jaroslav@1258: /*
jaroslav@1258:  * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
jaroslav@1258:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jaroslav@1258:  *
jaroslav@1258:  * This code is free software; you can redistribute it and/or modify it
jaroslav@1258:  * under the terms of the GNU General Public License version 2 only, as
jaroslav@1258:  * published by the Free Software Foundation.  Oracle designates this
jaroslav@1258:  * particular file as subject to the "Classpath" exception as provided
jaroslav@1258:  * by Oracle in the LICENSE file that accompanied this code.
jaroslav@1258:  *
jaroslav@1258:  * This code is distributed in the hope that it will be useful, but WITHOUT
jaroslav@1258:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jaroslav@1258:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jaroslav@1258:  * version 2 for more details (a copy is included in the LICENSE file that
jaroslav@1258:  * accompanied this code).
jaroslav@1258:  *
jaroslav@1258:  * You should have received a copy of the GNU General Public License version
jaroslav@1258:  * 2 along with this work; if not, write to the Free Software Foundation,
jaroslav@1258:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jaroslav@1258:  *
jaroslav@1258:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
jaroslav@1258:  * or visit www.oracle.com if you need additional information or have any
jaroslav@1258:  * questions.
jaroslav@1258:  */
jaroslav@1258: 
jaroslav@1258: package java.util.logging;
jaroslav@1258: import java.util.*;
jaroslav@1258: import java.util.concurrent.atomic.AtomicInteger;
jaroslav@1258: import java.util.concurrent.atomic.AtomicLong;
jaroslav@1258: import java.io.*;
jaroslav@1258: 
jaroslav@1258: import sun.misc.JavaLangAccess;
jaroslav@1258: import sun.misc.SharedSecrets;
jaroslav@1258: 
jaroslav@1258: /**
jaroslav@1258:  * LogRecord objects are used to pass logging requests between
jaroslav@1258:  * the logging framework and individual log Handlers.
jaroslav@1258:  * <p>
jaroslav@1258:  * When a LogRecord is passed into the logging framework it
jaroslav@1258:  * logically belongs to the framework and should no longer be
jaroslav@1258:  * used or updated by the client application.
jaroslav@1258:  * <p>
jaroslav@1258:  * Note that if the client application has not specified an
jaroslav@1258:  * explicit source method name and source class name, then the
jaroslav@1258:  * LogRecord class will infer them automatically when they are
jaroslav@1258:  * first accessed (due to a call on getSourceMethodName or
jaroslav@1258:  * getSourceClassName) by analyzing the call stack.  Therefore,
jaroslav@1258:  * if a logging Handler wants to pass off a LogRecord to another
jaroslav@1258:  * thread, or to transmit it over RMI, and if it wishes to subsequently
jaroslav@1258:  * obtain method name or class name information it should call
jaroslav@1258:  * one of getSourceClassName or getSourceMethodName to force
jaroslav@1258:  * the values to be filled in.
jaroslav@1258:  * <p>
jaroslav@1258:  * <b> Serialization notes:</b>
jaroslav@1258:  * <ul>
jaroslav@1258:  * <li>The LogRecord class is serializable.
jaroslav@1258:  *
jaroslav@1258:  * <li> Because objects in the parameters array may not be serializable,
jaroslav@1258:  * during serialization all objects in the parameters array are
jaroslav@1258:  * written as the corresponding Strings (using Object.toString).
jaroslav@1258:  *
jaroslav@1258:  * <li> The ResourceBundle is not transmitted as part of the serialized
jaroslav@1258:  * form, but the resource bundle name is, and the recipient object's
jaroslav@1258:  * readObject method will attempt to locate a suitable resource bundle.
jaroslav@1258:  *
jaroslav@1258:  * </ul>
jaroslav@1258:  *
jaroslav@1258:  * @since 1.4
jaroslav@1258:  */
jaroslav@1258: 
jaroslav@1258: public class LogRecord implements java.io.Serializable {
jaroslav@1258:     private static final AtomicLong globalSequenceNumber
jaroslav@1258:         = new AtomicLong(0);
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * The default value of threadID will be the current thread's
jaroslav@1258:      * thread id, for ease of correlation, unless it is greater than
jaroslav@1258:      * MIN_SEQUENTIAL_THREAD_ID, in which case we try harder to keep
jaroslav@1258:      * our promise to keep threadIDs unique by avoiding collisions due
jaroslav@1258:      * to 32-bit wraparound.  Unfortunately, LogRecord.getThreadID()
jaroslav@1258:      * returns int, while Thread.getId() returns long.
jaroslav@1258:      */
jaroslav@1258:     private static final int MIN_SEQUENTIAL_THREAD_ID = Integer.MAX_VALUE / 2;
jaroslav@1258: 
jaroslav@1258:     private static final AtomicInteger nextThreadId
jaroslav@1258:         = new AtomicInteger(MIN_SEQUENTIAL_THREAD_ID);
jaroslav@1258: 
jaroslav@1258:     private static final ThreadLocal<Integer> threadIds = new ThreadLocal<>();
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * @serial Logging message level
jaroslav@1258:      */
jaroslav@1258:     private Level level;
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * @serial Sequence number
jaroslav@1258:      */
jaroslav@1258:     private long sequenceNumber;
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * @serial Class that issued logging call
jaroslav@1258:      */
jaroslav@1258:     private String sourceClassName;
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * @serial Method that issued logging call
jaroslav@1258:      */
jaroslav@1258:     private String sourceMethodName;
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * @serial Non-localized raw message text
jaroslav@1258:      */
jaroslav@1258:     private String message;
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * @serial Thread ID for thread that issued logging call.
jaroslav@1258:      */
jaroslav@1258:     private int threadID;
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * @serial Event time in milliseconds since 1970
jaroslav@1258:      */
jaroslav@1258:     private long millis;
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * @serial The Throwable (if any) associated with log message
jaroslav@1258:      */
jaroslav@1258:     private Throwable thrown;
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * @serial Name of the source Logger.
jaroslav@1258:      */
jaroslav@1258:     private String loggerName;
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * @serial Resource bundle name to localized log message.
jaroslav@1258:      */
jaroslav@1258:     private String resourceBundleName;
jaroslav@1258: 
jaroslav@1258:     private transient boolean needToInferCaller;
jaroslav@1258:     private transient Object parameters[];
jaroslav@1258:     private transient ResourceBundle resourceBundle;
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Returns the default value for a new LogRecord's threadID.
jaroslav@1258:      */
jaroslav@1258:     private int defaultThreadID() {
jaroslav@1258:         long tid = Thread.currentThread().getId();
jaroslav@1258:         if (tid < MIN_SEQUENTIAL_THREAD_ID) {
jaroslav@1258:             return (int) tid;
jaroslav@1258:         } else {
jaroslav@1258:             Integer id = threadIds.get();
jaroslav@1258:             if (id == null) {
jaroslav@1258:                 id = nextThreadId.getAndIncrement();
jaroslav@1258:                 threadIds.set(id);
jaroslav@1258:             }
jaroslav@1258:             return id;
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Construct a LogRecord with the given level and message values.
jaroslav@1258:      * <p>
jaroslav@1258:      * The sequence property will be initialized with a new unique value.
jaroslav@1258:      * These sequence values are allocated in increasing order within a VM.
jaroslav@1258:      * <p>
jaroslav@1258:      * The millis property will be initialized to the current time.
jaroslav@1258:      * <p>
jaroslav@1258:      * The thread ID property will be initialized with a unique ID for
jaroslav@1258:      * the current thread.
jaroslav@1258:      * <p>
jaroslav@1258:      * All other properties will be initialized to "null".
jaroslav@1258:      *
jaroslav@1258:      * @param level  a logging level value
jaroslav@1258:      * @param msg  the raw non-localized logging message (may be null)
jaroslav@1258:      */
jaroslav@1258:     public LogRecord(Level level, String msg) {
jaroslav@1258:         // Make sure level isn't null, by calling random method.
jaroslav@1258:         level.getClass();
jaroslav@1258:         this.level = level;
jaroslav@1258:         message = msg;
jaroslav@1258:         // Assign a thread ID and a unique sequence number.
jaroslav@1258:         sequenceNumber = globalSequenceNumber.getAndIncrement();
jaroslav@1258:         threadID = defaultThreadID();
jaroslav@1258:         millis = System.currentTimeMillis();
jaroslav@1258:         needToInferCaller = true;
jaroslav@1258:    }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Get the source Logger's name.
jaroslav@1258:      *
jaroslav@1258:      * @return source logger name (may be null)
jaroslav@1258:      */
jaroslav@1258:     public String getLoggerName() {
jaroslav@1258:         return loggerName;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Set the source Logger's name.
jaroslav@1258:      *
jaroslav@1258:      * @param name   the source logger name (may be null)
jaroslav@1258:      */
jaroslav@1258:     public void setLoggerName(String name) {
jaroslav@1258:         loggerName = name;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Get the localization resource bundle
jaroslav@1258:      * <p>
jaroslav@1258:      * This is the ResourceBundle that should be used to localize
jaroslav@1258:      * the message string before formatting it.  The result may
jaroslav@1258:      * be null if the message is not localizable, or if no suitable
jaroslav@1258:      * ResourceBundle is available.
jaroslav@1258:      */
jaroslav@1258:     public ResourceBundle getResourceBundle() {
jaroslav@1258:         return resourceBundle;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Set the localization resource bundle.
jaroslav@1258:      *
jaroslav@1258:      * @param bundle  localization bundle (may be null)
jaroslav@1258:      */
jaroslav@1258:     public void setResourceBundle(ResourceBundle bundle) {
jaroslav@1258:         resourceBundle = bundle;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Get the localization resource bundle name
jaroslav@1258:      * <p>
jaroslav@1258:      * This is the name for the ResourceBundle that should be
jaroslav@1258:      * used to localize the message string before formatting it.
jaroslav@1258:      * The result may be null if the message is not localizable.
jaroslav@1258:      */
jaroslav@1258:     public String getResourceBundleName() {
jaroslav@1258:         return resourceBundleName;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Set the localization resource bundle name.
jaroslav@1258:      *
jaroslav@1258:      * @param name  localization bundle name (may be null)
jaroslav@1258:      */
jaroslav@1258:     public void setResourceBundleName(String name) {
jaroslav@1258:         resourceBundleName = name;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Get the logging message level, for example Level.SEVERE.
jaroslav@1258:      * @return the logging message level
jaroslav@1258:      */
jaroslav@1258:     public Level getLevel() {
jaroslav@1258:         return level;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Set the logging message level, for example Level.SEVERE.
jaroslav@1258:      * @param level the logging message level
jaroslav@1258:      */
jaroslav@1258:     public void setLevel(Level level) {
jaroslav@1258:         if (level == null) {
jaroslav@1258:             throw new NullPointerException();
jaroslav@1258:         }
jaroslav@1258:         this.level = level;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Get the sequence number.
jaroslav@1258:      * <p>
jaroslav@1258:      * Sequence numbers are normally assigned in the LogRecord
jaroslav@1258:      * constructor, which assigns unique sequence numbers to
jaroslav@1258:      * each new LogRecord in increasing order.
jaroslav@1258:      * @return the sequence number
jaroslav@1258:      */
jaroslav@1258:     public long getSequenceNumber() {
jaroslav@1258:         return sequenceNumber;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Set the sequence number.
jaroslav@1258:      * <p>
jaroslav@1258:      * Sequence numbers are normally assigned in the LogRecord constructor,
jaroslav@1258:      * so it should not normally be necessary to use this method.
jaroslav@1258:      */
jaroslav@1258:     public void setSequenceNumber(long seq) {
jaroslav@1258:         sequenceNumber = seq;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Get the  name of the class that (allegedly) issued the logging request.
jaroslav@1258:      * <p>
jaroslav@1258:      * Note that this sourceClassName is not verified and may be spoofed.
jaroslav@1258:      * This information may either have been provided as part of the
jaroslav@1258:      * logging call, or it may have been inferred automatically by the
jaroslav@1258:      * logging framework.  In the latter case, the information may only
jaroslav@1258:      * be approximate and may in fact describe an earlier call on the
jaroslav@1258:      * stack frame.
jaroslav@1258:      * <p>
jaroslav@1258:      * May be null if no information could be obtained.
jaroslav@1258:      *
jaroslav@1258:      * @return the source class name
jaroslav@1258:      */
jaroslav@1258:     public String getSourceClassName() {
jaroslav@1258:         if (needToInferCaller) {
jaroslav@1258:             inferCaller();
jaroslav@1258:         }
jaroslav@1258:         return sourceClassName;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Set the name of the class that (allegedly) issued the logging request.
jaroslav@1258:      *
jaroslav@1258:      * @param sourceClassName the source class name (may be null)
jaroslav@1258:      */
jaroslav@1258:     public void setSourceClassName(String sourceClassName) {
jaroslav@1258:         this.sourceClassName = sourceClassName;
jaroslav@1258:         needToInferCaller = false;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Get the  name of the method that (allegedly) issued the logging request.
jaroslav@1258:      * <p>
jaroslav@1258:      * Note that this sourceMethodName is not verified and may be spoofed.
jaroslav@1258:      * This information may either have been provided as part of the
jaroslav@1258:      * logging call, or it may have been inferred automatically by the
jaroslav@1258:      * logging framework.  In the latter case, the information may only
jaroslav@1258:      * be approximate and may in fact describe an earlier call on the
jaroslav@1258:      * stack frame.
jaroslav@1258:      * <p>
jaroslav@1258:      * May be null if no information could be obtained.
jaroslav@1258:      *
jaroslav@1258:      * @return the source method name
jaroslav@1258:      */
jaroslav@1258:     public String getSourceMethodName() {
jaroslav@1258:         if (needToInferCaller) {
jaroslav@1258:             inferCaller();
jaroslav@1258:         }
jaroslav@1258:         return sourceMethodName;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Set the name of the method that (allegedly) issued the logging request.
jaroslav@1258:      *
jaroslav@1258:      * @param sourceMethodName the source method name (may be null)
jaroslav@1258:      */
jaroslav@1258:     public void setSourceMethodName(String sourceMethodName) {
jaroslav@1258:         this.sourceMethodName = sourceMethodName;
jaroslav@1258:         needToInferCaller = false;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Get the "raw" log message, before localization or formatting.
jaroslav@1258:      * <p>
jaroslav@1258:      * May be null, which is equivalent to the empty string "".
jaroslav@1258:      * <p>
jaroslav@1258:      * This message may be either the final text or a localization key.
jaroslav@1258:      * <p>
jaroslav@1258:      * During formatting, if the source logger has a localization
jaroslav@1258:      * ResourceBundle and if that ResourceBundle has an entry for
jaroslav@1258:      * this message string, then the message string is replaced
jaroslav@1258:      * with the localized value.
jaroslav@1258:      *
jaroslav@1258:      * @return the raw message string
jaroslav@1258:      */
jaroslav@1258:     public String getMessage() {
jaroslav@1258:         return message;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Set the "raw" log message, before localization or formatting.
jaroslav@1258:      *
jaroslav@1258:      * @param message the raw message string (may be null)
jaroslav@1258:      */
jaroslav@1258:     public void setMessage(String message) {
jaroslav@1258:         this.message = message;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Get the parameters to the log message.
jaroslav@1258:      *
jaroslav@1258:      * @return the log message parameters.  May be null if
jaroslav@1258:      *                  there are no parameters.
jaroslav@1258:      */
jaroslav@1258:     public Object[] getParameters() {
jaroslav@1258:         return parameters;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Set the parameters to the log message.
jaroslav@1258:      *
jaroslav@1258:      * @param parameters the log message parameters. (may be null)
jaroslav@1258:      */
jaroslav@1258:     public void setParameters(Object parameters[]) {
jaroslav@1258:         this.parameters = parameters;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Get an identifier for the thread where the message originated.
jaroslav@1258:      * <p>
jaroslav@1258:      * This is a thread identifier within the Java VM and may or
jaroslav@1258:      * may not map to any operating system ID.
jaroslav@1258:      *
jaroslav@1258:      * @return thread ID
jaroslav@1258:      */
jaroslav@1258:     public int getThreadID() {
jaroslav@1258:         return threadID;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Set an identifier for the thread where the message originated.
jaroslav@1258:      * @param threadID  the thread ID
jaroslav@1258:      */
jaroslav@1258:     public void setThreadID(int threadID) {
jaroslav@1258:         this.threadID = threadID;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Get event time in milliseconds since 1970.
jaroslav@1258:      *
jaroslav@1258:      * @return event time in millis since 1970
jaroslav@1258:      */
jaroslav@1258:     public long getMillis() {
jaroslav@1258:         return millis;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Set event time.
jaroslav@1258:      *
jaroslav@1258:      * @param millis event time in millis since 1970
jaroslav@1258:      */
jaroslav@1258:     public void setMillis(long millis) {
jaroslav@1258:         this.millis = millis;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Get any throwable associated with the log record.
jaroslav@1258:      * <p>
jaroslav@1258:      * If the event involved an exception, this will be the
jaroslav@1258:      * exception object. Otherwise null.
jaroslav@1258:      *
jaroslav@1258:      * @return a throwable
jaroslav@1258:      */
jaroslav@1258:     public Throwable getThrown() {
jaroslav@1258:         return thrown;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Set a throwable associated with the log event.
jaroslav@1258:      *
jaroslav@1258:      * @param thrown  a throwable (may be null)
jaroslav@1258:      */
jaroslav@1258:     public void setThrown(Throwable thrown) {
jaroslav@1258:         this.thrown = thrown;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     private static final long serialVersionUID = 5372048053134512534L;
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * @serialData Default fields, followed by a two byte version number
jaroslav@1258:      * (major byte, followed by minor byte), followed by information on
jaroslav@1258:      * the log record parameter array.  If there is no parameter array,
jaroslav@1258:      * then -1 is written.  If there is a parameter array (possible of zero
jaroslav@1258:      * length) then the array length is written as an integer, followed
jaroslav@1258:      * by String values for each parameter.  If a parameter is null, then
jaroslav@1258:      * a null String is written.  Otherwise the output of Object.toString()
jaroslav@1258:      * is written.
jaroslav@1258:      */
jaroslav@1258:     private void writeObject(ObjectOutputStream out) throws IOException {
jaroslav@1258:         // We have to call defaultWriteObject first.
jaroslav@1258:         out.defaultWriteObject();
jaroslav@1258: 
jaroslav@1258:         // Write our version number.
jaroslav@1258:         out.writeByte(1);
jaroslav@1258:         out.writeByte(0);
jaroslav@1258:         if (parameters == null) {
jaroslav@1258:             out.writeInt(-1);
jaroslav@1258:             return;
jaroslav@1258:         }
jaroslav@1258:         out.writeInt(parameters.length);
jaroslav@1258:         // Write string values for the parameters.
jaroslav@1258:         for (int i = 0; i < parameters.length; i++) {
jaroslav@1258:             if (parameters[i] == null) {
jaroslav@1258:                 out.writeObject(null);
jaroslav@1258:             } else {
jaroslav@1258:                 out.writeObject(parameters[i].toString());
jaroslav@1258:             }
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     private void readObject(ObjectInputStream in)
jaroslav@1258:                         throws IOException, ClassNotFoundException {
jaroslav@1258:         // We have to call defaultReadObject first.
jaroslav@1258:         in.defaultReadObject();
jaroslav@1258: 
jaroslav@1258:         // Read version number.
jaroslav@1258:         byte major = in.readByte();
jaroslav@1258:         byte minor = in.readByte();
jaroslav@1258:         if (major != 1) {
jaroslav@1258:             throw new IOException("LogRecord: bad version: " + major + "." + minor);
jaroslav@1258:         }
jaroslav@1258:         int len = in.readInt();
jaroslav@1258:         if (len == -1) {
jaroslav@1258:             parameters = null;
jaroslav@1258:         } else {
jaroslav@1258:             parameters = new Object[len];
jaroslav@1258:             for (int i = 0; i < parameters.length; i++) {
jaroslav@1258:                 parameters[i] = in.readObject();
jaroslav@1258:             }
jaroslav@1258:         }
jaroslav@1258:         // If necessary, try to regenerate the resource bundle.
jaroslav@1258:         if (resourceBundleName != null) {
jaroslav@1258:             try {
jaroslav@1258:                 resourceBundle = ResourceBundle.getBundle(resourceBundleName);
jaroslav@1258:             } catch (MissingResourceException ex) {
jaroslav@1258:                 // This is not a good place to throw an exception,
jaroslav@1258:                 // so we simply leave the resourceBundle null.
jaroslav@1258:                 resourceBundle = null;
jaroslav@1258:             }
jaroslav@1258:         }
jaroslav@1258: 
jaroslav@1258:         needToInferCaller = false;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     // Private method to infer the caller's class and method names
jaroslav@1258:     private void inferCaller() {
jaroslav@1258:         needToInferCaller = false;
jaroslav@1258:         JavaLangAccess access = SharedSecrets.getJavaLangAccess();
jaroslav@1258:         Throwable throwable = new Throwable();
jaroslav@1258:         int depth = access.getStackTraceDepth(throwable);
jaroslav@1258: 
jaroslav@1258:         boolean lookingForLogger = true;
jaroslav@1258:         for (int ix = 0; ix < depth; ix++) {
jaroslav@1258:             // Calling getStackTraceElement directly prevents the VM
jaroslav@1258:             // from paying the cost of building the entire stack frame.
jaroslav@1258:             StackTraceElement frame =
jaroslav@1258:                 access.getStackTraceElement(throwable, ix);
jaroslav@1258:             String cname = frame.getClassName();
jaroslav@1258:             boolean isLoggerImpl = isLoggerImplFrame(cname);
jaroslav@1258:             if (lookingForLogger) {
jaroslav@1258:                 // Skip all frames until we have found the first logger frame.
jaroslav@1258:                 if (isLoggerImpl) {
jaroslav@1258:                     lookingForLogger = false;
jaroslav@1258:                 }
jaroslav@1258:             } else {
jaroslav@1258:                 if (!isLoggerImpl) {
jaroslav@1258:                     // skip reflection call
jaroslav@1258:                     if (!cname.startsWith("java.lang.reflect.") && !cname.startsWith("sun.reflect.")) {
jaroslav@1258:                        // We've found the relevant frame.
jaroslav@1258:                        setSourceClassName(cname);
jaroslav@1258:                        setSourceMethodName(frame.getMethodName());
jaroslav@1258:                        return;
jaroslav@1258:                     }
jaroslav@1258:                 }
jaroslav@1258:             }
jaroslav@1258:         }
jaroslav@1258:         // We haven't found a suitable frame, so just punt.  This is
jaroslav@1258:         // OK as we are only committed to making a "best effort" here.
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     private boolean isLoggerImplFrame(String cname) {
jaroslav@1258:         // the log record could be created for a platform logger
jaroslav@1258:         return (cname.equals("java.util.logging.Logger") ||
jaroslav@1258:                 cname.startsWith("java.util.logging.LoggingProxyImpl") ||
jaroslav@1258:                 cname.startsWith("sun.util.logging."));
jaroslav@1258:     }
jaroslav@1258: }