226 lines
5.5 KiB
Java
226 lines
5.5 KiB
Java
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/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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package org.apache.poi.util;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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/**
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* A logger class that strives to make it as easy as possible for
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* developers to write log calls, while simultaneously making those
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* calls as cheap as possible by performing lazy evaluation of the log
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* message.<p>
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*/
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public class CommonsLogger extends POILogger
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{
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private static final LogFactory _creator = LogFactory.getFactory();
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private Log log = null;
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@Override
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public void initialize(final String cat)
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{
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this.log = _creator.getInstance(cat);
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}
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/**
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* Log a message
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*
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* @param level One of DEBUG, INFO, WARN, ERROR, FATAL
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* @param obj1 The object to log.
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*/
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@Override
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protected void _log(final int level, final Object obj1)
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{
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// FIXME: What happens if level is in between two levels (an even number)?
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// Should this be `if (level >= FATAL) ...`?
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if(level==FATAL)
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{
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if(log.isFatalEnabled())
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{
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log.fatal(obj1);
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}
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}
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else if(level==ERROR)
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{
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if(log.isErrorEnabled())
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{
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log.error(obj1);
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}
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}
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else if(level==WARN)
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{
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if(log.isWarnEnabled())
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{
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log.warn(obj1);
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}
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}
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else if(level==INFO)
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{
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if(log.isInfoEnabled())
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{
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log.info(obj1);
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}
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}
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else if(level==DEBUG)
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{
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if(log.isDebugEnabled())
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{
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log.debug(obj1);
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}
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}
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else
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{
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if(log.isTraceEnabled())
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{
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log.trace(obj1);
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}
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}
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}
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/**
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* Log a message
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*
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* @param level One of DEBUG, INFO, WARN, ERROR, FATAL
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* @param obj1 The object to log. This is converted to a string.
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* @param exception An exception to be logged
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*/
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@Override
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protected void _log(final int level, final Object obj1,
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final Throwable exception)
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{
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// FIXME: What happens if level is in between two levels (an even number)?
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// Should this be `if (level >= FATAL) ...`?
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if(level==FATAL)
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{
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if(log.isFatalEnabled())
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{
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if(obj1 != null)
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log.fatal(obj1, exception);
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else
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log.fatal(exception);
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}
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}
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else if(level==ERROR)
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{
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if(log.isErrorEnabled())
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{
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if(obj1 != null)
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log.error(obj1, exception);
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else
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log.error(exception);
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}
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}
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else if(level==WARN)
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{
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if(log.isWarnEnabled())
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{
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if(obj1 != null)
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log.warn(obj1, exception);
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else
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log.warn(exception);
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}
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}
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else if(level==INFO)
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{
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if(log.isInfoEnabled())
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{
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if(obj1 != null)
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log.info(obj1, exception);
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else
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log.info(exception);
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}
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}
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else if(level==DEBUG)
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{
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if(log.isDebugEnabled())
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{
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if(obj1 != null)
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log.debug(obj1, exception);
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else
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log.debug(exception);
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}
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}
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else
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{
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if(log.isTraceEnabled())
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{
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if(obj1 != null)
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log.trace(obj1, exception);
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else
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log.trace(exception);
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}
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}
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}
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/**
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* Check if a logger is enabled to log at the specified level
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*
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* @param level One of DEBUG, INFO, WARN, ERROR, FATAL
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*/
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@Override
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public boolean check(final int level)
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{
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// FIXME: What happens if level is in between two levels (an even number)?
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// Should this be `if (level >= FATAL) ...`?
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if(level==FATAL)
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{
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if(log.isFatalEnabled())
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{
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return true;
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}
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}
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else if(level==ERROR)
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{
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if(log.isErrorEnabled())
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{
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return true;
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}
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}
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else if(level==WARN)
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{
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if(log.isWarnEnabled())
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{
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return true;
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}
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}
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else if(level==INFO)
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{
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if(log.isInfoEnabled())
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{
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return true;
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}
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}
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else if(level==DEBUG)
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{
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if(log.isDebugEnabled())
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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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} // end package scope class POILogger
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