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

changeset 0
373ffda63c9a
child 637
9c07ef4934dd
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/share/jaxws_classes/com/sun/istack/internal/logging/Logger.java	Wed Apr 27 01:27:09 2016 +0800
     1.3 @@ -0,0 +1,515 @@
     1.4 +/*
     1.5 + * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
     1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     1.7 + *
     1.8 + * This code is free software; you can redistribute it and/or modify it
     1.9 + * under the terms of the GNU General Public License version 2 only, as
    1.10 + * published by the Free Software Foundation.  Oracle designates this
    1.11 + * particular file as subject to the "Classpath" exception as provided
    1.12 + * by Oracle in the LICENSE file that accompanied this code.
    1.13 + *
    1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
    1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    1.16 + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    1.17 + * version 2 for more details (a copy is included in the LICENSE file that
    1.18 + * accompanied this code).
    1.19 + *
    1.20 + * You should have received a copy of the GNU General Public License version
    1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
    1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    1.23 + *
    1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    1.25 + * or visit www.oracle.com if you need additional information or have any
    1.26 + * questions.
    1.27 + */
    1.28 +
    1.29 +package com.sun.istack.internal.logging;
    1.30 +
    1.31 +import com.sun.istack.internal.NotNull;
    1.32 +
    1.33 +import java.util.StringTokenizer;
    1.34 +import java.util.logging.Level;
    1.35 +
    1.36 +/**
    1.37 + * This is a helper class that provides some convenience methods wrapped around the
    1.38 + * standard {@link java.util.logging.Logger} interface.
    1.39 + *
    1.40 + * The class also makes sure that logger names of each Metro subsystem are consistent
    1.41 + * with each other.
    1.42 + *
    1.43 + * @author Marek Potociar <marek.potociar at sun.com>
    1.44 + * @author Fabian Ritzmann
    1.45 + */
    1.46 +public class Logger {
    1.47 +
    1.48 +    private static final String WS_LOGGING_SUBSYSTEM_NAME_ROOT = "com.sun.metro";
    1.49 +    private static final String ROOT_WS_PACKAGE = "com.sun.xml.internal.ws.";
    1.50 +    //
    1.51 +    private static final Level METHOD_CALL_LEVEL_VALUE = Level.FINEST;
    1.52 +    //
    1.53 +    private final String componentClassName;
    1.54 +    private final java.util.logging.Logger logger;
    1.55 +
    1.56 +    /**
    1.57 +     * Prevents creation of a new instance of this Logger unless used by a subclass.
    1.58 +     */
    1.59 +    protected Logger(final String systemLoggerName, final String componentName) {
    1.60 +        this.componentClassName = "[" + componentName + "] ";
    1.61 +        this.logger = java.util.logging.Logger.getLogger(systemLoggerName);
    1.62 +    }
    1.63 +
    1.64 +    /**
    1.65 +     * <p>
    1.66 +     * The factory method returns preconfigured Logger wrapper for the class. Method calls
    1.67 +     * {@link #getSystemLoggerName(java.lang.Class)} to generate default logger name.
    1.68 +     * </p>
    1.69 +     * <p>
    1.70 +     * Since there is no caching implemented, it is advised that the method is called only once
    1.71 +     * per a class in order to initialize a final static logger variable, which is then used
    1.72 +     * through the class to perform actual logging tasks.
    1.73 +     * </p>
    1.74 +     *
    1.75 +     * @param componentClass class of the component that will use the logger instance. Must not be {@code null}.
    1.76 +     * @return logger instance preconfigured for use with the component
    1.77 +     * @throws NullPointerException if the componentClass parameter is {@code null}.
    1.78 +     */
    1.79 +    public static @NotNull Logger getLogger(final @NotNull Class<?> componentClass) {
    1.80 +        return new Logger(getSystemLoggerName(componentClass), componentClass.getName());
    1.81 +    }
    1.82 +
    1.83 +    /**
    1.84 +     * The factory method returns preconfigured Logger wrapper for the class. Since there is no caching implemented,
    1.85 +     * it is advised that the method is called only once per a class in order to initialize a final static logger variable,
    1.86 +     * which is then used through the class to perform actual logging tasks.
    1.87 +     *
    1.88 +     * This method should be only used in a special cases when overriding of a default logger name derived from the
    1.89 +     * package of the component class is needed. For all common use cases please use {@link #getLogger(java.lang.Class)}
    1.90 +     * method.
    1.91 +     *
    1.92 +     * @param customLoggerName custom name of the logger.
    1.93 +     * @param componentClass class of the component that will use the logger instance. Must not be {@code null}.
    1.94 +     * @return logger instance preconfigured for use with the component
    1.95 +     * @throws NullPointerException if the componentClass parameter is {@code null}.
    1.96 +     *
    1.97 +     * @see #getLogger(java.lang.Class)
    1.98 +     */
    1.99 +    public static @NotNull Logger getLogger(final @NotNull String customLoggerName, final @NotNull Class<?> componentClass) {
   1.100 +        return new Logger(customLoggerName, componentClass.getName());
   1.101 +    }
   1.102 +
   1.103 +    /**
   1.104 +     * Calculates the subsystem suffix based on the package of the component class
   1.105 +     * @param componentClass class of the component that will use the logger instance. Must not be {@code null}.
   1.106 +     * @return system logger name for the given {@code componentClass} instance
   1.107 +     */
   1.108 +    static final String getSystemLoggerName(@NotNull Class<?> componentClass) {
   1.109 +        StringBuilder sb = new StringBuilder(componentClass.getPackage().getName());
   1.110 +        final int lastIndexOfWsPackage = sb.lastIndexOf(ROOT_WS_PACKAGE);
   1.111 +        if (lastIndexOfWsPackage > -1) {
   1.112 +            sb.replace(0, lastIndexOfWsPackage + ROOT_WS_PACKAGE.length(), "");
   1.113 +
   1.114 +            StringTokenizer st = new StringTokenizer(sb.toString(), ".");
   1.115 +            sb = new StringBuilder(WS_LOGGING_SUBSYSTEM_NAME_ROOT).append(".");
   1.116 +            if (st.hasMoreTokens()) {
   1.117 +                String token = st.nextToken();
   1.118 +                if ("api".equals(token)) {
   1.119 +                    token = st.nextToken();
   1.120 +                }
   1.121 +                sb.append(token);
   1.122 +            }
   1.123 +        }
   1.124 +
   1.125 +        return sb.toString();
   1.126 +    }
   1.127 +
   1.128 +    public void log(final Level level, final String message) {
   1.129 +        if (!this.logger.isLoggable(level)) {
   1.130 +            return;
   1.131 +        }
   1.132 +        logger.logp(level, componentClassName, getCallerMethodName(), message);
   1.133 +    }
   1.134 +
   1.135 +    public void log(final Level level, final String message, Object param1) {
   1.136 +        if (!this.logger.isLoggable(level)) {
   1.137 +            return;
   1.138 +        }
   1.139 +        logger.logp(level, componentClassName, getCallerMethodName(), message, param1);
   1.140 +    }
   1.141 +
   1.142 +    public void log(final Level level, final String message, Object[] params) {
   1.143 +        if (!this.logger.isLoggable(level)) {
   1.144 +            return;
   1.145 +        }
   1.146 +        logger.logp(level, componentClassName, getCallerMethodName(), message, params);
   1.147 +    }
   1.148 +
   1.149 +    public void log(final Level level, final String message, final Throwable thrown) {
   1.150 +        if (!this.logger.isLoggable(level)) {
   1.151 +            return;
   1.152 +        }
   1.153 +        logger.logp(level, componentClassName, getCallerMethodName(), message, thrown);
   1.154 +    }
   1.155 +
   1.156 +    public void finest(final String message) {
   1.157 +        if (!this.logger.isLoggable(Level.FINEST)) {
   1.158 +            return;
   1.159 +        }
   1.160 +        logger.logp(Level.FINEST, componentClassName, getCallerMethodName(), message);
   1.161 +    }
   1.162 +
   1.163 +    public void finest(final String message, Object[] params) {
   1.164 +        if (!this.logger.isLoggable(Level.FINEST)) {
   1.165 +            return;
   1.166 +        }
   1.167 +        logger.logp(Level.FINEST, componentClassName, getCallerMethodName(), message, params);
   1.168 +    }
   1.169 +
   1.170 +    public void finest(final String message, final Throwable thrown) {
   1.171 +        if (!this.logger.isLoggable(Level.FINEST)) {
   1.172 +            return;
   1.173 +        }
   1.174 +        logger.logp(Level.FINEST, componentClassName, getCallerMethodName(), message, thrown);
   1.175 +    }
   1.176 +
   1.177 +    public void finer(final String message) {
   1.178 +        if (!this.logger.isLoggable(Level.FINER)) {
   1.179 +            return;
   1.180 +        }
   1.181 +        logger.logp(Level.FINER, componentClassName, getCallerMethodName(), message);
   1.182 +    }
   1.183 +
   1.184 +    public void finer(final String message, Object[] params) {
   1.185 +        if (!this.logger.isLoggable(Level.FINER)) {
   1.186 +            return;
   1.187 +        }
   1.188 +        logger.logp(Level.FINER, componentClassName, getCallerMethodName(), message, params);
   1.189 +    }
   1.190 +
   1.191 +    public void finer(final String message, final Throwable thrown) {
   1.192 +        if (!this.logger.isLoggable(Level.FINER)) {
   1.193 +            return;
   1.194 +        }
   1.195 +        logger.logp(Level.FINER, componentClassName, getCallerMethodName(), message, thrown);
   1.196 +    }
   1.197 +
   1.198 +    public void fine(final String message) {
   1.199 +        if (!this.logger.isLoggable(Level.FINE)) {
   1.200 +            return;
   1.201 +        }
   1.202 +        logger.logp(Level.FINE, componentClassName, getCallerMethodName(), message);
   1.203 +    }
   1.204 +
   1.205 +    public void fine(final String message, final Throwable thrown) {
   1.206 +        if (!this.logger.isLoggable(Level.FINE)) {
   1.207 +            return;
   1.208 +        }
   1.209 +        logger.logp(Level.FINE, componentClassName, getCallerMethodName(), message, thrown);
   1.210 +    }
   1.211 +
   1.212 +    public void info(final String message) {
   1.213 +        if (!this.logger.isLoggable(Level.INFO)) {
   1.214 +            return;
   1.215 +        }
   1.216 +        logger.logp(Level.INFO, componentClassName, getCallerMethodName(), message);
   1.217 +    }
   1.218 +
   1.219 +    public void info(final String message, Object[] params) {
   1.220 +        if (!this.logger.isLoggable(Level.INFO)) {
   1.221 +            return;
   1.222 +        }
   1.223 +        logger.logp(Level.INFO, componentClassName, getCallerMethodName(), message, params);
   1.224 +    }
   1.225 +
   1.226 +    public void info(final String message, final Throwable thrown) {
   1.227 +        if (!this.logger.isLoggable(Level.INFO)) {
   1.228 +            return;
   1.229 +        }
   1.230 +        logger.logp(Level.INFO, componentClassName, getCallerMethodName(), message, thrown);
   1.231 +    }
   1.232 +
   1.233 +    public void config(final String message) {
   1.234 +        if (!this.logger.isLoggable(Level.CONFIG)) {
   1.235 +            return;
   1.236 +        }
   1.237 +        logger.logp(Level.CONFIG, componentClassName, getCallerMethodName(), message);
   1.238 +    }
   1.239 +
   1.240 +    public void config(final String message, Object[] params) {
   1.241 +        if (!this.logger.isLoggable(Level.CONFIG)) {
   1.242 +            return;
   1.243 +        }
   1.244 +        logger.logp(Level.CONFIG, componentClassName, getCallerMethodName(), message, params);
   1.245 +    }
   1.246 +
   1.247 +    public void config(final String message, final Throwable thrown) {
   1.248 +        if (!this.logger.isLoggable(Level.CONFIG)) {
   1.249 +            return;
   1.250 +        }
   1.251 +        logger.logp(Level.CONFIG, componentClassName, getCallerMethodName(), message, thrown);
   1.252 +    }
   1.253 +
   1.254 +    public void warning(final String message) {
   1.255 +        if (!this.logger.isLoggable(Level.WARNING)) {
   1.256 +            return;
   1.257 +        }
   1.258 +        logger.logp(Level.WARNING, componentClassName, getCallerMethodName(), message);
   1.259 +    }
   1.260 +
   1.261 +    public void warning(final String message, Object[] params) {
   1.262 +        if (!this.logger.isLoggable(Level.WARNING)) {
   1.263 +            return;
   1.264 +        }
   1.265 +        logger.logp(Level.WARNING, componentClassName, getCallerMethodName(), message, params);
   1.266 +    }
   1.267 +
   1.268 +    public void warning(final String message, final Throwable thrown) {
   1.269 +        if (!this.logger.isLoggable(Level.WARNING)) {
   1.270 +            return;
   1.271 +        }
   1.272 +        logger.logp(Level.WARNING, componentClassName, getCallerMethodName(), message, thrown);
   1.273 +    }
   1.274 +
   1.275 +    public void severe(final String message) {
   1.276 +        if (!this.logger.isLoggable(Level.SEVERE)) {
   1.277 +            return;
   1.278 +        }
   1.279 +        logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), message);
   1.280 +    }
   1.281 +
   1.282 +    public void severe(final String message, Object[] params) {
   1.283 +        if (!this.logger.isLoggable(Level.SEVERE)) {
   1.284 +            return;
   1.285 +        }
   1.286 +        logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), message, params);
   1.287 +    }
   1.288 +
   1.289 +    public void severe(final String message, final Throwable thrown) {
   1.290 +        if (!this.logger.isLoggable(Level.SEVERE)) {
   1.291 +            return;
   1.292 +        }
   1.293 +        logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), message, thrown);
   1.294 +    }
   1.295 +
   1.296 +    public boolean isMethodCallLoggable() {
   1.297 +        return this.logger.isLoggable(METHOD_CALL_LEVEL_VALUE);
   1.298 +    }
   1.299 +
   1.300 +    public boolean isLoggable(final Level level) {
   1.301 +        return this.logger.isLoggable(level);
   1.302 +    }
   1.303 +
   1.304 +    public void setLevel(final Level level) {
   1.305 +        this.logger.setLevel(level);
   1.306 +    }
   1.307 +
   1.308 +    public void entering() {
   1.309 +        if (!this.logger.isLoggable(METHOD_CALL_LEVEL_VALUE)) {
   1.310 +            return;
   1.311 +        }
   1.312 +
   1.313 +        logger.entering(componentClassName, getCallerMethodName());
   1.314 +    }
   1.315 +
   1.316 +    public void entering(final Object... parameters) {
   1.317 +        if (!this.logger.isLoggable(METHOD_CALL_LEVEL_VALUE)) {
   1.318 +            return;
   1.319 +        }
   1.320 +
   1.321 +        logger.entering(componentClassName, getCallerMethodName(), parameters);
   1.322 +    }
   1.323 +
   1.324 +    public void exiting() {
   1.325 +        if (!this.logger.isLoggable(METHOD_CALL_LEVEL_VALUE)) {
   1.326 +            return;
   1.327 +        }
   1.328 +        logger.exiting(componentClassName, getCallerMethodName());
   1.329 +    }
   1.330 +
   1.331 +    public void exiting(final Object result) {
   1.332 +        if (!this.logger.isLoggable(METHOD_CALL_LEVEL_VALUE)) {
   1.333 +            return;
   1.334 +        }
   1.335 +        logger.exiting(componentClassName, getCallerMethodName(), result);
   1.336 +    }
   1.337 +
   1.338 +    /**
   1.339 +     * Method logs {@code exception}'s message as a {@code SEVERE} logging level
   1.340 +     * message.
   1.341 +     * <p/>
   1.342 +     * If {@code cause} parameter is not {@code null}, it is logged as well and
   1.343 +     * {@code exception} original cause is initialized with instance referenced
   1.344 +     * by {@code cause} parameter.
   1.345 +     *
   1.346 +     * @param exception exception whose message should be logged. Must not be
   1.347 +     *        {@code null}.
   1.348 +     * @param cause initial cause of the exception that should be logged as well
   1.349 +     *        and set as {@code exception}'s original cause. May be {@code null}.
   1.350 +     * @return the same exception instance that was passed in as the {@code exception}
   1.351 +     *         parameter.
   1.352 +     */
   1.353 +    public <T extends Throwable> T logSevereException(final T exception, final Throwable cause) {
   1.354 +        if (this.logger.isLoggable(Level.SEVERE)) {
   1.355 +            if (cause == null) {
   1.356 +                logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), exception.getMessage());
   1.357 +            } else {
   1.358 +                exception.initCause(cause);
   1.359 +                logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), exception.getMessage(), cause);
   1.360 +            }
   1.361 +        }
   1.362 +
   1.363 +        return exception;
   1.364 +    }
   1.365 +
   1.366 +    /**
   1.367 +     * Method logs {@code exception}'s message as a {@code SEVERE} logging level
   1.368 +     * message.
   1.369 +     * <p/>
   1.370 +     * If {@code logCause} parameter is {@code true}, {@code exception}'s original
   1.371 +     * cause is logged as well (if exists). This may be used in cases when
   1.372 +     * {@code exception}'s class provides constructor to initialize the original
   1.373 +     * cause. In such case you do not need to use
   1.374 +     * {@link #logSevereException(Throwable, Throwable)}
   1.375 +     * method version but you might still want to log the original cause as well.
   1.376 +     *
   1.377 +     * @param exception exception whose message should be logged. Must not be
   1.378 +     *        {@code null}.
   1.379 +     * @param logCause deterimnes whether initial cause of the exception should
   1.380 +     *        be logged as well
   1.381 +     * @return the same exception instance that was passed in as the {@code exception}
   1.382 +     *         parameter.
   1.383 +     */
   1.384 +    public <T extends Throwable> T logSevereException(final T exception, final boolean logCause) {
   1.385 +        if (this.logger.isLoggable(Level.SEVERE)) {
   1.386 +            if (logCause && exception.getCause() != null) {
   1.387 +                logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), exception.getMessage(), exception.getCause());
   1.388 +            } else {
   1.389 +                logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), exception.getMessage());
   1.390 +            }
   1.391 +        }
   1.392 +
   1.393 +        return exception;
   1.394 +    }
   1.395 +
   1.396 +    /**
   1.397 +     * Same as {@link #logSevereException(Throwable, boolean) logSevereException(exception, true)}.
   1.398 +     */
   1.399 +    public <T extends Throwable> T logSevereException(final T exception) {
   1.400 +        if (this.logger.isLoggable(Level.SEVERE)) {
   1.401 +            if (exception.getCause() == null) {
   1.402 +                logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), exception.getMessage());
   1.403 +            } else {
   1.404 +                logger.logp(Level.SEVERE, componentClassName, getCallerMethodName(), exception.getMessage(), exception.getCause());
   1.405 +            }
   1.406 +        }
   1.407 +
   1.408 +        return exception;
   1.409 +    }
   1.410 +
   1.411 +    /**
   1.412 +     * Method logs {@code exception}'s message at the logging level specified by the
   1.413 +     * {@code level} argument.
   1.414 +     * <p/>
   1.415 +     * If {@code cause} parameter is not {@code null}, it is logged as well and
   1.416 +     * {@code exception} original cause is initialized with instance referenced
   1.417 +     * by {@code cause} parameter.
   1.418 +     *
   1.419 +     * @param exception exception whose message should be logged. Must not be
   1.420 +     *        {@code null}.
   1.421 +     * @param cause initial cause of the exception that should be logged as well
   1.422 +     *        and set as {@code exception}'s original cause. May be {@code null}.
   1.423 +     * @param level loging level which should be used for logging
   1.424 +     * @return the same exception instance that was passed in as the {@code exception}
   1.425 +     *         parameter.
   1.426 +     */
   1.427 +    public <T extends Throwable> T logException(final T exception, final Throwable cause, final Level level) {
   1.428 +        if (this.logger.isLoggable(level)) {
   1.429 +            if (cause == null) {
   1.430 +                logger.logp(level, componentClassName, getCallerMethodName(), exception.getMessage());
   1.431 +            } else {
   1.432 +                exception.initCause(cause);
   1.433 +                logger.logp(level, componentClassName, getCallerMethodName(), exception.getMessage(), cause);
   1.434 +            }
   1.435 +        }
   1.436 +
   1.437 +        return exception;
   1.438 +    }
   1.439 +
   1.440 +    /**
   1.441 +     * Method logs {@code exception}'s message at the logging level specified by the
   1.442 +     * {@code level} argument.
   1.443 +     * <p/>
   1.444 +     * If {@code logCause} parameter is {@code true}, {@code exception}'s original
   1.445 +     * cause is logged as well (if exists). This may be used in cases when
   1.446 +     * {@code exception}'s class provides constructor to initialize the original
   1.447 +     * cause. In such case you do not need to use
   1.448 +     * {@link #logException(Throwable, Throwable, Level) logException(exception, cause, level)}
   1.449 +     * method version but you might still want to log the original cause as well.
   1.450 +     *
   1.451 +     * @param exception exception whose message should be logged. Must not be
   1.452 +     *        {@code null}.
   1.453 +     * @param logCause deterimnes whether initial cause of the exception should
   1.454 +     *        be logged as well
   1.455 +     * @param level loging level which should be used for logging
   1.456 +     * @return the same exception instance that was passed in as the {@code exception}
   1.457 +     *         parameter.
   1.458 +     */
   1.459 +    public <T extends Throwable> T logException(final T exception, final boolean logCause, final Level level) {
   1.460 +        if (this.logger.isLoggable(level)) {
   1.461 +            if (logCause && exception.getCause() != null) {
   1.462 +                logger.logp(level, componentClassName, getCallerMethodName(), exception.getMessage(), exception.getCause());
   1.463 +            } else {
   1.464 +                logger.logp(level, componentClassName, getCallerMethodName(), exception.getMessage());
   1.465 +            }
   1.466 +        }
   1.467 +
   1.468 +        return exception;
   1.469 +    }
   1.470 +
   1.471 +    /**
   1.472 +     * Same as {@link #logException(Throwable, Throwable, Level)
   1.473 +     * logException(exception, true, level)}.
   1.474 +     */
   1.475 +    public <T extends Throwable> T logException(final T exception, final Level level) {
   1.476 +        if (this.logger.isLoggable(level)) {
   1.477 +            if (exception.getCause() == null) {
   1.478 +                logger.logp(level, componentClassName, getCallerMethodName(), exception.getMessage());
   1.479 +            } else {
   1.480 +                logger.logp(level, componentClassName, getCallerMethodName(), exception.getMessage(), exception.getCause());
   1.481 +            }
   1.482 +        }
   1.483 +
   1.484 +        return exception;
   1.485 +    }
   1.486 +
   1.487 +    /**
   1.488 +     * Function returns the name of the caller method for the method executing this
   1.489 +     * function.
   1.490 +     *
   1.491 +     * @return caller method name from the call stack of the current {@link Thread}.
   1.492 +     */
   1.493 +    private static String getCallerMethodName() {
   1.494 +        return getStackMethodName(5);
   1.495 +    }
   1.496 +
   1.497 +    /**
   1.498 +     * Method returns the name of the method that is on the {@code methodIndexInStack}
   1.499 +     * position in the call stack of the current {@link Thread}.
   1.500 +     *
   1.501 +     * @param methodIndexInStack index to the call stack to get the method name for.
   1.502 +     * @return the name of the method that is on the {@code methodIndexInStack}
   1.503 +     *         position in the call stack of the current {@link Thread}.
   1.504 +     */
   1.505 +    private static String getStackMethodName(final int methodIndexInStack) {
   1.506 +        final String methodName;
   1.507 +
   1.508 +        final StackTraceElement[] stack = Thread.currentThread().getStackTrace();
   1.509 +        if (stack.length > methodIndexInStack + 1) {
   1.510 +            methodName = stack[methodIndexInStack].getMethodName();
   1.511 +        } else {
   1.512 +            methodName = "UNKNOWN METHOD";
   1.513 +        }
   1.514 +
   1.515 +        return methodName;
   1.516 +    }
   1.517 +
   1.518 +}

mercurial