01: /**
02: * Copyright (c) 2005, www.pdfbox.org
03: * All rights reserved.
04: *
05: * Redistribution and use in source and binary forms, with or without
06: * modification, are permitted provided that the following conditions are met:
07: *
08: * 1. Redistributions of source code must retain the above copyright notice,
09: * this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright notice,
11: * this list of conditions and the following disclaimer in the documentation
12: * and/or other materials provided with the distribution.
13: * 3. Neither the name of pdfbox; nor the names of its
14: * contributors may be used to endorse or promote products derived from this
15: * software without specific prior written permission.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20: * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
21: * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
24: * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
26: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27: *
28: * http://www.pdfbox.org
29: *
30: */package org.pdfbox;
31:
32: import java.io.IOException;
33:
34: import java.util.Properties;
35:
36: import org.pdfbox.util.ResourceLoader;
37:
38: /**
39: * A simple command line utility to get the version of PDFBox.
40: *
41: * @author <a href="ben@benlitchfield.com">Ben Litchfield</a>
42: * @version $Revision: 1.4 $
43: */
44: public class Version {
45: private static final String PDFBOX_VERSION_PROPERTIES = "Resources/pdfbox.version";
46:
47: private Version() {
48: //should not be constructed.
49: }
50:
51: /**
52: * Get the version of PDFBox or unknown if it is not known.
53: *
54: * @return The version of pdfbox that is being used.
55: */
56: public static String getVersion() {
57: String version = "unknown";
58: try {
59: Properties props = ResourceLoader
60: .loadProperties(PDFBOX_VERSION_PROPERTIES);
61: version = props.getProperty("pdfbox.version", version);
62: } catch (IOException io) {
63: //if there is a problem loading the properties then don't throw an
64: //exception, 'unknown' will be returned instead.
65: io.printStackTrace();
66: }
67: return version;
68: }
69:
70: /**
71: * This will print out the version of PDF to System.out.
72: *
73: * @param args Command line arguments.
74: */
75: public static void main(String[] args) {
76: if (args.length != 0) {
77: usage();
78: return;
79: }
80: System.out.println("Version:" + getVersion());
81: }
82:
83: /**
84: * This will print out a message telling how to use this example.
85: */
86: private static void usage() {
87: System.err.println("usage: " + Version.class.getName());
88: }
89:
90: }
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