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18 package org.apache.logging.log4j.core.tools;
19
20 import java.io.PrintStream;
21 import java.util.ArrayList;
22 import java.util.Arrays;
23 import java.util.List;
24
25 import org.apache.logging.log4j.util.Strings;
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48 public final class Generate {
49
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51
52
53 static final String PACKAGE_DECLARATION = "package %s;%n%n";
54
55 static enum Type {
56 CUSTOM {
57 @Override
58 String imports() {
59 return ""
60 + "import java.io.Serializable;%n"
61 + "import org.apache.logging.log4j.Level;%n"
62 + "import org.apache.logging.log4j.LogManager;%n"
63 + "import org.apache.logging.log4j.Logger;%n"
64 + "import org.apache.logging.log4j.Marker;%n"
65 + "import org.apache.logging.log4j.message.Message;%n"
66 + "import org.apache.logging.log4j.message.MessageFactory;%n"
67 + "import org.apache.logging.log4j.spi.AbstractLogger;%n"
68 + "import org.apache.logging.log4j.spi.ExtendedLoggerWrapper;%n"
69 + "import org.apache.logging.log4j.util.MessageSupplier;%n"
70 + "import org.apache.logging.log4j.util.Supplier;%n"
71 + "%n";
72 }
73
74 @Override
75 String declaration() {
76 return ""
77 + "/**%n"
78 + " * Custom Logger interface with convenience methods for%n"
79 + " * %s%n"
80 + " * <p>Compatible with Log4j 2.6 or higher.</p>%n"
81 + " */%n"
82 + "public final class %s implements Serializable {%n"
83 + " private static final long serialVersionUID = " + System.nanoTime() + "L;%n"
84 + " private final ExtendedLoggerWrapper logger;%n"
85 + "%n";
86 }
87
88 @Override
89 String constructor() {
90 return ""
91 + "%n"
92 + " private %s(final Logger logger) {%n"
93 + " this.logger = new ExtendedLoggerWrapper((AbstractLogger) logger, logger.getName(), "
94 + "logger.getMessageFactory());%n"
95 + " }%n";
96 }
97
98 @Override
99 Class<?> generator() {
100 return CustomLogger.class;
101 }
102 },
103 EXTEND {
104 @Override
105 String imports() {
106 return ""
107 + "import org.apache.logging.log4j.Level;%n"
108 + "import org.apache.logging.log4j.LogManager;%n"
109 + "import org.apache.logging.log4j.Logger;%n"
110 + "import org.apache.logging.log4j.Marker;%n"
111 + "import org.apache.logging.log4j.message.Message;%n"
112 + "import org.apache.logging.log4j.message.MessageFactory;%n"
113 + "import org.apache.logging.log4j.spi.AbstractLogger;%n"
114 + "import org.apache.logging.log4j.spi.ExtendedLoggerWrapper;%n"
115 + "import org.apache.logging.log4j.util.MessageSupplier;%n"
116 + "import org.apache.logging.log4j.util.Supplier;%n"
117 + "%n";
118 }
119
120 @Override
121 String declaration() {
122 return ""
123 + "/**%n"
124 + " * Extended Logger interface with convenience methods for%n"
125 + " * %s%n"
126 + " * <p>Compatible with Log4j 2.6 or higher.</p>%n"
127 + " */%n"
128 + "public final class %s extends ExtendedLoggerWrapper {%n"
129 + " private static final long serialVersionUID = " + System.nanoTime() + "L;%n"
130 + " private final ExtendedLoggerWrapper logger;%n"
131 + "%n";
132 }
133
134 @Override
135 String constructor() {
136 return ""
137 + "%n"
138 + " private %s(final Logger logger) {%n"
139 + " super((AbstractLogger) logger, logger.getName(), logger.getMessageFactory());%n"
140 + " this.logger = this;%n"
141 + " }%n";
142 }
143
144 @Override
145 Class<?> generator() {
146 return ExtendedLogger.class;
147 }
148 };
149 abstract String imports();
150
151 abstract String declaration();
152
153 abstract String constructor();
154
155 abstract Class<?> generator();
156 }
157
158 static final String FQCN_FIELD = ""
159 + " private static final String FQCN = %s.class.getName();%n";
160
161 static final String LEVEL_FIELD = ""
162 + " private static final Level %s = Level.forName(\"%s\", %d);%n";
163
164 static final String FACTORY_METHODS = ""
165 + "%n"
166 + " /**%n"
167 + " * Returns a custom Logger with the name of the calling class.%n"
168 + " * %n"
169 + " * @return The custom Logger for the calling class.%n"
170 + " */%n"
171 + " public static CLASSNAME create() {%n"
172 + " final Logger wrapped = LogManager.getLogger();%n"
173 + " return new CLASSNAME(wrapped);%n"
174 + " }%n"
175 + "%n"
176 + " /**%n"
177 + " * Returns a custom Logger using the fully qualified name of the Class as%n"
178 + " * the Logger name.%n"
179 + " * %n"
180 + " * @param loggerName The Class whose name should be used as the Logger name.%n"
181 + " * If null it will default to the calling class.%n"
182 + " * @return The custom Logger.%n"
183 + " */%n"
184 + " public static CLASSNAME create(final Class<?> loggerName) {%n"
185 + " final Logger wrapped = LogManager.getLogger(loggerName);%n"
186 + " return new CLASSNAME(wrapped);%n"
187 + " }%n"
188 + "%n"
189 + " /**%n"
190 + " * Returns a custom Logger using the fully qualified name of the Class as%n"
191 + " * the Logger name.%n"
192 + " * %n"
193 + " * @param loggerName The Class whose name should be used as the Logger name.%n"
194 + " * If null it will default to the calling class.%n"
195 + " * @param messageFactory The message factory is used only when creating a%n"
196 + " * logger, subsequent use does not change the logger but will log%n"
197 + " * a warning if mismatched.%n"
198 + " * @return The custom Logger.%n"
199 + " */%n"
200 + " public static CLASSNAME create(final Class<?> loggerName, final MessageFactory"
201 + " messageFactory) {%n"
202 + " final Logger wrapped = LogManager.getLogger(loggerName, messageFactory);%n"
203 + " return new CLASSNAME(wrapped);%n"
204 + " }%n"
205 + "%n"
206 + " /**%n"
207 + " * Returns a custom Logger using the fully qualified class name of the value%n"
208 + " * as the Logger name.%n"
209 + " * %n"
210 + " * @param value The value whose class name should be used as the Logger%n"
211 + " * name. If null the name of the calling class will be used as%n"
212 + " * the logger name.%n"
213 + " * @return The custom Logger.%n"
214 + " */%n"
215 + " public static CLASSNAME create(final Object value) {%n"
216 + " final Logger wrapped = LogManager.getLogger(value);%n"
217 + " return new CLASSNAME(wrapped);%n"
218 + " }%n"
219 + "%n"
220 + " /**%n"
221 + " * Returns a custom Logger using the fully qualified class name of the value%n"
222 + " * as the Logger name.%n"
223 + " * %n"
224 + " * @param value The value whose class name should be used as the Logger%n"
225 + " * name. If null the name of the calling class will be used as%n"
226 + " * the logger name.%n"
227 + " * @param messageFactory The message factory is used only when creating a%n"
228 + " * logger, subsequent use does not change the logger but will log%n"
229 + " * a warning if mismatched.%n"
230 + " * @return The custom Logger.%n"
231 + " */%n"
232 + " public static CLASSNAME create(final Object value, final MessageFactory messageFactory) {%n"
233 + " final Logger wrapped = LogManager.getLogger(value, messageFactory);%n"
234 + " return new CLASSNAME(wrapped);%n"
235 + " }%n"
236 + "%n"
237 + " /**%n"
238 + " * Returns a custom Logger with the specified name.%n"
239 + " * %n"
240 + " * @param name The logger name. If null the name of the calling class will%n"
241 + " * be used.%n"
242 + " * @return The custom Logger.%n"
243 + " */%n"
244 + " public static CLASSNAME create(final String name) {%n"
245 + " final Logger wrapped = LogManager.getLogger(name);%n"
246 + " return new CLASSNAME(wrapped);%n"
247 + " }%n"
248 + "%n"
249 + " /**%n"
250 + " * Returns a custom Logger with the specified name.%n"
251 + " * %n"
252 + " * @param name The logger name. If null the name of the calling class will%n"
253 + " * be used.%n"
254 + " * @param messageFactory The message factory is used only when creating a%n"
255 + " * logger, subsequent use does not change the logger but will log%n"
256 + " * a warning if mismatched.%n"
257 + " * @return The custom Logger.%n"
258 + " */%n"
259 + " public static CLASSNAME create(final String name, final MessageFactory messageFactory) {%n"
260 + " final Logger wrapped = LogManager.getLogger(name, messageFactory);%n"
261 + " return new CLASSNAME(wrapped);%n"
262 + " }%n";
263
264 static final String METHODS = ""
265 + "%n"
266 + " /**%n"
267 + " * Logs a message with the specific Marker at the {@code CUSTOM_LEVEL} level.%n"
268 + " * %n"
269 + " * @param marker the marker data specific to this log statement%n"
270 + " * @param msg the message string to be logged%n"
271 + " */%n"
272 + " public void methodName(final Marker marker, final Message msg) {%n"
273 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, msg, (Throwable) null);%n"
274 + " }%n"
275 + "%n"
276 + " /**%n"
277 + " * Logs a message with the specific Marker at the {@code CUSTOM_LEVEL} level.%n"
278 + " * %n"
279 + " * @param marker the marker data specific to this log statement%n"
280 + " * @param msg the message string to be logged%n"
281 + " * @param t A Throwable or null.%n"
282 + " */%n"
283 + " public void methodName(final Marker marker, final Message msg, final Throwable t) {%n"
284 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, msg, t);%n"
285 + " }%n"
286 + "%n"
287 + " /**%n"
288 + " * Logs a message object with the {@code CUSTOM_LEVEL} level.%n"
289 + " * %n"
290 + " * @param marker the marker data specific to this log statement%n"
291 + " * @param message the message object to log.%n"
292 + " */%n"
293 + " public void methodName(final Marker marker, final Object message) {%n"
294 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, (Throwable) null);%n"
295 + " }%n"
296 + "%n"
297 + " /**%n"
298 + " * Logs a message CharSequence with the {@code CUSTOM_LEVEL} level.%n"
299 + " * %n"
300 + " * @param marker the marker data specific to this log statement%n"
301 + " * @param message the message CharSequence to log.%n"
302 + " * @since Log4j-2.6%n"
303 + " */%n"
304 + " public void methodName(final Marker marker, final CharSequence message) {%n"
305 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, (Throwable) null);%n"
306 + " }%n"
307 + "%n"
308 + " /**%n"
309 + " * Logs a message at the {@code CUSTOM_LEVEL} level including the stack trace of%n"
310 + " * the {@link Throwable} {@code t} passed as parameter.%n"
311 + " * %n"
312 + " * @param marker the marker data specific to this log statement%n"
313 + " * @param message the message to log.%n"
314 + " * @param t the exception to log, including its stack trace.%n"
315 + " */%n"
316 + " public void methodName(final Marker marker, final Object message, final Throwable t) {%n"
317 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, t);%n"
318 + " }%n"
319 + "%n"
320 + " /**%n"
321 + " * Logs a message at the {@code CUSTOM_LEVEL} level including the stack trace of%n"
322 + " * the {@link Throwable} {@code t} passed as parameter.%n"
323 + " * %n"
324 + " * @param marker the marker data specific to this log statement%n"
325 + " * @param message the CharSequence to log.%n"
326 + " * @param t the exception to log, including its stack trace.%n"
327 + " * @since Log4j-2.6%n"
328 + " */%n"
329 + " public void methodName(final Marker marker, final CharSequence message, final Throwable t) {%n"
330 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, t);%n"
331 + " }%n"
332 + "%n"
333 + " /**%n"
334 + " * Logs a message object with the {@code CUSTOM_LEVEL} level.%n"
335 + " * %n"
336 + " * @param marker the marker data specific to this log statement%n"
337 + " * @param message the message object to log.%n"
338 + " */%n"
339 + " public void methodName(final Marker marker, final String message) {%n"
340 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, (Throwable) null);%n"
341 + " }%n"
342 + "%n"
343 + " /**%n"
344 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
345 + " * %n"
346 + " * @param marker the marker data specific to this log statement%n"
347 + " * @param message the message to log; the format depends on the message factory.%n"
348 + " * @param params parameters to the message.%n"
349 + " * @see #getMessageFactory()%n"
350 + " */%n"
351 + " public void methodName(final Marker marker, final String message, final Object... params) {%n"
352 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, params);%n"
353 + " }%n"
354 + "%n"
355 + " /**%n"
356 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
357 + " * %n"
358 + " * @param marker the marker data specific to this log statement%n"
359 + " * @param message the message to log; the format depends on the message factory.%n"
360 + " * @param p0 parameter to the message.%n"
361 + " * @see #getMessageFactory()%n"
362 + " * @since Log4j-2.6%n"
363 + " */%n"
364 + " public void methodName(final Marker marker, final String message, final Object p0) {%n"
365 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, p0);%n"
366 + " }%n"
367 + "%n"
368 + " /**%n"
369 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
370 + " * %n"
371 + " * @param marker the marker data specific to this log statement%n"
372 + " * @param message the message to log; the format depends on the message factory.%n"
373 + " * @param p0 parameter to the message.%n"
374 + " * @param p1 parameter to the message.%n"
375 + " * @see #getMessageFactory()%n"
376 + " * @since Log4j-2.6%n"
377 + " */%n"
378 + " public void methodName(final Marker marker, final String message, final Object p0, "
379 + "final Object p1) {%n"
380 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, p0, p1);%n"
381 + " }%n"
382 + "%n"
383 + " /**%n"
384 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
385 + " * %n"
386 + " * @param marker the marker data specific to this log statement%n"
387 + " * @param message the message to log; the format depends on the message factory.%n"
388 + " * @param p0 parameter to the message.%n"
389 + " * @param p1 parameter to the message.%n"
390 + " * @param p2 parameter to the message.%n"
391 + " * @see #getMessageFactory()%n"
392 + " * @since Log4j-2.6%n"
393 + " */%n"
394 + " public void methodName(final Marker marker, final String message, final Object p0, "
395 + "final Object p1, final Object p2) {%n"
396 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, p0, p1, p2);%n"
397 + " }%n"
398 + "%n"
399 + " /**%n"
400 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
401 + " * %n"
402 + " * @param marker the marker data specific to this log statement%n"
403 + " * @param message the message to log; the format depends on the message factory.%n"
404 + " * @param p0 parameter to the message.%n"
405 + " * @param p1 parameter to the message.%n"
406 + " * @param p2 parameter to the message.%n"
407 + " * @param p3 parameter to the message.%n"
408 + " * @see #getMessageFactory()%n"
409 + " * @since Log4j-2.6%n"
410 + " */%n"
411 + " public void methodName(final Marker marker, final String message, final Object p0, "
412 + "final Object p1, final Object p2,%n"
413 + " final Object p3) {%n"
414 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, p0, p1, p2, p3);%n"
415 + " }%n"
416 + "%n"
417 + " /**%n"
418 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
419 + " * %n"
420 + " * @param marker the marker data specific to this log statement%n"
421 + " * @param message the message to log; the format depends on the message factory.%n"
422 + " * @param p0 parameter to the message.%n"
423 + " * @param p1 parameter to the message.%n"
424 + " * @param p2 parameter to the message.%n"
425 + " * @param p3 parameter to the message.%n"
426 + " * @param p4 parameter to the message.%n"
427 + " * @see #getMessageFactory()%n"
428 + " * @since Log4j-2.6%n"
429 + " */%n"
430 + " public void methodName(final Marker marker, final String message, final Object p0, "
431 + "final Object p1, final Object p2,%n"
432 + " final Object p3, final Object p4) {%n"
433 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, p0, p1, p2, p3, p4);%n"
434 + " }%n"
435 + "%n"
436 + " /**%n"
437 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
438 + " * %n"
439 + " * @param marker the marker data specific to this log statement%n"
440 + " * @param message the message to log; the format depends on the message factory.%n"
441 + " * @param p0 parameter to the message.%n"
442 + " * @param p1 parameter to the message.%n"
443 + " * @param p2 parameter to the message.%n"
444 + " * @param p3 parameter to the message.%n"
445 + " * @param p4 parameter to the message.%n"
446 + " * @param p5 parameter to the message.%n"
447 + " * @see #getMessageFactory()%n"
448 + " * @since Log4j-2.6%n"
449 + " */%n"
450 + " public void methodName(final Marker marker, final String message, final Object p0, "
451 + "final Object p1, final Object p2,%n"
452 + " final Object p3, final Object p4, final Object p5) {%n"
453 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, p0, p1, p2, p3, p4, p5);%n"
454 + " }%n"
455 + "%n"
456 + " /**%n"
457 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
458 + " * %n"
459 + " * @param marker the marker data specific to this log statement%n"
460 + " * @param message the message to log; the format depends on the message factory.%n"
461 + " * @param p0 parameter to the message.%n"
462 + " * @param p1 parameter to the message.%n"
463 + " * @param p2 parameter to the message.%n"
464 + " * @param p3 parameter to the message.%n"
465 + " * @param p4 parameter to the message.%n"
466 + " * @param p5 parameter to the message.%n"
467 + " * @param p6 parameter to the message.%n"
468 + " * @see #getMessageFactory()%n"
469 + " * @since Log4j-2.6%n"
470 + " */%n"
471 + " public void methodName(final Marker marker, final String message, final Object p0, "
472 + "final Object p1, final Object p2,%n"
473 + " final Object p3, final Object p4, final Object p5, final Object p6) {%n"
474 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, p0, p1, p2, p3, p4, p5, p6);%n"
475 + " }%n"
476 + "%n"
477 + " /**%n"
478 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
479 + " * %n"
480 + " * @param marker the marker data specific to this log statement%n"
481 + " * @param message the message to log; the format depends on the message factory.%n"
482 + " * @param p0 parameter to the message.%n"
483 + " * @param p1 parameter to the message.%n"
484 + " * @param p2 parameter to the message.%n"
485 + " * @param p3 parameter to the message.%n"
486 + " * @param p4 parameter to the message.%n"
487 + " * @param p5 parameter to the message.%n"
488 + " * @param p6 parameter to the message.%n"
489 + " * @param p7 parameter to the message.%n"
490 + " * @see #getMessageFactory()%n"
491 + " * @since Log4j-2.6%n"
492 + " */%n"
493 + " public void methodName(final Marker marker, final String message, final Object p0, "
494 + "final Object p1, final Object p2,%n"
495 + " final Object p3, final Object p4, final Object p5, final Object p6,%n"
496 + " final Object p7) {%n"
497 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, p0, p1, p2, p3, p4, p5, p6, p7);%n"
498 + " }%n"
499 + "%n"
500 + " /**%n"
501 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
502 + " * %n"
503 + " * @param marker the marker data specific to this log statement%n"
504 + " * @param message the message to log; the format depends on the message factory.%n"
505 + " * @param p0 parameter to the message.%n"
506 + " * @param p1 parameter to the message.%n"
507 + " * @param p2 parameter to the message.%n"
508 + " * @param p3 parameter to the message.%n"
509 + " * @param p4 parameter to the message.%n"
510 + " * @param p5 parameter to the message.%n"
511 + " * @param p6 parameter to the message.%n"
512 + " * @param p7 parameter to the message.%n"
513 + " * @param p8 parameter to the message.%n"
514 + " * @see #getMessageFactory()%n"
515 + " * @since Log4j-2.6%n"
516 + " */%n"
517 + " public void methodName(final Marker marker, final String message, final Object p0, "
518 + "final Object p1, final Object p2,%n"
519 + " final Object p3, final Object p4, final Object p5, final Object p6,%n"
520 + " final Object p7, final Object p8) {%n"
521 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, p0, p1, p2, p3, p4, p5, p6, p7, "
522 + "p8);%n"
523 + " }%n"
524 + "%n"
525 + " /**%n"
526 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
527 + " * %n"
528 + " * @param marker the marker data specific to this log statement%n"
529 + " * @param message the message to log; the format depends on the message factory.%n"
530 + " * @param p0 parameter to the message.%n"
531 + " * @param p1 parameter to the message.%n"
532 + " * @param p2 parameter to the message.%n"
533 + " * @param p3 parameter to the message.%n"
534 + " * @param p4 parameter to the message.%n"
535 + " * @param p5 parameter to the message.%n"
536 + " * @param p6 parameter to the message.%n"
537 + " * @param p7 parameter to the message.%n"
538 + " * @param p8 parameter to the message.%n"
539 + " * @param p9 parameter to the message.%n"
540 + " * @see #getMessageFactory()%n"
541 + " * @since Log4j-2.6%n"
542 + " */%n"
543 + " public void methodName(final Marker marker, final String message, final Object p0, "
544 + "final Object p1, final Object p2,%n"
545 + " final Object p3, final Object p4, final Object p5, final Object p6,%n"
546 + " final Object p7, final Object p8, final Object p9) {%n"
547 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, p0, p1, p2, p3, p4, p5, p6, p7, "
548 + "p8, p9);%n"
549 + " }%n"
550 + "%n"
551 + " /**%n"
552 + " * Logs a message at the {@code CUSTOM_LEVEL} level including the stack trace of%n"
553 + " * the {@link Throwable} {@code t} passed as parameter.%n"
554 + " * %n"
555 + " * @param marker the marker data specific to this log statement%n"
556 + " * @param message the message to log.%n"
557 + " * @param t the exception to log, including its stack trace.%n"
558 + " */%n"
559 + " public void methodName(final Marker marker, final String message, final Throwable t) {%n"
560 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, t);%n"
561 + " }%n"
562 + "%n"
563 + " /**%n"
564 + " * Logs the specified Message at the {@code CUSTOM_LEVEL} level.%n"
565 + " * %n"
566 + " * @param msg the message string to be logged%n"
567 + " */%n"
568 + " public void methodName(final Message msg) {%n"
569 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, msg, (Throwable) null);%n"
570 + " }%n"
571 + "%n"
572 + " /**%n"
573 + " * Logs the specified Message at the {@code CUSTOM_LEVEL} level.%n"
574 + " * %n"
575 + " * @param msg the message string to be logged%n"
576 + " * @param t A Throwable or null.%n"
577 + " */%n"
578 + " public void methodName(final Message msg, final Throwable t) {%n"
579 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, msg, t);%n"
580 + " }%n"
581 + "%n"
582 + " /**%n"
583 + " * Logs a message object with the {@code CUSTOM_LEVEL} level.%n"
584 + " * %n"
585 + " * @param message the message object to log.%n"
586 + " */%n"
587 + " public void methodName(final Object message) {%n"
588 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, (Throwable) null);%n"
589 + " }%n"
590 + "%n"
591 + " /**%n"
592 + " * Logs a message at the {@code CUSTOM_LEVEL} level including the stack trace of%n"
593 + " * the {@link Throwable} {@code t} passed as parameter.%n"
594 + " * %n"
595 + " * @param message the message to log.%n"
596 + " * @param t the exception to log, including its stack trace.%n"
597 + " */%n"
598 + " public void methodName(final Object message, final Throwable t) {%n"
599 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, t);%n"
600 + " }%n"
601 + "%n"
602 + " /**%n"
603 + " * Logs a message CharSequence with the {@code CUSTOM_LEVEL} level.%n"
604 + " * %n"
605 + " * @param message the message CharSequence to log.%n"
606 + " * @since Log4j-2.6%n"
607 + " */%n"
608 + " public void methodName(final CharSequence message) {%n"
609 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, (Throwable) null);%n"
610 + " }%n"
611 + "%n"
612 + " /**%n"
613 + " * Logs a CharSequence at the {@code CUSTOM_LEVEL} level including the stack trace of%n"
614 + " * the {@link Throwable} {@code t} passed as parameter.%n"
615 + " * %n"
616 + " * @param message the CharSequence to log.%n"
617 + " * @param t the exception to log, including its stack trace.%n"
618 + " * @since Log4j-2.6%n"
619 + " */%n"
620 + " public void methodName(final CharSequence message, final Throwable t) {%n"
621 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, t);%n"
622 + " }%n"
623 + "%n"
624 + " /**%n"
625 + " * Logs a message object with the {@code CUSTOM_LEVEL} level.%n"
626 + " * %n"
627 + " * @param message the message object to log.%n"
628 + " */%n"
629 + " public void methodName(final String message) {%n"
630 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, (Throwable) null);%n"
631 + " }%n"
632 + "%n"
633 + " /**%n"
634 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
635 + " * %n"
636 + " * @param message the message to log; the format depends on the message factory.%n"
637 + " * @param params parameters to the message.%n"
638 + " * @see #getMessageFactory()%n"
639 + " */%n"
640 + " public void methodName(final String message, final Object... params) {%n"
641 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, params);%n"
642 + " }%n"
643 + "%n"
644 + " /**%n"
645 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
646 + " * %n"
647 + " * @param message the message to log; the format depends on the message factory.%n"
648 + " * @param p0 parameter to the message.%n"
649 + " * @see #getMessageFactory()%n"
650 + " * @since Log4j-2.6%n"
651 + " */%n"
652 + " public void methodName(final String message, final Object p0) {%n"
653 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, p0);%n"
654 + " }%n"
655 + "%n"
656 + " /**%n"
657 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
658 + " * %n"
659 + " * @param message the message to log; the format depends on the message factory.%n"
660 + " * @param p0 parameter to the message.%n"
661 + " * @param p1 parameter to the message.%n"
662 + " * @see #getMessageFactory()%n"
663 + " * @since Log4j-2.6%n"
664 + " */%n"
665 + " public void methodName(final String message, final Object p0, "
666 + "final Object p1) {%n"
667 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, p0, p1);%n"
668 + " }%n"
669 + "%n"
670 + " /**%n"
671 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
672 + " * %n"
673 + " * @param message the message to log; the format depends on the message factory.%n"
674 + " * @param p0 parameter to the message.%n"
675 + " * @param p1 parameter to the message.%n"
676 + " * @param p2 parameter to the message.%n"
677 + " * @see #getMessageFactory()%n"
678 + " * @since Log4j-2.6%n"
679 + " */%n"
680 + " public void methodName(final String message, final Object p0, "
681 + "final Object p1, final Object p2) {%n"
682 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, p0, p1, p2);%n"
683 + " }%n"
684 + "%n"
685 + " /**%n"
686 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
687 + " * %n"
688 + " * @param message the message to log; the format depends on the message factory.%n"
689 + " * @param p0 parameter to the message.%n"
690 + " * @param p1 parameter to the message.%n"
691 + " * @param p2 parameter to the message.%n"
692 + " * @param p3 parameter to the message.%n"
693 + " * @see #getMessageFactory()%n"
694 + " * @since Log4j-2.6%n"
695 + " */%n"
696 + " public void methodName(final String message, final Object p0, "
697 + "final Object p1, final Object p2,%n"
698 + " final Object p3) {%n"
699 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, p0, p1, p2, p3);%n"
700 + " }%n"
701 + "%n"
702 + " /**%n"
703 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
704 + " * %n"
705 + " * @param message the message to log; the format depends on the message factory.%n"
706 + " * @param p0 parameter to the message.%n"
707 + " * @param p1 parameter to the message.%n"
708 + " * @param p2 parameter to the message.%n"
709 + " * @param p3 parameter to the message.%n"
710 + " * @param p4 parameter to the message.%n"
711 + " * @see #getMessageFactory()%n"
712 + " * @since Log4j-2.6%n"
713 + " */%n"
714 + " public void methodName(final String message, final Object p0, "
715 + "final Object p1, final Object p2,%n"
716 + " final Object p3, final Object p4) {%n"
717 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, p0, p1, p2, p3, p4);%n"
718 + " }%n"
719 + "%n"
720 + " /**%n"
721 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
722 + " * %n"
723 + " * @param message the message to log; the format depends on the message factory.%n"
724 + " * @param p0 parameter to the message.%n"
725 + " * @param p1 parameter to the message.%n"
726 + " * @param p2 parameter to the message.%n"
727 + " * @param p3 parameter to the message.%n"
728 + " * @param p4 parameter to the message.%n"
729 + " * @param p5 parameter to the message.%n"
730 + " * @see #getMessageFactory()%n"
731 + " * @since Log4j-2.6%n"
732 + " */%n"
733 + " public void methodName(final String message, final Object p0, "
734 + "final Object p1, final Object p2,%n"
735 + " final Object p3, final Object p4, final Object p5) {%n"
736 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, p0, p1, p2, p3, p4, p5);%n"
737 + " }%n"
738 + "%n"
739 + " /**%n"
740 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
741 + " * %n"
742 + " * @param message the message to log; the format depends on the message factory.%n"
743 + " * @param p0 parameter to the message.%n"
744 + " * @param p1 parameter to the message.%n"
745 + " * @param p2 parameter to the message.%n"
746 + " * @param p3 parameter to the message.%n"
747 + " * @param p4 parameter to the message.%n"
748 + " * @param p5 parameter to the message.%n"
749 + " * @param p6 parameter to the message.%n"
750 + " * @see #getMessageFactory()%n"
751 + " * @since Log4j-2.6%n"
752 + " */%n"
753 + " public void methodName(final String message, final Object p0, "
754 + "final Object p1, final Object p2,%n"
755 + " final Object p3, final Object p4, final Object p5, final Object p6) {%n"
756 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, p0, p1, p2, p3, p4, p5, p6);%n"
757 + " }%n"
758 + "%n"
759 + " /**%n"
760 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
761 + " * %n"
762 + " * @param message the message to log; the format depends on the message factory.%n"
763 + " * @param p0 parameter to the message.%n"
764 + " * @param p1 parameter to the message.%n"
765 + " * @param p2 parameter to the message.%n"
766 + " * @param p3 parameter to the message.%n"
767 + " * @param p4 parameter to the message.%n"
768 + " * @param p5 parameter to the message.%n"
769 + " * @param p6 parameter to the message.%n"
770 + " * @param p7 parameter to the message.%n"
771 + " * @see #getMessageFactory()%n"
772 + " * @since Log4j-2.6%n"
773 + " */%n"
774 + " public void methodName(final String message, final Object p0, "
775 + "final Object p1, final Object p2,%n"
776 + " final Object p3, final Object p4, final Object p5, final Object p6,%n"
777 + " final Object p7) {%n"
778 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, p0, p1, p2, p3, p4, p5, p6, p7);%n"
779 + " }%n"
780 + "%n"
781 + " /**%n"
782 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
783 + " * %n"
784 + " * @param message the message to log; the format depends on the message factory.%n"
785 + " * @param p0 parameter to the message.%n"
786 + " * @param p1 parameter to the message.%n"
787 + " * @param p2 parameter to the message.%n"
788 + " * @param p3 parameter to the message.%n"
789 + " * @param p4 parameter to the message.%n"
790 + " * @param p5 parameter to the message.%n"
791 + " * @param p6 parameter to the message.%n"
792 + " * @param p7 parameter to the message.%n"
793 + " * @param p8 parameter to the message.%n"
794 + " * @see #getMessageFactory()%n"
795 + " * @since Log4j-2.6%n"
796 + " */%n"
797 + " public void methodName(final String message, final Object p0, "
798 + "final Object p1, final Object p2,%n"
799 + " final Object p3, final Object p4, final Object p5, final Object p6,%n"
800 + " final Object p7, final Object p8) {%n"
801 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, p0, p1, p2, p3, p4, p5, p6, p7, "
802 + "p8);%n"
803 + " }%n"
804 + "%n"
805 + " /**%n"
806 + " * Logs a message with parameters at the {@code CUSTOM_LEVEL} level.%n"
807 + " * %n"
808 + " * @param message the message to log; the format depends on the message factory.%n"
809 + " * @param p0 parameter to the message.%n"
810 + " * @param p1 parameter to the message.%n"
811 + " * @param p2 parameter to the message.%n"
812 + " * @param p3 parameter to the message.%n"
813 + " * @param p4 parameter to the message.%n"
814 + " * @param p5 parameter to the message.%n"
815 + " * @param p6 parameter to the message.%n"
816 + " * @param p7 parameter to the message.%n"
817 + " * @param p8 parameter to the message.%n"
818 + " * @param p9 parameter to the message.%n"
819 + " * @see #getMessageFactory()%n"
820 + " * @since Log4j-2.6%n"
821 + " */%n"
822 + " public void methodName(final String message, final Object p0, "
823 + "final Object p1, final Object p2,%n"
824 + " final Object p3, final Object p4, final Object p5, final Object p6,%n"
825 + " final Object p7, final Object p8, final Object p9) {%n"
826 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, p0, p1, p2, p3, p4, p5, p6, p7, "
827 + "p8, p9);%n"
828 + " }%n"
829 + "%n"
830 + " /**%n"
831 + " * Logs a message at the {@code CUSTOM_LEVEL} level including the stack trace of%n"
832 + " * the {@link Throwable} {@code t} passed as parameter.%n"
833 + " * %n"
834 + " * @param message the message to log.%n"
835 + " * @param t the exception to log, including its stack trace.%n"
836 + " */%n"
837 + " public void methodName(final String message, final Throwable t) {%n"
838 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, t);%n"
839 + " }%n"
840 + "%n"
841 + " /**%n"
842 + " * Logs a message which is only to be constructed if the logging level is the {@code CUSTOM_LEVEL}"
843 + "level.%n"
844 + " *%n"
845 + " * @param msgSupplier A function, which when called, produces the desired log message;%n"
846 + " * the format depends on the message factory.%n"
847 + " * @since Log4j-2.4%n"
848 + " */%n"
849 + " public void methodName(final Supplier<?> msgSupplier) {%n"
850 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, msgSupplier, (Throwable) null);%n"
851 + " }%n"
852 + "%n"
853 + " /**%n"
854 + " * Logs a message (only to be constructed if the logging level is the {@code CUSTOM_LEVEL}%n"
855 + " * level) including the stack trace of the {@link Throwable} <code>t</code> passed as parameter.%n"
856 + " *%n"
857 + " * @param msgSupplier A function, which when called, produces the desired log message;%n"
858 + " * the format depends on the message factory.%n"
859 + " * @param t the exception to log, including its stack trace.%n"
860 + " * @since Log4j-2.4%n"
861 + " */%n"
862 + " public void methodName(final Supplier<?> msgSupplier, final Throwable t) {%n"
863 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, msgSupplier, t);%n"
864 + " }%n"
865 + "%n"
866 + " /**%n"
867 + " * Logs a message which is only to be constructed if the logging level is the%n"
868 + " * {@code CUSTOM_LEVEL} level with the specified Marker.%n"
869 + " *%n"
870 + " * @param marker the marker data specific to this log statement%n"
871 + " * @param msgSupplier A function, which when called, produces the desired log message;%n"
872 + " * the format depends on the message factory.%n"
873 + " * @since Log4j-2.4%n"
874 + " */%n"
875 + " public void methodName(final Marker marker, final Supplier<?> msgSupplier) {%n"
876 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, msgSupplier, (Throwable) null);%n"
877 + " }%n"
878 + "%n"
879 + " /**%n"
880 + " * Logs a message with parameters which are only to be constructed if the logging level is the%n"
881 + " * {@code CUSTOM_LEVEL} level.%n"
882 + " *%n"
883 + " * @param marker the marker data specific to this log statement%n"
884 + " * @param message the message to log; the format depends on the message factory.%n"
885 + " * @param paramSuppliers An array of functions, which when called, produce the desired log"
886 + " message parameters.%n"
887 + " * @since Log4j-2.4%n"
888 + " */%n"
889 + " public void methodName(final Marker marker, final String message, final Supplier<?>..."
890 + " paramSuppliers) {%n"
891 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, message, paramSuppliers);%n"
892 + " }%n"
893 + "%n"
894 + " /**%n"
895 + " * Logs a message (only to be constructed if the logging level is the {@code CUSTOM_LEVEL}%n"
896 + " * level) with the specified Marker and including the stack trace of the {@link Throwable}%n"
897 + " * <code>t</code> passed as parameter.%n"
898 + " *%n"
899 + " * @param marker the marker data specific to this log statement%n"
900 + " * @param msgSupplier A function, which when called, produces the desired log message;%n"
901 + " * the format depends on the message factory.%n"
902 + " * @param t A Throwable or null.%n"
903 + " * @since Log4j-2.4%n"
904 + " */%n"
905 + " public void methodName(final Marker marker, final Supplier<?> msgSupplier, final Throwable t) {%n"
906 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, msgSupplier, t);%n"
907 + " }%n"
908 + "%n"
909 + " /**%n"
910 + " * Logs a message with parameters which are only to be constructed if the logging level is%n"
911 + " * the {@code CUSTOM_LEVEL} level.%n"
912 + " *%n"
913 + " * @param message the message to log; the format depends on the message factory.%n"
914 + " * @param paramSuppliers An array of functions, which when called, produce the desired log"
915 + " message parameters.%n"
916 + " * @since Log4j-2.4%n"
917 + " */%n"
918 + " public void methodName(final String message, final Supplier<?>... paramSuppliers) {%n"
919 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, message, paramSuppliers);%n"
920 + " }%n"
921 + "%n"
922 + " /**%n"
923 + " * Logs a message which is only to be constructed if the logging level is the%n"
924 + " * {@code CUSTOM_LEVEL} level with the specified Marker. The {@code MessageSupplier} may or may%n"
925 + " * not use the {@link MessageFactory} to construct the {@code Message}.%n"
926 + " *%n"
927 + " * @param marker the marker data specific to this log statement%n"
928 + " * @param msgSupplier A function, which when called, produces the desired log message.%n"
929 + " * @since Log4j-2.4%n"
930 + " */%n"
931 + " public void methodName(final Marker marker, final MessageSupplier msgSupplier) {%n"
932 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, msgSupplier, (Throwable) null);%n"
933 + " }%n"
934 + "%n"
935 + " /**%n"
936 + " * Logs a message (only to be constructed if the logging level is the {@code CUSTOM_LEVEL}%n"
937 + " * level) with the specified Marker and including the stack trace of the {@link Throwable}%n"
938 + " * <code>t</code> passed as parameter. The {@code MessageSupplier} may or may not use the%n"
939 + " * {@link MessageFactory} to construct the {@code Message}.%n"
940 + " *%n"
941 + " * @param marker the marker data specific to this log statement%n"
942 + " * @param msgSupplier A function, which when called, produces the desired log message.%n"
943 + " * @param t A Throwable or null.%n"
944 + " * @since Log4j-2.4%n"
945 + " */%n"
946 + " public void methodName(final Marker marker, final MessageSupplier msgSupplier, final "
947 + "Throwable t) {%n"
948 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, marker, msgSupplier, t);%n"
949 + " }%n"
950 + "%n"
951 + " /**%n"
952 + " * Logs a message which is only to be constructed if the logging level is the%n"
953 + " * {@code CUSTOM_LEVEL} level. The {@code MessageSupplier} may or may not use the%n"
954 + " * {@link MessageFactory} to construct the {@code Message}.%n"
955 + " *%n"
956 + " * @param msgSupplier A function, which when called, produces the desired log message.%n"
957 + " * @since Log4j-2.4%n"
958 + " */%n"
959 + " public void methodName(final MessageSupplier msgSupplier) {%n"
960 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, msgSupplier, (Throwable) null);%n"
961 + " }%n"
962 + "%n"
963 + " /**%n"
964 + " * Logs a message (only to be constructed if the logging level is the {@code CUSTOM_LEVEL}%n"
965 + " * level) including the stack trace of the {@link Throwable} <code>t</code> passed as parameter.%n"
966 + " * The {@code MessageSupplier} may or may not use the {@link MessageFactory} to construct the%n"
967 + " * {@code Message}.%n"
968 + " *%n"
969 + " * @param msgSupplier A function, which when called, produces the desired log message.%n"
970 + " * @param t the exception to log, including its stack trace.%n"
971 + " * @since Log4j-2.4%n"
972 + " */%n"
973 + " public void methodName(final MessageSupplier msgSupplier, final Throwable t) {%n"
974 + " logger.logIfEnabled(FQCN, CUSTOM_LEVEL, null, msgSupplier, t);%n"
975 + " }%n";
976
977 private Generate() {
978 }
979
980
981
982
983
984 public static final class CustomLogger {
985
986
987
988
989
990
991
992 public static void main(final String[] args) {
993 generate(args, Type.CUSTOM);
994 }
995
996 private CustomLogger() {
997 }
998 }
999
1000
1001
1002
1003
1004
1005 public static final class ExtendedLogger {
1006
1007
1008
1009
1010
1011
1012
1013 public static void main(final String[] args) {
1014 generate(args, Type.EXTEND);
1015 }
1016
1017 private ExtendedLogger() {
1018 }
1019 }
1020
1021 static class LevelInfo {
1022 final String name;
1023 final int intLevel;
1024
1025 LevelInfo(final String description) {
1026 final String[] parts = description.split("=");
1027 name = parts[0];
1028 intLevel = Integer.parseInt(parts[1]);
1029 }
1030
1031 public static List<LevelInfo> parse(final List<String> values, final Class<?> generator) {
1032 final List<LevelInfo> result = new ArrayList<>(values.size());
1033 for (int i = 0; i < values.size(); i++) {
1034 try {
1035 result.add(new LevelInfo(values.get(i)));
1036 } catch (final Exception ex) {
1037 System.err.println("Cannot parse custom level '" + values.get(i) + "': " + ex.toString());
1038 usage(System.err, generator);
1039 System.exit(-1);
1040 }
1041 }
1042 return result;
1043 }
1044 }
1045
1046 private static void generate(final String[] args, final Type type) {
1047 generate(args, type, System.out);
1048 }
1049
1050 static void generate(final String[] args, final Type type, final PrintStream printStream) {
1051 if (!validate(args)) {
1052 usage(printStream, type.generator());
1053 System.exit(-1);
1054 }
1055 final List<String> values = new ArrayList<>(Arrays.asList(args));
1056 final String classFQN = values.remove(0);
1057 final List<LevelInfo> levels = LevelInfo.parse(values, type.generator());
1058 printStream.println(generateSource(classFQN, levels, type));
1059 }
1060
1061 static boolean validate(final String[] args) {
1062 if (args.length < 2) {
1063 return false;
1064 }
1065 return true;
1066 }
1067
1068 private static void usage(final PrintStream out, final Class<?> generator) {
1069 out.println("Usage: java " + generator.getName() + " className LEVEL1=intLevel1 [LEVEL2=intLevel2...]");
1070 out.println(" Where className is the fully qualified class name of the custom/extended logger");
1071 out.println(" to generate, followed by a space-separated list of custom log levels.");
1072 out.println(" For each custom log level, specify NAME=intLevel (without spaces).");
1073 }
1074
1075 static String generateSource(final String classNameFQN, final List<LevelInfo> levels, final Type type) {
1076 final StringBuilder sb = new StringBuilder(10000 * levels.size());
1077 final int lastDot = classNameFQN.lastIndexOf('.');
1078 final String pkg = classNameFQN.substring(0, lastDot >= 0 ? lastDot : 0);
1079 if (!pkg.isEmpty()) {
1080 sb.append(String.format(PACKAGE_DECLARATION, pkg));
1081 }
1082 sb.append(String.format(type.imports(), ""));
1083 final String className = classNameFQN.substring(classNameFQN.lastIndexOf('.') + 1);
1084 final String javadocDescr = javadocDescription(levels);
1085 sb.append(String.format(type.declaration(), javadocDescr, className));
1086 sb.append(String.format(FQCN_FIELD, className));
1087 for (final LevelInfo level : levels) {
1088 sb.append(String.format(LEVEL_FIELD, level.name, level.name, level.intLevel));
1089 }
1090 sb.append(String.format(type.constructor(), className));
1091 sb.append(String.format(FACTORY_METHODS.replaceAll("CLASSNAME", className), ""));
1092 for (final LevelInfo level : levels) {
1093 final String methodName = camelCase(level.name);
1094 final String phase1 = METHODS.replaceAll("CUSTOM_LEVEL", level.name);
1095 final String phase2 = phase1.replaceAll("methodName", methodName);
1096 sb.append(String.format(phase2, ""));
1097 }
1098
1099 sb.append('}');
1100 sb.append(Strings.LINE_SEPARATOR);
1101 return sb.toString();
1102 }
1103
1104 static String javadocDescription(final List<LevelInfo> levels) {
1105 if (levels.size() == 1) {
1106 return "the " + levels.get(0).name + " custom log level.";
1107 }
1108 final StringBuilder sb = new StringBuilder(512);
1109 sb.append("the ");
1110 String sep = "";
1111 for (int i = 0; i < levels.size(); i++) {
1112 sb.append(sep);
1113 sb.append(levels.get(i).name);
1114 sep = (i == levels.size() - 2) ? " and " : ", ";
1115 }
1116 sb.append(" custom log levels.");
1117 return sb.toString();
1118 }
1119
1120 static String camelCase(final String customLevel) {
1121 final StringBuilder sb = new StringBuilder(customLevel.length());
1122 boolean lower = true;
1123 for (final char ch : customLevel.toCharArray()) {
1124 if (ch == '_') {
1125 lower = false;
1126 continue;
1127 }
1128 sb.append(lower ? Character.toLowerCase(ch) : Character.toUpperCase(ch));
1129 lower = true;
1130 }
1131 return sb.toString();
1132 }
1133 }