01: /*
02: * Copyright 2002-2007 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.framework.adapter;
18:
19: import java.io.Serializable;
20:
21: import org.aopalliance.intercept.MethodInterceptor;
22: import org.aopalliance.intercept.MethodInvocation;
23:
24: import org.springframework.aop.MethodBeforeAdvice;
25: import org.springframework.util.Assert;
26:
27: /**
28: * Interceptor to wrap am {@link org.springframework.aop.MethodBeforeAdvice}.
29: * Used internally by the AOP framework; application developers should not need
30: * to use this class directly.
31: *
32: * @author Rod Johnson
33: */
34: public class MethodBeforeAdviceInterceptor implements
35: MethodInterceptor, Serializable {
36:
37: private MethodBeforeAdvice advice;
38:
39: /**
40: * Create a new MethodBeforeAdviceInterceptor for the given advice.
41: * @param advice the MethodBeforeAdvice to wrap
42: */
43: public MethodBeforeAdviceInterceptor(MethodBeforeAdvice advice) {
44: Assert.notNull(advice, "Advice must not be null");
45: this .advice = advice;
46: }
47:
48: public Object invoke(MethodInvocation mi) throws Throwable {
49: this.advice.before(mi.getMethod(), mi.getArguments(), mi
50: .getThis());
51: return mi.proceed();
52: }
53:
54: }
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