Java Regex Time Validate parseTimestamp(final String value)

Description

Parses timestamp value from string.

License

Open Source License

Parameter

Parameter	Description
value	string value

Return

parsed timestamp value

Declaration

public static Date parseTimestamp(final String value) 

Method Source Code

//package com.java2s;
/**//w  w w  .  j  a va 2 s  .co  m
 * Copyright 2012 Miroslav ?ulc
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class Main {
    /**
     * Pattern for parsing timestamp value from string.
     */
    private static final Pattern PATTERN_TIMESTAMP = Pattern
            .compile("^(\\d{4})-(\\d{2})-(\\d{2})T(\\d{2}):(\\d{2}):(\\d{2})$");

    /**
     * Parses timestamp value from string.
     *
     * @param value string value
     *
     * @return parsed timestamp value
     */
    public static Date parseTimestamp(final String value) {
        final Matcher matcher = PATTERN_TIMESTAMP.matcher(value);

        if (!matcher.matches()) {
            throw new RuntimeException("Invalid timestamp value: " + value);
        }

        final Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("UTC"));
        calendar.clear();
        calendar.set(Integer.parseInt(matcher.group(1)), Integer.parseInt(matcher.group(2)) - 1,
                Integer.parseInt(matcher.group(3)), Integer.parseInt(matcher.group(4)),
                Integer.parseInt(matcher.group(5)), Integer.parseInt(matcher.group(6)));

        return calendar.getTime();
    }
}

Related

1. parseTimeDifference(String input)
2. parseTimeOffset(String s)
3. parseTimePeriod(String period)
4. parseTimePeriod(String s)
5. parseTimeSpan(String timeSpan)
6. parseTimestamp(String s)
7. parseTimeString(String str)
8. parseTimeString(String str, TimeUnit unit)
9. parseTimeString(String time)