org.apache.camel.component.bean.DefaultParameterMappingStrategy Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.camel.component.bean;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.camel.CamelContext;
import org.apache.camel.Exchange;
import org.apache.camel.Expression;
import org.apache.camel.Message;
import org.apache.camel.TypeConverter;
import org.apache.camel.spi.Registry;
import org.apache.camel.support.builder.ExpressionBuilder;
/**
* Represents the strategy used to figure out how to map a message exchange to a POJO method invocation
*/
public class DefaultParameterMappingStrategy implements ParameterMappingStrategy {
private final Map, Expression> parameterTypeToExpressionMap = new ConcurrentHashMap<>();
public DefaultParameterMappingStrategy() {
loadDefaultRegistry();
}
public Expression getDefaultParameterTypeExpression(Class parameterType) {
return parameterTypeToExpressionMap.get(parameterType);
}
/**
* Adds a default parameter type mapping to an expression
*/
public void addParameterMapping(Class parameterType, Expression expression) {
parameterTypeToExpressionMap.put(parameterType, expression);
}
public void loadDefaultRegistry() {
addParameterMapping(Exchange.class, ExpressionBuilder.exchangeExpression());
addParameterMapping(Message.class, ExpressionBuilder.inMessageExpression());
addParameterMapping(Exception.class, ExpressionBuilder.exchangeExceptionExpression());
addParameterMapping(TypeConverter.class, ExpressionBuilder.typeConverterExpression());
addParameterMapping(Registry.class, ExpressionBuilder.registryExpression());
addParameterMapping(CamelContext.class, ExpressionBuilder.camelContextExpression());
}
}