/*
* Copyright 2009 Johan Maasing.
*
* 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.
* under the License.
*/
package com.google.code.pj2r.resources;
import com.google.code.pj2r.Marshaller;
import com.google.code.pj2r.MarshallingException;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
/**
* A meta-marshaller that delegates to a list of other marshallers.
* @author Johan Maasing
*/
public class MultiMarshaller implements Marshaller {
private final List<Marshaller> marshallers;
/**
* Create a new multi-marshaller.
* @param marshallers The lsit of marshallers to delegate marshalling to. May not be null or empty.
*/
public MultiMarshaller(final List<Marshaller> marshallers) {
if (marshallers == null) {
throw new IllegalArgumentException("List of marshallers may not be null");
}
if (marshallers.size() < 1) {
throw new IllegalArgumentException("List of marshallers may not be empty");
}
this.marshallers = marshallers;
}
@Override
public void marshal(HttpServletRequest request, Object result) throws MarshallingException {
for (Marshaller marshaller : marshallers) {
marshaller.marshal(request, result);
}
}
}
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