Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import java.util.Calendar;
import java.util.Date;

public class Main {
    /**
     * @param period : today, this_week, this_month, this_year, none
     * @return a date filter string for making query. e.g. date >= 2013-1-1 for this_year
     * return null if period is none.
     */
    @SuppressWarnings("deprecation")
    public static String getDateFilterString(String period) {
        if (period == null)
            return null;
        Calendar calendar = Calendar.getInstance();
        int year = calendar.get(Calendar.YEAR);
        int month = calendar.get(Calendar.MONTH) + 1; // 1 - 12 
        int date = calendar.get(Calendar.DATE); // 1 - 31

        String dateFilterString = null;

        if (period.equalsIgnoreCase("today")) {
            dateFilterString = "date >= " + year + "-" + month + "-" + date;
        } else if (period.contains("week")) {
            int offset = calendar.get(Calendar.DAY_OF_WEEK) - calendar.getFirstDayOfWeek();
            long timeInMillis = calendar.getTimeInMillis() - offset * 24 * 60 * 60 * 1000;
            Date firstDay = new Date(timeInMillis);
            dateFilterString = "date >= " + (firstDay.getYear() + 1900) + "-" + firstDay.getMonth() + "-"
                    + firstDay.getDate();
        } else if (period.contains("month")) {
            dateFilterString = "date >= " + year + "-" + month + "-1";
        } else if (period.contains("year")) {
            dateFilterString = "date >= " + year + "-1-1";
        }

        return dateFilterString;
    }

    public static int getMonth(String str) {
        if (str.equals("jan"))
            return Calendar.JANUARY;
        if (str.equals("feb"))
            return Calendar.FEBRUARY;
        if (str.equals("mar"))
            return Calendar.MARCH;
        if (str.equals("apr"))
            return Calendar.APRIL;
        if (str.equals("may"))
            return Calendar.MAY;
        if (str.equals("jun"))
            return Calendar.JUNE;
        if (str.equals("jul"))
            return Calendar.JULY;
        if (str.equals("aug"))
            return Calendar.AUGUST;
        if (str.equals("sep"))
            return Calendar.SEPTEMBER;
        if (str.equals("oct"))
            return Calendar.OCTOBER;
        if (str.equals("nov"))
            return Calendar.NOVEMBER;
        if (str.equals("dec"))
            return Calendar.DECEMBER;

        return -1;
    }
}