src/share/jaxws_classes/com/sun/istack/internal/logging/Logger.java

Tue, 09 Apr 2013 14:51:13 +0100

author
alanb
date
Tue, 09 Apr 2013 14:51:13 +0100
changeset 368
0989ad8c0860
parent 286
f50545b5e2f1
child 637
9c07ef4934dd
permissions
-rw-r--r--

8010393: Update JAX-WS RI to 2.2.9-b12941
Reviewed-by: alanb, erikj
Contributed-by: miroslav.kos@oracle.com, martin.grebac@oracle.com

ohair@286 1 /*
alanb@368 2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
ohair@286 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ohair@286 4 *
ohair@286 5 * This code is free software; you can redistribute it and/or modify it
ohair@286 6 * under the terms of the GNU General Public License version 2 only, as
ohair@286 7 * published by the Free Software Foundation. Oracle designates this
ohair@286 8 * particular file as subject to the "Classpath" exception as provided
ohair@286 9 * by Oracle in the LICENSE file that accompanied this code.
ohair@286 10 *
ohair@286 11 * This code is distributed in the hope that it will be useful, but WITHOUT
ohair@286 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ohair@286 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
ohair@286 14 * version 2 for more details (a copy is included in the LICENSE file that
ohair@286 15 * accompanied this code).
ohair@286 16 *
ohair@286 17 * You should have received a copy of the GNU General Public License version
ohair@286 18 * 2 along with this work; if not, write to the Free Software Foundation,
ohair@286 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ohair@286 20 *
ohair@286 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@286 22 * or visit www.oracle.com if you need additional information or have any
ohair@286 23 * questions.
ohair@286 24 */
ohair@286 25
ohair@286 26 package com.sun.istack.internal.logging;
ohair@286 27
ohair@286 28 import com.sun.istack.internal.NotNull;
ohair@286 29
ohair@286 30 import java.util.StringTokenizer;
ohair@286 31 import java.util.logging.Level;
ohair@286 32
ohair@286 33 /**
alanb@368 34 * This is a helper class that provides some convenience methods wrapped around the
ohair@286 35 * standard {@link java.util.logging.Logger} interface.
ohair@286 36 *
ohair@286 37 * The class also makes sure that logger names of each Metro subsystem are consistent
ohair@286 38 * with each other.
ohair@286 39 *
ohair@286 40 * @author Marek Potociar <marek.potociar at sun.com>
ohair@286 41 * @author Fabian Ritzmann
ohair@286 42 */
ohair@286 43 public class Logger {
ohair@286 44
ohair@286 45 private static final String WS_LOGGING_SUBSYSTEM_NAME_ROOT = "com.sun.metro";
ohair@286 46 private static final String ROOT_WS_PACKAGE = "com.sun.xml.internal.ws.";
ohair@286 47 //
ohair@286 48 private static final Level METHOD_CALL_LEVEL_VALUE = Level.FINEST;
ohair@286 49 //
ohair@286 50 private final String componentClassName;
ohair@286 51 private final java.util.logging.Logger logger;
ohair@286 52
ohair@286 53 /**
ohair@286 54 * Prevents creation of a new instance of this Logger unless used by a subclass.
ohair@286 55 */
ohair@286 56 protected Logger(final String systemLoggerName, final String componentName) {
ohair@286 57 this.componentClassName = "[" + componentName + "] ";
ohair@286 58 this.logger = java.util.logging.Logger.getLogger(systemLoggerName);
ohair@286 59 }
ohair@286 60
ohair@286 61 /**
ohair@286 62 * <p>
ohair@286 63 * The factory method returns preconfigured Logger wrapper for the class. Method calls
ohair@286 64 * {@link #getSystemLoggerName(java.lang.Class)} to generate default logger name.
ohair@286 65 * </p>
ohair@286 66 * <p>
ohair@286 67 * Since there is no caching implemented, it is advised that the method is called only once
ohair@286 68 * per a class in order to initialize a final static logger variable, which is then used
ohair@286 69 * through the class to perform actual logging tasks.
ohair@286 70 * </p>
ohair@286 71 *
ohair@286 72 * @param componentClass class of the component that will use the logger instance. Must not be {@code null}.
ohair@286 73 * @return logger instance preconfigured for use with the component
ohair@286 74 * @throws NullPointerException if the componentClass parameter is {@code null}.
ohair@286 75 */
ohair@286 76 public static @NotNull Logger getLogger(final @NotNull Class<?> componentClass) {
ohair@286 77 return new Logger(getSystemLoggerName(componentClass), componentClass.getName());
ohair@286 78 }
ohair@286 79
ohair@286 80 /**
ohair@286 81 * The factory method returns preconfigured Logger wrapper for the class. Since there is no caching implemented,
ohair@286 82 * it is advised that the method is called only once per a class in order to initialize a final static logger variable,
ohair@286 83 * which is then used through the class to perform actual logging tasks.
ohair@286 84 *
ohair@286 85 * This method should be only used in a special cases when overriding of a default logger name derived from the
ohair@286 86 * package of the component class is needed. For all common use cases please use {@link #getLogger(java.lang.Class)}
ohair@286 87 * method.
ohair@286 88 *
ohair@286 89 * @param customLoggerName custom name of the logger.
ohair@286 90 * @param componentClass class of the component that will use the logger instance. Must not be {@code null}.
ohair@286 91 * @return logger instance preconfigured for use with the component
ohair@286 92 * @throws NullPointerException if the componentClass parameter is {@code null}.
ohair@286 93 *
ohair@286 94 * @see #getLogger(java.lang.Class)
ohair@286 95 */
ohair@286 96 public static @NotNull Logger getLogger(final @NotNull String customLoggerName, final @NotNull Class<?> componentClass) {
ohair@286 97 return new Logger(customLoggerName, componentClass.getName());
ohair@286 98 }
ohair@286 99
ohair@286 100 /**
ohair@286 101 * Calculates the subsystem suffix based on the package of the component class
ohair@286 102 * @param componentClass class of the component that will use the logger instance. Must not be {@code null}.
ohair@286 103 * @return system logger name for the given {@code componentClass} instance
ohair@286 104 */
ohair@286 105 static final String getSystemLoggerName(@NotNull Class<?> componentClass) {
ohair@286 106 StringBuilder sb = new StringBuilder(componentClass.getPackage().getName());
ohair@286 107 final int lastIndexOfWsPackage = sb.lastIndexOf(ROOT_WS_PACKAGE);
ohair@286 108 if (lastIndexOfWsPackage > -1) {
ohair@286 109 sb.replace(0, lastIndexOfWsPackage + ROOT_WS_PACKAGE.length(), "");
ohair@286 110
ohair@286 111 StringTokenizer st = new StringTokenizer(sb.toString(), ".");
ohair@286 112 sb = new StringBuilder(WS_LOGGING_SUBSYSTEM_NAME_ROOT).append(".");
ohair@286 113 if (st.hasMoreTokens()) {
ohair@286 114 String token = st.nextToken();
ohair@286 115 if ("api".equals(token)) {
ohair@286 116 token = st.nextToken();
ohair@286 117 }
ohair@286 118 sb.append(token);
ohair@286 119 }
ohair@286 120 }
ohair@286 121
ohair@286 122 return sb.toString();
ohair@286 123 }
ohair@286 124
ohair@286 125 public void log(final Level level, final String message) {
ohair@286 126 if (!this.logger.isLoggable(level)) {
ohair@286 127 return;
ohair@286 128 }
ohair@286 129 logger.logp(level, componentClassName, getCallerMethodName(), message);
ohair@286 130 }
ohair@286 131
alanb@368 132 public void log(final Level level, final String message, Object param1) {
alanb@368 133 if (!this.logger.isLoggable(level)) {
alanb@368 134 return;
alanb@368 135 }
alanb@368 136 logger.logp(level, componentClassName, getCallerMethodName(), message, param1);
alanb@368 137 }
alanb@368 138
alanb@368 139 public void log(final Level level, final String message, Object[] params) {
alanb@368 140 if (!this.logger.isLoggable(level)) {
alanb@368 141 return;
alanb@368 142 }
alanb@368 143 logger.logp(level, componentClassName, getCallerMethodName(), message, params);
alanb@368 144 }
alanb@368 145
ohair@286 146 public void log(final Level level, final String message, final Throwable thrown) {
ohair@286 147 if (!this.logger.isLoggable(level)) {
ohair@286 148 return;
ohair@286 149 }
ohair@286 150 logger.logp(level, componentClassName, getCallerMethodName(), message, thrown);
ohair@286 151 }
ohair@286 152
ohair@286 153 public void finest(final String message) {
ohair@286 154 if (!this.logger.isLoggable(Level.FINEST)) {
ohair@286 155 return;
ohair@286 156 }
ohair@286 157 logger.logp(Level.FINEST, componentClassName, getCallerMethodName(), message);
ohair@286 158 }
ohair@286 159
alanb@368 160 public void finest(final String message, Object[] params) {
alanb@368 161 if (!this.logger.isLoggable(Level.FINEST)) {
alanb@368 162 return;
alanb@368 163 }
alanb@368 164 logger.logp(Level.FINEST, componentClassName, getCallerMethodName(), message, params);
alanb@368 165 }
alanb@368 166
ohair@286 167 public void finest(final String message, final Throwable thrown) {
ohair@286 168 if (!this.logger.isLoggable(Level.FINEST)) {
ohair@286 169 return;
ohair@286 170 }
ohair@286 171 logger.logp(Level.FINEST, componentClassName, getCallerMethodName(), message, thrown);
ohair@286 172 }
ohair@286 173
ohair@286 174 public void finer(final String message) {
ohair@286 175 if (!this.logger.isLoggable(Level.FINER)) {
ohair@286 176 return;
ohair@286 177 }
ohair@286 178 logger.logp(Level.FINER, componentClassName, getCallerMethodName(), message);
ohair@286 179 }
ohair@286 180
alanb@368 181 public void finer(final String message, Object[] params) {
alanb@368 182 if (!this.logger.isLoggable(Level.FINER)) {
alanb@368 183 return;
alanb@368 184 }
alanb@368 185 logger.logp(Level.FINER, componentClassName, getCallerMethodName(), message, params);
alanb@368 186 }
alanb@368 187
ohair@286 188 public void finer(final String message, final Throwable thrown) {
ohair@286 189 if (!this.logger.isLoggable(Level.FINER)) {
ohair@286 190 return;
ohair@286 191 }
ohair@286 192 logger.logp(Level.FINER, componentClassName, getCallerMethodName(), message, thrown);
ohair@286 193 }
ohair@286 194
ohair@286 195 public void fine(final String message) {
ohair@286 196 if (!this.logger.isLoggable(Level.FINE)) {
ohair@286 197 return;
ohair@286 198 }
ohair@286 199 logger.logp(Level.FINE, componentClassName, getCallerMethodName(), message);
ohair@286 200 }
ohair@286 201
ohair@286 202 public void fine(final String message, final Throwable thrown) {
ohair@286 203 if (!this.logger.isLoggable(Level.FINE)) {
ohair@286 204 return;
ohair@286 205 }
ohair@286 206 logger.logp(Level.FINE, componentClassName, getCallerMethodName(), message, thrown);
ohair@286 207 }
ohair@286 208
ohair@286 209 public void info(final String message) {
ohair@286 210 if (!this.logger.isLoggable(Level.INFO)) {
ohair@286 211 return;
ohair@286 212 }
ohair@286 213 logger.logp(Level.INFO, componentClassName, getCallerMethodName(), message);
ohair@286 214 }
ohair@286 215
alanb@368 216 public void info(final String message, Object[] params) {
alanb@368 217 if (!this.logger.isLoggable(Level.INFO)) {
alanb@368 218 return;
alanb@368 219 }
alanb@368 220 logger.logp(Level.INFO, componentClassName, getCallerMethodName(), message, params);
alanb@368 221 }
alanb@368 222
ohair@286 223 public void info(final String message, final Throwable thrown) {
ohair@286 224 if (!this.logger.isLoggable(Level.INFO)) {
ohair@286 225 return;
ohair@286 226 }
ohair@286 227 logger.logp(Level.INFO, componentClassName, getCallerMethodName(), message, thrown);
ohair@286 228 }
ohair@286 229
ohair@286 230 public void config(final String message) {
ohair@286 231 if (!this.logger.isLoggable(Level.CONFIG)) {
ohair@286 232 return;
ohair@286 233 }
ohair@286 234 logger.logp(Level.CONFIG, componentClassName, getCallerMethodName(), message);
ohair@286 235 }
ohair@286 236
alanb@368 237 public void config(final String message, Object[] params) {
alanb@368 238 if (!this.logger.isLoggable(Level.CONFIG)) {
alanb@368 239 return;
alanb@368 240 }
alanb@368 241 logger.logp(Level.CONFIG, componentClassName, getCallerMethodName(), message, params);
alanb@368 242 }
alanb@368 243
ohair@286 244 public void config(final String message, final Throwable thrown) {
ohair@286 245 if (!this.logger.isLoggable(Level.CONFIG)) {
ohair@286 246 return;
ohair@286 247 }
ohair@286 248 logger.logp(Level.CONFIG, componentClassName, getCallerMethodName(), message, thrown);
ohair@286 249 }
ohair@286 250
ohair@286 251 public void warning(final String message) {
ohair@286 252 if (!this.logger.isLoggable(Level.WARNING)) {
ohair@286 253 return;
ohair@286 254 }
ohair@286 255 logger.logp(Level.WARNING, componentClassName, getCallerMethodName(), message);
ohair@286 256 }
ohair@286 257
alanb@368 258 public void warning(final String message, Object[] params) {
alanb@368 259 if (!this.logger.isLoggable(Level.WARNING)) {
alanb@368 260 return;
alanb@368 261 }
alanb@368 262 logger.logp(Level.WARNING, componentClassName, getCallerMethodName(), message, params);
alanb@368 263 }
alanb@368 264
ohair@286 265 public void warning(final String message, final Throwable thrown) {
ohair@286 266 if (!this.logger.isLoggable(Level.WARNING)) {
ohair@286 267 return;
ohair@286 268 }
ohair@286 269 logger.logp(Level.WARNING, componentClassName, getCallerMethodName(), message, thrown);
ohair@286 270 }
ohair@286 271
ohair@286 272 public void severe(final String message) {
ohair@286 273 if (!this.logger.isLoggable(Level.SEVERE)) {
ohair@286 274 return;
ohair@286 275 }
ohair@286 276 logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), message);
ohair@286 277 }
ohair@286 278
alanb@368 279 public void severe(final String message, Object[] params) {
alanb@368 280 if (!this.logger.isLoggable(Level.SEVERE)) {
alanb@368 281 return;
alanb@368 282 }
alanb@368 283 logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), message, params);
alanb@368 284 }
alanb@368 285
ohair@286 286 public void severe(final String message, final Throwable thrown) {
ohair@286 287 if (!this.logger.isLoggable(Level.SEVERE)) {
ohair@286 288 return;
ohair@286 289 }
ohair@286 290 logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), message, thrown);
ohair@286 291 }
ohair@286 292
ohair@286 293 public boolean isMethodCallLoggable() {
ohair@286 294 return this.logger.isLoggable(METHOD_CALL_LEVEL_VALUE);
ohair@286 295 }
ohair@286 296
ohair@286 297 public boolean isLoggable(final Level level) {
ohair@286 298 return this.logger.isLoggable(level);
ohair@286 299 }
ohair@286 300
ohair@286 301 public void setLevel(final Level level) {
ohair@286 302 this.logger.setLevel(level);
ohair@286 303 }
ohair@286 304
ohair@286 305 public void entering() {
ohair@286 306 if (!this.logger.isLoggable(METHOD_CALL_LEVEL_VALUE)) {
ohair@286 307 return;
ohair@286 308 }
ohair@286 309
ohair@286 310 logger.entering(componentClassName, getCallerMethodName());
ohair@286 311 }
ohair@286 312
ohair@286 313 public void entering(final Object... parameters) {
ohair@286 314 if (!this.logger.isLoggable(METHOD_CALL_LEVEL_VALUE)) {
ohair@286 315 return;
ohair@286 316 }
ohair@286 317
ohair@286 318 logger.entering(componentClassName, getCallerMethodName(), parameters);
ohair@286 319 }
ohair@286 320
ohair@286 321 public void exiting() {
ohair@286 322 if (!this.logger.isLoggable(METHOD_CALL_LEVEL_VALUE)) {
ohair@286 323 return;
ohair@286 324 }
ohair@286 325 logger.exiting(componentClassName, getCallerMethodName());
ohair@286 326 }
ohair@286 327
ohair@286 328 public void exiting(final Object result) {
ohair@286 329 if (!this.logger.isLoggable(METHOD_CALL_LEVEL_VALUE)) {
ohair@286 330 return;
ohair@286 331 }
ohair@286 332 logger.exiting(componentClassName, getCallerMethodName(), result);
ohair@286 333 }
ohair@286 334
ohair@286 335 /**
ohair@286 336 * Method logs {@code exception}'s message as a {@code SEVERE} logging level
ohair@286 337 * message.
ohair@286 338 * <p/>
ohair@286 339 * If {@code cause} parameter is not {@code null}, it is logged as well and
ohair@286 340 * {@code exception} original cause is initialized with instance referenced
ohair@286 341 * by {@code cause} parameter.
ohair@286 342 *
ohair@286 343 * @param exception exception whose message should be logged. Must not be
ohair@286 344 * {@code null}.
ohair@286 345 * @param cause initial cause of the exception that should be logged as well
ohair@286 346 * and set as {@code exception}'s original cause. May be {@code null}.
ohair@286 347 * @return the same exception instance that was passed in as the {@code exception}
ohair@286 348 * parameter.
ohair@286 349 */
ohair@286 350 public <T extends Throwable> T logSevereException(final T exception, final Throwable cause) {
ohair@286 351 if (this.logger.isLoggable(Level.SEVERE)) {
ohair@286 352 if (cause == null) {
ohair@286 353 logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), exception.getMessage());
ohair@286 354 } else {
ohair@286 355 exception.initCause(cause);
ohair@286 356 logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), exception.getMessage(), cause);
ohair@286 357 }
ohair@286 358 }
ohair@286 359
ohair@286 360 return exception;
ohair@286 361 }
ohair@286 362
ohair@286 363 /**
ohair@286 364 * Method logs {@code exception}'s message as a {@code SEVERE} logging level
ohair@286 365 * message.
ohair@286 366 * <p/>
ohair@286 367 * If {@code logCause} parameter is {@code true}, {@code exception}'s original
ohair@286 368 * cause is logged as well (if exists). This may be used in cases when
ohair@286 369 * {@code exception}'s class provides constructor to initialize the original
ohair@286 370 * cause. In such case you do not need to use
ohair@286 371 * {@link #logSevereException(Throwable, Throwable)}
ohair@286 372 * method version but you might still want to log the original cause as well.
ohair@286 373 *
ohair@286 374 * @param exception exception whose message should be logged. Must not be
ohair@286 375 * {@code null}.
ohair@286 376 * @param logCause deterimnes whether initial cause of the exception should
ohair@286 377 * be logged as well
ohair@286 378 * @return the same exception instance that was passed in as the {@code exception}
ohair@286 379 * parameter.
ohair@286 380 */
ohair@286 381 public <T extends Throwable> T logSevereException(final T exception, final boolean logCause) {
ohair@286 382 if (this.logger.isLoggable(Level.SEVERE)) {
ohair@286 383 if (logCause && exception.getCause() != null) {
ohair@286 384 logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), exception.getMessage(), exception.getCause());
ohair@286 385 } else {
ohair@286 386 logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), exception.getMessage());
ohair@286 387 }
ohair@286 388 }
ohair@286 389
ohair@286 390 return exception;
ohair@286 391 }
ohair@286 392
ohair@286 393 /**
ohair@286 394 * Same as {@link #logSevereException(Throwable, boolean) logSevereException(exception, true)}.
ohair@286 395 */
ohair@286 396 public <T extends Throwable> T logSevereException(final T exception) {
ohair@286 397 if (this.logger.isLoggable(Level.SEVERE)) {
ohair@286 398 if (exception.getCause() == null) {
ohair@286 399 logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), exception.getMessage());
ohair@286 400 } else {
ohair@286 401 logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), exception.getMessage(), exception.getCause());
ohair@286 402 }
ohair@286 403 }
ohair@286 404
ohair@286 405 return exception;
ohair@286 406 }
ohair@286 407
ohair@286 408 /**
ohair@286 409 * Method logs {@code exception}'s message at the logging level specified by the
ohair@286 410 * {@code level} argument.
ohair@286 411 * <p/>
ohair@286 412 * If {@code cause} parameter is not {@code null}, it is logged as well and
ohair@286 413 * {@code exception} original cause is initialized with instance referenced
ohair@286 414 * by {@code cause} parameter.
ohair@286 415 *
ohair@286 416 * @param exception exception whose message should be logged. Must not be
ohair@286 417 * {@code null}.
ohair@286 418 * @param cause initial cause of the exception that should be logged as well
ohair@286 419 * and set as {@code exception}'s original cause. May be {@code null}.
ohair@286 420 * @param level loging level which should be used for logging
ohair@286 421 * @return the same exception instance that was passed in as the {@code exception}
ohair@286 422 * parameter.
ohair@286 423 */
ohair@286 424 public <T extends Throwable> T logException(final T exception, final Throwable cause, final Level level) {
ohair@286 425 if (this.logger.isLoggable(level)) {
ohair@286 426 if (cause == null) {
ohair@286 427 logger.logp(level, componentClassName, getCallerMethodName(), exception.getMessage());
ohair@286 428 } else {
ohair@286 429 exception.initCause(cause);
ohair@286 430 logger.logp(level, componentClassName, getCallerMethodName(), exception.getMessage(), cause);
ohair@286 431 }
ohair@286 432 }
ohair@286 433
ohair@286 434 return exception;
ohair@286 435 }
ohair@286 436
ohair@286 437 /**
ohair@286 438 * Method logs {@code exception}'s message at the logging level specified by the
ohair@286 439 * {@code level} argument.
ohair@286 440 * <p/>
ohair@286 441 * If {@code logCause} parameter is {@code true}, {@code exception}'s original
ohair@286 442 * cause is logged as well (if exists). This may be used in cases when
ohair@286 443 * {@code exception}'s class provides constructor to initialize the original
ohair@286 444 * cause. In such case you do not need to use
ohair@286 445 * {@link #logException(Throwable, Throwable, Level) logException(exception, cause, level)}
ohair@286 446 * method version but you might still want to log the original cause as well.
ohair@286 447 *
ohair@286 448 * @param exception exception whose message should be logged. Must not be
ohair@286 449 * {@code null}.
ohair@286 450 * @param logCause deterimnes whether initial cause of the exception should
ohair@286 451 * be logged as well
ohair@286 452 * @param level loging level which should be used for logging
ohair@286 453 * @return the same exception instance that was passed in as the {@code exception}
ohair@286 454 * parameter.
ohair@286 455 */
ohair@286 456 public <T extends Throwable> T logException(final T exception, final boolean logCause, final Level level) {
ohair@286 457 if (this.logger.isLoggable(level)) {
ohair@286 458 if (logCause && exception.getCause() != null) {
ohair@286 459 logger.logp(level, componentClassName, getCallerMethodName(), exception.getMessage(), exception.getCause());
ohair@286 460 } else {
ohair@286 461 logger.logp(level, componentClassName, getCallerMethodName(), exception.getMessage());
ohair@286 462 }
ohair@286 463 }
ohair@286 464
ohair@286 465 return exception;
ohair@286 466 }
ohair@286 467
ohair@286 468 /**
ohair@286 469 * Same as {@link #logException(Throwable, Throwable, Level)
ohair@286 470 * logException(exception, true, level)}.
ohair@286 471 */
ohair@286 472 public <T extends Throwable> T logException(final T exception, final Level level) {
ohair@286 473 if (this.logger.isLoggable(level)) {
ohair@286 474 if (exception.getCause() == null) {
ohair@286 475 logger.logp(level, componentClassName, getCallerMethodName(), exception.getMessage());
ohair@286 476 } else {
ohair@286 477 logger.logp(level, componentClassName, getCallerMethodName(), exception.getMessage(), exception.getCause());
ohair@286 478 }
ohair@286 479 }
ohair@286 480
ohair@286 481 return exception;
ohair@286 482 }
ohair@286 483
ohair@286 484 /**
ohair@286 485 * Function returns the name of the caller method for the method executing this
ohair@286 486 * function.
ohair@286 487 *
ohair@286 488 * @return caller method name from the call stack of the current {@link Thread}.
ohair@286 489 */
ohair@286 490 private static String getCallerMethodName() {
ohair@286 491 return getStackMethodName(5);
ohair@286 492 }
ohair@286 493
ohair@286 494 /**
ohair@286 495 * Method returns the name of the method that is on the {@code methodIndexInStack}
ohair@286 496 * position in the call stack of the current {@link Thread}.
ohair@286 497 *
ohair@286 498 * @param methodIndexInStack index to the call stack to get the method name for.
ohair@286 499 * @return the name of the method that is on the {@code methodIndexInStack}
ohair@286 500 * position in the call stack of the current {@link Thread}.
ohair@286 501 */
ohair@286 502 private static String getStackMethodName(final int methodIndexInStack) {
ohair@286 503 final String methodName;
ohair@286 504
ohair@286 505 final StackTraceElement[] stack = Thread.currentThread().getStackTrace();
ohair@286 506 if (stack.length > methodIndexInStack + 1) {
ohair@286 507 methodName = stack[methodIndexInStack].getMethodName();
ohair@286 508 } else {
ohair@286 509 methodName = "UNKNOWN METHOD";
ohair@286 510 }
ohair@286 511
ohair@286 512 return methodName;
ohair@286 513 }
ohair@286 514
ohair@286 515 }

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