| 1 | /* |
| 2 | * Copyright (c) 2001-2009, Jean Tessier |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * |
| 9 | * * Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * |
| 12 | * * Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * |
| 16 | * * Neither the name of Jean Tessier nor the names of his contributors |
| 17 | * may be used to endorse or promote products derived from this software |
| 18 | * without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR |
| 24 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 25 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 26 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 27 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 28 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 29 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 30 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | */ |
| 32 | |
| 33 | package com.jeantessier.dependencyfinder; |
| 34 | |
| 35 | import java.io.*; |
| 36 | import java.util.jar.*; |
| 37 | |
| 38 | import org.apache.log4j.*; |
| 39 | |
| 40 | public class Version { |
| 41 | public static final String DEFAULT_URL = "http://depfind.sourceforge.net/"; |
| 42 | public static final String DEFAULT_TITLE = "Dependency Finder"; |
| 43 | public static final String DEFAULT_VERSION = "<i>unknown</i>"; |
| 44 | public static final String DEFAULT_VENDOR = "Jean Tessier"; |
| 45 | public static final String DEFAULT_DATE = "<i>unknown</i>"; |
| 46 | public static final String DEFAULT_COPYRIGHT_HOLDER = "Jean Tessier"; |
| 47 | public static final String DEFAULT_COPYRIGHT_DATE = "2001-2009"; |
| 48 | |
| 49 | private String resourceURL = null; |
| 50 | private String jarName = null; |
| 51 | |
| 52 | private Attributes attributes = null; |
| 53 | |
| 54 | public Version() { |
| 55 | resourceURL = getClass().getResource("Version.class").toString(); |
| 56 | |
| 57 | if (resourceURL.startsWith("jar:file:")) { |
| 58 | jarName = resourceURL.substring(9, resourceURL.indexOf(".jar!") + 4); |
| 59 | |
| 60 | try { |
| 61 | JarFile jar = new JarFile(jarName); |
| 62 | Manifest manifest = jar.getManifest(); |
| 63 | |
| 64 | attributes = manifest.getMainAttributes(); |
| 65 | } catch (IOException ex) { |
| 66 | Logger.getLogger(getClass()).error("Could not get version information, using defaults", ex); |
| 67 | } |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | public String getResourceURL() { |
| 72 | return resourceURL; |
| 73 | } |
| 74 | |
| 75 | public String getJarName() { |
| 76 | return jarName; |
| 77 | } |
| 78 | |
| 79 | public String getImplementationURL() { |
| 80 | String result = DEFAULT_URL; |
| 81 | |
| 82 | if (attributes != null) { |
| 83 | result = attributes.getValue("Implementation-URL"); |
| 84 | } |
| 85 | |
| 86 | return result; |
| 87 | } |
| 88 | |
| 89 | public String getImplementationTitle() { |
| 90 | String result = DEFAULT_TITLE; |
| 91 | |
| 92 | if (attributes != null) { |
| 93 | result = attributes.getValue("Implementation-Title"); |
| 94 | } |
| 95 | |
| 96 | return result; |
| 97 | } |
| 98 | |
| 99 | public String getImplementationVersion() { |
| 100 | String result = DEFAULT_VERSION; |
| 101 | |
| 102 | if (attributes != null) { |
| 103 | result = attributes.getValue("Implementation-Version"); |
| 104 | } |
| 105 | |
| 106 | return result; |
| 107 | } |
| 108 | |
| 109 | public String getImplementationVendor() { |
| 110 | String result = DEFAULT_VENDOR; |
| 111 | |
| 112 | if (attributes != null) { |
| 113 | result = attributes.getValue("Implementation-Vendor"); |
| 114 | } |
| 115 | |
| 116 | return result; |
| 117 | } |
| 118 | |
| 119 | public String getImplementationDate() { |
| 120 | String result = DEFAULT_DATE; |
| 121 | |
| 122 | if (attributes != null) { |
| 123 | result = attributes.getValue("Implementation-Date"); |
| 124 | } |
| 125 | |
| 126 | return result; |
| 127 | } |
| 128 | |
| 129 | public String getSpecificationTitle() { |
| 130 | String result = DEFAULT_TITLE; |
| 131 | |
| 132 | if (attributes != null) { |
| 133 | result = attributes.getValue("Specification-Title"); |
| 134 | } |
| 135 | |
| 136 | return result; |
| 137 | } |
| 138 | |
| 139 | public String getSpecificationVersion() { |
| 140 | String result = DEFAULT_VERSION; |
| 141 | |
| 142 | if (attributes != null) { |
| 143 | result = attributes.getValue("Specification-Version"); |
| 144 | } |
| 145 | |
| 146 | return result; |
| 147 | } |
| 148 | |
| 149 | public String getSpecificationVendor() { |
| 150 | String result = DEFAULT_VENDOR; |
| 151 | |
| 152 | if (attributes != null) { |
| 153 | result = attributes.getValue("Specification-Vendor"); |
| 154 | } |
| 155 | |
| 156 | return result; |
| 157 | } |
| 158 | |
| 159 | public String getSpecificationDate() { |
| 160 | String result = DEFAULT_DATE; |
| 161 | |
| 162 | if (attributes != null) { |
| 163 | result = attributes.getValue("Specification-Date"); |
| 164 | } |
| 165 | |
| 166 | return result; |
| 167 | } |
| 168 | |
| 169 | public String getCopyrightHolder() { |
| 170 | String result = DEFAULT_COPYRIGHT_HOLDER; |
| 171 | |
| 172 | if (attributes != null) { |
| 173 | result = attributes.getValue("Copyright-Holder"); |
| 174 | } |
| 175 | |
| 176 | return result; |
| 177 | } |
| 178 | |
| 179 | public String getCopyrightDate() { |
| 180 | String result = DEFAULT_COPYRIGHT_DATE; |
| 181 | |
| 182 | if (attributes != null) { |
| 183 | result = attributes.getValue("Copyright-Date"); |
| 184 | } |
| 185 | |
| 186 | return result; |
| 187 | } |
| 188 | } |