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.processor.exceptionpolicy;
018
019import java.util.Map;
020
021import org.apache.camel.Exchange;
022import org.apache.camel.model.OnExceptionDefinition;
023
024/**
025 * A strategy to determine which {@link org.apache.camel.model.OnExceptionDefinition} should handle the thrown
026 * exception.
027 *
028 * @see org.apache.camel.processor.exceptionpolicy.DefaultExceptionPolicyStrategy DefaultExceptionPolicy
029 */
030public interface ExceptionPolicyStrategy {
031
032    /**
033     * Resolves the {@link org.apache.camel.model.OnExceptionDefinition} that should handle the thrown exception.
034     *
035     * @param exceptionPolicies the configured exception policies to resolve from
036     * @param exchange           the exchange
037     * @param exception          the exception that was thrown
038     * @return the resolved exception type to handle this exception, <tt>null</tt> if none found.
039     */
040    OnExceptionDefinition getExceptionPolicy(Map<ExceptionPolicyKey, OnExceptionDefinition> exceptionPolicies,
041                                             Exchange exchange, Throwable exception);
042
043}