com.googlecode.paradox.data.field.TimeField Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of paradoxdriver Show documentation

A Paradox Java Driver (using JDBC 4)

There is a newer version: 1.6.3

/*
 * TimeField.java 07/06/2016 Copyright (C) 2016 Leonardo Alves da Costa 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, either version 3 of the License, or (at your option) any later version. 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 com.googlecode.paradox.data.field;

import com.googlecode.paradox.data.FieldParser;
import com.googlecode.paradox.data.table.value.FieldValue;
import com.googlecode.paradox.metadata.ParadoxField;
import com.googlecode.paradox.metadata.ParadoxTable;

import java.nio.ByteBuffer;
import java.sql.Time;
import java.sql.Types;
import java.util.Calendar;
import java.util.GregorianCalendar;

/**
 * Parses time fields.
 *
 * @author Leonardo Alves da Costa
 * @version 1.0
 * @since 1.3
 */
public final class TimeField implements FieldParser {

    /**
     * {@inheritDoc}.
     */
    @Override
    public boolean match(final int type) {
        return type == 0x14;
    }

    /**
     * {@inheritDoc}.
     */
    @Override
    public FieldValue parse(final ParadoxTable table, final ByteBuffer buffer, final ParadoxField field) {
        final int a1 = buffer.get() & 0xFF;
        final int a2 = buffer.get() & 0xFF;
        final int a3 = buffer.get() & 0xFF;
        final int a4 = buffer.get() & 0xFF;
        final long timeInMillis = ((a1 << 24) | (a2 << 16) | (a3 << 8) | a4) & 0x0FFF_FFFFL;

        if (timeInMillis != 0) {
            final Calendar calendar = new GregorianCalendar(1, 0, 0);
            calendar.add(Calendar.MILLISECOND, (int) timeInMillis);
            final Time time = new Time(calendar.getTimeInMillis());
            return new FieldValue(time, Types.TIME);
        }
        return new FieldValue(Types.TIME);
    }
}