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Java > Open Source Codes > org > apache > cayenne > instrument > CayenneInstrumentationFactory


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19 package org.apache.cayenne.instrument;
20
21 import java.lang.instrument.Instrumentation JavaDoc;
22 import java.lang.reflect.Method JavaDoc;
23
24 /**
25  * An instrumentation factory based on CayenneAgent.
26  *
27  * @since 3.0
28  * @author Andrus Adamchik
29  */
30 public class CayenneInstrumentationFactory implements InstrumentationFactory {
31
32     static final String JavaDoc AGENT_CLASS = "org.apache.cayenne.instrument.CayenneAgent";
33
34     public Instrumentation JavaDoc getInstrumentation() {
35         try {
36             Class JavaDoc agent = Class.forName(AGENT_CLASS, false, Thread
37                     .currentThread()
38                     .getContextClassLoader());
39
40             Method JavaDoc getInstrumentation = agent.getDeclaredMethod("getInstrumentation");
41             return (Instrumentation JavaDoc) getInstrumentation.invoke(null);
42         }
43         catch (Throwable JavaDoc th) {
44             return null;
45         }
46     }
47 }
48
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