枚举 StorageSpeedUnit

enum StorageSpeedUnit{NUMERIC,STORAGE,SPEED;
}

日志 Loggable

public static void logger(String pattern,Object... paramArray) {String cls = MethodHandles.lookup().lookupClass().getName();System.Logger logger = System.getLogger(cls);String msg = String.format(pattern,paramArray);logger.log(System.Logger.Level.INFO,msg);
}

方法 formatStorageUnit

/*** @title formatStorageUnit 存储容量或速度格式化* @param storageByteSize 存储大小或速度，单位字节byte* @param su enum StorageSpeedUnit* NUMERIC：仅显示数字；STORAGE：数字加容量标识；SPEED：数字加速度标识* @return String 格式化后的目标字符串* @create 2024-05-13 21:09:43* @author elf* @since 1.0.0*/
public static String formatStorageUnit(final long storageByteSize,StorageSpeedUnit su) {if (storageByteSize < 0) {return "0";}String[] unitArray = new String[]{};switch (su) {case null -> {break;}case NUMERIC -> {break;}case STORAGE -> unitArray = new String[]{"B","KB","MB","GB","TB"};case SPEED -> unitArray = new String[]{"B/s","KB/s","MB/s","GB/s","TB/s"};default -> {break;}}int digitGroup = (int)(Math.log10(storageByteSize) / Math.log10(1024));double number = storageByteSize / Math.pow(1024,digitGroup);var formatter =  new DecimalFormat("#,##0.##");if (unitArray.length == 0) {return formatter.format(number);} else {return formatter.format(number) + " " + unitArray[digitGroup];}
}

测试

public static void main(String[] sa) {var formatSize = 10737418;var formatEmpty = formatStorageUnit(formatSize,null);var formatNumeric = formatStorageUnit(formatSize,StorageSpeedUnit.NUMERIC);var formatStorage = formatStorageUnit(formatSize,StorageSpeedUnit.STORAGE);var formatSpeed = formatStorageUnit(formatSize,StorageSpeedUnit.SPEED);var pattern = "empty:%s,numeric:%s,storage:%s,speed:%s";Loggable.logger(pattern,formatEmpty,formatNumeric,formatStorage,formatSpeed); 
}

5月 13, 2024 9:16:38 下午 com.elf.core.logger.Loggable logger
信息: empty:10.24,numeric:10.24,storage:10.24 MB,speed:10.24 MB/s