001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *
010 *    http://www.apache.org/licenses/LICENSE-2.0
011 *
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License.
018 *
019 */
020package org.apache.mina.util;
021
022import org.apache.mina.core.service.IoService;
023import org.slf4j.Logger;
024import org.slf4j.LoggerFactory;
025
026/**
027 * A default {@link ExceptionMonitor} implementation that logs uncaught
028 * exceptions using {@link Logger}.
029 * <p>
030 * All {@link IoService}s have this implementation as a default exception
031 * monitor.
032 *
033 * @author <a href="http://mina.apache.org">Apache MINA Project</a>
034 */
035public class DefaultExceptionMonitor extends ExceptionMonitor {
036    private final static Logger LOGGER = LoggerFactory.getLogger(DefaultExceptionMonitor.class);
037
038    /**
039     * {@inheritDoc}
040     */
041    @Override
042    public void exceptionCaught(Throwable cause) {
043        if (cause instanceof Error) {
044            throw (Error) cause;
045        }
046
047        LOGGER.warn("Unexpected exception.", cause);
048    }
049}