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/**
 * commons - Various Java Utils
 * Copyright (C) 2009  Adrian Cristian Ionescu - https://github.com/acionescu
 *
 * 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 net.segoia.util.parser.workers;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;

public class MapperWorker extends ParseWorker {

    public MapperWorker(Map params) {
	super(params);
	// TODO Auto-generated constructor stub
    }

    @Override
    public Object process(Collection input) {
	Map params = getParams();

	List result = new ArrayList();

	for (Object o : input) {
	    Object value = params.get(o);
	    if (value != null) {
		result.add(value);
	    }
	    else {
		result.add(o);
	    }
	}
	
	return result;
    }

}