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1   /*
2    * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
3    * The software in this package is published under the terms of the CPAL v1.0
4    * license, a copy of which has been included with this distribution in the
5    * LICENSE.txt file.
6    */
7   package org.mule.module.jersey;
8   
9   import org.mule.api.MuleContext;
10  import org.mule.api.component.JavaComponent;
11  import org.mule.api.object.ObjectFactory;
12  import org.mule.component.BindingUtils;
13  
14  import com.sun.jersey.core.spi.component.ComponentContext;
15  import com.sun.jersey.core.spi.component.ioc.IoCComponentProvider;
16  import com.sun.jersey.core.spi.component.ioc.IoCComponentProviderFactory;
17  import com.sun.jersey.core.spi.component.ioc.IoCInstantiatedComponentProvider;
18  
19  import java.util.List;
20  
21  public class MuleComponentProviderFactory implements IoCComponentProviderFactory
22  {
23  
24      private final List<JavaComponent> components;
25      private final MuleContext muleContext;
26  
27      public MuleComponentProviderFactory(MuleContext muleContext, List<JavaComponent> components)
28      {
29          this.muleContext = muleContext;
30          this.components = components;
31      }
32  
33      public IoCComponentProvider getComponentProvider(Class<?> cls)
34      {
35          for (JavaComponent c : components)
36          {
37              if (c.getObjectType().isAssignableFrom(cls))
38              {
39                  return getComponentProvider(null, cls);
40              }
41          }
42          return null;
43      }
44  
45      public IoCComponentProvider getComponentProvider(ComponentContext ctx, final Class<?> cls)
46      {
47          final JavaComponent selected = getSelectedComponent(cls);
48          
49          if (selected == null)
50          {
51              return null;
52          }
53          
54          return new IoCInstantiatedComponentProvider()
55          {
56              public Object getInjectableInstance(Object o)
57              {
58                  return o;
59              }
60  
61              public Object getInstance()
62              {
63                  try
64                  {
65                      ObjectFactory objectFactory = selected.getObjectFactory();
66                      Object instance = objectFactory.getInstance(muleContext);
67                      BindingUtils.configureBinding(selected, instance);
68  
69                      return instance;
70                  }
71                  catch (Exception e)
72                  {
73                      throw new RuntimeException(e);
74                  }
75              }
76          };
77      }
78  
79      private JavaComponent getSelectedComponent(final Class<?> cls)
80      {
81          JavaComponent selected = null;
82          for (JavaComponent c : components)
83          {
84              if (c.getObjectType().isAssignableFrom(cls))
85              {
86                  selected = c;
87              }
88          }
89          return selected;
90      }
91  
92  }