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Java > Open Source Codes > org > jboss > invocation > http > interfaces > ClientMethodInterceptorHA


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.invocation.http.interfaces;
23
24 import java.io.Externalizable JavaDoc;
25 import java.lang.reflect.Method JavaDoc;
26
27 import org.jboss.invocation.Invocation;
28 import org.jboss.proxy.Interceptor;
29
30 /** Handle toString, equals, hashCode locally on the client.
31  *
32  * @author Scott.Stark@jboss.org
33  * @version $Revision: 37459 $
34  */
35 public class ClientMethodInterceptorHA extends Interceptor
36    implements Externalizable JavaDoc
37 {
38    /** The serialVersionUID
39     * @since 1.1.4.1
40     */
41    private static final long serialVersionUID = 7633261444020820792L;
42
43    /** Handle methods locally on the client
44     *
45     * @param mi
46     * @return
47     * @throws Throwable
48     */
49    public Object JavaDoc invoke(Invocation mi) throws Throwable JavaDoc
50    {
51       Method JavaDoc m = mi.getMethod();
52       String JavaDoc methodName = m.getName();
53       HttpInvokerProxyHA proxy = (HttpInvokerProxyHA) mi.getInvocationContext().getInvoker();
54       // Implement local methods
55 if( methodName.equals("toString") )
56       {
57          return toString(proxy);
58       }
59       if( methodName.equals("equals") )
60       {
61          Object JavaDoc[] args = mi.getArguments();
62          String JavaDoc thisString = toString(proxy);
63          String JavaDoc argsString = args[0] == null ? "" : args[0].toString();
64          return new Boolean JavaDoc(thisString.equals(argsString));
65       }
66       if( methodName.equals("hashCode") )
67       {
68          return (Integer JavaDoc) mi.getObjectName();
69       }
70
71       return getNext().invoke(mi);
72    }
73
74    private String JavaDoc toString(HttpInvokerProxyHA proxy)
75    {
76       StringBuffer JavaDoc tmp = new StringBuffer JavaDoc(proxy.toString());
77       tmp.append('{');
78       tmp.append("clusterInfo="+proxy.getClusterInfo());
79       tmp.append('}');
80       return tmp.toString();
81    }
82 }
83
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