Coverage report

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org.apache.jetspeed.services.information.InformationProviderServiceImpl
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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.services.information;
 18   
 
 19   
 import java.util.Map;
 20   
 
 21   
 import javax.servlet.ServletConfig;
 22   
 import javax.servlet.ServletRequest;
 23   
 import javax.servlet.http.HttpServletRequest;
 24   
 import javax.servlet.http.HttpServletRequestWrapper;
 25   
 
 26   
 import org.apache.pluto.factory.Factory;
 27   
 import org.apache.pluto.services.information.DynamicInformationProvider;
 28   
 import org.apache.pluto.services.information.InformationProviderService;
 29   
 import org.apache.pluto.services.information.StaticInformationProvider;
 30   
 
 31   
 import org.apache.jetspeed.aggregator.CurrentWorkerContext;
 32   
 
 33   
 /**
 34   
  * Factory class for getting Information Provider access
 35   
  *
 36   
  * @author <a href="mailto:taylor@apache.org">David Sean Taylor</a>
 37   
  * @version $Id: InformationProviderServiceImpl.java 587813 2007-10-24 08:20:39Z woonsan $
 38   
  */
 39   
 public class InformationProviderServiceImpl implements Factory, InformationProviderService
 40   
 {
 41   
     private javax.servlet.ServletConfig servletConfig;
 42   
     private final StaticInformationProvider staticInformationProvider;
 43   
 
 44   
     public InformationProviderServiceImpl(StaticInformationProvider staticInformationProvider, ServletConfig config)
 45  0 
     {
 46  0 
         this.staticInformationProvider = staticInformationProvider;
 47   
 
 48  0 
     }
 49   
 
 50   
     public void init(ServletConfig config, Map properties) throws Exception
 51   
     {
 52   
         // does nothing at all
 53  0 
     }
 54   
 
 55   
     public StaticInformationProvider getStaticProvider()
 56   
     {
 57  0 
         return staticInformationProvider;
 58   
     }
 59   
 
 60   
     public DynamicInformationProvider getDynamicProvider(HttpServletRequest request)
 61   
     {
 62  0 
         DynamicInformationProvider provider = null;
 63   
 
 64  0 
         boolean isParallel = CurrentWorkerContext.getParallelRenderingMode();
 65  0 
         ServletRequest servletRequest = null;
 66   
 
 67  0 
         if (isParallel)
 68   
         {
 69   
             // request should be an instance of org.apache.jetspeed.engine.servlet.ServletRequestImpl
 70   
             // unwrap the real request instance provided by the container to synchronize
 71  0 
             servletRequest = ((HttpServletRequestWrapper) request).getRequest();
 72   
 
 73   
             // if it is not an instance of HttpServletRequestWrapper any more, then it is not AdjustedSRTServletRequest instance.
 74  0 
             if (servletRequest instanceof HttpServletRequestWrapper)
 75   
             {
 76  0 
                 servletRequest = ((HttpServletRequestWrapper) servletRequest).getRequest();
 77   
             }
 78   
 
 79  0 
             synchronized (servletRequest)
 80   
             {
 81  0 
                 provider = (DynamicInformationProvider) servletRequest.getAttribute("org.apache.jetspeed.engine.core.DynamicInformationProvider");
 82  0 
             }
 83   
         }
 84   
         else
 85   
         {
 86  0 
             provider = (DynamicInformationProvider) request.getAttribute("org.apache.jetspeed.engine.core.DynamicInformationProvider");
 87   
         }
 88   
 
 89  0 
         if (provider == null)
 90   
         {
 91  0 
             provider = new DynamicInformationProviderImpl(request, servletConfig);
 92   
 
 93  0 
             if (isParallel)
 94   
             {
 95  0 
                 synchronized (servletRequest)
 96   
                 {
 97  0 
                     servletRequest.setAttribute("org.apache.jetspeed.engine.core.DynamicInformationProvider", provider);
 98  0 
                 }
 99   
             }
 100   
             else
 101   
             {
 102  0 
                 request.setAttribute("org.apache.jetspeed.engine.core.DynamicInformationProvider", provider);
 103   
             }
 104   
         }
 105   
 
 106  0 
         return provider;
 107   
     }
 108   
 
 109   
     /**
 110   
      * <p>
 111   
      * destroy
 112   
      * </p>
 113   
      *
 114   
      * @see org.apache.pluto.factory.Factory#destroy()
 115   
      * @throws java.lang.Exception
 116   
      */
 117   
     public void destroy() throws Exception
 118   
     {
 119   
        // also does nothing
 120  0 
     }
 121   
 }

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