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.component.bean; 018 019 import java.util.Map; 020 import java.util.concurrent.ConcurrentHashMap; 021 022 import org.apache.camel.Exchange; 023 import org.apache.camel.Expression; 024 import org.apache.camel.Message; 025 import org.apache.camel.TypeConverter; 026 import org.apache.camel.builder.ExpressionBuilder; 027 028 /** 029 * Represents the strategy used to figure out how to map a message exchange to a POJO method invocation 030 * 031 * @version $Revision: 766610 $ 032 */ 033 public class DefaultParameterMappingStrategy implements ParameterMappingStrategy { 034 private final Map<Class, Expression> parameterTypeToExpressionMap = new ConcurrentHashMap<Class, Expression>(); 035 036 public DefaultParameterMappingStrategy() { 037 loadDefaultRegistry(); 038 } 039 040 public Expression getDefaultParameterTypeExpression(Class parameterType) { 041 return parameterTypeToExpressionMap.get(parameterType); 042 } 043 044 /** 045 * Adds a default parameter type mapping to an expression 046 */ 047 public void addParameterMapping(Class parameterType, Expression expression) { 048 parameterTypeToExpressionMap.put(parameterType, expression); 049 } 050 051 public void loadDefaultRegistry() { 052 addParameterMapping(Exchange.class, ExpressionBuilder.exchangeExpression()); 053 addParameterMapping(Message.class, ExpressionBuilder.inMessageExpression()); 054 addParameterMapping(Exception.class, ExpressionBuilder.exchangeExceptionExpression()); 055 addParameterMapping(TypeConverter.class, ExpressionBuilder.typeConverterExpression()); 056 } 057 058 }