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30 day Evaluation Version distributed via the Maven Jar Repository. Clover is not free. You have 30 days to evaluate it. Please visit http://www.thecortex.net/clover to obtain a licensed version of Clover | |||||||||||||||||||
Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
ConsoleLogger.java | 100% | 100% | 100% | 100% |
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/*
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* Copyright (C) The JContainer Group. All rights reserved.
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*
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* This software is published under the terms of the JContainer
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* Software License version 1.1, a copy of which has been included
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* with this distribution in the LICENSE.txt file.
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*/
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package org.jcontainer.dna.impl;
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import org.jcontainer.dna.Logger;
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import java.io.PrintStream;
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/**
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* A simple logger facade that simply writes to the Console.
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*
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* @version $Revision: 1.10 $ $Date: 2003/10/09 01:51:49 $
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*/
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public class ConsoleLogger |
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implements Logger
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{ |
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/**
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* Constant to indicate that the logger
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* must log all levels.
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*/
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public static final int LEVEL_ALL = 0; |
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/**
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* Constant to indicate that the logger
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* must log all levels TRACE and above.
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*/
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public static final int LEVEL_TRACE = 1; |
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/**
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* Constant to indicate that the logger
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* must log all levels DEBUG and above.
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*/
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public static final int LEVEL_DEBUG = 2; |
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/**
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* Constant to indicate that the logger
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* must log all levels INFO and above.
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*/
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public static final int LEVEL_INFO = 3; |
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/**
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* Constant to indicate that the logger
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* must log all levels WARN and above.
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*/
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public static final int LEVEL_WARN = 4; |
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/**
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* Constant to indicate that the logger
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* must log all levels ERROR and above.
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*/
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public static final int LEVEL_ERROR = 5; |
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/**
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* Constant to indicate that the logger
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* must not log any messages.
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*/
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public static final int LEVEL_NONE = 6; |
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/**
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* String constant used to output TRACE messages.
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*/
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private static final String LEVEL_TRACE_STR = "TRACE"; |
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/**
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* String constant used to output DEBUG messages.
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*/
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private static final String LEVEL_DEBUG_STR = "DEBUG"; |
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/**
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* String constant used to output INFO messages.
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*/
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private static final String LEVEL_INFO_STR = "INFO"; |
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/**
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* String constant used to output WARN messages.
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*/
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private static final String LEVEL_WARN_STR = "WARN"; |
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/**
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* String constant used to output ERROR messages.
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*/
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private static final String LEVEL_ERROR_STR = "ERROR"; |
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/**
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* The log level.
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*/
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private final int m_level; |
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/**
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* The output location.
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*/
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private final PrintStream m_output;
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/**
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* Create a Console Logger that logs all messages.
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*/
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public ConsoleLogger()
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{ |
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this( LEVEL_ALL );
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} |
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/**
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* Create a Console Logger that logs at specified level.
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*
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* @param level one of the LEVEL_* constants
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*/
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public ConsoleLogger( final int level ) |
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{ |
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this( level, System.out );
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} |
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/**
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* Create a Console Logger that logs at specified level.
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*
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* @param level one of the LEVEL_* constants
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* @param output the stream to output to
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*/
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public ConsoleLogger( final int level, |
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final PrintStream output ) |
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{ |
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if( null == output ) |
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{ |
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throw new NullPointerException( "output" ); |
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} |
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m_level = level; |
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m_output = output; |
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} |
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/**
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* Log a trace message.
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*
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* @param message the message
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*/
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public void trace( final String message ) |
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{ |
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trace( message, null );
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} |
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/**
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* Log a trace message with an associated throwable.
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*
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* @param message the message
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* @param throwable the throwable
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*/
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public void trace( final String message, |
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final Throwable throwable ) |
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{ |
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output( LEVEL_TRACE, LEVEL_TRACE_STR, message, throwable ); |
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} |
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/**
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* Return true if a trace message will be logged.
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*
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* @return true if message will be logged
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*/
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public boolean isTraceEnabled() |
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{ |
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return m_level <= LEVEL_TRACE;
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} |
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/**
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* Log a debug message.
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*
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* @param message the message
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*/
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public void debug( final String message ) |
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{ |
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debug( message, null );
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} |
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/**
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* Log a debug message with an associated throwable.
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*
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* @param message the message
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* @param throwable the throwable
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*/
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public void debug( final String message, |
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final Throwable throwable ) |
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{ |
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output( LEVEL_DEBUG, LEVEL_DEBUG_STR, message, throwable ); |
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} |
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/**
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* Return true if a debug message will be logged.
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*
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* @return true if message will be logged
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*/
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public boolean isDebugEnabled() |
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{ |
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return m_level <= LEVEL_DEBUG;
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} |
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/**
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* Log a info message.
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*
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* @param message the message
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*/
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public void info( final String message ) |
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{ |
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info( message, null );
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} |
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/**
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* Log a info message with an associated throwable.
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*
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* @param message the message
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* @param throwable the throwable
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*/
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public void info( final String message, |
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final Throwable throwable ) |
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{ |
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output( LEVEL_INFO, LEVEL_INFO_STR, message, throwable ); |
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} |
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/**
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* Return true if an info message will be logged.
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*
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* @return true if message will be logged
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*/
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public boolean isInfoEnabled() |
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{ |
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return m_level <= LEVEL_INFO;
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} |
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/**
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* Log a warn message.
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*
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* @param message the message
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*/
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public void warn( final String message ) |
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{ |
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warn( message, null );
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} |
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/**
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* Log a warn message with an associated throwable.
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*
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* @param message the message
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* @param throwable the throwable
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*/
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public void warn( final String message, |
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final Throwable throwable ) |
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{ |
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output( LEVEL_WARN, LEVEL_WARN_STR, message, throwable ); |
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} |
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/**
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* Return true if a warn message will be logged.
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*
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* @return true if message will be logged
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*/
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public boolean isWarnEnabled() |
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{ |
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return m_level <= LEVEL_WARN;
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} |
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/**
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* Log a error message.
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*
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* @param message the message
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*/
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public void error( final String message ) |
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{ |
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error( message, null );
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} |
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/**
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* Log a error message with an associated throwable.
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*
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* @param message the message
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* @param throwable the throwable
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*/
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public void error( final String message, |
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final Throwable throwable ) |
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{ |
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output( LEVEL_ERROR, LEVEL_ERROR_STR, message, throwable ); |
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} |
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/**
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* Return true if a error message will be logged.
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*
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* @return true if message will be logged
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*/
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public boolean isErrorEnabled() |
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{ |
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return m_level <= LEVEL_ERROR;
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} |
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/**
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* Get the child logger with specified name.
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*
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* @param name the name of child logger
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* @return the child logger
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*/
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public Logger getChildLogger( final String name )
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{ |
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return this; |
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} |
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/**
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* Utility method that logs output if level
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* is enabled.
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*
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* @param level the log level
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* @param type the type string
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* @param message the message
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* @param throwable the throwable, may be null
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*/
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private void output( final int level, |
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final String type, |
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final String message, |
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final Throwable throwable ) |
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{ |
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if( m_level <= level )
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{ |
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doOutput( type, message, throwable ); |
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} |
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} |
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/**
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* Utility method to actually output message to console.
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*
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* @param type the type string
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* @param message the message
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* @param throwable the throwable, may be null
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*/
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void doOutput( final String type,
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final String message, |
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final Throwable throwable ) |
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{ |
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synchronized( System.out )
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{ |
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m_output.println( "[" + type + "] " + message ); |
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if( null != throwable ) |
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{ |
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throwable.printStackTrace( m_output ); |
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} |
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} |
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} |
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/**
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* Utility method so that subclasses can access log level.
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*
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* @return log level of logger
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*/
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final int getLevel()
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{ |
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return m_level;
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} |
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} |
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