01: /* ========================================================================
02: * JCommon : a free general purpose class library for the Java(tm) platform
03: * ========================================================================
04: *
05: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
06: *
07: * Project Info: http://www.jfree.org/jcommon/index.html
08: *
09: * This library is free software; you can redistribute it and/or modify it
10: * under the terms of the GNU Lesser General Public License as published by
11: * the Free Software Foundation; either version 2.1 of the License, or
12: * (at your option) any later version.
13: *
14: * This library is distributed in the hope that it will be useful, but
15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17: * License for more details.
18: *
19: * You should have received a copy of the GNU Lesser General Public
20: * License along with this library; if not, write to the Free Software
21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22: * USA.
23: *
24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
25: * in the United States and other countries.]
26: *
27: * ---------------
28: * PadMessage.java
29: * ---------------
30: * (C) Copyright 2004, by Object Refinery Limited.
31: *
32: * Original Author: Thomas Morgner;
33: * Contributor(s): David Gilbert (for Object Refinery Limited);
34: *
35: * $Id: PadMessage.java,v 1.4 2005/10/18 13:14:33 mungady Exp $
36: *
37: * Changes
38: * -------
39: * 15-Jul-2004 : Added JCommon header (DG);
40: *
41: */
42:
43: package org.jfree.base.log;
44:
45: import java.util.Arrays;
46:
47: /**
48: * A message object that pads the output if the text is shorter than
49: * the given length. This is usefull when concating multiple messages,
50: * which should appear in a table like style.
51: *
52: * @author Thomas Morgner
53: */
54: public class PadMessage {
55:
56: /**
57: * The message.
58: */
59: private final Object text;
60:
61: /**
62: * The padding size.
63: */
64: private final int length;
65:
66: /**
67: * Creates a new message.
68: *
69: * @param message the message.
70: * @param length the padding size.
71: */
72: public PadMessage(final Object message, final int length) {
73: this .text = message;
74: this .length = length;
75: }
76:
77: /**
78: * Returns a string representation of the message.
79: *
80: * @return the string.
81: */
82: public String toString() {
83: final StringBuffer b = new StringBuffer();
84: b.append(this .text);
85: if (b.length() < this .length) {
86: final char[] pad = new char[this .length - b.length()];
87: Arrays.fill(pad, ' ');
88: b.append(pad);
89: }
90: return b.toString();
91: }
92:
93: }
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