net.duckling.ddl.util.AoneTimeUtils.java Source code

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Here is the source code for net.duckling.ddl.util.AoneTimeUtils.java

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/*
 * Copyright (c) 2008-2016 Computer Network Information Center (CNIC), Chinese Academy of Sciences.
 * 
 * This file is part of Duckling project.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License. 
 *
 */

package net.duckling.ddl.util;

import java.text.ParseException;
import java.util.Calendar;
import java.util.Date;

import org.apache.commons.lang.time.DateFormatUtils;
import org.apache.commons.lang.time.DateUtils;
import org.apache.log4j.Logger;

/**
 * @date Mar 9, 2011
 * @author xiejj@cnic.cn
 */
public final class AoneTimeUtils {
    private AoneTimeUtils() {
    }

    private static final Logger log = Logger.getLogger(AoneTimeUtils.class);
    private static final String DATE_TIME_PATTERN = "yyyy-MM-dd HH:mm:ss";
    private static final String DATE_PATTERN = "yyyy-MM-dd";
    private static final String TIME_PATTERN = "HH:mm:ss";

    public static String formatToDate(Date date) {
        return DateFormatUtils.format(date, DATE_PATTERN);
    }

    public static String formatToDateTime(Date date) {
        return DateFormatUtils.format(date, DATE_TIME_PATTERN);
    }

    public static String formatToTime(Date date) {
        return DateFormatUtils.format(date, TIME_PATTERN);
    }

    public static Date parseDateTime(String textDate) {
        try {
            return DateUtils.parseDate(textDate, new String[] { DATE_TIME_PATTERN });
        } catch (ParseException e) {
            log.error("parse date time error for input " + textDate, e);
        }
        return null;
    }

    public static Date parseDate(String textDate) {
        try {
            return DateUtils.parseDate(textDate, new String[] { DATE_PATTERN });
        } catch (ParseException e) {
            log.error("parse date error for input " + textDate, e);
        }
        return null;
    }

    public static Date parseTime(String textDate) {
        try {
            return DateUtils.parseDate(textDate, new String[] { TIME_PATTERN });
        } catch (ParseException e) {
            log.error("parse time error for input " + textDate, e);
        }
        return null;
    }

    public static boolean isSameDay(Date first, Date second) {
        if ((first == null || second == null) && !first.equals(second)) {
            return false;
        }
        Date firstDay = DateUtils.truncate(first, Calendar.DAY_OF_MONTH);
        Date secondDay = DateUtils.truncate(second, Calendar.DAY_OF_MONTH);
        return firstDay.equals(secondDay);
    }

    public static boolean isSameMonth(Date first, Date second) {
        if ((first == null || second == null) && !first.equals(second)) {
            return false;
        }
        Date firstMonth = DateUtils.truncate(first, Calendar.MONTH);
        Date secondMonth = DateUtils.truncate(second, Calendar.MONTH);
        return firstMonth.equals(secondMonth);
    }

    public static boolean isSameYear(Date first, Date second) {
        if ((first == null || second == null) && first != second) {
            return false;
        }
        Date firstYear = DateUtils.truncate(first, Calendar.YEAR);
        Date secondYear = DateUtils.truncate(second, Calendar.YEAR);
        return firstYear.equals(secondYear);
    }

    private final static long DAY_MILLS = 1000 * 60 * 60 * 24;
    private final static long HOUR_MILLS = 1000 * 60 * 60;

    public static String getLastTime(long delta) {
        if (delta <= 0) {
            return "";
        }
        long temp = delta;
        long days = temp / DAY_MILLS;
        temp = delta - (days) * DAY_MILLS;
        long hours = temp / 1000 / 60 / 60;
        temp = temp - (hours) * HOUR_MILLS;
        long mins = temp / 1000 / 60;
        if (days > 0) {
            return days + "" + hours + "?" + mins + "";
        }
        if (hours > 0) {
            return hours + "?" + mins + "";
        }
        return mins + "";
    }
}