org.apache.xmlbeans.impl.common.NullLogger Maven / Gradle / Ivy
/* Copyright 2017, 2018 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.xmlbeans.impl.common;
/**
* A logger class that strives to make it as easy as possible for
* developers to write log calls, while simultaneously making those
* calls as cheap as possible by performing lazy evaluation of the log
* message.
*/
public class NullLogger extends XBLogger {
@Override
public void initialize(final String cat) {
// do nothing
}
/**
* Log a message
*
* @param level One of DEBUG, INFO, WARN, ERROR, FATAL
* @param obj1 The object to log.
*/
@Override
protected void _log(final int level, final Object obj1) {
// do nothing
}
/**
* 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
*/
@Override
protected void _log(int level, Object obj1, final Throwable exception) {
// do nothing
}
/**
* Log a message. Lazily appends Object parameters together.
* If the last parameter is a {@link Throwable} it is logged specially.
*
* @param level One of DEBUG, INFO, WARN, ERROR, FATAL
* @param objs the objects to place in the message
*/
@Override
public void log(int level, Object... objs) {
// do nothing
}
/**
* Check if a logger is enabled to log at the specified level
*
* @param level One of DEBUG, INFO, WARN, ERROR, FATAL
*/
@Override
public boolean check(final int level) {
return false;
}
}