01: /*
02: * Copyright 2002-2006 the original author or authors.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS,
12: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13: * See the License for the specific language governing permissions and
14: * limitations under the License.
15: */
16:
17: package org.springframework.aop.interceptor;
18:
19: import org.aopalliance.intercept.MethodInvocation;
20:
21: /**
22: * AOP Alliance <code>MethodInterceptor</code> that can be introduced in a chain
23: * to display verbose information about intercepted invocations to the logger.
24: *
25: * <p>Logs full invocation details on method entry and method exit,
26: * including invocation arguments and invocation count. This is only
27: * intended for debugging purposes; use <code>SimpleTraceInterceptor</code>
28: * or <code>CustomizableTraceInterceptor</code> for pure tracing purposes.
29: *
30: * @author Rod Johnson
31: * @author Juergen Hoeller
32: * @see SimpleTraceInterceptor
33: * @see CustomizableTraceInterceptor
34: */
35: public class DebugInterceptor extends SimpleTraceInterceptor {
36:
37: private volatile long count;
38:
39: /**
40: * Create a new DebugInterceptor with a static logger.
41: */
42: public DebugInterceptor() {
43: }
44:
45: /**
46: * Create a new DebugInterceptor with dynamic or static logger,
47: * according to the given flag.
48: * @param useDynamicLogger whether to use a dynamic logger or a static logger
49: * @see #setUseDynamicLogger
50: */
51: public DebugInterceptor(boolean useDynamicLogger) {
52: setUseDynamicLogger(useDynamicLogger);
53: }
54:
55: public Object invoke(MethodInvocation invocation) throws Throwable {
56: synchronized (this ) {
57: this .count++;
58: }
59: return super .invoke(invocation);
60: }
61:
62: protected String getInvocationDescription(
63: MethodInvocation invocation) {
64: return invocation + "; count=" + this .count;
65: }
66:
67: /**
68: * Return the number of times this interceptor has been invoked.
69: */
70: public long getCount() {
71: return this .count;
72: }
73:
74: /**
75: * Reset the invocation count to zero.
76: */
77: public synchronized void resetCount() {
78: this .count = 0;
79: }
80:
81: }
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