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     */
017    package org.apache.camel.processor.exceptionpolicy;
018    
019    import java.util.Map;
020    
021    import org.apache.camel.Exchange;
022    import 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     */
030    public 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    }