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//
// Copyright (C) 2006-2016 Talend Inc. - www.talend.com
//
// This source code is available under agreement available at
// %InstallDIR%\features\org.talend.rcp.branding.%PRODUCTNAME%\%PRODUCTNAME%license.txt
//
// You should have received a copy of the agreement
// along with this program; if not, write to Talend SA
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package org.talend.survivorship.services;

import java.util.ArrayList;
import java.util.List;

import org.talend.survivorship.model.Attribute;
import org.talend.survivorship.model.DataSet;
import org.talend.survivorship.model.Record;

/**
 * Completeness Service to determine the most complete record.
 */
public class CompletenessService extends AbstractService {

    List<Integer> mostCompleteRecNumList;

    /**
     * Completeness constructor.
     * 
     * @param dataset
     */
    public CompletenessService(DataSet dataset) {
        super(dataset);
        mostCompleteRecNumList = new ArrayList<Integer>();
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.talend.survivorship.services.AbstractService#init()
     */
    @Override
    public void init() {
        mostCompleteRecNumList.clear();
    }

    /**
     * DOC sizhaoliu Comment method "getMostCompleteRecords".
     * 
     * @return
     */
    public List<Integer> getMostCompleteRecNumList() {
        int max = 0;
        for (Record r : dataset.getRecordList()) {
            int count = 0;
            for (Attribute a : r.getAttributes()) {
                Object obj = a.getValue();
                if (obj != null && !"".equals(obj)) { //$NON-NLS-1$
                    count++;
                }
            }
            if (count > max) {
                mostCompleteRecNumList.clear();
                mostCompleteRecNumList.add(r.getId());
                max = count;
            } else if (count == max) {
                mostCompleteRecNumList.add(r.getId());
            } else {
                // Do nothing
            }
        }
        return mostCompleteRecNumList;
    }

}