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'databene commons' is an open source Java library by Volker Bergmann.
It provides extensions to the Java core library by utility classes, abstract concepts
and concrete implementations.
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/*
* Copyright (C) 2004-2015 Volker Bergmann ([email protected]).
* All rights reserved.
*
* Licensed 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.databene.commons.converter;
import org.databene.commons.ConversionException;
import org.databene.commons.Converter;
/**
* Aggregates other (sub) converters and implements conversion by subsequent invocation of the sub converters,
* each converting the result of the preceding converter.
* Created: 13.05.2005 17:43:04
* @param the object type to convert from
* @param the object type to convert to
* @since 0.1
* @author Volker Bergmann
*/
@SuppressWarnings({ "unchecked", "rawtypes" })
public class ConverterChain extends MultiConverterWrapper implements Converter {
public ConverterChain(Converter... components) {
super(components);
}
// Converter interface implementation ------------------------------------------------------------------------------
@Override
public Class getSourceType() {
return (components.length > 0 ? components[0].getSourceType() : Object.class);
}
@Override
public Class getTargetType() {
return (components.length > 0 ? components[components.length - 1].getTargetType() : Object.class);
}
@Override
public T convert(Object source) throws ConversionException {
Object tmp = source;
for (Converter converter : components) {
tmp = converter.convert(tmp);
}
return (T) tmp;
}
}