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'databene commons' is an open source Java library by Volker Bergmann.
It provides extensions to the Java core library by utility classes, abstract concepts
and concrete implementations.
/*
* Copyright (C) 2004-2014 Volker Bergmann ([email protected]).
* All rights reserved.
*
* 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.databene.commons;
import java.util.HashSet;
import java.util.Set;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Logs escalations to a logger.
* @since 0.2.04
* @author Volker Bergmann
*/
public class LoggerEscalator implements Escalator {
private Set escalations;
public LoggerEscalator() {
this.escalations = new HashSet();
}
@Override
public void escalate(String message, Object originator, Object cause) {
// determine logger by the originator
Class category = null;
if (originator != null)
if (originator instanceof Class)
category = (Class) originator;
else
category = originator.getClass();
else
originator = this.getClass();
Logger logger = LoggerFactory.getLogger(category);
// create escalation
Escalation escalation = new Escalation(message, originator, cause);
// if the escalation is new, send it
if (!escalations.contains(escalation)) {
escalations.add(escalation);
if (cause instanceof Throwable)
logger.warn(escalation.toString(), (Throwable) cause);
else
logger.warn(escalation.toString());
}
}
}