1 /*
2 * $Source: /usr/cvsroot/melati/melati/src/main/java/org/melati/app/InvalidArgumentsException.java,v $
3 * $Revision: 1.4 $
4 *
5 * Copyright (C) 2005 Tim Pizey
6 *
7 * Part of Melati (http://melati.org), a framework for the rapid
8 * development of clean, maintainable web applications.
9 *
10 * Melati is free software; Permission is granted to copy, distribute
11 * and/or modify this software under the terms either:
12 *
13 * a) the GNU General Public License as published by the Free Software
14 * Foundation; either version 2 of the License, or (at your option)
15 * any later version,
16 *
17 * or
18 *
19 * b) any version of the Melati Software License, as published
20 * at http://melati.org
21 *
22 * You should have received a copy of the GNU General Public License and
23 * the Melati Software License along with this program;
24 * if not, write to the Free Software Foundation, Inc.,
25 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the
26 * GNU General Public License and visit http://melati.org to obtain the
27 * Melati Software License.
28 *
29 * Feel free to contact the Developers of Melati (http://melati.org),
30 * if you would like to work out a different arrangement than the options
31 * outlined here. It is our intention to allow Melati to be used by as
32 * wide an audience as possible.
33 *
34 * This program is distributed in the hope that it will be useful,
35 * but WITHOUT ANY WARRANTY; without even the implied warranty of
36 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
37 * GNU General Public License for more details.
38 *
39 * Contact details for copyright holder:
40 *
41 * Tim Pizey <timp At paneris.org>
42 * http://paneris.org/~timp
43 */
44
45 package org.melati.app;
46
47 import org.melati.util.MelatiRuntimeException;
48
49 /**
50 * Thrown when an application was called with unexpected arguments.
51 */
52 public class InvalidArgumentsException extends MelatiRuntimeException {
53 private static final long serialVersionUID = 1L;
54
55 String[] args = null;
56
57 /**
58 * Constructor.
59 *
60 * @param args the argument array
61 * @param problem the exception to be reported
62 */
63 public InvalidArgumentsException(String[] args, Exception problem) {
64 super(problem);
65 this.args = args;
66 }
67
68 /**
69 * Constructor.
70 *
71 * @param args the arguments passed in
72 */
73 public InvalidArgumentsException(String[] args) {
74 this(args, null);
75 }
76
77 /**
78 * @return the message.
79 */
80 public String getMessage() {
81 return args == null ?
82 "No arguments given" :
83 "Arguments `" + join(args, " ") + "' have wrong form" +
84 (subException == null ? "" : ":\n" + subException.toString());
85 }
86
87 private String join(String[] array, String sep){
88 StringBuffer sb = new StringBuffer();
89 boolean hadOne = false;
90 for (int i = 0; i < array.length; i++) {
91 if (hadOne) sb.append(sep);
92 hadOne = true;
93 sb.append(array[i]);
94 }
95 return sb.toString();
96 }
97 }