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Java > Open Source Codes > org > jboss > aop > advice > CFlowInterceptor


1 /*
2   * JBoss, Home of Professional Open Source
3   * Copyright 2005, JBoss Inc., and individual contributors as indicated
4   * by the @authors tag. See the copyright.txt in the distribution for a
5   * full listing of individual contributors.
6   *
7   * This is free software; you can redistribute it and/or modify it
8   * under the terms of the GNU Lesser General Public License as
9   * published by the Free Software Foundation; either version 2.1 of
10   * the License, or (at your option) any later version.
11   *
12   * This software is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15   * Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public
18   * License along with this software; if not, write to the Free
19   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21   */
22 package org.jboss.aop.advice;
23
24 import org.jboss.aop.joinpoint.Invocation;
25 import org.jboss.aop.pointcut.CFlowMatcher;
26 import org.jboss.aop.pointcut.ast.ASTCFlowExpression;
27
28 /**
29  * Comment
30  *
31  * @author <a HREF="mailto:bill@jboss.org">Bill Burke</a>
32  * @version $Revision: 37406 $
33  *
34  **/
35 public class CFlowInterceptor implements Interceptor
36 {
37    Interceptor[] chain;
38    ASTCFlowExpression expr;
39    String JavaDoc cflowString;
40
41    public CFlowInterceptor(String JavaDoc cflowString, ASTCFlowExpression expr, Interceptor[] chain)
42    {
43       this.chain = chain;
44       this.expr = expr;
45       this.cflowString = cflowString;
46    }
47    public String JavaDoc getName()
48    {
49       return "CFlowInterceptor";
50    }
51
52    public String JavaDoc getCFlowString()
53    {
54       return cflowString;
55    }
56
57    public Object JavaDoc invoke(Invocation invocation) throws Throwable JavaDoc
58    {
59       if (new CFlowMatcher().matches(expr, invocation))
60       {
61          Invocation wrapper = invocation.getWrapper(chain);
62          return wrapper.invokeNext();
63       }
64       // no match for cflow so just go down chain
65 return invocation.invokeNext();
66    }
67 }
68
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