org.everit.jira.core.impl.DateTimeServer.java Source code

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Here is the source code for org.everit.jira.core.impl.DateTimeServer.java

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/*
 * Copyright (C) 2011 Everit Kft. (http://www.everit.org)
 *
 * 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 org.everit.jira.core.impl;

import java.util.Date;

import org.everit.jira.core.util.TimetrackerUtil;
import org.everit.jira.timetracker.plugin.util.DateTimeConverterUtil;
import org.joda.time.DateTime;
import org.joda.time.DateTimeZone;

/**
 * Server DateTime in different TimeZones and times.
 */
public final class DateTimeServer {
    // DONE calculate variables based on the given one time.
    // DONE user DTCU methods
    // DONE cal sytem based user
    // DONE cal user based system (for worklogs etc.)
    // DONE add simple userTZ cons
    // DONE add simple userTZ + startTime cons
    // DONE add SYSTEM/USER settings

    /**
     * Simple instance generator. Create the systemTimezone based on the given Date Time.
     *
     * @param systemTimeZone
     *          The Date Time in user Time Zone
     *
     * @return A new DateTimeServer object.
     */
    public static DateTimeServer getInstanceBasedOnSystemTimeZone(final DateTime systemTimeZone) {
        DateTimeServer dateTimeServer = new DateTimeServer();
        dateTimeServer.setSystemTimeZone(systemTimeZone);
        return dateTimeServer;
    }

    /**
     * Simple instance generator. Create the userTimeZone based on the given milliseconds.
     *
     * @param systemTimeZoneInMillis
     *          The user DateTime in millis.
     *
     * @return A new DateTimeServer object.
     */
    public static DateTimeServer getInstanceBasedOnSystemTimeZone(final long systemTimeZoneInMillis) {
        DateTime systemTimeZoneFromMilis = new DateTime(systemTimeZoneInMillis);
        systemTimeZoneFromMilis = systemTimeZoneFromMilis.withZoneRetainFields(TimetrackerUtil.getSystemTimeZone());
        DateTimeServer dateTimeServer = new DateTimeServer();
        dateTimeServer.setSystemTimeZone(systemTimeZoneFromMilis);
        return dateTimeServer;
    }

    /**
     * Simple instance generator. Create the userTimeZone based on the given Date Time.
     *
     * @param userTimeZone
     *          The Date Time in user Time Zone
     *
     * @return A new DateTimeServer object.
     */
    public static DateTimeServer getInstanceBasedOnUserTimeZone(final DateTime userTimeZone) {
        DateTimeServer dateTimeServer = new DateTimeServer();
        dateTimeServer.setUserTimeZone(userTimeZone);
        return dateTimeServer;
    }

    /**
     * Simple instance generator. Create the userTimeZone based on the given milliseconds.
     *
     * @param userTimeZoneInMillis
     *          The user DateTime in millis.
     *
     * @return A new DateTimeServer object.
     */
    public static DateTimeServer getInstanceBasedOnUserTimeZone(final long userTimeZoneInMillis) {
        DateTime userTimeZoneFromMillis = new DateTime(userTimeZoneInMillis, DateTimeZone.UTC);
        userTimeZoneFromMillis = userTimeZoneFromMillis
                .withZoneRetainFields(TimetrackerUtil.getLoggedUserTimeZone());
        DateTimeServer dateTimeServer = new DateTimeServer();
        dateTimeServer.setUserTimeZone(userTimeZoneFromMillis);
        return dateTimeServer;
    }

    /**
     * Get a new instace of the DateTimeServer baed on the actual server time.
     *
     * @return A new DateTimeServer object.
     */
    public static DateTimeServer getInstanceSystemNow() {
        DateTimeServer dateTimeServer = new DateTimeServer();
        dateTimeServer.setSystemTimeZone(new DateTime(TimetrackerUtil.getSystemTimeZone()));
        return dateTimeServer;
    }

    private DateTime systemTimeZone;

    private DateTime systemTimeZoneDayStart;

    private DateTime userTimeZone;

    private DateTime userTimeZoneDayStart;

    private DateTimeServer() {

    }

    /**
     * Add startTime (date time part) to DateTimeServer. Make the calculations based on user TimeZone
     * dateTime.
     *
     * @param startTime
     *          The new time value.
     * @return The modified DateTimeServer.
     */
    public DateTimeServer addStartTime(final String startTime) {
        setUserTimeZone(DateTimeConverterUtil.stringToDateAndTime(userTimeZone, startTime));
        return this;
    }

    private void calculateBasedOnSystemTimeZone() {
        userTimeZone = DateTimeConverterUtil.convertDateZoneToUserTimeZone(systemTimeZone);
        systemTimeZoneDayStart = DateTimeConverterUtil.setDateToDayStart(systemTimeZone);
        userTimeZoneDayStart = DateTimeConverterUtil.convertDateZoneToSystemTimeZone(systemTimeZoneDayStart);
    }

    private void calculateBasedOnUserTimeZone() {
        // UTZ +14
        // STZ +1
        // userTZ = 15:00
        // systemTZ = 02:00
        // usersDS = 00:00
        // systemDS = 11:00 (day before)
        systemTimeZone = DateTimeConverterUtil.convertDateZoneToSystemTimeZone(userTimeZone);
        userTimeZoneDayStart = DateTimeConverterUtil.setDateToDayStart(userTimeZone);
        systemTimeZoneDayStart = DateTimeConverterUtil.convertDateZoneToSystemTimeZone(userTimeZoneDayStart);
    }

    public DateTime getSystemTimeZone() {
        return systemTimeZone;
    }

    public Date getSystemTimeZoneDate() {
        return DateTimeConverterUtil.convertDateTimeToDate(systemTimeZone);
    }

    public DateTime getSystemTimeZoneDayStart() {
        return systemTimeZoneDayStart;
    }

    public Date getSystemTimeZoneDayStartDate() {
        return DateTimeConverterUtil.convertDateTimeToDate(systemTimeZoneDayStart);
    }

    public DateTime getUserTimeZone() {
        return userTimeZone;
    }

    public Date getUserTimeZoneDate() {
        return DateTimeConverterUtil.convertDateTimeToDate(userTimeZone);
    }

    public DateTime getUserTimeZoneDayStart() {
        return userTimeZoneDayStart;
    }

    public Date getUserTimeZoneDayStartDate() {
        return DateTimeConverterUtil.convertDateTimeToDate(userTimeZoneDayStart);
    }

    private void setSystemTimeZone(final DateTime systemTimeZone) {
        this.systemTimeZone = systemTimeZone;
        calculateBasedOnSystemTimeZone();
    }

    private void setUserTimeZone(final DateTime userTimeZone) {
        this.userTimeZone = userTimeZone;
        calculateBasedOnUserTimeZone();
    }

}