Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.util.Log;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.concurrent.TimeUnit;

public class Main {
    private static int counter = 0;

    /**
     * Gets a long value i.e the time when the call was made and then returns a
     * appropriate string
     *
     * @param callDate a long value which represents the time when the call was made
     * @return a formatted string to be displayed.
     */
    public static String getTheTimePassedSinceCall(long callDate) {

        long difference = System.currentTimeMillis() - callDate;

        long diffInSeconds = getDateDiff(difference, TimeUnit.SECONDS);
        long diffInMin = getDateDiff(difference, TimeUnit.MINUTES);
        long diffInHours = getDateDiff(difference, TimeUnit.HOURS);

        return getDifferenceString(diffInSeconds, diffInMin, diffInHours, callDate);
    }

    /**
     * Get a diff between two dates
     *
     * @param timeUnit the unit in which you want the diff
     * @return the diff value, in the provided unit
     */
    private static long getDateDiff(long diffInMillis, TimeUnit timeUnit) {
        return timeUnit.convert(diffInMillis, TimeUnit.MILLISECONDS);
    }

    /**
     * gets a diff types of representation of the current time and
     * converts it into a proper form.
     *
     * @param diffInSeconds difference between current date and call date in seconds.
     * @param diffInMin     difference between current date and call date in minutes.
     * @param diffInHours   difference between current date and call date in hours.
     * @param callDate      the exact date time when call was made.
     * @return a string representation of the time.
     */
    private static String getDifferenceString(long diffInSeconds, long diffInMin, long diffInHours, long callDate) {

        Log.v("Utility class", "counter: " + ++counter + "sec: " + diffInSeconds + "min: " + diffInMin + "hour: "
                + diffInHours + "call_date: " + callDate);

        //Getting the time in minuets and seconds since the time passed.
        if (diffInSeconds > 60)
            diffInSeconds = diffInSeconds % 60;
        if (diffInMin > 60)
            diffInMin = diffInMin % 60;

        //Formatting the string to be returned.
        if (diffInMin <= 5 && diffInHours == 0)
            return diffInMin + "m " + diffInSeconds + "s ago";
        else if (diffInMin > 5 && diffInHours == 0)
            return diffInMin + "m ago";
        else if (diffInHours <= 5)
            return diffInHours + "h " + diffInMin + "m ago";
        else if (diffInHours > 5 && diffInHours <= 24)
            return diffInHours + " hours ago";
        else if (diffInHours > 24 && diffInHours <= 168)
            return diffInHours / 24 + " days ago";
        else {
            Date calledDate = new Date(callDate);

            return new SimpleDateFormat("MMM d, EEE", Locale.ENGLISH).format(calledDate);
        }
    }
}