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1   /*
2    * $Id: MuleComponentProviderFactory.java 19270 2010-09-01 10:37:41Z dirk.olmes $
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.module.jersey;
12  
13  import org.mule.api.MuleContext;
14  import org.mule.api.component.JavaComponent;
15  
16  import com.sun.jersey.core.spi.component.ComponentContext;
17  import com.sun.jersey.core.spi.component.ioc.IoCComponentProvider;
18  import com.sun.jersey.core.spi.component.ioc.IoCComponentProviderFactory;
19  import com.sun.jersey.core.spi.component.ioc.IoCInstantiatedComponentProvider;
20  
21  import java.util.List;
22  
23  public class MuleComponentProviderFactory implements IoCComponentProviderFactory
24  {
25  
26      private final List<JavaComponent> components;
27      private final MuleContext muleContext;
28  
29      public MuleComponentProviderFactory(MuleContext muleContext, List<JavaComponent> components)
30      {
31          this.muleContext = muleContext;
32          this.components = components;
33      }
34  
35      public IoCComponentProvider getComponentProvider(Class<?> cls)
36      {
37          for (JavaComponent c : components)
38          {
39              if (c.getObjectType().isAssignableFrom(cls))
40              {
41                  return getComponentProvider(null, cls);
42              }
43          }
44          return null;
45      }
46  
47      public IoCComponentProvider getComponentProvider(ComponentContext ctx, final Class<?> cls)
48      {
49          final JavaComponent selected = getSelectedComponent(cls);
50          
51          if (selected == null)
52          {
53              return null;
54          }
55          
56          return new IoCInstantiatedComponentProvider()
57          {
58              public Object getInjectableInstance(Object o)
59              {
60                  return o;
61              }
62  
63              public Object getInstance()
64              {
65                  try
66                  {
67                      return selected.getObjectFactory().getInstance(muleContext);
68                  }
69                  catch (Exception e)
70                  {
71                      throw new RuntimeException(e);
72                  }
73              }
74          };
75      }
76  
77      private JavaComponent getSelectedComponent(final Class<?> cls)
78      {
79          JavaComponent selected = null;
80          for (JavaComponent c : components)
81          {
82              if (c.getObjectType().isAssignableFrom(cls))
83              {
84                  selected = c;
85              }
86          }
87          return selected;
88      }
89  
90  }