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Java > Open Source Codes > org > jacorb > orb > factory > PortRangeFactory


1 package org.jacorb.orb.factory;
2
3 /*
4  * Written for JacORB - a free Java ORB
5  *
6  * Copyright (C) 2000-2004 Nicolas Noffke, Gerald Brose.
7  *
8  * This library is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Library General Public
10  * License as published by the Free Software Foundation; either
11  * version 2 of the License, or (at your option) any later version.
12  *
13  * This library is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Library General Public License for more details.
17  *
18  * You should have received a copy of the GNU Library General Public
19  * License along with this library; if not, write to the Free
20  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21  */
22
23 import java.net.*;
24 import java.io.IOException JavaDoc;
25
26 import org.apache.avalon.framework.configuration.Configurable;
27 import org.apache.avalon.framework.configuration.ConfigurationException;
28
29 import org.jacorb.util.*;
30 import org.jacorb.orb.*;
31
32 public abstract class PortRangeFactory
33     implements Configurable
34 {
35     protected int portMin = 0;
36     protected int portMax = 0;
37     protected org.jacorb.config.Configuration configuration;
38
39     protected int getPortProperty(String JavaDoc name)
40         throws ConfigurationException
41     {
42         int port = configuration.getAttributeAsInteger(name);
43
44         // Check sensible port number
45 if (port < 0)
46         {
47            port += 65536;
48         }
49         if ((port <= 0) || (port > 65535))
50         {
51         throw new RuntimeException JavaDoc ("PortRangeFactory: " + name + " invalid port number");
52         }
53
54         return port;
55     }
56 }
57
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