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/*******************************************************************************
* Copyright (c) 2006 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.wst.wsdl.validation.internal.ui.text;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import org.eclipse.wst.wsdl.validation.internal.logging.ILogger;
/**
* A custom WSDL validator logger that passes logging events to log4j.
*/
public class Log4jLogger implements ILogger
{
// This class is implemented using reflection to avoid a comilation dependency
// on log4j.
protected Object logger = null;
protected Method error1 = null;
protected Method warn1 = null;
protected Method info1 = null;
protected Method debug1 = null;
protected Method error2 = null;
protected Method warn2 = null;
protected Method info2 = null;
protected Method debug2 = null;
public Log4jLogger()
{
try
{
Class loggerClass = getClass().getClassLoader().loadClass("org.apache.log4j.Logger");
Class categoryClass = getClass().getClassLoader().loadClass("org.apache.log4j.Category");
Method getLogger = loggerClass.getDeclaredMethod("getLogger" , new Class[]{Class.class});
logger = getLogger.invoke(loggerClass, new Object[]{WSDLValidate.class});
error1 = categoryClass.getDeclaredMethod("error" , new Class[]{Object.class});
warn1 = categoryClass.getDeclaredMethod("warn" , new Class[]{Object.class});
info1 = categoryClass.getDeclaredMethod("info" , new Class[]{Object.class});
debug1 = categoryClass.getDeclaredMethod("debug" , new Class[]{Object.class});
error2 = categoryClass.getDeclaredMethod("error" , new Class[]{Object.class, Throwable.class});
warn2 = categoryClass.getDeclaredMethod("warn" , new Class[]{Object.class, Throwable.class});
info2 = categoryClass.getDeclaredMethod("info" , new Class[]{Object.class, Throwable.class});
debug2 = categoryClass.getDeclaredMethod("debug" , new Class[]{Object.class, Throwable.class});
}
catch(ClassNotFoundException e)
{
System.err.println("Unable to create Log4j Logger. Ensure Log4J is on the classpath.");
}
catch(NoSuchMethodException e)
{
}
catch(IllegalAccessException e)
{
}
catch(InvocationTargetException e)
{
}
}
/* (non-Javadoc)
* @see org.eclipse.wst.wsdl.validation.internal.logging.ILogger#log(java.lang.String, int)
*/
public void log(String message, int severity)
{
if(logger != null)
{
try
{
if(severity == ILogger.SEV_ERROR)
{
error1.invoke(logger, new Object[]{message});
}
else if(severity == ILogger.SEV_WARNING)
{
warn1.invoke(logger, new Object[]{message});
}
else if(severity == ILogger.SEV_INFO)
{
info1.invoke(logger, new Object[]{message});
}
else if(severity == ILogger.SEV_VERBOSE)
{
debug1.invoke(logger, new Object[]{message});
}
}
catch(InvocationTargetException e)
{
// Do nothing.
}
catch(IllegalAccessException e)
{
// Do nothing.
}
}
}
/* (non-Javadoc)
* @see org.eclipse.wst.wsdl.validation.internal.logging.ILogger#log(java.lang.String, int, java.lang.Throwable)
*/
public void log(String message, int severity, Throwable throwable)
{
if(logger != null)
{
try
{
if(severity == ILogger.SEV_ERROR)
{
error2.invoke(logger, new Object[]{message, throwable});
}
else if(severity == ILogger.SEV_WARNING)
{
warn2.invoke(logger, new Object[]{message, throwable});
}
else if(severity == ILogger.SEV_INFO)
{
info2.invoke(logger, new Object[]{message, throwable});
}
else if(severity == ILogger.SEV_VERBOSE)
{
debug2.invoke(logger, new Object[]{message, throwable});
}
}
catch(InvocationTargetException e)
{
// Do nothing.
}
catch(IllegalAccessException e)
{
// Do nothing.
}
}
}
}
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