/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2006-2008 Sun Microsystems, Inc.
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* Portions Copyright 2013-2015 ForgeRock AS
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*/
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package org.opends.server.loggers;
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import static org.opends.messages.ConfigMessages.*;
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import java.util.Collection;
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import org.forgerock.i18n.LocalizableMessage;
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import org.opends.messages.Severity;
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import org.opends.server.admin.ClassPropertyDefinition;
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import org.opends.server.admin.std.meta.ErrorLogPublisherCfgDefn;
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import org.opends.server.admin.std.server.ErrorLogPublisherCfg;
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import org.opends.server.api.DirectoryThread;
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import org.opends.server.backends.task.Task;
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/**
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* This class defines the wrapper that will invoke all registered error loggers
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* for each type of request received or response sent. If no error log
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* publishers are registered, messages will be directed to standard out.
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*/
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public class ErrorLogger extends AbstractLogger
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<ErrorLogPublisher<ErrorLogPublisherCfg>, ErrorLogPublisherCfg>
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{
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private static LoggerStorage
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<ErrorLogPublisher<ErrorLogPublisherCfg>, ErrorLogPublisherCfg>
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loggerStorage = new LoggerStorage<>();
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/** The singleton instance of this class for configuration purposes. */
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private static final ErrorLogger instance = new ErrorLogger();
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/**
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* Retrieve the singleton instance of this class.
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*
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* @return The singleton instance of this logger.
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*/
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public static ErrorLogger getInstance()
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{
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return instance;
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}
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/**
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* The constructor for this class.
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*/
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private ErrorLogger()
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{
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super((Class) ErrorLogPublisher.class,
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ERR_CONFIG_LOGGER_INVALID_ERROR_LOGGER_CLASS);
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}
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/** {@inheritDoc} */
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@Override
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protected ClassPropertyDefinition getJavaClassPropertyDefinition()
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{
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return ErrorLogPublisherCfgDefn.getInstance()
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.getJavaClassPropertyDefinition();
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}
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/** {@inheritDoc} */
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@Override
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protected Collection<ErrorLogPublisher<ErrorLogPublisherCfg>> getLogPublishers()
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{
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return loggerStorage.getLogPublishers();
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}
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/**
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* Writes a message to the error log using the provided information.
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* <p>
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* Category is defined using either short name (used for classes in well
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* defined packages) or fully qualified classname. Conversion to short name is
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* done automatically when loggers are created, see
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* {@code LoggingCategoryNames} for list of existing short names.
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*
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* @param category
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* The category of the message, which is either a classname or a
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* simple category name defined in {@code LoggingCategoryNames}
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* class.
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* @param severity
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* The severity of the message.
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* @param message
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* The message to be logged.
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* @param exception
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* The exception to be logged. May be {@code null}.
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*/
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static void log(String category, Severity severity, LocalizableMessage message, Throwable exception)
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{
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for (ErrorLogPublisher<?> publisher : loggerStorage.getLogPublishers())
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{
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publisher.log(category, severity, message, exception);
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}
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if (Thread.currentThread() instanceof DirectoryThread)
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{
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DirectoryThread thread = (DirectoryThread) Thread.currentThread();
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Task task = thread.getAssociatedTask();
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if (task != null)
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{
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task.addLogMessage(severity, message, exception);
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}
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}
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}
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/**
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* Check if logging is enabled for the provided category and severity.
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*
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* @param category
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* The category of the logging event, which is either a classname or
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* a simple category name defined in {@code LoggingCategoryNames}
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* class.
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* @param severity
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* The severity of logging event.
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* @return {@code true} if logger is enabled
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*/
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static boolean isEnabledFor(String category, Severity severity)
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{
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if (Thread.currentThread() instanceof DirectoryThread)
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{
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DirectoryThread thread = (DirectoryThread) Thread.currentThread();
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Task task = thread.getAssociatedTask();
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if (task != null)
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{
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return true;
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}
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}
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for (ErrorLogPublisher<ErrorLogPublisherCfg> publisher : loggerStorage.getLogPublishers())
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{
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if (publisher.isEnabledFor(category, severity))
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{
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return true;
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}
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}
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return false;
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}
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/** {@inheritDoc} */
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@Override
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public final synchronized void addLogPublisher(
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ErrorLogPublisher<ErrorLogPublisherCfg> publisher)
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{
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loggerStorage.addLogPublisher(publisher);
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}
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/** {@inheritDoc} */
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@Override
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public final synchronized boolean removeLogPublisher(
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ErrorLogPublisher<ErrorLogPublisherCfg> publisher)
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{
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return loggerStorage.removeLogPublisher(publisher);
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}
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/** {@inheritDoc} */
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@Override
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public final synchronized void removeAllLogPublishers()
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{
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loggerStorage.removeAllLogPublishers();
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}
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}
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