01: // Copyright 2004, 2005 The Apache Software Foundation
02: //
03: // Licensed under the Apache License, Version 2.0 (the "License");
04: // you may not use this file except in compliance with the License.
05: // You may obtain a copy of the License at
06: //
07: // http://www.apache.org/licenses/LICENSE-2.0
08: //
09: // Unless required by applicable law or agreed to in writing, software
10: // distributed under the License is distributed on an "AS IS" BASIS,
11: // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12: // See the License for the specific language governing permissions and
13: // limitations under the License.
14:
15: package org.apache.examples.impl;
16:
17: import java.lang.reflect.InvocationHandler;
18: import java.lang.reflect.Proxy;
19: import java.util.List;
20:
21: import org.apache.commons.logging.Log;
22: import org.apache.hivemind.InterceptorStack;
23: import org.apache.hivemind.ServiceInterceptorFactory;
24: import org.apache.hivemind.internal.Module;
25:
26: /**
27: * Creates a simple, proxy-based interceptor that mimics most (but not all) of the behavior
28: * of {@link org.apache.hivemind.service.impl.LoggingInterceptorFactory}.
29: *
30: * @author Howard Lewis Ship
31: */
32: public class ProxyLoggingInterceptorFactory implements
33: ServiceInterceptorFactory {
34:
35: public void createInterceptor(InterceptorStack stack,
36: Module invokingModule, List parameters) {
37: Log log = stack.getServiceLog();
38:
39: InvocationHandler handler = new ProxyLoggingInvocationHandler(
40: log, stack.peek());
41:
42: Object interceptor = Proxy.newProxyInstance(invokingModule
43: .getClassResolver().getClassLoader(),
44: new Class[] { stack.getServiceInterface() }, handler);
45:
46: stack.push(interceptor);
47: }
48: }
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