Source Code Cross Referenced for Logger.java in  » Development » Monolog » org » objectweb » util » monolog » wrapper » javaLog » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Development » Monolog » org.objectweb.util.monolog.wrapper.javaLog 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * Copyright (C) 2001-2003 France Telecom R&D
003:         *
004:         * This library is free software; you can redistribute it and/or
005:         * modify it under the terms of the GNU Lesser General Public
006:         * License as published by the Free Software Foundation; either
007:         * version 2 of the License, or (at your option) any later version.
008:         *
009:         * This library is distributed in the hope that it will be useful,
010:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
011:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
012:         * Lesser General Public License for more details.
013:         *
014:         * You should have received a copy of the GNU Lesser General Public
015:         * License along with this library; if not, write to the Free Software
016:         * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
017:         */package org.objectweb.util.monolog.wrapper.javaLog;
018:
019:        import org.objectweb.util.monolog.api.Level;
020:        import org.objectweb.util.monolog.api.Handler;
021:        import org.objectweb.util.monolog.api.BasicLevel;
022:        import org.objectweb.util.monolog.wrapper.common.AbstractFactory;
023:
024:        import java.util.Enumeration;
025:
026:        /**
027:         * Is an extension of the java.util.logging.Logger class used to wrap Monolog
028:         * on the logging system provided in the JDK since the 1.4 version.
029:         *
030:         * @author S.Chassande-Barrioz
031:         */
032:        public class Logger extends java.util.logging.Logger implements 
033:                org.objectweb.util.monolog.api.TopicalLogger {
034:
035:            /**
036:             * indicates if the logger is enabled
037:             */
038:            boolean enabled = true;
039:
040:            /**
041:             * This fieds is the real logger. In some cases inner is equal to this.
042:             */
043:            protected java.util.logging.Logger inner = null;
044:
045:            /**
046:             * Builds a a Logger with an inner logger
047:             * @param inner the real logger
048:             */
049:            protected Logger(java.util.logging.Logger inner) {
050:                super (inner.getName(), inner.getResourceBundleName());
051:                this .inner = inner;
052:            }
053:
054:            /**
055:             * Builds a Logger without inner logger (==> inner = this)
056:             * @param name is the loggerName
057:             * @param resName is the resource bundle name
058:             */
059:            protected Logger(String name, String resName) {
060:                super (name, resName);
061:                this .inner = this ;
062:            }
063:
064:            // OVERRIDE THE java.util.logging.Logger CLASS //
065:            //---------------------------------------------//
066:
067:            public void addHandler(java.util.logging.Handler handler) {
068:                GenericHandler gh = null;
069:                if (handler instanceof  GenericHandler) {
070:                    gh = (GenericHandler) handler;
071:                } else {
072:                    gh = new GenericHandler(handler.toString(), handler);
073:                }
074:                if (inner == this ) {
075:                    super .addHandler(gh);
076:                } else {
077:                    inner.addHandler(gh);
078:                }
079:            }
080:
081:            // IMPLEMENT THE Handler INTERFACE //
082:            //---------------------------------//
083:
084:            /**
085:             * It assigns the name of the handler
086:             */
087:            public void setName(String name) {
088:            }
089:
090:            /**
091:             * It retrieves the Handler type
092:             */
093:            public String getType() {
094:                return "logger";
095:            }
096:
097:            /**
098:             * It retrieves the attributes of the handler
099:             */
100:            public String[] getAttributeNames() {
101:                return new String[0];
102:            }
103:
104:            /**
105:             * It retrieves the value of an attribute value of the handler.
106:             * @param name is an attribute name
107:             */
108:            public Object getAttribute(String name) {
109:                return null;
110:            }
111:
112:            /**
113:             * It assigns an attributte to the handler.
114:             * @param name is the attribute name
115:             * @param value is the attribute value
116:             * @return the old value is the attribute was already defined
117:             */
118:            public Object setAttribute(String name, Object value) {
119:                return null;
120:            }
121:
122:            // IMPLEMENTATION OF org.objectweb.util.monolog.api.TopicalLogger INTERFACE //
123:            //--------------------------------------------------------------------------//
124:            /**
125:             * A TopicalLogger manages a list of Handler instances. This method
126:             * allows adding a handler to this list. The addHandler method returns
127:             * true only if the Handler did not exist
128:             */
129:            public void addHandler(Handler h) throws Exception {
130:                if (inner == this ) {
131:                    super .addHandler((GenericHandler) h);
132:                    if (AbstractFactory.debug) {
133:                        AbstractFactory.debug("logger(" + getName()
134:                                + ").addHandler: " + h.getName() + "=>"
135:                                + super .getHandlers().length);
136:                    }
137:                } else {
138:                    inner.addHandler((GenericHandler) h);
139:                    if (AbstractFactory.debug) {
140:                        AbstractFactory.debug("logger(" + getName()
141:                                + ").addHandler: " + h.getName() + "=>"
142:                                + inner.getHandlers().length);
143:                    }
144:                }
145:            }
146:
147:            /**
148:             * It returns the handler which the name is equals to the parameter
149:             * @param hn is the handler name
150:             * @return an Handler or a null value.
151:             */
152:            public Handler getHandler(String hn) {
153:                Object[] hs;
154:                if (inner == this ) {
155:                    hs = super .getHandlers();
156:                } else {
157:                    hs = inner.getHandlers();
158:                }
159:                for (int i = 0; i < hs.length; i++) {
160:                    if (hs[i] instanceof  Handler
161:                            && hn.equals(((Handler) hs[i]).getName())) {
162:                        return (Handler) hs[i];
163:                    }
164:                }
165:                return null;
166:            }
167:
168:            /**
169:             * Get the Handlers associated with this logger.
170:             * <p>
171:             * @return  an array of all registered Handlers
172:             */
173:            public synchronized Handler[] getHandler() {
174:                Object[] os;
175:                if (inner == this ) {
176:                    os = super .getHandlers();
177:                } else {
178:                    os = inner.getHandlers();
179:                }
180:                Handler[] hs = new Handler[os.length];
181:                for (int i = 0; i < os.length; i++) {
182:                    if (os[i] instanceof  Handler) {
183:                        hs[i] = (Handler) os[i];
184:                    } else {
185:                        hs[i] = new GenericHandler("",
186:                                (java.util.logging.Handler) os[i]);
187:                    }
188:                }
189:                return hs;
190:            }
191:
192:            /**
193:             * A TopicalLogger manages a list of Handler instances. This method
194:             * allows removing a handler to this list.
195:             */
196:            public void removeHandler(Handler h) throws Exception {
197:                if (inner == this ) {
198:                    super .removeHandler((GenericHandler) h);
199:                } else {
200:                    inner.removeHandler((GenericHandler) h);
201:                }
202:            }
203:
204:            /**
205:             * A TopicalLogger manages a list of Handler instances. This method
206:             * allows removing all handler.
207:             */
208:            public void removeAllHandlers() throws Exception {
209:                java.util.logging.Handler[] hs = inner.getHandlers();
210:                if (AbstractFactory.debug) {
211:                    AbstractFactory.debug("logger(" + getName()
212:                            + ").removeAllHandlers(): before: " + hs.length);
213:                }
214:                for (int i = 0; i < hs.length; i++) {
215:                    if (inner == this ) {
216:                        super .removeHandler(hs[i]);
217:                    } else {
218:                        inner.removeHandler(hs[i]);
219:
220:                    }
221:                }
222:                if (AbstractFactory.debug) {
223:                    AbstractFactory.debug("logger(" + getName()
224:                            + ").removeAllHandlers(): before: "
225:                            + inner.getHandlers().length);
226:                }
227:            }
228:
229:            /**
230:             * It assigns the additivity flag for this logger instance.
231:             */
232:            public void setAdditivity(boolean a) {
233:                inner.setUseParentHandlers(a);
234:            }
235:
236:            /**
237:             * It retrieves the additivity flag for this logger instance.
238:             */
239:            public boolean getAdditivity() {
240:                return inner.getUseParentHandlers();
241:            }
242:
243:            /**
244:             *This method allows adding a topic to a TopicalLogger. This actions change
245:             * the hierarchical structure, but also the list of handlers. The list of handlers
246:             * of a TopicalLogger is composed of its handlers and all handlers inherited
247:             * from its parents. Adding a topic changes the inherited handlers list.
248:             */
249:            public void addTopic(String topic) throws Exception {
250:                //TODO: support multiple topic
251:            }
252:
253:            /**
254:             *This method allows getting a topic list of this TopicalLogger.
255:             */
256:            public String[] getTopic() {
257:                //TODO: support multiple topic
258:                return new String[] { AbstractFactory
259:                        .getTopicWithoutPrefix(inner.getName()) };
260:            }
261:
262:            /**
263:             * This method allows getting a topic list of this TopicalLogger.
264:             * Only kept for the backward compatibility.
265:             */
266:            public Enumeration getTopics() {
267:                //TODO:
268:                return null;
269:            }
270:
271:            /**
272:             *This method allows removing a topic to a TopicalLogger. This actions change
273:             * the hierarchical structure, but also the list of handlers. The list of handlers
274:             * of a TopicalLogger is composed of its handlers and all handlers inherited
275:             * from its parents. Removing a topic changes the inherited handlers list.
276:             */
277:            public void removeTopic(String topic) throws Exception {
278:                //TODO: support multiple topic
279:            }
280:
281:            // IMPLEMENTATION OF org.objectweb.util.monolog.api.Logger INTERFACE //
282:            //-------------------------------------------------------------------//
283:
284:            public void setIntLevel(int level) {
285:                inner.setLevel(LevelImpl.int2Level(level));
286:            }
287:
288:            public void setLevel(org.objectweb.util.monolog.api.Level l) {
289:                inner.setLevel(LevelImpl.convertLevel(l));
290:            }
291:
292:            public int getCurrentIntLevel() {
293:                java.util.logging.Level l = getLevel();
294:                return (l == null ? BasicLevel.INHERIT : l.intValue());
295:            }
296:
297:            public Level getCurrentLevel() {
298:                return LevelImpl.getLevel(getCurrentIntLevel());
299:            }
300:
301:            public boolean isLoggable(int l) {
302:                return enabled && super .isLoggable(LevelImpl.int2Level(l));
303:            }
304:
305:            public boolean isLoggable(org.objectweb.util.monolog.api.Level l) {
306:                return enabled && super .isLoggable(LevelImpl.convertLevel(l));
307:            }
308:
309:            public boolean isOn() {
310:                return enabled;
311:            }
312:
313:            public void log(int l, Object o) {
314:                inner.log(LevelImpl.int2Level(l), (o == null ? "null" : o
315:                        .toString()));
316:            }
317:
318:            public void log(Level l, Object o) {
319:                inner.log(LevelImpl.convertLevel(l), (o == null ? "null" : o
320:                        .toString()));
321:            }
322:
323:            public void log(int l, Object o, Throwable t) {
324:                inner.log(LevelImpl.int2Level(l), (o == null ? "null" : o
325:                        .toString()), t);
326:            }
327:
328:            public void log(Level l, Object o, Throwable t) {
329:                inner.log(LevelImpl.convertLevel(l), (o == null ? "null" : o
330:                        .toString()), t);
331:            }
332:
333:            public void log(int level, Object o, Object location, Object method) {
334:                inner.logp(LevelImpl.int2Level(level),
335:                        (location == null ? "null" : location.toString()),
336:                        (method == null ? "null" : method.toString()),
337:                        (o == null ? "null" : o.toString()));
338:            }
339:
340:            public void log(Level l, Object o, Object location, Object method) {
341:                inner.logp(LevelImpl.convertLevel(l),
342:                        (location == null ? "null" : location.toString()),
343:                        (method == null ? "null" : method.toString()),
344:                        (o == null ? "null" : o.toString()));
345:            }
346:
347:            public void log(int level, Object o, Throwable t, Object location,
348:                    Object method) {
349:                inner.logp(LevelImpl.int2Level(level),
350:                        (location == null ? "null" : location.toString()),
351:                        (method == null ? "null" : method.toString()),
352:                        (o == null ? "null" : o.toString()), t);
353:            }
354:
355:            public void log(Level l, Object o, Throwable t, Object location,
356:                    Object method) {
357:                inner.logp(LevelImpl.convertLevel(l),
358:                        (location == null ? "null" : location.toString()),
359:                        (method == null ? "null" : method.toString()),
360:                        (o == null ? "null" : o.toString()), t);
361:            }
362:
363:            public void turnOn() {
364:                enabled = true;
365:            }
366:
367:            public void turnOff() {
368:                enabled = false;
369:            }
370:        }
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