Coverage report

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org.apache.jetspeed.container.invoker.LocalPortletInvoker
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 1   
 /*
 2   
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3   
  * contributor license agreements.  See the NOTICE file distributed with
 4   
  * this work for additional information regarding copyright ownership.
 5   
  * The ASF licenses this file to You under the Apache License, Version 2.0
 6   
  * (the "License"); you may not use this file except in compliance with
 7   
  * the License.  You may obtain a copy of the License at
 8   
  *
 9   
  *      http://www.apache.org/licenses/LICENSE-2.0
 10   
  *
 11   
  * Unless required by applicable law or agreed to in writing, software
 12   
  * distributed under the License is distributed on an "AS IS" BASIS,
 13   
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14   
  * See the License for the specific language governing permissions and
 15   
  * limitations under the License.
 16   
  */
 17   
 package org.apache.jetspeed.container.invoker;
 18   
 
 19   
 import java.io.IOException;
 20   
 
 21   
 import javax.portlet.ActionRequest;
 22   
 import javax.portlet.ActionResponse;
 23   
 import javax.portlet.PortletException;
 24   
 import javax.portlet.PortletRequest;
 25   
 import javax.portlet.PortletResponse;
 26   
 import javax.portlet.RenderRequest;
 27   
 import javax.portlet.RenderResponse;
 28   
 import javax.portlet.UnavailableException;
 29   
 import javax.servlet.ServletConfig;
 30   
 import javax.servlet.ServletContext;
 31   
 import javax.servlet.ServletRequest;
 32   
 
 33   
 import org.apache.commons.logging.Log;
 34   
 import org.apache.commons.logging.LogFactory;
 35   
 import org.apache.jetspeed.PortalReservedParameters;
 36   
 import org.apache.jetspeed.container.ContainerConstants;
 37   
 import org.apache.jetspeed.container.PortletRequestContext;
 38   
 import org.apache.jetspeed.factory.PortletFactory;
 39   
 import org.apache.jetspeed.factory.PortletInstance;
 40   
 import org.apache.jetspeed.om.common.portlet.PortletApplication;
 41   
 import org.apache.jetspeed.request.RequestContext;
 42   
 import org.apache.pluto.om.portlet.PortletDefinition;
 43   
 
 44   
 /**
 45   
  * LocalPortletInvoker invokes local (internal) portlet applications.
 46   
  * Local portlet applications are stored within the Jetspeed Portlet application.
 47   
  * They are not separate web applications; but are stored under Jetspeed's
 48   
  * WEB-INF/apps directory.
 49   
  * <h3>Sample Configuration</h3>
 50   
  * <pre>
 51   
  * <code>
 52   
  * factory.invoker.local = org.apache.jetspeed.container.invoker.LocalPortletInvoker
 53   
  * factory.invoker.local.pool.size = 50
 54   
  * </code>
 55   
  * </pre>
 56   
  * @author <a href="mailto:taylor@apache.org">David Sean Taylor</a>
 57   
  * @version $Id: LocalPortletInvoker.java 565870 2007-08-14 19:40:03Z taylor $
 58   
  */
 59   
 public class LocalPortletInvoker implements JetspeedPortletInvoker
 60   
 {
 61  0 
     private final static Log log = LogFactory.getLog(LocalPortletInvoker.class);
 62   
 
 63   
     protected PortletFactory portletFactory;
 64   
     protected ServletContext jetspeedContext;
 65   
     protected ServletConfig jetspeedConfig;
 66   
     protected PortletDefinition portletDefinition;
 67  0 
     protected boolean activated = false;
 68   
 
 69   
     /* (non-Javadoc)
 70   
      * @see org.apache.jetspeed.container.invoker.JetspeedPortletInvoker#activate(PortletFactory,org.apache.pluto.om.portlet.PortletDefinition, javax.servlet.ServletConfig)
 71   
      */
 72   
     public void activate(PortletFactory portletFactory, PortletDefinition portletDefinition, ServletConfig servletConfig)
 73   
     {
 74  0 
         this.portletFactory = portletFactory;
 75  0 
         this.jetspeedConfig = servletConfig;
 76  0 
         jetspeedContext = servletConfig.getServletContext();
 77  0 
         this.portletDefinition = portletDefinition;
 78  0 
         activated = true;
 79  0 
     }
 80   
 
 81   
     /* (non-Javadoc)
 82   
      * @see org.apache.jetspeed.container.invoker.JetspeedPortletInvoker#passivate()
 83   
      */
 84   
     public void passivate()
 85   
     {
 86  0 
         activated = false;
 87  0 
     }
 88   
 
 89   
     /* (non-Javadoc)
 90   
      * @see org.apache.jetspeed.container.invoker.JetspeedPortletInvoker#isActivated()
 91   
      */
 92   
     public boolean isActivated()
 93   
     {
 94  0 
         return activated;
 95   
     }
 96   
 
 97   
     public LocalPortletInvoker()
 98  0 
     {
 99  0 
         activated = false;
 100  0 
     }
 101   
 
 102   
     /* (non-Javadoc)
 103   
      * @see org.apache.pluto.invoker.PortletInvoker#action(javax.portlet.ActionRequest, javax.portlet.ActionResponse)
 104   
      */
 105   
     public void action(ActionRequest request, ActionResponse response)
 106   
         throws PortletException, IOException
 107   
     {
 108  0 
         invoke(request, response, ContainerConstants.METHOD_ACTION);
 109  0 
     }
 110   
 
 111   
     /* (non-Javadoc)
 112   
      * @see org.apache.pluto.invoker.PortletInvoker#render(javax.portlet.RenderRequest, javax.portlet.RenderResponse)
 113   
      */
 114   
     public void render(RenderRequest request, RenderResponse response)
 115   
         throws PortletException, IOException
 116   
     {
 117  0 
         invoke(request, response, ContainerConstants.METHOD_RENDER);
 118  0 
     }
 119   
 
 120   
     /* (non-Javadoc)
 121   
      * @see org.apache.pluto.invoker.PortletInvoker#load(javax.portlet.PortletRequest, javax.portlet.RenderResponse)
 122   
      */
 123   
     public void load(PortletRequest request, RenderResponse response)
 124   
         throws PortletException
 125   
     {
 126   
         try
 127   
         {
 128  0 
             invoke(request, response, ContainerConstants.METHOD_NOOP);
 129   
         }
 130  0 
         catch (IOException e)
 131   
         {
 132  0 
             log.error("LocalPortletInvokerImpl.load() - Error while dispatching portlet.", e);
 133  0 
             throw new PortletException(e);
 134  0 
         }
 135  0 
     }
 136   
 
 137   
 
 138   
     /**
 139   
      * Invokes the specific request denoted by the <code>method</code> parameter on a portlet.
 140   
      * The portlet is invoked with a direct method call on the portlet. It is not invoked in another web application.
 141   
      * This requires manipulation of the current thread's classpath.
 142   
      *
 143   
      * @param portletRequest
 144   
      * @param portletResponse
 145   
      * @param methodID
 146   
      * @throws PortletException
 147   
      * @throws IOException
 148   
      */
 149   
     protected void invoke(PortletRequest portletRequest, PortletResponse portletResponse, Integer method)
 150   
             throws PortletException, IOException
 151   
     {
 152  0 
         ClassLoader paClassLoader = portletFactory
 153   
                 .getPortletApplicationClassLoader((PortletApplication) portletDefinition
 154   
                         .getPortletApplicationDefinition());
 155  0 
         PortletInstance portletInstance = portletFactory.getPortletInstance(jetspeedContext, portletDefinition);
 156   
 
 157  0 
         if (method == ContainerConstants.METHOD_NOOP)
 158   
         {
 159  0 
             return;
 160   
         }
 161   
 
 162   
         // gather all required data from request and response
 163  0 
         ServletRequest servletRequest = ((javax.servlet.http.HttpServletRequestWrapper) portletRequest).getRequest();
 164   
 
 165  0 
         ClassLoader oldLoader = Thread.currentThread().getContextClassLoader();
 166   
         try
 167   
         {
 168  0 
             PortletRequestContext.createContext(portletDefinition, portletInstance, portletRequest, portletResponse);
 169   
 
 170  0 
             servletRequest.setAttribute(ContainerConstants.PORTLET_CONFIG, portletInstance.getConfig());
 171  0 
             servletRequest.setAttribute(ContainerConstants.PORTLET_REQUEST, portletRequest);
 172  0 
             servletRequest.setAttribute(ContainerConstants.PORTLET_RESPONSE, portletResponse);
 173  0 
             RequestContext requestContext = (RequestContext) servletRequest
 174   
                     .getAttribute(PortalReservedParameters.REQUEST_CONTEXT_ATTRIBUTE);
 175  0 
             servletRequest
 176   
                     .setAttribute(ContainerConstants.PORTAL_CONTEXT, requestContext.getRequest().getContextPath());
 177   
 
 178  0 
             Thread.currentThread().setContextClassLoader(paClassLoader);
 179   
 
 180  0 
             if (method == ContainerConstants.METHOD_ACTION)
 181   
             {
 182  0 
                 ActionRequest actionRequest = (ActionRequest) portletRequest;
 183  0 
                 ActionResponse actionResponse = (ActionResponse) portletResponse;
 184   
 
 185  0 
                 portletInstance.processAction(actionRequest, actionResponse);
 186  0 
             }
 187  0 
             else if (method == ContainerConstants.METHOD_RENDER)
 188   
             {
 189  0 
                 RenderRequest renderRequest = (RenderRequest) portletRequest;
 190  0 
                 RenderResponse renderResponse = (RenderResponse) portletResponse;
 191  0 
                 renderResponse.setContentType(requestContext.getMimeType());
 192  0 
                 portletInstance.render(renderRequest, renderResponse);
 193   
             }
 194   
         }
 195  0 
         catch (Throwable t)
 196   
         {
 197  0 
             if ( t instanceof UnavailableException )
 198   
             {
 199   
                 // take it out of service
 200   
                 try
 201   
                 {
 202  0 
                     portletInstance.destroy();
 203   
                 }
 204  0 
                 catch (Throwable ignore)
 205   
                 {
 206   
                     // never mind, it won't be used anymore
 207  0 
                 }
 208   
             }
 209  0 
             if ( t instanceof PortletException )
 210   
             {
 211  0 
                 throw (PortletException)t;
 212   
             }
 213  0 
             if ( t instanceof IOException )
 214   
             {
 215  0 
                 throw (IOException)t;
 216   
             }
 217   
             else
 218   
             {
 219  0 
                 throw new PortletException(t);
 220   
             }
 221   
         }
 222   
         finally
 223   
         {
 224  0 
             PortletRequestContext.clearContext();
 225  0 
             servletRequest.removeAttribute(ContainerConstants.PORTLET_CONFIG);
 226  0 
             servletRequest.removeAttribute(ContainerConstants.PORTLET_REQUEST);
 227  0 
             servletRequest.removeAttribute(ContainerConstants.PORTLET_RESPONSE);
 228  0 
             servletRequest.removeAttribute(ContainerConstants.PORTAL_CONTEXT);
 229   
 
 230  0 
             Thread.currentThread().setContextClassLoader(oldLoader);
 231  0 
         }
 232  0 
     }
 233   
 
 234   
     /* (non-Javadoc)
 235   
      * @see org.apache.jetspeed.container.invoker.JetspeedPortletInvoker#activate(PortletFactory,org.apache.pluto.om.portlet.PortletDefinition, javax.servlet.ServletConfig, java.lang.String)
 236   
      */
 237   
     public void activate(PortletFactory portletFactory, PortletDefinition portletDefinition, ServletConfig servletConfig, String servletMappingName)
 238   
     {
 239  0 
         activate(portletFactory, portletDefinition, servletConfig);
 240  0 
     }
 241   
 
 242   
 }

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