001/**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.camel.spi;
018
019import org.apache.camel.Exchange;
020
021/**
022 * A Strategy pattern for handling exceptions; particularly in asynchronous processes such as consumers.
023 * <p/>
024 * Its important to <b>not</b> throw any exceptions when handling exceptions as they handler
025 * is often invoked in a try .. catch logic already
026 *
027 * @version 
028 */
029public interface ExceptionHandler {
030    
031    /**
032     * Handles the given exception
033     *
034     * @param exception the exception
035     */
036    void handleException(Throwable exception);
037
038    /**
039     * Handles the given exception
040     *
041     * @param message additional message
042     * @param exception the exception
043     */
044    void handleException(String message, Throwable exception);
045
046    /**
047     * Handles the given exception
048     *
049     * @param message additional message
050     * @param exchange exchange which cause the exception
051     * @param exception the exception
052     */
053    void handleException(String message, Exchange exchange, Throwable exception);
054}