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Java > Open Source Codes > net > jforum > util > concurrent > executor > DirectExecutor


1 /*
2  * Copyright (c) 2003, Rafael Steil
3  * All rights reserved.
4
5  * Redistribution and use in source and binary forms,
6  * with or without modification, are permitted provided
7  * that the following conditions are met:
8
9  * 1) Redistributions of source code must retain the above
10  * copyright notice, this list of conditions and the
11  * following disclaimer.
12  * 2) Redistributions in binary form must reproduce the
13  * above copyright notice, this list of conditions and
14  * the following disclaimer in the documentation and/or
15  * other materials provided with the distribution.
16  * 3) Neither the name of "Rafael Steil" nor
17  * the names of its contributors may be used to endorse
18  * or promote products derived from this software without
19  * specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
22  * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
23  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
24  * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
27  * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
29  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES
30  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
32  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
33  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
34  * IN CONTRACT, STRICT LIABILITY, OR TORT
35  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
36  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
37  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
38  *
39  * This file creation date: Jan 28, 2004
40  * net.jforum.util.concurrent.executor.DirectExecutor.java
41  * The JForum Project
42  * http://www.jforum.net
43  *
44  * $Id: DirectExecutor.java,v 1.5 2005/07/26 03:05:59 rafaelsteil Exp $
45  */
46 package net.jforum.util.concurrent.executor;
47
48 import net.jforum.util.concurrent.Executor;
49 import net.jforum.util.concurrent.Result;
50 import net.jforum.util.concurrent.Task;
51
52 /**
53  * Implements a direct executor
54  *
55  * @author Rodrigo Kumpera
56  */
57 public class DirectExecutor implements Executor
58 {
59     public DirectExecutor()
60     {
61         super();
62     }
63
64     public void execute(Task task)
65     {
66         try {
67             task.execute();
68         }
69         catch(Exception JavaDoc e) {
70             //if they don't care, why should I?
71 }
72     }
73
74     public Result executeWithResult(Task task)
75     {
76         Object JavaDoc result = null;
77         Exception JavaDoc ex = null;
78         
79         try {
80             result = task.execute();
81         } catch(Exception JavaDoc e) {
82             ex = e;
83         }
84         
85         return new ReadyResult(result, ex);
86     }
87
88 }
89
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