org.apache.mina.util.ExceptionMonitor Maven / Gradle / Ivy
/**
* Copyright 2007-2015, Kaazing Corporation. 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.apache.mina.util;
/**
* Monitors uncaught exceptions. {@link #exceptionCaught(Throwable)} is
* invoked when there are any uncaught exceptions.
*
* You can monitor any uncaught exceptions by setting {@link ExceptionMonitor}
* by calling {@link #setInstance(ExceptionMonitor)}. The default
* monitor logs all caught exceptions in WARN level using
* SLF4J.
*
* @author Apache MINA Project
*
* @see DefaultExceptionMonitor
*/
public abstract class ExceptionMonitor {
private static ExceptionMonitor instance = new DefaultExceptionMonitor();
/**
* Returns the current exception monitor.
*/
public static ExceptionMonitor getInstance() {
return instance;
}
/**
* Sets the uncaught exception monitor. If null
is specified,
* the default monitor will be set.
*
* @param monitor A new instance of {@link DefaultExceptionMonitor} is set
* if null is specified.
*/
public static void setInstance(ExceptionMonitor monitor) {
if (monitor == null) {
monitor = new DefaultExceptionMonitor();
}
instance = monitor;
}
/**
* Invoked when there are any uncaught exceptions.
*/
public abstract void exceptionCaught(Throwable cause);
}