Coverage Report - org.mule.module.ibeans.spi.support.DynamicRequestEndpoint
 
Classes in this File Line Coverage Branch Coverage Complexity
DynamicRequestEndpoint
0%
0/52
0%
0/32
0
DynamicRequestEndpoint$NullInboundEndpoint
0%
0/8
N/A
0
 
 1  
 /*
 2  
  * $Id: DynamicRequestEndpoint.java 19980 2010-10-21 11:27:14Z rossmason $
 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.module.ibeans.spi.support;
 11  
 
 12  
 import org.mule.DefaultMuleMessage;
 13  
 import org.mule.MessageExchangePattern;
 14  
 import org.mule.api.MessagingException;
 15  
 import org.mule.api.MuleContext;
 16  
 import org.mule.api.MuleEvent;
 17  
 import org.mule.api.MuleException;
 18  
 import org.mule.api.MuleMessage;
 19  
 import org.mule.api.MuleRuntimeException;
 20  
 import org.mule.api.config.MuleProperties;
 21  
 import org.mule.api.construct.FlowConstruct;
 22  
 import org.mule.api.endpoint.EndpointBuilder;
 23  
 import org.mule.api.endpoint.EndpointURI;
 24  
 import org.mule.api.endpoint.InboundEndpoint;
 25  
 import org.mule.api.endpoint.MalformedEndpointException;
 26  
 import org.mule.api.expression.ExpressionManager;
 27  
 import org.mule.api.processor.MessageProcessor;
 28  
 import org.mule.api.transport.Connector;
 29  
 import org.mule.config.i18n.CoreMessages;
 30  
 import org.mule.endpoint.DefaultInboundEndpoint;
 31  
 import org.mule.endpoint.DynamicOutboundEndpoint;
 32  
 import org.mule.endpoint.DynamicURIInboundEndpoint;
 33  
 import org.mule.endpoint.MuleEndpointURI;
 34  
 import org.mule.endpoint.URIBuilder;
 35  
 import org.mule.transport.service.TransportFactory;
 36  
 import org.mule.transport.service.TransportFactoryException;
 37  
 import org.mule.util.TemplateParser;
 38  
 
 39  
 import java.util.Collections;
 40  
 import java.util.HashMap;
 41  
 import java.util.List;
 42  
 import java.util.Map;
 43  
 
 44  
 import org.apache.commons.logging.Log;
 45  
 import org.apache.commons.logging.LogFactory;
 46  
 
 47  
 /**
 48  
  * A dynamic request endpoint is used in conjunction with the {@link org.ibeans.annotation.Call} annotation when there are no {@link org.ibeans.annotation.param.Body},
 49  
  * {@link org.ibeans.annotation.param.BodyParam} or {@link org.ibeans.annotation.param.HeaderParam} annotations
 50  
  * on a method and allows a dynamic {@link org.mule.api.endpoint.InboundEndpoint} to be created.  This endpoint is then used via the Mule {@link org.mule.api.transport.MessageRequester}
 51  
  * interface to make a specific request to a transport for a message.
 52  
  */
 53  
 public class DynamicRequestEndpoint extends DynamicURIInboundEndpoint
 54  
 {
 55  
     public static final String EVAL_PARAM_PROPERTY = "eval.param";
 56  
     /**
 57  
      * logger used by this class
 58  
      */
 59  0
     protected transient final Log logger = LogFactory.getLog(DynamicRequestEndpoint.class);
 60  
     private static final long serialVersionUID = 8861985949279708638L;
 61  
 
 62  0
     protected TemplateParser parser = TemplateParser.createCurlyBracesStyleParser();
 63  
 
 64  
     /**
 65  
      * The URI template used to construct the actual URI to send the message to.
 66  
      */
 67  
     protected String uriTemplate;
 68  
 
 69  
     private EndpointBuilder builder;
 70  
 
 71  
    public DynamicRequestEndpoint(MuleContext muleContext, EndpointBuilder builder, String uriTemplate) throws MalformedEndpointException
 72  
     {
 73  0
         super(new NullInboundEndpoint(muleContext));
 74  0
         this.builder = builder;
 75  0
         this.uriTemplate = uriTemplate;
 76  0
         validateUriTemplate(uriTemplate);
 77  0
     }
 78  
 
 79  
     protected void validateUriTemplate(String uri) throws MalformedEndpointException
 80  
     {
 81  0
         if (uri.indexOf(":") > uri.indexOf(ExpressionManager.DEFAULT_EXPRESSION_PREFIX))
 82  
         {
 83  0
             throw new MalformedEndpointException(CoreMessages.dynamicEndpointsMustSpecifyAScheme(), uri);
 84  
         }
 85  0
     }
 86  
 
 87  
     protected Map<String, Object> getPropertiesForTemplate(MuleMessage message)
 88  
     {
 89  0
         Map<String, Object> props = new HashMap<String, Object>();
 90  
         // Also add the endpoint properties so that users can set fallback values
 91  
         // when the property is not set on the event
 92  0
         props.putAll(this.getProperties());
 93  0
         for (String propertyKey : message.getOutboundPropertyNames())
 94  
         {
 95  0
             props.put(propertyKey, message.getOutboundProperty(propertyKey));
 96  
         }
 97  0
         return props;
 98  
     }
 99  
 
 100  
     protected EndpointURI getEndpointURIForMessage(MuleEvent event) throws MessagingException
 101  
     {
 102  0
         if (logger.isDebugEnabled())
 103  
         {
 104  0
             logger.debug("Uri before parsing is: " + uriTemplate);
 105  
         }
 106  
 
 107  0
         Map<String, Object> props = getPropertiesForTemplate(event.getMessage());
 108  
 
 109  0
         String newUriString = parser.parse(props, uriTemplate);
 110  0
         Object evalParam = props.get(EVAL_PARAM_PROPERTY);
 111  0
         if (evalParam != null)
 112  
         {
 113  0
             newUriString = parseURIString(newUriString, new DefaultMuleMessage(evalParam, getMuleContext()));
 114  
         }
 115  
         else
 116  
         {
 117  0
             newUriString = parseURIString(newUriString, event.getMessage());
 118  
         }
 119  0
         if (logger.isDebugEnabled())
 120  
         {
 121  0
             logger.debug("Uri after parsing is: " + newUriString);
 122  
         }
 123  
 
 124  
         try
 125  
         {
 126  0
             setEndpointURI(new MuleEndpointURI(newUriString, getMuleContext()));
 127  
 
 128  0
             if (!newUriString.startsWith(getEndpointURI().getFullScheme()))
 129  
             {
 130  0
                 throw new MessagingException(CoreMessages.schemeCannotChangeForRouter(
 131  
                         this.getEndpointURI().getScheme(), getEndpointURI().getScheme()), event);
 132  
             }
 133  0
             getEndpointURI().initialise();
 134  0
             return getEndpointURI();
 135  
         }
 136  0
         catch (Exception e)
 137  
         {
 138  0
             throw new MessagingException(
 139  
                     CoreMessages.templateCausedMalformedEndpoint(uriTemplate, newUriString),
 140  
                     event, e);
 141  
         }
 142  
 
 143  
     }
 144  
 
 145  
     protected String parseURIString(String uri, MuleMessage message)
 146  
     {
 147  0
         return this.getMuleContext().getExpressionManager().parse(uri, message, true);
 148  
     }
 149  
 
 150  
     public MuleMessage request(long timeout, MuleEvent event) throws Exception
 151  
     {
 152  0
         EndpointURI uri = getEndpointURIForMessage(event);
 153  
 
 154  0
         if (endpoint instanceof NullInboundEndpoint)
 155  
         {
 156  0
             builder.setURIBuilder(new URIBuilder(uri));
 157  0
             endpoint = builder.buildInboundEndpoint();
 158  
         }
 159  0
         InboundEndpoint inboundEndpoint = new DynamicURIInboundEndpoint(endpoint, uri);
 160  
 
 161  0
         if (event.getMessage().getInvocationProperty(MuleProperties.MULE_CREDENTIALS_PROPERTY) != null)
 162  
         {
 163  0
             inboundEndpoint.getProperties().put(MuleProperties.MULE_CREDENTIALS_PROPERTY, event.getMessage().getInvocationProperty(MuleProperties.MULE_CREDENTIALS_PROPERTY));
 164  
         }
 165  0
         return super.request(timeout);
 166  
     }
 167  
 
 168  
     @Override
 169  
     public boolean equals(Object o)
 170  
     {
 171  0
         if (this == o)
 172  
         {
 173  0
             return true;
 174  
         }
 175  0
         if (o == null || getClass() != o.getClass())
 176  
         {
 177  0
             return false;
 178  
         }
 179  0
         if (!super.equals(o))
 180  
         {
 181  0
             return false;
 182  
         }
 183  
 
 184  0
         DynamicRequestEndpoint that = (DynamicRequestEndpoint) o;
 185  
 
 186  0
         return !(uriTemplate != null ? !uriTemplate.equals(that.uriTemplate) : that.uriTemplate != null);
 187  
 
 188  
     }
 189  
 
 190  
     @Override
 191  
     public int hashCode()
 192  
     {
 193  0
         int result = 0;
 194  0
         result = 31 * result + (uriTemplate != null ? uriTemplate.hashCode() : 0);
 195  0
         return result;
 196  
     }
 197  
 
 198  
     protected static class NullInboundEndpoint extends DefaultInboundEndpoint implements InboundEndpoint
 199  
     {
 200  
         NullInboundEndpoint(MuleContext muleContext)
 201  
         {
 202  0
             super(createDynamicConnector(muleContext), null, null, new HashMap(), null, true, MessageExchangePattern.ONE_WAY, 0, "started", null, null, muleContext, null, null, null, null, true, null);
 203  0
         }
 204  
 
 205  
         @Override
 206  
         public MessageProcessor createMessageProcessorChain(FlowConstruct flowContruct) throws MuleException
 207  
         {
 208  0
             throw new UnsupportedOperationException("createMessageProcessorChain");
 209  
         }
 210  
 
 211  
         public List<String> getResponseProperties()
 212  
         {
 213  0
             return Collections.emptyList();
 214  
         }
 215  
 
 216  
         @SuppressWarnings("unused")
 217  
         public MuleEvent process(MuleEvent event) throws MuleException
 218  
         {
 219  0
             throw new UnsupportedOperationException("process");
 220  
         }
 221  
 
 222  
         static Connector createDynamicConnector(MuleContext muleContext)
 223  
         {
 224  
             try
 225  
             {
 226  0
                 return new TransportFactory(muleContext).createConnector(DynamicOutboundEndpoint.DYNAMIC_URI_PLACEHOLDER);
 227  
             }
 228  0
             catch (TransportFactoryException e)
 229  
             {
 230  
                 //This should never happen
 231  0
                 throw new MuleRuntimeException(e);
 232  
             }
 233  
         }
 234  
     }
 235  
 
 236  
 
 237  
 }