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Posted to scm@excalibur.apache.org by cz...@apache.org on 2004/07/13 18:56:00 UTC

svn commit: rev 22876 - in excalibur/trunk/containerkit/logger/src/java/org/apache/avalon/excalibur/logger: . log4j

Author: cziegeler
Date: Tue Jul 13 09:55:59 2004
New Revision: 22876

Added:
   excalibur/trunk/containerkit/logger/src/java/org/apache/avalon/excalibur/logger/Log4JLogger.java
Modified:
   excalibur/trunk/containerkit/logger/src/java/org/apache/avalon/excalibur/logger/Log4JLoggerManager.java
   excalibur/trunk/containerkit/logger/src/java/org/apache/avalon/excalibur/logger/log4j/Log4JAdapter.java
Log:
New Log4JLogger implementation that caches the state of the levels.

Added: excalibur/trunk/containerkit/logger/src/java/org/apache/avalon/excalibur/logger/Log4JLogger.java
==============================================================================
--- (empty file)
+++ excalibur/trunk/containerkit/logger/src/java/org/apache/avalon/excalibur/logger/Log4JLogger.java	Tue Jul 13 09:55:59 2004
@@ -0,0 +1,242 @@
+/* 
+ * Copyright 2002-2004 The Apache Software Foundation
+ * Licensed  under the  Apache License,  Version 2.0  (the "License");
+ * you may not use  this file  except in  compliance with the License.
+ * You may obtain a copy of the License at 
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed  under the  License is distributed on an "AS IS" BASIS,
+ * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY KIND, either  express  or
+ * implied.
+ * 
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.avalon.excalibur.logger;
+
+import org.apache.avalon.framework.logger.Logger;
+import org.apache.log4j.Level;
+
+/**
+ * The default Log4J wrapper class for Logger. 
+ * This implementation replaces the implementation from Avalon framework.
+ * It "caches" the log levels for improved performance.
+ * 
+ * @author <a href="mailto:dev@avalon.apache.org">Avalon Development Team</a>
+ * @version CVS $Revision: 1.21 $ $Date: 2004/05/04 13:08:00 $
+ */
+public class Log4JLogger 
+    implements Logger
+{
+    
+    /**
+     * Constant for name of class to use when recording caller
+     * of log method.
+     */
+    private static final String FQCN = Log4JLogger.class.getName();
+
+    /** underlying implementation */
+    private final org.apache.log4j.Logger m_logger;
+
+    private final boolean m_isDebugEnabled;
+    private final boolean m_isInfoEnabled;
+    private final boolean m_isWarnEnabled;
+    private final boolean m_isErrorEnabled;
+    private final boolean m_isFatalErrorEnabled;
+
+    /**
+     * Create a logger that delegates to specified category.
+     *
+     * @param logImpl the category to delegate to
+     */
+    public Log4JLogger( final org.apache.log4j.Logger logImpl )
+    {
+        m_logger = logImpl;
+        m_isDebugEnabled = logImpl.isDebugEnabled();
+        m_isInfoEnabled = logImpl.isInfoEnabled();
+        m_isWarnEnabled = logImpl.isEnabledFor( Level.WARN );
+        m_isErrorEnabled = logImpl.isEnabledFor( Level.ERROR );
+        m_isFatalErrorEnabled = logImpl.isEnabledFor( Level.FATAL );
+    }
+
+    /**
+     * Log a debug message.
+     *
+     * @param message the message
+     */
+    public final void debug( final String message )
+    {
+        if ( m_isDebugEnabled )
+            m_logger.log( FQCN, Level.DEBUG, message, null );
+    }
+
+    /**
+     * Log a debug message.
+     *
+     * @param message the message
+     * @param throwable the throwable
+     */
+    public final void debug( final String message, final Throwable throwable )
+    {
+        if ( m_isDebugEnabled )
+            m_logger.log( FQCN, Level.DEBUG, message, throwable );
+    }
+
+    /**
+     * Determine if messages of priority "debug" will be logged.
+     *
+     * @return true if "debug" messages will be logged
+     */
+    public final boolean isDebugEnabled()
+    {
+        return m_isDebugEnabled;
+    }
+
+    /**
+     * Log a info message.
+     *
+     * @param message the message
+     */
+    public final void info( final String message )
+    {
+        if ( m_isInfoEnabled )
+            m_logger.log( FQCN, Level.INFO, message, null );
+    }
+
+    /**
+     * Log a info message.
+     *
+     * @param message the message
+     * @param throwable the throwable
+     */
+    public final void info( final String message, final Throwable throwable )
+    {
+        if ( m_isInfoEnabled )
+            m_logger.log( FQCN, Level.INFO, message, throwable );
+    }
+
+    /**
+     * Determine if messages of priority "info" will be logged.
+     *
+     * @return true if "info" messages will be logged
+     */
+    public final boolean isInfoEnabled()
+    {
+        return m_isInfoEnabled;
+    }
+
+    /**
+     * Log a warn message.
+     *
+     * @param message the message
+     */
+    public final void warn( final String message )
+    {
+        if ( m_isWarnEnabled )
+            m_logger.log( FQCN, Level.WARN, message, null );
+    }
+
+    /**
+     * Log a warn message.
+     *
+     * @param message the message
+     * @param throwable the throwable
+     */
+    public final void warn( final String message, final Throwable throwable )
+    {
+        if ( m_isWarnEnabled )
+            m_logger.log( FQCN, Level.WARN, message, throwable );
+    }
+
+    /**
+     * Determine if messages of priority "warn" will be logged.
+     *
+     * @return true if "warn" messages will be logged
+     */
+    public final boolean isWarnEnabled()
+    {
+        return m_isWarnEnabled;
+    }
+
+    /**
+     * Log a error message.
+     *
+     * @param message the message
+     */
+    public final void error( final String message )
+    {
+        if ( m_isErrorEnabled )
+            m_logger.log( FQCN, Level.ERROR, message, null );
+    }
+
+    /**
+     * Log a error message.
+     *
+     * @param message the message
+     * @param throwable the throwable
+     */
+    public final void error( final String message, final Throwable throwable )
+    {
+        if ( m_isErrorEnabled )
+            m_logger.log( FQCN, Level.ERROR, message, throwable );
+    }
+
+    /**
+     * Determine if messages of priority "error" will be logged.
+     *
+     * @return true if "error" messages will be logged
+     */
+    public final boolean isErrorEnabled()
+    {
+        return m_isErrorEnabled;
+    }
+
+    /**
+     * Log a fatalError message.
+     *
+     * @param message the message
+     */
+    public final void fatalError( final String message )
+    {
+        if ( m_isFatalErrorEnabled )
+            m_logger.log( FQCN, Level.FATAL, message, null );
+    }
+
+    /**
+     * Log a fatalError message.
+     *
+     * @param message the message
+     * @param throwable the throwable
+     */
+    public final void fatalError( final String message, final Throwable throwable )
+    {
+        if ( m_isFatalErrorEnabled )
+            m_logger.log( FQCN, Level.ERROR, message, throwable );
+    }
+
+    /**
+     * Determine if messages of priority "fatalError" will be logged.
+     *
+     * @return true if "fatalError" messages will be logged
+     */
+    public final boolean isFatalErrorEnabled()
+    {
+        return m_isFatalErrorEnabled;
+    }
+
+    /**
+     * Create a new child logger.
+     * The name of the child logger is [current-loggers-name].[passed-in-name]
+     * Throws <code>IllegalArgumentException</code> if name has an empty element name
+     *
+     * @param name the subname of this logger
+     * @return the new logger
+     */
+    public final Logger getChildLogger( final String name )
+    {
+        return new Log4JLogger( org.apache.log4j.Logger.getLogger( m_logger.getName() + "." + name ) );
+    }
+    
+}

Modified: excalibur/trunk/containerkit/logger/src/java/org/apache/avalon/excalibur/logger/Log4JLoggerManager.java
==============================================================================
--- excalibur/trunk/containerkit/logger/src/java/org/apache/avalon/excalibur/logger/Log4JLoggerManager.java	(original)
+++ excalibur/trunk/containerkit/logger/src/java/org/apache/avalon/excalibur/logger/Log4JLoggerManager.java	Tue Jul 13 09:55:59 2004
@@ -16,7 +16,6 @@
  */
 package org.apache.avalon.excalibur.logger;
 
-import org.apache.avalon.framework.logger.Log4JLogger;
 import org.apache.avalon.framework.logger.Logger;
 import org.apache.log4j.LogManager;
 import org.apache.log4j.spi.LoggerRepository;

Modified: excalibur/trunk/containerkit/logger/src/java/org/apache/avalon/excalibur/logger/log4j/Log4JAdapter.java
==============================================================================
--- excalibur/trunk/containerkit/logger/src/java/org/apache/avalon/excalibur/logger/log4j/Log4JAdapter.java	(original)
+++ excalibur/trunk/containerkit/logger/src/java/org/apache/avalon/excalibur/logger/log4j/Log4JAdapter.java	Tue Jul 13 09:55:59 2004
@@ -18,9 +18,9 @@
 
 import org.apache.avalon.framework.logger.Logger;
 import org.apache.avalon.framework.logger.AbstractLogEnabled;
+import org.apache.avalon.excalibur.logger.Log4JLogger;
 import org.apache.avalon.excalibur.logger.LoggerManager;
 import org.apache.log4j.spi.LoggerRepository;
-import org.apache.avalon.framework.logger.Log4JLogger;
 
 /**
  * This class sits on top of an existing Log4J Hierarchy

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