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Improvements to how SystemOutLogger and CommonsLogger log messages with exceptions, and avoid an infinite loop with certain log messages with exceptions - triggered by bug #44326 

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@617487 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Nick Burch 2008-02-01 12:29:38 +00:00
parent ed6038febb
commit a1718ca9ac
5 changed files with 111 additions and 9 deletions
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1
src/documentation/content/xdocs/changes.xml
View File

@ -36,6 +36,7 @@
<!-- Don't forget to update status.xml too! -->
<release version="3.1-beta1" date="2008-??-??">
<action dev="POI-DEVELOPERS" type="add">44326 - Improvements to how SystemOutLogger and CommonsLogger log messages with exceptions, and avoid an infinite loop with certain log messages with exceptions</action>
<action dev="POI-DEVELOPERS" type="add">Support for a completed Record based "pull" stream, via org.apache.poi.hssf.eventusermodel.HSSFRecordStream, to complement the existing "push" Event User Model listener stuff</action>
</release>
<release version="3.0.2-FINAL" date="2008-02-04">

1
src/documentation/content/xdocs/status.xml
View File

@ -33,6 +33,7 @@
<!-- Don't forget to update changes.xml too! -->
<changes>
<release version="3.1-beta1" date="2008-??-??">
<action dev="POI-DEVELOPERS" type="add">44326 - Improvements to how SystemOutLogger and CommonsLogger log messages with exceptions, and avoid an infinite loop with certain log messages with exceptions</action>
<action dev="POI-DEVELOPERS" type="add">Support for a completed Record based "pull" stream, via org.apache.poi.hssf.eventusermodel.HSSFRecordStream, to complement the existing "push" Event User Model listener stuff</action>
</release>
<release version="3.0.2-FINAL" date="2008-02-04">

75
src/java/org/apache/poi/util/CommonsLogger.java
View File

@ -22,8 +22,6 @@ package org.apache.poi.util;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.util.*;
/**
* A logger class that strives to make it as easy as possible for
* developers to write log calls, while simultaneously making those
@ -53,7 +51,6 @@ public class CommonsLogger extends POILogger
* @param level One of DEBUG, INFO, WARN, ERROR, FATAL
* @param obj1 The object to log.
*/
public void log(final int level, final Object obj1)
{
if(level==FATAL)
@ -98,6 +95,78 @@ public class CommonsLogger extends POILogger
log.trace(obj1);
}
}
}
/**
* Log a message
*
* @param level One of DEBUG, INFO, WARN, ERROR, FATAL
* @param obj1 The object to log. This is converted to a string.
* @param exception An exception to be logged
*/
public void log(final int level, final Object obj1,
final Throwable exception)
{
if(level==FATAL)
{
if(log.isFatalEnabled())
{
if(obj1 != null)
log.fatal(obj1, exception);
else
log.fatal(exception);
}
}
else if(level==ERROR)
{
if(log.isErrorEnabled())
{
if(obj1 != null)
log.error(obj1, exception);
else
log.error(exception);
}
}
else if(level==WARN)
{
if(log.isWarnEnabled())
{
if(obj1 != null)
log.warn(obj1, exception);
else
log.warn(exception);
}
}
else if(level==INFO)
{
if(log.isInfoEnabled())
{
if(obj1 != null)
log.info(obj1, exception);
else
log.info(exception);
}
}
else if(level==DEBUG)
{
if(log.isDebugEnabled())
{
if(obj1 != null)
log.debug(obj1, exception);
else
log.debug(exception);
}
}
else
{
if(log.isTraceEnabled())
{
if(obj1 != null)
log.trace(obj1, exception);
else
log.trace(exception);
}
}
}

25
src/java/org/apache/poi/util/POILogger.java
View File

@ -51,7 +51,24 @@ public abstract class POILogger
abstract public void initialize(final String cat);
/**
* Log a message
*
* @param level One of DEBUG, INFO, WARN, ERROR, FATAL
* @param obj1 The object to log. This is converted to a string.
*/
abstract public void log(final int level, final Object obj1);
/**
* Log a message
*
* @param level One of DEBUG, INFO, WARN, ERROR, FATAL
* @param obj1 The object to log. This is converted to a string.
* @param exception An exception to be logged
*/
abstract public void log(final int level, final Object obj1,
final Throwable exception);
/**
* Check if a logger is enabled to log at the specified level
@ -237,17 +254,15 @@ public abstract class POILogger
}
/**
* Log a message
* Log an exception, without a message
*
* @param level One of DEBUG, INFO, WARN, ERROR, FATAL
* @param obj1 The object to log. This is converted to a string.
* @param exception An exception to be logged
*/
public void log(final int level, final Object obj1,
final Throwable exception)
public void log(final int level, final Throwable exception)
{
log(level , obj1, exception);
log(level, null, exception);
}
/**

18
src/java/org/apache/poi/util/SystemOutLogger.java
View File

@ -49,8 +49,24 @@ public class SystemOutLogger extends POILogger
public void log(final int level, final Object obj1)
{
if (check(level))
log(level, obj1, null);
}
/**
* Log a message
*
* @param level One of DEBUG, INFO, WARN, ERROR, FATAL
* @param obj1 The object to log. This is converted to a string.
* @param exception An exception to be logged
*/
public void log(final int level, final Object obj1,
final Throwable exception) {
if (check(level)) {
System.out.println("["+cat+"] "+obj1);
if(exception != null) {
exception.printStackTrace(System.out);
}
}
}
/**