SpringAspectContainer


1   /*
2    * All content copyright (c) 2003-2006 Terracotta, Inc., except as may otherwise be noted in a separate copyright notice.  All rights reserved.
3    */
4   package com.tcspring;
5   
6   import org.springframework.context.ApplicationContext;
7   import org.springframework.context.support.ClassPathXmlApplicationContext;
8   
9   import com.tc.aspectwerkz.AspectContext;
10  import com.tc.aspectwerkz.aspect.AbstractAspectContainer;
11  
12  import java.util.Map  ;
13  
14  /**
15   * Spring custom aspect container, grabs the aspects from the bean factory.
16   * 
17   * @author Jonas Bon&#233;r
18   */
19  public final class SpringAspectContainer extends AbstractAspectContainer {
20  
21    public static final String         BEAN_FACTORY_KEY = "bean-factory";
22  
23    private final ApplicationContext m_beanFactory;
24  
25    /**
26     * Create a new Spring aspect container.
27     * 
28     * @param aspectClass
29     * @param aopSystemClassLoader the classloader of the defining system (not necessary the one of the aspect class)
30     * @param uuid
31     * @param qualifiedName
32     * @param parameters
33     */
34    public SpringAspectContainer(final Class   aspectClass, final ClassLoader   aopSystemClassLoader, final String   uuid,
35                                 final String   qualifiedName, final Map   parameters) {
36      super(aspectClass, aopSystemClassLoader, uuid, qualifiedName, parameters);
37      String   beanConfig = (String  ) parameters.get(BEAN_FACTORY_KEY);
38      if (beanConfig == null) { throw new AssertionError  (); }
39  
40      m_beanFactory = new ClassPathXmlApplicationContext(beanConfig);
41    }
42  
43    /**
44     * Creates a new aspect by getting it from the spring bean factory for the proxy.
45     * 
46     * @param aspectContext
47     * @return an aspect instance
48     */
49    protected Object   createAspect(final AspectContext aspectContext) {
50      return m_beanFactory.getBean(aspectContext.getName());
51    }
52  }
53
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