtils.getMethod(jrc.getClass(), "setComponents",
 242  
                 new Class<?>[]{List.class});
 243  
 
 244  0
             setComponentsMethod.invoke(jrc, Collections.singletonList(component));
 245  
 
 246  0
             ((MuleContextAware) jrc).setMuleContext(muleContext);
 247  
 
 248  0
             return jrc;
 249  
         }
 250  0
         catch (Exception e)
 251  
         {
 252  0
             throw new MuleRuntimeException(
 253  
                 MessageFactory.createStaticMessage("Failed to configure the required web service infrastructure: are you missing the Mule Jersey Module?"),
 254  
                 e);
 255  
         }
 256  
     }
 257  
 
 258  
     @Override
 259  
     public String getConstructType()
 260  
     {
 261  0
         return "Simple-Service";
 262  
     }
 263  
 }