diff --git a/hutool-core/src/main/java/cn/hutool/core/io/unit/FileSizeUnit.java b/hutool-core/src/main/java/cn/hutool/core/io/unit/FileSizeUnit.java deleted file mode 100644 index 8d0da3ef3..000000000 --- a/hutool-core/src/main/java/cn/hutool/core/io/unit/FileSizeUnit.java +++ /dev/null @@ -1,233 +0,0 @@ -package cn.hutool.core.io.unit; - - -import java.text.DecimalFormat; - -/** - * 文件大小单位转换，方便于各种单位之间的转换 - * @author zrh 455741807@qq.com - * @date 2022-07-21 - */ -public enum FileSizeUnit { - /**字节*/ - BYTE { - @Override - public long toByte(long duration) { - return duration; - } - - @Override - public long toKB(long duration) { - return duration/(CKB/CBYTE); - } - - @Override - public long toMB(long duration) { - return duration/(CMB/CBYTE); - } - - @Override - public long toGB(long duration) { - return duration/(CGB/CBYTE); - } - - @Override - public long toTB(long duration) { - return duration/(CTB/CBYTE); - } - }, - - /**KB*/ - KB { - @Override - public long toByte(long duration) { - return x(duration, CKB/CBYTE, MAX/(CKB/CBYTE)); - } - - @Override - public long toKB(long duration) { - return duration; - } - - @Override - public long toMB(long duration) { - return duration/(CMB/CKB); - } - - @Override - public long toGB(long duration) { - return duration/(CGB/CKB); - } - - @Override - public long toTB(long duration) { - return duration/(CTB/CKB); - } - }, - - /**MB*/ - MB { - @Override - public long toByte(long duration) { - return x(duration, CMB/CBYTE, MAX/(CMB/CBYTE)); - } - - @Override - public long toKB(long duration) { - return x(duration, CMB/CKB, MAX/(CMB/CKB)); - } - - @Override - public long toMB(long duration) { - return duration; - } - - @Override - public long toGB(long duration) { - return duration/(CGB/CMB); - } - - @Override - public long toTB(long duration) { - return duration/(CTB/CMB); - } - }, - - /**GB*/ - GB { - @Override - public long toByte(long duration) { - return x(duration, CGB/CBYTE, MAX/(CGB/CBYTE)); - } - - @Override - public long toKB(long duration) { - return x(duration, CGB/CKB, MAX/(CGB/CKB)); - } - - @Override - public long toMB(long duration) { - return x(duration, CGB/CMB, MAX/(CGB/CMB)); - } - - @Override - public long toGB(long duration) { - return duration; - } - - @Override - public long toTB(long duration) { - return duration/(CTB/CGB); - } - }, - - /**TB*/ - TB { - @Override - public long toByte(long duration) { - return x(duration, CTB/CBYTE, MAX/(CTB/CBYTE)); - } - - @Override - public long toKB(long duration) { - return x(duration, CTB/CKB, MAX/(CTB/CKB)); - } - - @Override - public long toMB(long duration) { - return x(duration, CTB/CMB, MAX/(CTB/CMB)); - } - - @Override - public long toGB(long duration) { - return x(duration, CTB/CGB, MAX/(CTB/CTB)); - } - - @Override - public long toTB(long duration) { - return duration; - } - } - ; - - private static final long CBYTE = 1; - private static final long CKB = 1024; - private static final long CMB = (CKB * CKB); - private static final long CGB = (CKB * CMB); - private static final long CTB = (CKB * CGB); - - private static final long MAX = Long.MAX_VALUE; - - /** - * Scale d by m, checking for overflow. - * This has a short name to make above code more readable. - */ - private static long x(long d, long m, long over) { - if (d > over) { return Long.MAX_VALUE; } - if (d < -over) { return Long.MIN_VALUE; } - return d * m; - } - - - public long toByte(long duration) { throw new AbstractMethodError(); } - public long toKB(long duration) { throw new AbstractMethodError(); } - public long toMB(long duration) { throw new AbstractMethodError(); } - public long toGB(long duration) { throw new AbstractMethodError(); } - public long toTB(long duration) { throw new AbstractMethodError(); } - - /** - * 文件大小转换为可读带单位的字符串，如1.2GB、300.0MB等 - * @param length 文件大小，java.io.File.length()返回值，单位为Bytes - * @return - */ - public static String readableSizeStr(long length) { - return readableSizeStr(length, FileSizeUnit.BYTE); - } - - /** - * 文件大小转换为可读带单位的字符串，如1.2GB、300MB等 - * @param size 文件大小 - * @param unit 单位 - * @return - */ - public static String readableSizeStr(long size, FileSizeUnit unit) { - if(size <= 0 || unit == null) { - return ""; - } - long byteSize = unit.toByte(size); - String[] fileSizeArr = getFileSize(byteSize); - return fileSizeArr[0]+fileSizeArr[1]; - } - - /** - * 以合适的单位返回文件大小，返回数组，String[0]为文件大小数字，String[1]为单位 - * @param length The length, in bytes - * @return 返回数组，String[0]为文件大小数字，String[1]为单位 - */ - private static String[] getFileSize(long length) { - if(length <= 0) { - return new String[]{"0","Byte"}; - } - - String[] size = new String[2]; - DecimalFormat df = new DecimalFormat("#.0"); - if (length < CKB) { - size[0] = df.format(length); - size[1] = "Byte"; - } else if (length < CMB) { - size[0] = df.format( length*1.0/ CKB); - size[1] = "KB"; - } else if (length < CGB) { - size[0] = df.format(length*1.0/ CMB); - size[1] = "MB"; - } else if (length < CTB) { - size[0] = df.format(length*1.0/ CGB); - size[1] = "GB"; - } else { - size[0] = df.format(length*1.0/ CTB); - size[1] = "TB"; - } - return size; - } - -} diff --git a/hutool-core/src/test/java/cn/hutool/core/io/unit/FileSizeUnitTest.java b/hutool-core/src/test/java/cn/hutool/core/io/unit/FileSizeUnitTest.java deleted file mode 100644 index 3dd4a5bd9..000000000 --- a/hutool-core/src/test/java/cn/hutool/core/io/unit/FileSizeUnitTest.java +++ /dev/null @@ -1,120 +0,0 @@ -package cn.hutool.core.io.unit; - -import org.junit.Assert; -import org.junit.Test; - -/** - * 文件大小单位转换，方便于各种单位之间的转换 - * @author zrh 455741807@qq.com - * @date 2022-07-21 - */ -public class FileSizeUnitTest { - private static final long Byte = 1; - private static final long KB = 1024; - private static final long MB = (KB * KB); - private static final long GB = (KB * MB); - private static final long TB = (KB * GB); - - @Test - public void toByte() { - long byteS = 123, kbS = 1, mbS = 1, gbS = 1, tbS = 1; - - long byteT = FileSizeUnit.BYTE.toByte(byteS); - long kbT = FileSizeUnit.KB.toByte(kbS); - long mbT = FileSizeUnit.MB.toByte(mbS); - long gbT = FileSizeUnit.GB.toByte(gbS); - long tbT = FileSizeUnit.TB.toByte(tbS); - - Assert.assertEquals(byteS, byteT); - Assert.assertEquals(kbS*(KB/Byte), kbT); - Assert.assertEquals(mbS*(MB/Byte), mbT); - Assert.assertEquals(gbS*(GB/Byte), gbT); - Assert.assertEquals(tbS*(TB/Byte), tbT); - - - } - - @Test - public void toKB() { - long byteS = 1230, kbS = 456, mbS = 1, gbS = 1, tbS = 1; - - long byteT = FileSizeUnit.BYTE.toKB(byteS); - long kbT = FileSizeUnit.KB.toKB(kbS); - long mbT = FileSizeUnit.MB.toKB(mbS); - long gbT = FileSizeUnit.GB.toKB(gbS); - long tbT = FileSizeUnit.TB.toKB(tbS); - - Assert.assertEquals(byteS/(KB/Byte), byteT); - Assert.assertEquals(kbS, kbT); - Assert.assertEquals(mbS*(MB/KB), mbT); - Assert.assertEquals(gbS*(GB/KB), gbT); - Assert.assertEquals(tbS*(TB/KB), tbT); - } - - @Test - public void toMB() { - long byteS = 1230000, kbS = 456000, mbS = 789, gbS = 1, tbS = 1; - - long byteT = FileSizeUnit.BYTE.toMB(byteS); - long kbT = FileSizeUnit.KB.toMB(kbS); - long mbT = FileSizeUnit.MB.toMB(mbS); - long gbT = FileSizeUnit.GB.toMB(gbS); - long tbT = FileSizeUnit.TB.toMB(tbS); - - Assert.assertEquals(byteS/(MB/Byte), byteT); - Assert.assertEquals(kbS/(MB/KB), kbT); - Assert.assertEquals(mbS, mbT); - Assert.assertEquals(gbS*(GB/MB), gbT); - Assert.assertEquals(tbS*(TB/MB), tbT); - } - - @Test - public void toGB() { - long byteS = 1230000000, kbS = 456000000, mbS = 789000, gbS = 1, tbS = 1; - - long byteT = FileSizeUnit.BYTE.toGB(byteS); - long kbT = FileSizeUnit.KB.toGB(kbS); - long mbT = FileSizeUnit.MB.toGB(mbS); - long gbT = FileSizeUnit.GB.toGB(gbS); - long tbT = FileSizeUnit.TB.toGB(tbS); - - Assert.assertEquals(byteS/(GB/Byte), byteT); - Assert.assertEquals(kbS/(GB/KB), kbT); - Assert.assertEquals(mbS/(GB/MB), mbT); - Assert.assertEquals(gbS, gbT); - Assert.assertEquals(tbS*(TB/GB), tbT); - - } - - @Test - public void toTB() { - long byteS = 1230000000000L, kbS = 111000000000L, mbS = 789000000L, gbS = 1024, tbS = 1; - - long byteT = FileSizeUnit.BYTE.toTB(byteS); - long kbT = FileSizeUnit.KB.toTB(kbS); - long mbT = FileSizeUnit.MB.toTB(mbS); - long gbT = FileSizeUnit.GB.toTB(gbS); - long tbT = FileSizeUnit.TB.toTB(tbS); - - Assert.assertEquals(byteS/(TB/Byte), byteT); - Assert.assertEquals(kbS/(TB/KB), kbT); - Assert.assertEquals(mbS/(TB/MB), mbT); - Assert.assertEquals(gbS/(TB/GB), gbT); - Assert.assertEquals(tbS, tbT); - } - - @Test - public void readableSizeStr1() { - long size = 1024*1024; - String sizeStr = FileSizeUnit.readableSizeStr(size); - Assert.assertEquals("1.0MB", sizeStr); - } - - @Test - public void readableSizeStr2() { - long size = 123*1024; - String sizeStr = FileSizeUnit.readableSizeStr(size, FileSizeUnit.MB); - Assert.assertEquals("123.0GB", sizeStr); - } - -}