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package de.danoeh.antennapod.util;
import android.util.Log;
/** Provides methods for converting various units. */
public final class Converter {
/** Class shall not be instantiated. */
private Converter() {
}
/** Logging tag. */
private static final String TAG = "Converter";
/** Indicates that the value is in the Byte range.*/
private static final int B_RANGE = 0;
/** Indicates that the value is in the Kilobyte range.*/
private static final int KB_RANGE = 1;
/** Indicates that the value is in the Megabyte range.*/
private static final int MB_RANGE = 2;
/** Indicates that the value is in the Gigabyte range.*/
private static final int GB_RANGE = 3;
/** Determines the length of the number for best readability.*/
private static final int NUM_LENGTH = 1000;
private static final int HOURS_MIL = 3600000;
private static final int MINUTES_MIL = 60000;
private static final int SECONDS_MIL = 1000;
/** Takes a byte-value and converts it into a more readable
* String.
* @param input The value to convert
* @return The converted String with a unit
* */
public static String byteToString(final long input) {
int i = 0;
int result = 0;
for (i = 0; i < GB_RANGE + 1; i++) {
result = (int) (input / Math.pow(1024, i));
if (result < NUM_LENGTH) {
break;
}
}
switch (i) {
case B_RANGE:
return result + " B";
case KB_RANGE:
return result + " KB";
case MB_RANGE:
return result + " MB";
case GB_RANGE:
return result + " GB";
default:
Log.e(TAG, "Error happened in byteToString");
return "ERROR";
}
}
/** Converts milliseconds to a string containing hours, minutes and seconds */
public static String getDurationStringLong(int duration) {
int h = duration / HOURS_MIL;
int rest = duration - h * HOURS_MIL;
int m = rest / MINUTES_MIL;
rest -= m * MINUTES_MIL;
int s = rest / SECONDS_MIL;
return String.format("%02d:%02d:%02d", h, m, s);
}
/** Converts milliseconds to a string containing hours and minutes */
public static String getDurationStringShort(int duration) {
int h = duration / HOURS_MIL;
int rest = duration - h * HOURS_MIL;
int m = rest / MINUTES_MIL;
return String.format("%02d:%02d", h, m);
}
}
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