Source Code Cross Referenced for JURLs.java in  » J2EE » JOnAS-4.8.6 » org » objectweb » jonas » server » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » JOnAS 4.8.6 » org.objectweb.jonas.server 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * JOnAS: Java(TM) Open Application Server
003:         * Copyright (C) 1999-2004 Bull S.A.
004:         * Contact: jonas-team@objectweb.org
005:         *
006:         * This library is free software; you can redistribute it and/or
007:         * modify it under the terms of the GNU Lesser General Public
008:         * License as published by the Free Software Foundation; either
009:         * version 2.1 of the License, or any later version.
010:         *
011:         * This library is distributed in the hope that it will be useful,
012:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
013:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014:         * Lesser General Public License for more details.
015:         *
016:         * You should have received a copy of the GNU Lesser General Public
017:         * License along with this library; if not, write to the Free Software
018:         * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
019:         * USA
020:         *
021:         * Initial developer(s): Florent BENOIT & Ludovic BERT
022:         * --------------------------------------------------------------------------
023:         * $Id: JURLs.java 4804 2004-05-25 15:13:29Z benoitf $
024:         * --------------------------------------------------------------------------
025:         */package org.objectweb.jonas.server;
026:
027:        import java.util.Enumeration;
028:        import java.util.Vector;
029:        import java.io.File;
030:        import java.net.URL;
031:        import java.net.MalformedURLException;
032:
033:        /**
034:         * This implements an utility class that list the URLs of the jars to load at
035:         * the launch time of the JOnAS server.
036:         * @author Ludovic Bert
037:         * @author Florent Benoit
038:         */
039:        public class JURLs extends Vector {
040:
041:            /**
042:             * Construct an empty JURLs.
043:             */
044:            public JURLs() {
045:                super ();
046:            }
047:
048:            /**
049:             * Add the specified file or directory to this JURLs. Note that in the case
050:             * of a directory this method add only the content of this one.
051:             * @param file the specified file or directory to add to this JURLs.
052:             * @throws MalformedURLException to indicate that a malformed URL has
053:             *         occured.
054:             */
055:            public void add(File file) throws MalformedURLException {
056:                add(file, null, null, null);
057:            }
058:
059:            /**
060:             * Add the specified directory to this JURLs. Note that this method add the
061:             * URL of the specified directory and not the content of this directory.
062:             * @param file the directory to add to this JURLs.
063:             * @throws MalformedURLException to indicate that a malformed URL has
064:             *         occured.
065:             */
066:            public void addDir(File file) throws MalformedURLException {
067:                if (!file.exists() || !file.isDirectory()) {
068:                    String err = "Warning: Ressource " + file.getName();
069:                    err += " cannot be loaded : The directory does not exist";
070:                    System.out.println(err);
071:                } else {
072:                    if (!contains(file.toURL())) {
073:                        add(file.toURL());
074:                    }
075:                }
076:            }
077:
078:            /**
079:             * Add the content of the specified directory to this JURLs, by using the
080:             * specified filter.
081:             * @param file the directory to add to this JURLs.
082:             * @param filter the filter to use to add the content of this directory,
083:             *        null if not use the filter.
084:             * @throws MalformedURLException to indicate that a malformed URL has
085:             *         occured.
086:             */
087:            public void add(File file, String filter)
088:                    throws MalformedURLException {
089:                if (file.isDirectory()) {
090:                    add(file, filter, null, null);
091:                } else {
092:                    String err = "Warning: Ressource " + file.getName();
093:                    err += " cannot be loaded : It is not a directory";
094:                    System.out.println(err);
095:                }
096:            }
097:
098:            /**
099:             * Add the content of the specified directory to this JURLs if the contained
100:             * file not starts with the specified prefix.
101:             * @param file the directory to add to this JURLs.
102:             * @param prefix the prefix to ignore, null if not use the prefix.
103:             * @throws MalformedURLException to indicate that a malformed URL has
104:             *         occured.
105:             */
106:            public void addNotStartWith(File file, String prefix)
107:                    throws MalformedURLException {
108:
109:                if (file.isDirectory()) {
110:                    add(file, null, prefix, null);
111:                } else {
112:                    String err = "Warning: Ressource " + file.getName();
113:                    err += " cannot be loaded : It is not a directory";
114:                    System.out.println(err);
115:                }
116:            }
117:
118:            /**
119:             * Add the content of the specified directory to this JURLs if the contained
120:             * file not ends with the specified suffix.
121:             * @param file the directory to add to this JURLs.
122:             * @param suffix the suffix to ignore, null if not use the suffix.
123:             * @throws MalformedURLException to indicate that a malformed URL has
124:             *         occured.
125:             */
126:            public void addNotEndWith(File file, String suffix)
127:                    throws MalformedURLException {
128:
129:                if (file.isDirectory()) {
130:                    add(file, null, null, suffix);
131:                } else {
132:                    String err = "Warning: Ressource " + file.getName();
133:                    err += " cannot be loaded : It is not a directory";
134:                    System.out.println(err);
135:                }
136:            }
137:
138:            /**
139:             * Add the content of the specified directory to this JURLs by using a file
140:             * filter and if the contained file not starts with the prefix and not ends
141:             * with the suffix.
142:             * @param file the directory to add to this JURLs.
143:             * @param filter the filter to use to add the content of this directory,
144:             *        null if not use the filter.
145:             * @param prefix the prefix to ignore, null if not use the prefix.
146:             * @param suffix the suffix to ignore, null if not use the suffix.
147:             * @throws MalformedURLException to indicate that a malformed URL has
148:             *         occured.
149:             */
150:            public void add(File file, String filter, String prefix,
151:                    String suffix) throws MalformedURLException {
152:                if (!file.exists()) {
153:                    String err = "Warning: Ressource " + file.getPath();
154:                    err += " cannot be loaded : The file or directory does not exist";
155:                    err += "(Check your environment variable)";
156:                    System.out.println(err);
157:                } else {
158:                    if (file.isFile()) {
159:                        if (!isMatching(file, prefix, suffix)
160:                                && !contains(file.toURL())) {
161:                            // System.out.println("Adding URL "+file.toURL()); // DEBUG
162:                            add(file.toURL());
163:                        }
164:                    } else {
165:                        File[] childrenFiles = null;
166:                        if (filter != null) {
167:                            childrenFiles = file.listFiles(new JFileFilter(
168:                                    filter));
169:                        } else {
170:                            childrenFiles = file.listFiles();
171:                        }
172:                        for (int i = 0; i < childrenFiles.length; i++) {
173:                            add(childrenFiles[i], filter, prefix, suffix);
174:                        }
175:                    }
176:                }
177:            }
178:
179:            /**
180:             * Return true if only if the file starts with the specified prefix or ends
181:             * with the specified suffix.
182:             * @param file the file to match.
183:             * @param prefix the prefix to use for the matching, null if do not use the
184:             *        prefix.
185:             * @param suffix the suffix to use for the matching, null if do not use the
186:             *        suffix.
187:             * @return true if only if the file starts with the specified prefix or ends
188:             *         with the specified suffix.
189:             */
190:            private boolean isMatching(File file, String prefix, String suffix) {
191:                String fileName = file.getName();
192:                if (prefix == null) {
193:                    if (suffix == null) {
194:                        return false;
195:                    } else {
196:                        return fileName.endsWith(suffix);
197:                    }
198:                } else {
199:                    if (suffix == null) {
200:                        return fileName.startsWith(prefix);
201:                    } else {
202:                        return fileName.startsWith(prefix)
203:                                || fileName.endsWith(suffix);
204:                    }
205:                }
206:            }
207:
208:            /**
209:             * Merge the specified JURls to this JURLs.
210:             * @param jurl the JURls to merge with this JURLs.
211:             */
212:            public void merge(JURLs jurl) {
213:                for (Enumeration e = jurl.elements(); e.hasMoreElements();) {
214:                    URL url = (URL) e.nextElement();
215:                    if (!contains(url)) {
216:                        add(url);
217:                    }
218:                }
219:            }
220:
221:            /**
222:             * Remove the specified file of this JURLs
223:             * @param file the file to be removed
224:             * @throws MalformedURLException to indicate that a malformed URL has
225:             *         occured.
226:             */
227:            public void remove(File file) throws MalformedURLException {
228:                if (file.exists()) {
229:                    remove(file.toURL());
230:                } else {
231:                    String err = "Warning: Ressource " + file.getName();
232:                    err += " cannot be removed : It doesn't exist";
233:                    System.out.println(err);
234:                }
235:            }
236:
237:            /**
238:             * Return an array containing all the URLs of this JURLs.
239:             * @return an array containing all the URLs of this JURLs.
240:             */
241:            public URL[] toURLs() {
242:                return (URL[]) super .toArray(new URL[elementCount]);
243:            }
244:        }
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