| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| DefaultMimeTypeService |
|
| 1.4736842105263157;1,474 |
| 1 | package org.apache.fulcrum.mimetype; | |
| 2 | ||
| 3 | /* | |
| 4 | * Licensed to the Apache Software Foundation (ASF) under one | |
| 5 | * or more contributor license agreements. See the NOTICE file | |
| 6 | * distributed with this work for additional information | |
| 7 | * regarding copyright ownership. The ASF licenses this file | |
| 8 | * to you under the Apache License, Version 2.0 (the | |
| 9 | * "License"); you may not use this file except in compliance | |
| 10 | * with the License. You may obtain a copy of the License at | |
| 11 | * | |
| 12 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 13 | * | |
| 14 | * Unless required by applicable law or agreed to in writing, | |
| 15 | * software distributed under the License is distributed on an | |
| 16 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
| 17 | * KIND, either express or implied. See the License for the | |
| 18 | * specific language governing permissions and limitations | |
| 19 | * under the License. | |
| 20 | */ | |
| 21 | ||
| 22 | import java.io.File; | |
| 23 | import java.io.IOException; | |
| 24 | import java.util.Locale; | |
| 25 | ||
| 26 | import org.apache.avalon.framework.activity.Initializable; | |
| 27 | import org.apache.avalon.framework.configuration.Configurable; | |
| 28 | import org.apache.avalon.framework.configuration.Configuration; | |
| 29 | import org.apache.avalon.framework.context.Context; | |
| 30 | import org.apache.avalon.framework.context.ContextException; | |
| 31 | import org.apache.avalon.framework.context.Contextualizable; | |
| 32 | import org.apache.avalon.framework.logger.AbstractLogEnabled; | |
| 33 | import org.apache.fulcrum.mimetype.util.CharSetMap; | |
| 34 | import org.apache.fulcrum.mimetype.util.MimeType; | |
| 35 | import org.apache.fulcrum.mimetype.util.MimeTypeMap; | |
| 36 | /** | |
| 37 | * The MimeType Service maintains mappings between MIME types and | |
| 38 | * the corresponding file name extensions, and between locales and | |
| 39 | * character encodings. | |
| 40 | * | |
| 41 | * <p>The MIME type mappings can be defined in MIME type files | |
| 42 | * located in user's home directory, Java home directory or | |
| 43 | * the current class jar. The default mapping file is defined | |
| 44 | * with the mime.type.file property. In addition, the service maintains | |
| 45 | * a set of most common mappings. | |
| 46 | * | |
| 47 | * <p>The charset mappings can be defined in property files | |
| 48 | * located in user's home directory, Java home directory or | |
| 49 | * the current class jar. The default mapping file is defined | |
| 50 | * with the charset.file property. In addition, the service maintains | |
| 51 | * a set of most common mappings. | |
| 52 | * | |
| 53 | * @author <a href="mailto:ilkka.priha@simsoft.fi">Ilkka Priha</a> | |
| 54 | * @author <a href="mailto:mcconnell@apache.org">Stephen McConnell</a> | |
| 55 | * @version $Id: DefaultMimeTypeService.java 813677 2009-09-11 06:48:11Z tv $ | |
| 56 | * | |
| 57 | * @avalon.component name="mimetype" lifestyle="singleton" | |
| 58 | * @avalon.service type="org.apache.fulcrum.mimetype.MimeTypeService" | |
| 59 | */ | |
| 60 | public class DefaultMimeTypeService | |
| 61 | extends AbstractLogEnabled | |
| 62 | implements MimeTypeService, Configurable, Initializable, Contextualizable | |
| 63 | { | |
| 64 | private String applicationRoot; | |
| 65 | /** | |
| 66 | * The MIME type file property. | |
| 67 | */ | |
| 68 | public static final String MIME_TYPES = "mimetypes"; | |
| 69 | /** | |
| 70 | * The charset file property. | |
| 71 | */ | |
| 72 | public static final String CHARSETS = "charsets"; | |
| 73 | // path to a mimetypes-file_extension mapping file | |
| 74 | private String mimetypePath; | |
| 75 | // path to a charset-language mapping file | |
| 76 | private String charsetPath; | |
| 77 | /** | |
| 78 | * The MIME type map used by the service. | |
| 79 | */ | |
| 80 | private MimeTypeMap mimeTypeMap; | |
| 81 | /** | |
| 82 | * The charset map used by the service. | |
| 83 | */ | |
| 84 | private CharSetMap charSetMap; | |
| 85 | ||
| 86 | /** | |
| 87 | * Constructs a new service. | |
| 88 | */ | |
| 89 | public DefaultMimeTypeService() | |
| 90 | 9 | { |
| 91 | // empty | |
| 92 | 9 | } |
| 93 | /** | |
| 94 | * Sets a MIME content type mapping to extensions to the map. | |
| 95 | * The extension is specified by a MIME type name followed | |
| 96 | * by a list of file name extensions separated by a whitespace. | |
| 97 | * | |
| 98 | * @param spec a MIME type extension specification to add. | |
| 99 | */ | |
| 100 | public void setContentType(String spec) | |
| 101 | { | |
| 102 | 9 | mimeTypeMap.setContentType(spec); |
| 103 | 9 | } |
| 104 | /** | |
| 105 | * Gets the MIME content type for a file as a string. | |
| 106 | * | |
| 107 | * @param file The file to look up a MIME type mapping for. | |
| 108 | * @return the MIME type string. | |
| 109 | */ | |
| 110 | public String getContentType(File file) | |
| 111 | { | |
| 112 | 15 | return mimeTypeMap.getContentType(file); |
| 113 | } | |
| 114 | /** | |
| 115 | * Gets the MIME content type for a named file as a string. | |
| 116 | * | |
| 117 | * @param fileName The name of the file to look up a MIME type | |
| 118 | * mapping for. | |
| 119 | * @return the MIME type string. | |
| 120 | */ | |
| 121 | public String getContentType(String fileName) | |
| 122 | { | |
| 123 | 0 | return mimeTypeMap.getContentType(fileName); |
| 124 | } | |
| 125 | /** | |
| 126 | * Gets the MIME content type for a file name extension as a string. | |
| 127 | * | |
| 128 | * @param fileName The name of the file to look up a MIME type | |
| 129 | * mapping for. | |
| 130 | * @param def The default MIME type to use if no mapping exists. | |
| 131 | * @return the MIME type string. | |
| 132 | */ | |
| 133 | public String getContentType(String fileName, String def) | |
| 134 | { | |
| 135 | 0 | return mimeTypeMap.getContentType(fileName, def); |
| 136 | } | |
| 137 | /** | |
| 138 | * Gets the MIME content type for a file. | |
| 139 | * | |
| 140 | * @param file the file. | |
| 141 | * @return the MIME type. | |
| 142 | */ | |
| 143 | public MimeType getMimeContentType(File file) | |
| 144 | { | |
| 145 | 0 | return mimeTypeMap.getMimeContentType(file); |
| 146 | } | |
| 147 | /** | |
| 148 | * Gets the MIME content type for a named file. | |
| 149 | * | |
| 150 | * @param name the name of the file. | |
| 151 | * @return the MIME type. | |
| 152 | */ | |
| 153 | public MimeType getMimeContentType(String name) | |
| 154 | { | |
| 155 | 0 | return mimeTypeMap.getMimeContentType(name); |
| 156 | } | |
| 157 | /** | |
| 158 | * Gets the MIME content type for a file name extension. | |
| 159 | * | |
| 160 | * @param ext the file name extension. | |
| 161 | * @param def the default type if none is found. | |
| 162 | * @return the MIME type. | |
| 163 | */ | |
| 164 | public MimeType getMimeContentType(String ext, String def) | |
| 165 | { | |
| 166 | 0 | return mimeTypeMap.getMimeContentType(ext, def); |
| 167 | } | |
| 168 | /** | |
| 169 | * Gets the default file name extension for a MIME type. | |
| 170 | * Note that the mappers are called in the reverse order. | |
| 171 | * | |
| 172 | * @param type the MIME type as a string. | |
| 173 | * @return the file name extension or null. | |
| 174 | */ | |
| 175 | public String getDefaultExtension(String type) | |
| 176 | { | |
| 177 | 3 | return mimeTypeMap.getDefaultExtension(type); |
| 178 | } | |
| 179 | /** | |
| 180 | * Gets the default file name extension for a MIME type. | |
| 181 | * Note that the mappers are called in the reverse order. | |
| 182 | * | |
| 183 | * @param mime the MIME type. | |
| 184 | * @return the file name extension or null. | |
| 185 | */ | |
| 186 | public String getDefaultExtension(MimeType mime) | |
| 187 | { | |
| 188 | 3 | return mimeTypeMap.getDefaultExtension(mime); |
| 189 | } | |
| 190 | /** | |
| 191 | * Sets a locale-charset mapping. | |
| 192 | * | |
| 193 | * @param key the key for the charset. | |
| 194 | * @param charset the corresponding charset. | |
| 195 | */ | |
| 196 | public void setCharSet(String key, String charset) | |
| 197 | { | |
| 198 | 0 | charSetMap.setCharSet(key, charset); |
| 199 | 0 | } |
| 200 | /** | |
| 201 | * Gets the charset for a locale. First a locale specific charset | |
| 202 | * is searched for, then a country specific one and lastly a language | |
| 203 | * specific one. If none is found, the default charset is returned. | |
| 204 | * | |
| 205 | * @param locale the locale. | |
| 206 | * @return the charset. | |
| 207 | */ | |
| 208 | public String getCharSet(Locale locale) | |
| 209 | { | |
| 210 | 3 | return charSetMap.getCharSet(locale); |
| 211 | } | |
| 212 | /** | |
| 213 | * Gets the charset for a locale with a variant. The search | |
| 214 | * is performed in the following order: | |
| 215 | * "lang"_"country"_"variant"="charset", | |
| 216 | * _"counry"_"variant"="charset", | |
| 217 | * "lang"__"variant"="charset", | |
| 218 | * __"variant"="charset", | |
| 219 | * "lang"_"country"="charset", | |
| 220 | * _"country"="charset", | |
| 221 | * "lang"="charset". | |
| 222 | * If nothing of the above is found, the default charset is returned. | |
| 223 | * | |
| 224 | * @param locale the locale. | |
| 225 | * @param variant a variant field. | |
| 226 | * @return the charset. | |
| 227 | */ | |
| 228 | public String getCharSet(Locale locale, String variant) | |
| 229 | { | |
| 230 | 0 | return charSetMap.getCharSet(locale, variant); |
| 231 | } | |
| 232 | /** | |
| 233 | * Gets the charset for a specified key. | |
| 234 | * | |
| 235 | * @param key the key for the charset. | |
| 236 | * @return the found charset or the default one. | |
| 237 | */ | |
| 238 | public String getCharSet(String key) | |
| 239 | { | |
| 240 | 0 | return charSetMap.getCharSet(key); |
| 241 | } | |
| 242 | /** | |
| 243 | * Gets the charset for a specified key. | |
| 244 | * | |
| 245 | * @param key the key for the charset. | |
| 246 | * @param def the default charset if none is found. | |
| 247 | * @return the found charset or the given default. | |
| 248 | */ | |
| 249 | public String getCharSet(String key, String def) | |
| 250 | { | |
| 251 | 0 | return charSetMap.getCharSet(key, def); |
| 252 | } | |
| 253 | ||
| 254 | private String getRealPath(String path) | |
| 255 | { | |
| 256 | 0 | String absolutePath = null; |
| 257 | 0 | if (applicationRoot == null) |
| 258 | { | |
| 259 | 0 | absolutePath = new File(path).getAbsolutePath(); |
| 260 | } | |
| 261 | else | |
| 262 | { | |
| 263 | 0 | absolutePath = new File(applicationRoot, path).getAbsolutePath(); |
| 264 | } | |
| 265 | 0 | return absolutePath; |
| 266 | } | |
| 267 | // ---------------- Avalon Lifecycle Methods --------------------- | |
| 268 | /** | |
| 269 | * Avalon component lifecycle method | |
| 270 | */ | |
| 271 | public void configure(Configuration conf) | |
| 272 | { | |
| 273 | 9 | mimetypePath = conf.getAttribute(MIME_TYPES, null); |
| 274 | 9 | charsetPath = conf.getAttribute(CHARSETS, null); |
| 275 | 9 | if (mimetypePath != null) |
| 276 | { | |
| 277 | 0 | mimetypePath = getRealPath(mimetypePath); |
| 278 | } | |
| 279 | 9 | if (charsetPath != null) |
| 280 | { | |
| 281 | 0 | charsetPath = getRealPath(charsetPath); |
| 282 | } | |
| 283 | 9 | } |
| 284 | /** | |
| 285 | * Avalon component lifecycle method | |
| 286 | */ | |
| 287 | public void initialize() throws Exception | |
| 288 | { | |
| 289 | 9 | if (mimetypePath != null) |
| 290 | { | |
| 291 | try | |
| 292 | { | |
| 293 | 0 | mimeTypeMap = new MimeTypeMap(mimetypePath); |
| 294 | } | |
| 295 | 0 | catch (IOException x) |
| 296 | { | |
| 297 | 0 | throw new Exception(mimetypePath, x); |
| 298 | 0 | } |
| 299 | } | |
| 300 | else | |
| 301 | { | |
| 302 | 9 | mimeTypeMap = new MimeTypeMap(); |
| 303 | } | |
| 304 | 9 | if (charsetPath != null) |
| 305 | { | |
| 306 | try | |
| 307 | { | |
| 308 | 0 | charSetMap = new CharSetMap(charsetPath); |
| 309 | } | |
| 310 | 0 | catch (IOException x) |
| 311 | { | |
| 312 | 0 | throw new Exception(charsetPath, x); |
| 313 | 0 | } |
| 314 | } | |
| 315 | else | |
| 316 | { | |
| 317 | 9 | charSetMap = new CharSetMap(); |
| 318 | } | |
| 319 | 9 | } |
| 320 | ||
| 321 | /** | |
| 322 | * @see org.apache.avalon.framework.context.Contextualizable | |
| 323 | * @avalon.entry key="urn:avalon:home" type="java.io.File" | |
| 324 | */ | |
| 325 | public void contextualize(Context context) throws ContextException | |
| 326 | { | |
| 327 | 9 | this.applicationRoot = context.get( "urn:avalon:home" ).toString(); |
| 328 | 9 | } |
| 329 | ||
| 330 | } |