com.clican.pluto.dataprocess.dpl.function.impl.DayOfMonth.java Source code

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Here is the source code for com.clican.pluto.dataprocess.dpl.function.impl.DayOfMonth.java

Source

/**
 * The Clican-Pluto software suit is Copyright 2009, Clican Company and individual contributors, and is licensed under the GNU LGPL.
 *
 * @author clican
 *
 */
package com.clican.pluto.dataprocess.dpl.function.impl;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Map;

import org.apache.commons.lang.time.DateUtils;

import com.clican.pluto.dataprocess.dpl.parser.bean.PrefixAndSuffix;
import com.clican.pluto.dataprocess.exception.CalculationException;
import com.clican.pluto.dataprocess.exception.DplParseException;
import com.clican.pluto.dataprocess.exception.PrefixAndSuffixException;

/**
 * 
 * ,?
 * 
 * dayOfMonth(Date date)
 *
 * @author clican
 *
 */
public class DayOfMonth extends BaseSingleRowFunction {

    private PrefixAndSuffix date;

    public Object calculate(Map<String, Object> row) throws CalculationException, PrefixAndSuffixException {
        Date d = date.getValue(row);
        d = DateUtils.truncate(d, Calendar.MONTH);
        d = DateUtils.addMonths(d, 1);
        d = DateUtils.addDays(d, -1);
        SimpleDateFormat sdf = new SimpleDateFormat("dd");
        return Integer.parseInt(sdf.format(d));
    }

    public boolean isSupportWhere() throws DplParseException {
        return true;
    }

    public void setParams(List<Object> params) throws DplParseException {
        super.setParams(params);
        this.date = pasList.get(0);
    }

}

// $Id: DayOfMonth.java 13260 2010-05-26 10:04:06Z wei.zhang $