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Java > Open Source Codes > com > caucho > hessian > client > HessianProxyResolver


1 /*
2  * Copyright (c) 2001-2004 Caucho Technology, Inc. All rights reserved.
3  *
4  * The Apache Software License, Version 1.1
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  * notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  * notice, this list of conditions and the following disclaimer in
15  * the documentation and/or other materials provided with the
16  * distribution.
17  *
18  * 3. The end-user documentation included with the redistribution, if
19  * any, must include the following acknowlegement:
20  * "This product includes software developed by the
21  * Caucho Technology (http://www.caucho.com/)."
22  * Alternately, this acknowlegement may appear in the software itself,
23  * if and wherever such third-party acknowlegements normally appear.
24  *
25  * 4. The names "Hessian", "Resin", and "Caucho" must not be used to
26  * endorse or promote products derived from this software without prior
27  * written permission. For written permission, please contact
28  * info@caucho.com.
29  *
30  * 5. Products derived from this software may not be called "Resin"
31  * nor may "Resin" appear in their names without prior written
32  * permission of Caucho Technology.
33  *
34  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
35  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
36  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
37  * DISCLAIMED. IN NO EVENT SHALL CAUCHO TECHNOLOGY OR ITS CONTRIBUTORS
38  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
39  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
40  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
41  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
42  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
43  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
44  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
45  *
46  * @author Scott Ferguson
47  */
48
49 package com.caucho.hessian.client;
50
51 import com.caucho.hessian.io.HessianRemoteResolver;
52
53 import java.io.IOException JavaDoc;
54
55 /**
56  * Looks up remote objects in the proxy.
57  */
58 public class HessianProxyResolver implements HessianRemoteResolver {
59   private HessianProxyFactory _factory;
60   
61   /**
62    * Creates an uninitialized Hessian remote resolver.
63    */
64   public HessianProxyResolver(HessianProxyFactory factory)
65   {
66     _factory = factory;
67   }
68
69   /**
70    * Looks up a proxy object.
71    */
72   public Object JavaDoc lookup(String JavaDoc type, String JavaDoc url)
73     throws IOException JavaDoc
74   {
75     ClassLoader JavaDoc loader = Thread.currentThread().getContextClassLoader();
76
77     try {
78       Class JavaDoc api = Class.forName(type, false, loader);
79
80       return _factory.create(api, url);
81     } catch (Exception JavaDoc e) {
82       throw new IOException JavaDoc(String.valueOf(e));
83     }
84   }
85 }
86
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