com.atakmap.android.math

Class MathUtils

java.lang.Object

com.atakmap.android.math.MathUtils

public class MathUtils
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
MathUtils()

Method Summary

Modifier and Type	Method and Description
static java.lang.String	GetDownloadSpeedString(double averageSpeed) Format for UI
static java.lang.String	GetLengthString(long lengthInBytes) Format file size for UI
static java.lang.String	GetTimeRemainingOrDateString(long now, long elapsed, boolean bDate) Similar to GetTimeRemainingString, but not only useful for ongoing tasks, as it will display a date if the specified time range is more than 1 week
static java.lang.String	GetTimeRemainingString(long timeRemainingMillis) Get the amount of millis specified formatted for UI display of time remaining for an ongoing task, or for an elapsed amount of time
static double	log2(double v) Implementation of base 2 logorithm using the straightforward unoptimized method of log(x)/log(2).
static double	parseDouble(java.lang.String value, double defaultVal) Convert a string to a double (exceptions caught)
static int	parseInt(java.lang.String value, int defaultVal) Convert a string to an integer (exceptions caught)
static java.lang.String	parseTimeRelativeToNow(java.lang.String timestamp) Parse the ISO 8601 timestamp and format it relative now e.g.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MathUtils

public MathUtils()

Method Detail

GetLengthString

public static java.lang.String GetLengthString(long lengthInBytes)

Format file size for UI

Parameters:

lengthInBytes - the files size in bytes

Returns:

the file size formatted for human consumption

GetTimeRemainingString

public static java.lang.String GetTimeRemainingString(long timeRemainingMillis)

Get the amount of millis specified formatted for UI display of time remaining for an ongoing task, or for an elapsed amount of time

Parameters:

timeRemainingMillis - the time representation in milliseconds

Returns:

the formatted as hours minutes seconds

GetTimeRemainingOrDateString

public static java.lang.String GetTimeRemainingOrDateString(long now,
                                                            long elapsed,
                                                            boolean bDate)

Similar to GetTimeRemainingString, but not only useful for ongoing tasks, as it will display a date if the specified time range is more than 1 week

Parameters:

now - time now

elapsed - time to display

bDate - true to display date for >1week, false to display "2 weeks ago"

Returns:

the time remaining string

parseTimeRelativeToNow

public static java.lang.String parseTimeRelativeToNow(java.lang.String timestamp)

Parse the ISO 8601 timestamp and format it relative now e.g. 5 min ago

Parameters:

timestamp - the ISO 8601 timestamp

Returns:

the resulting offset from the current time in human language.

GetDownloadSpeedString

public static java.lang.String GetDownloadSpeedString(double averageSpeed)

Format for UI

Parameters:

averageSpeed - bytes per millis

Returns:

the download speed string

log2

public static double log2(double v)

Implementation of base 2 logorithm using the straightforward unoptimized method of log(x)/log(2).

Parameters:

v - the input value to used.

parseDouble

public static double parseDouble(java.lang.String value,
                                 double defaultVal)

Convert a string to a double (exceptions caught)

Parameters:

value - String value

defaultVal - Default value if conversion fails

Returns:

Converted value or default value if conversion failed

parseInt

public static int parseInt(java.lang.String value,
                           int defaultVal)

Convert a string to an integer (exceptions caught)

Parameters:

value - String value

defaultVal - Default value if conversion fails

Returns:

Converted value or default if failed