/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.log4j.spi;
import org.apache.log4j.Level;
import org.apache.log4j.Category;
import org.apache.log4j.Logger;
import org.apache.log4j.Appender;
import java.util.Enumeration;
import java.util.Vector;
/**
* No-operation implementation of LoggerRepository which is used when
* LogManager.repositorySelector is erroneously nulled during class reloading.
* @since 1.2.15
*/
public final class NOPLoggerRepository implements LoggerRepository {
/**
* {@inheritDoc}
*/
public void addHierarchyEventListener(final HierarchyEventListener listener) {
}
/**
* {@inheritDoc}
*/
public boolean isDisabled(final int level) {
return true;
}
/**
* {@inheritDoc}
*/
public void setThreshold(final Level level) {
}
/**
* {@inheritDoc}
*/
public void setThreshold(final String val) {
}
/**
* {@inheritDoc}
*/
public void emitNoAppenderWarning(final Category cat) {
}
/**
* {@inheritDoc}
*/
public Level getThreshold() {
return Level.OFF;
}
/**
* {@inheritDoc}
*/
public Logger getLogger(final String name) {
return new NOPLogger(this, name);
}
/**
* {@inheritDoc}
*/
public Logger getLogger(final String name, final LoggerFactory factory) {
return new NOPLogger(this, name);
}
/**
* {@inheritDoc}
*/
public Logger getRootLogger() {
return new NOPLogger(this, "root");
}
/**
* {@inheritDoc}
*/
public Logger exists(final String name) {
return null;
}
/**
* {@inheritDoc}
*/
public void shutdown() {
}
/**
* {@inheritDoc}
*/
public Enumeration getCurrentLoggers() {
return new Vector().elements();
}
/**
* {@inheritDoc}
*/
public Enumeration getCurrentCategories() {
return getCurrentLoggers();
}
/**
* {@inheritDoc}
*/
public void fireAddAppenderEvent(Category logger, Appender appender) {
}
/**
* {@inheritDoc}
*/
public void resetConfiguration() {
}
}
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