ProxyFactoryInterceptor


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15    * Lesser General Public License for more details.
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22  package org.jboss.test.naming.interceptors;
23  
24  import javax.naming.InitialContext  ;
25  import org.jboss.mx.interceptor.AbstractInterceptor;
26  import org.jboss.mx.server.Invocation;
27  import org.jboss.logging.Logger;
28  import org.jnp.interfaces.NamingContext;
29  import org.jnp.interfaces.Naming;
30  
31  /** An interceptor that replaces any NamingContext values returned with the
32   * proxy found under the JNDI binding given by the proxyName.
33   *
34   * @author Scott.Stark@jboss.org
35   * @version $Revision: 37406 $
36   */
37  public class ProxyFactoryInterceptor
38     extends AbstractInterceptor
39  {
40     private static Logger log = Logger.getLogger(ProxyFactoryInterceptor.class);
41     private String   proxyName;
42     private Naming proxy;
43  
44     public void setProxyName(String   proxyName)
45     {
46        this.proxyName = proxyName;
47     }
48  
49     // Interceptor overrides -----------------------------------------
50     public Object   invoke(Invocation invocation) throws Throwable  
51     {
52        String   opName = invocation.getName();
53        log.info("invoke, opName="+opName);
54        Object   value = invocation.nextInterceptor().invoke(invocation);
55        if( value instanceof NamingContext )
56        {
57           initNamingProxy();
58           NamingContext ctx = (NamingContext) value;
59           ctx.setNaming(proxy);
60        }
61        return value;
62     }
63  
64     private void initNamingProxy()
65        throws Throwable  
66     {
67        if( proxy != null )
68           return;
69  
70        try
71        {
72           InitialContext   ctx = new InitialContext  ();
73           proxy = (Naming) ctx.lookup(proxyName);
74        }
75        catch(Exception   e)
76        {
77           log.error("Failed to lookup: "+proxyName, e);
78           throw e;
79        }
80     }
81  }
82
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