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/* --------------------------------------------------------------------
 *  Inugami
 * --------------------------------------------------------------------
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, version 3.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see .
 */
package io.inugami.commons.engine.extractor.srategies;

import io.inugami.commons.engine.extractor.ExtractCommand;
import io.inugami.commons.engine.extractor.ExtractCommandStrategy;

import java.util.Map;

/**
 * CollectiontemExtractCommandStrategy
 *
 * @author patrick_guillerm
 * @since 22 mai 2018
 */
public class MapExtractCommandStrategy implements ExtractCommandStrategy {

    // =========================================================================
    // METHODS
    // =========================================================================
    @Override
    public boolean accept(Object value, ExtractCommand cmd) {
        return value instanceof Map;
    }

    @Override
    public Object process(Object value, ExtractCommand cmd) {
        Object          result = null;
        final Map map    = (Map) value;

        final String fieldName = cmd.getFieldName();
        if (fieldName != null) {
            for (Map.Entry entry : map.entrySet()) {
                if (fieldName.equals(String.valueOf(entry.getKey()))) {
                    result = entry.getValue();
                    break;
                }
            }
        }

        return result;
    }
}