J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2002-2003 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package com.sun.jmx.snmp.defaults; |
| 27 | |
| 28 | |
| 29 | // java import |
| 30 | // |
| 31 | import java.io.File; |
| 32 | import java.io.BufferedReader; |
| 33 | import java.io.InputStream; |
| 34 | import java.io.InputStreamReader; |
| 35 | import java.util.StringTokenizer; |
| 36 | |
| 37 | /** |
| 38 | * This class represents a set of default directories used by Java DMK. |
| 39 | * |
| 40 | * <p><b>This API is a Sun Microsystems internal API and is subject |
| 41 | * to change without notice.</b></p> |
| 42 | * @since 1.5 |
| 43 | */ |
| 44 | public class DefaultPaths { |
| 45 | private static final String INSTALL_PATH_RESOURCE_NAME = "com/sun/jdmk/defaults/install.path"; |
| 46 | // private constructor defined to "hide" the default public constructor |
| 47 | private DefaultPaths() { |
| 48 | |
| 49 | } |
| 50 | |
| 51 | // PUBLIC STATIC METHODS |
| 52 | //---------------------- |
| 53 | |
| 54 | /** |
| 55 | * Returns the installation directory for Java DMK. |
| 56 | * |
| 57 | * The default value of the installation directory is: |
| 58 | * <CODE><base_dir> + File.separator + SUNWjdmk + File.separator + jdmk5.0 </CODE> |
| 59 | * |
| 60 | * @return Java DMK installation directory. |
| 61 | */ |
| 62 | public static String getInstallDir() { |
| 63 | if (installDir == null) |
| 64 | return useRessourceFile(); |
| 65 | else |
| 66 | return installDir; |
| 67 | } |
| 68 | |
| 69 | /** |
| 70 | * Returns the installation directory for Java DMK concatenated with dirname. |
| 71 | * |
| 72 | * The default value of the installation directory is: |
| 73 | * <CODE><base_dir> + File.separator + SUNWjdmk + File.separator + jdmk5.0 </CODE> |
| 74 | * |
| 75 | * @param dirname The directory to be appended. |
| 76 | * |
| 77 | * @return Java DMK installation directory + <CODE>File.separator</CODE> + <CODE>dirname</CODE>. |
| 78 | */ |
| 79 | public static String getInstallDir(String dirname) { |
| 80 | if (installDir == null) { |
| 81 | if (dirname == null) { |
| 82 | return getInstallDir(); |
| 83 | } else { |
| 84 | return getInstallDir() + File.separator + dirname; |
| 85 | } |
| 86 | } else { |
| 87 | if (dirname == null) { |
| 88 | return installDir; |
| 89 | } else { |
| 90 | return installDir + File.separator + dirname; |
| 91 | } |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * Sets the installation directory for Java DMK. |
| 97 | * |
| 98 | * @param dirname The directory where Java DMK resides. |
| 99 | */ |
| 100 | public static void setInstallDir(String dirname) { |
| 101 | installDir = dirname; |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * Returns the <CODE>etc</CODE> directory for Java DMK. |
| 106 | * <P> |
| 107 | * The default value of the <CODE>etc</CODE> directory is: |
| 108 | * <UL> |
| 109 | * <LI><CODE>DefaultPaths.getInstallDir("etc")</CODE>. |
| 110 | * </UL> |
| 111 | * |
| 112 | * @return Java DMK <CODE>etc</CODE> directory. |
| 113 | */ |
| 114 | public static String getEtcDir() { |
| 115 | if (etcDir == null) |
| 116 | return getInstallDir("etc"); |
| 117 | else |
| 118 | return etcDir; |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * Returns the <CODE>etc</CODE> directory for Java DMK concatenated with dirname. |
| 123 | * <P> |
| 124 | * The default value of the <CODE>etc</CODE> directory is: |
| 125 | * <UL> |
| 126 | * <LI><CODE>DefaultPaths.getInstallDir("etc")</CODE>. |
| 127 | * </UL> |
| 128 | * |
| 129 | * @param dirname The directory to be appended. |
| 130 | * |
| 131 | * @return Java DMK <CODE>etc</CODE> directory + <CODE>File.separator</CODE> + <CODE>dirname</CODE>. |
| 132 | */ |
| 133 | public static String getEtcDir(String dirname) { |
| 134 | if (etcDir == null) { |
| 135 | if (dirname == null) { |
| 136 | return getEtcDir(); |
| 137 | } else { |
| 138 | return getEtcDir() + File.separator + dirname; |
| 139 | } |
| 140 | } else { |
| 141 | if (dirname == null) { |
| 142 | return etcDir; |
| 143 | } else { |
| 144 | return etcDir + File.separator + dirname; |
| 145 | } |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | /** |
| 150 | * Sets the <CODE>etc</CODE> directory for Java DMK. |
| 151 | * |
| 152 | * @param dirname The <CODE>etc</CODE> directory for Java DMK. |
| 153 | */ |
| 154 | public static void setEtcDir(String dirname) { |
| 155 | etcDir = dirname; |
| 156 | } |
| 157 | |
| 158 | /** |
| 159 | * Returns the <CODE>tmp</CODE> directory for the product. |
| 160 | * <P> |
| 161 | * The default value of the <CODE>tmp</CODE> directory is: |
| 162 | * <UL> |
| 163 | * <LI><CODE>DefaultPaths.getInstallDir("tmp")</CODE>. |
| 164 | * </UL> |
| 165 | * |
| 166 | * @return Java DMK <CODE>tmp</CODE> directory. |
| 167 | */ |
| 168 | public static String getTmpDir() { |
| 169 | if (tmpDir == null) |
| 170 | return getInstallDir("tmp"); |
| 171 | else |
| 172 | return tmpDir; |
| 173 | } |
| 174 | |
| 175 | /** |
| 176 | * Returns the <CODE>tmp</CODE> directory for Java DMK concatenated with dirname. |
| 177 | * <P> |
| 178 | * The default value of the <CODE>tmp</CODE> directory is: |
| 179 | * <UL> |
| 180 | * <LI><CODE>DefaultPaths.getInstallDir("tmp")</CODE>. |
| 181 | * </UL> |
| 182 | * |
| 183 | * @param dirname The directory to be appended. |
| 184 | * |
| 185 | * @return Java DMK <CODE>tmp</CODE> directory + <CODE>File.separator</CODE> + <CODE>dirname</CODE>. |
| 186 | */ |
| 187 | public static String getTmpDir(String dirname) { |
| 188 | if (tmpDir == null) { |
| 189 | if (dirname == null) { |
| 190 | return getTmpDir(); |
| 191 | } else { |
| 192 | return getTmpDir() + File.separator + dirname; |
| 193 | } |
| 194 | } else { |
| 195 | if (dirname == null) { |
| 196 | return tmpDir; |
| 197 | } else { |
| 198 | return tmpDir + File.separator + dirname; |
| 199 | } |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | /** |
| 204 | * Sets the <CODE>tmp</CODE> directory for the product |
| 205 | * |
| 206 | * @param dirname The <CODE>tmp</CODE> directory for Java DMK. |
| 207 | */ |
| 208 | public static void setTmpDir(String dirname) { |
| 209 | tmpDir = dirname; |
| 210 | } |
| 211 | |
| 212 | |
| 213 | // PRIVATE STATIC METHODS |
| 214 | //----------------------- |
| 215 | |
| 216 | private static String useRessourceFile() { |
| 217 | InputStream in = null; |
| 218 | BufferedReader r = null; |
| 219 | try { |
| 220 | in = |
| 221 | DefaultPaths.class.getClassLoader().getResourceAsStream(INSTALL_PATH_RESOURCE_NAME); |
| 222 | if(in == null) return null; |
| 223 | r = new BufferedReader(new InputStreamReader(in)); |
| 224 | installDir = r.readLine(); |
| 225 | }catch(Exception e) { |
| 226 | } |
| 227 | finally { |
| 228 | try { |
| 229 | if(in != null) in.close(); |
| 230 | if(r != null) r.close(); |
| 231 | }catch(Exception e) {} |
| 232 | } |
| 233 | return installDir; |
| 234 | } |
| 235 | |
| 236 | // PRIVATE VARIABLES |
| 237 | //------------------ |
| 238 | |
| 239 | /** |
| 240 | * Directories used by Java DMK. |
| 241 | */ |
| 242 | private static String etcDir; |
| 243 | private static String tmpDir; |
| 244 | private static String installDir; |
| 245 | } |