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pick 97420a31d The big reformat of 2020

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This commit is contained in:
yueh
2020-06-16 21:41:28 +02:00
parent 5304b3febe
commit 5225ea426b
2252 changed files with 95466 additions and 118582 deletions
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src/main/java/appeng/util/ReadableNumberConverter.java
+66 -74
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@@ -18,13 +18,11 @@
package appeng.util;
import java.math.RoundingMode;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.Format;
/**
* Converter class to convert a large number into a SI system.
*
@@ -32,93 +30,87 @@ import java.text.Format;
* @version rv2
* @since rv2
*/
public enum ReadableNumberConverter implements ISlimReadableNumberConverter, IWideReadableNumberConverter
{
INSTANCE;
public enum ReadableNumberConverter implements ISlimReadableNumberConverter, IWideReadableNumberConverter {
INSTANCE;
/**
* Defines the base for a division, non-si standard could be 1024 for kilobytes
*/
private static final int DIVISION_BASE = 1000;
/**
* Defines the base for a division, non-si standard could be 1024 for kilobytes
*/
private static final int DIVISION_BASE = 1000;
/**
* String representation of the sorted postfixes
*/
private static final char[] ENCODED_POSTFIXES = "KMGTPE".toCharArray();
/**
* String representation of the sorted postfixes
*/
private static final char[] ENCODED_POSTFIXES = "KMGTPE".toCharArray();
private final Format format;
private final Format format;
/**
* Initializes the specific decimal format with special format for negative and positive numbers
*/
ReadableNumberConverter()
{
final DecimalFormatSymbols symbols = new DecimalFormatSymbols();
symbols.setDecimalSeparator( '.' );
final DecimalFormat format = new DecimalFormat( ".#;0.#" );
format.setDecimalFormatSymbols( symbols );
format.setRoundingMode( RoundingMode.DOWN );
/**
* Initializes the specific decimal format with special format for negative and
* positive numbers
*/
ReadableNumberConverter() {
final DecimalFormatSymbols symbols = new DecimalFormatSymbols();
symbols.setDecimalSeparator('.');
final DecimalFormat format = new DecimalFormat(".#;0.#");
format.setDecimalFormatSymbols(symbols);
format.setRoundingMode(RoundingMode.DOWN);
this.format = format;
}
this.format = format;
}
@Override
public String toSlimReadableForm( final long number )
{
return this.toReadableFormRestrictedByWidth( number, 3 );
}
@Override
public String toSlimReadableForm(final long number) {
return this.toReadableFormRestrictedByWidth(number, 3);
}
/**
* restricts a string representation of a number to a specific width
*
* @param number to be formatted number
* @param width width limitation of the resulting number
*
* @return formatted number restricted by the width limitation
*/
private String toReadableFormRestrictedByWidth( final long number, final int width )
{
assert number >= 0;
/**
* restricts a string representation of a number to a specific width
*
* @param number to be formatted number
* @param width width limitation of the resulting number
*
* @return formatted number restricted by the width limitation
*/
private String toReadableFormRestrictedByWidth(final long number, final int width) {
assert number >= 0;
// handles low numbers more efficiently since no format is needed
final String numberString = Long.toString( number );
int numberSize = numberString.length();
if( numberSize <= width )
{
return numberString;
}
// handles low numbers more efficiently since no format is needed
final String numberString = Long.toString(number);
int numberSize = numberString.length();
if (numberSize <= width) {
return numberString;
}
long base = number;
double last = base * 1000;
int exponent = -1;
String postFix = "";
long base = number;
double last = base * 1000;
int exponent = -1;
String postFix = "";
while( numberSize > width )
{
last = base;
base /= DIVISION_BASE;
while (numberSize > width) {
last = base;
base /= DIVISION_BASE;
exponent++;
exponent++;
// adds +1 due to the postfix
numberSize = Long.toString( base ).length() + 1;
postFix = String.valueOf( ENCODED_POSTFIXES[exponent] );
}
// adds +1 due to the postfix
numberSize = Long.toString(base).length() + 1;
postFix = String.valueOf(ENCODED_POSTFIXES[exponent]);
}
final String withPrecision = this.format.format( last / DIVISION_BASE ) + postFix;
final String withoutPrecision = Long.toString( base ) + postFix;
final String withPrecision = this.format.format(last / DIVISION_BASE) + postFix;
final String withoutPrecision = Long.toString(base) + postFix;
final String slimResult = ( withPrecision.length() <= width ) ? withPrecision : withoutPrecision;
final String slimResult = (withPrecision.length() <= width) ? withPrecision : withoutPrecision;
// post condition
assert slimResult.length() <= width;
// post condition
assert slimResult.length() <= width;
return slimResult;
}
return slimResult;
}
@Override
public String toWideReadableForm( final long number )
{
return this.toReadableFormRestrictedByWidth( number, 4 );
}
@Override
public String toWideReadableForm(final long number) {
return this.toReadableFormRestrictedByWidth(number, 4);
}
}