package com.blade.kit.reflect;
import com.blade.kit.CollectionKit;
import com.blade.kit.DateKit;
import com.blade.kit.IOKit;
import com.blade.kit.StringKit;
import com.blade.kit.base.ConstKit;
import java.io.*;
import java.util.Date;
import java.util.Set;
public final class ConvertKit {
private static final Set<Class<?>> basicTypes;
private static final char hexDigits[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
static {
basicTypes = CollectionKit.newHashSet(16);
basicTypes.add(Boolean.class);
basicTypes.add(boolean.class);
basicTypes.add(Integer.class);
basicTypes.add(int.class);
basicTypes.add(Short.class);
basicTypes.add(short.class);
basicTypes.add(Long.class);
basicTypes.add(long.class);
basicTypes.add(Float.class);
basicTypes.add(float.class);
basicTypes.add(Double.class);
basicTypes.add(double.class);
basicTypes.add(Character.class);
basicTypes.add(char.class);
}
public static boolean isBasicType(Class<?> type){
return basicTypes.contains(type);
}
/**
* byteArr转hexString
* <p>例如：</p>
* bytes2HexString(new byte[] { 0, (byte) 0xa8 }) returns 00A8
*
* @param bytes 字节数组
* @return 16进制大写字符串
*/
public static String bytes2HexString(byte[] bytes) {
if (bytes == null) return null;
int len = bytes.length;
if (len <= 0) return null;
char[] ret = new char[len << 1];
for (int i = 0, j = 0; i < len; i++) {
ret[j++] = hexDigits[bytes[i] >>> 4 & 0x0f];
ret[j++] = hexDigits[bytes[i] & 0x0f];
}
return new String(ret).toLowerCase();
}
/**
* hexString转byteArr
* <p>例如：</p>
* hexString2Bytes("00A8") returns { 0, (byte) 0xA8 }
*
* @param hexString 十六进制字符串
* @return 字节数组
*/
public static byte[] hexString2Bytes(String hexString) {
if (StringKit.isBlank(hexString)) return null;
int len = hexString.length();
if (len % 2 != 0) {
hexString = "0" + hexString;
len = len + 1;
}
char[] hexBytes = hexString.toUpperCase().toCharArray();
byte[] ret = new byte[len >> 1];
for (int i = 0; i < len; i += 2) {
ret[i >> 1] = (byte) (hex2Dec(hexBytes[i]) << 4 | hex2Dec(hexBytes[i + 1]));
}
return ret;
}
/**
* hexChar转int
*
* @param hexChar hex单个字节
* @return 0..15
*/
private static int hex2Dec(char hexChar) {
if (hexChar >= '0' && hexChar <= '9') {
return hexChar - '0';
} else if (hexChar >= 'A' && hexChar <= 'F') {
return hexChar - 'A' + 10;
} else {
throw new IllegalArgumentException();
}
}
/**
* charArr转byteArr
*
* @param chars 字符数组
* @return 字节数组
*/
public static byte[] chars2Bytes(char[] chars) {
if (chars == null || chars.length <= 0) return null;
int len = chars.length;
byte[] bytes = new byte[len];
for (int i = 0; i < len; i++) {
bytes[i] = (byte) (chars[i]);
}
return bytes;
}
/**
* byteArr转charArr
*
* @param bytes 字节数组
* @return 字符数组
*/
public static char[] bytes2Chars(byte[] bytes) {
if (bytes == null) return null;
int len = bytes.length;
if (len <= 0) return null;
char[] chars = new char[len];
for (int i = 0; i < len; i++) {
chars[i] = (char) (bytes[i] & 0xff);
}
return chars;
}
/**
* 以unit为单位的内存大小转字节数
*
* @param memorySize 大小
* @param unit 单位类型
* <ul>
* <li>{@link ConstKit.MemoryUnit#BYTE}: 字节</li>
* <li>{@link ConstKit.MemoryUnit#KB} : 千字节</li>
* <li>{@link ConstKit.MemoryUnit#MB} : 兆</li>
* <li>{@link ConstKit.MemoryUnit#GB} : GB</li>
* </ul>
* @return 字节数
*/
public static long memorySize2Byte(long memorySize, ConstKit.MemoryUnit unit) {
if (memorySize < 0) return -1;
switch (unit) {
default:
case BYTE:
return memorySize;
case KB:
return memorySize * ConstKit.KB;
case MB:
return memorySize * ConstKit.MB;
case GB:
return memorySize * ConstKit.GB;
}
}
/**
* 字节数转以unit为单位的内存大小
*
* @param byteNum 字节数
* @param unit 单位类型
* <ul>
* <li>{@link ConstKit.MemoryUnit#BYTE}: 字节</li>
* <li>{@link ConstKit.MemoryUnit#KB} : 千字节</li>
* <li>{@link ConstKit.MemoryUnit#MB} : 兆</li>
* <li>{@link ConstKit.MemoryUnit#GB} : GB</li>
* </ul>
* @return 以unit为单位的size
*/
public static double byte2MemorySize(long byteNum, ConstKit.MemoryUnit unit) {
if (byteNum < 0) return -1;
switch (unit) {
default:
case BYTE:
return (double) byteNum;
case KB:
return (double) byteNum / ConstKit.KB;
case MB:
return (double) byteNum / ConstKit.MB;
case GB:
return (double) byteNum / ConstKit.GB;
}
}
/**
* 字节数转合适内存大小
* <p>保留3位小数</p>
*
* @param byteNum 字节数
* @return 合适内存大小
*/
public static String byte2FitMemorySize(long byteNum) {
if (byteNum < 0) {
return "shouldn't be less than zero!";
} else if (byteNum < ConstKit.KB) {
return String.format("%.3fB", byteNum + 0.0005);
} else if (byteNum < ConstKit.MB) {
return String.format("%.3fKB", byteNum / ConstKit.KB + 0.0005);
} else if (byteNum < ConstKit.GB) {
return String.format("%.3fMB", byteNum / ConstKit.MB + 0.0005);
} else {
return String.format("%.3fGB", byteNum / ConstKit.GB + 0.0005);
}
}
/**
* 以unit为单位的时间长度转毫秒时间戳
*
* @param timeSpan 毫秒时间戳
* @param unit 单位类型
* <ul>
* <li>{@link ConstKit.TimeUnit#MSEC}: 毫秒</li>
* <li>{@link ConstKit.TimeUnit#SEC }: 秒</li>
* <li>{@link ConstKit.TimeUnit#MIN }: 分</li>
* <li>{@link ConstKit.TimeUnit#HOUR}: 小时</li>
* <li>{@link ConstKit.TimeUnit#DAY }: 天</li>
* </ul>
* @return 毫秒时间戳
*/
public static long timeSpan2Millis(long timeSpan, ConstKit.TimeUnit unit) {
switch (unit) {
default:
case MSEC:
return timeSpan;
case SEC:
return timeSpan * ConstKit.SEC;
case MIN:
return timeSpan * ConstKit.MIN;
case HOUR:
return timeSpan * ConstKit.HOUR;
case DAY:
return timeSpan * ConstKit.DAY;
}
}
/**
* 毫秒时间戳转以unit为单位的时间长度
*
* @param millis 毫秒时间戳
* @param unit 单位类型
* <ul>
* <li>{@link ConstKit.TimeUnit#MSEC}: 毫秒</li>
* <li>{@link ConstKit.TimeUnit#SEC }: 秒</li>
* <li>{@link ConstKit.TimeUnit#MIN }: 分</li>
* <li>{@link ConstKit.TimeUnit#HOUR}: 小时</li>
* <li>{@link ConstKit.TimeUnit#DAY }: 天</li>
* </ul>
* @return 以unit为单位的时间长度
*/
public static long millis2TimeSpan(long millis, ConstKit.TimeUnit unit) {
switch (unit) {
default:
case MSEC:
return millis;
case SEC:
return millis / ConstKit.SEC;
case MIN:
return millis / ConstKit.MIN;
case HOUR:
return millis / ConstKit.HOUR;
case DAY:
return millis / ConstKit.DAY;
}
}
/**
* 毫秒时间戳转合适时间长度
*
* @param millis 毫秒时间戳
* <p>小于等于0，返回null</p>
* @param precision 精度
* <p>precision = 0，返回null</p>
* <p>precision = 1，返回天</p>
* <p>precision = 2，返回天和小时</p>
* <p>precision = 3，返回天、小时和分钟</p>
* <p>precision = 4，返回天、小时、分钟和秒</p>
* <p>precision >= 5，返回天、小时、分钟、秒和毫秒</p>
* @return 合适时间长度
*/
public static String millis2FitTimeSpan(long millis, int precision) {
if (millis <= 0 || precision <= 0) return null;
StringBuilder sb = new StringBuilder();
String[] units = {"天", "小时", "分钟", "秒", "毫秒"};
int[] unitLen = {86400000, 3600000, 60000, 1000, 1};
precision = Math.min(precision, 5);
for (int i = 0; i < precision; i++) {
if (millis >= unitLen[i]) {
long mode = millis / unitLen[i];
millis -= mode * unitLen[i];
sb.append(mode).append(units[i]);
}
}
return sb.toString();
}
/**
* bytes转bits
*
* @param bytes 字节数组
* @return bits
*/
public static String bytes2Bits(byte[] bytes) {
StringBuilder sb = new StringBuilder();
for (byte aByte : bytes) {
for (int j = 7; j >= 0; --j) {
sb.append(((aByte >> j) & 0x01) == 0 ? '0' : '1');
}
}
return sb.toString();
}
/**
* bits转bytes
*
* @param bits 二进制
* @return bytes
*/
public static byte[] bits2Bytes(String bits) {
int lenMod = bits.length() % 8;
int byteLen = bits.length() / 8;
// 不是8的倍数前面补0
if (lenMod != 0) {
for (int i = lenMod; i < 8; i++) {
bits = "0" + bits;
}
byteLen++;
}
byte[] bytes = new byte[byteLen];
for (int i = 0; i < byteLen; ++i) {
for (int j = 0; j < 8; ++j) {
bytes[i] <<= 1;
bytes[i] |= bits.charAt(i * 8 + j) - '0';
}
}
return bytes;
}
/**
* inputStream转outputStream
*
* @param is 输入流
* @return outputStream子类
*/
public static ByteArrayOutputStream input2OutputStream(InputStream is) {
if (is == null) return null;
try {
ByteArrayOutputStream os = new ByteArrayOutputStream();
byte[] b = new byte[ConstKit.KB];
int len;
while ((len = is.read(b, 0, ConstKit.KB)) != -1) {
os.write(b, 0, len);
}
return os;
} catch (IOException e) {
e.printStackTrace();
return null;
} finally {
IOKit.closeQuietly(is);
}
}
/**
* outputStream转inputStream
*
* @param out 输出流
* @return inputStream子类
*/
public ByteArrayInputStream output2InputStream(OutputStream out) {
if (out == null) return null;
return new ByteArrayInputStream(((ByteArrayOutputStream) out).toByteArray());
}
/**
* inputStream转byteArr
*
* @param is 输入流
* @return 字节数组
*/
public static byte[] inputStream2Bytes(InputStream is) {
if (is == null) return null;
return input2OutputStream(is).toByteArray();
}
/**
* byteArr转inputStream
*
* @param bytes 字节数组
* @return 输入流
*/
public static InputStream bytes2InputStream(byte[] bytes) {
if (bytes == null || bytes.length <= 0) return null;
return new ByteArrayInputStream(bytes);
}
/**
* outputStream转byteArr
*
* @param out 输出流
* @return 字节数组
*/
public static byte[] outputStream2Bytes(OutputStream out) {
if (out == null) return null;
return ((ByteArrayOutputStream) out).toByteArray();
}
/**
* outputStream转byteArr
*
* @param bytes 字节数组
* @return 字节数组
*/
public static OutputStream bytes2OutputStream(byte[] bytes) {
if (bytes == null || bytes.length <= 0) return null;
ByteArrayOutputStream os = null;
try {
os = new ByteArrayOutputStream();
os.write(bytes);
return os;
} catch (IOException e) {
e.printStackTrace();
return null;
} finally {
IOKit.closeQuietly(os);
}
}
/**
* inputStream转string按编码
*
* @param is 输入流
* @param charsetName 编码格式
* @return 字符串
*/
public static String inputStream2String(InputStream is, String charsetName) {
if (is == null || StringKit.isBlank(charsetName)) return null;
try {
return new String(inputStream2Bytes(is), charsetName);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
}
}
/**
* string转inputStream按编码
*
* @param string 字符串
* @param charsetName 编码格式
* @return 输入流
*/
public static InputStream string2InputStream(String string, String charsetName) {
if (string == null || StringKit.isBlank(charsetName)) return null;
try {
return new ByteArrayInputStream(string.getBytes(charsetName));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
}
}
/**
* outputStream转string按编码
*
* @param out 输出流
* @param charsetName 编码格式
* @return 字符串
*/
public static String outputStream2String(OutputStream out, String charsetName) {
if (out == null || StringKit.isBlank(charsetName)) return null;
try {
return new String(outputStream2Bytes(out), charsetName);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
}
}
/**
* string转outputStream按编码
*
* @param string 字符串
* @param charsetName 编码格式
* @return 输入流
*/
public static OutputStream string2OutputStream(String string, String charsetName) {
if (string == null || StringKit.isBlank(charsetName)) return null;
try {
return bytes2OutputStream(string.getBytes(charsetName));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
}
}
public static Object convert(Class<?> type, String value){
if (type == Integer.class) {
return Integer.parseInt(value);
} else if (type == String.class) {
return value;
} else if (type == Date.class) {
return DateKit.convertToDate(value);
} else if (type == Double.class) {
return Double.parseDouble(value);
} else if (type == Float.class) {
return Float.parseFloat(value);
} else if (type == Long.class) {
return Long.parseLong(value);
} else if (type == Boolean.class) {
return Boolean.parseBoolean(value);
} else if (type == Short.class) {
return Short.parseShort(value);
}
return value;
}
}