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Copy pathFileIOUtils.kt
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Copy pathFileIOUtils.kt
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389 lines (366 loc) · 9.9 KB
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package com.excellence.basetoolslibrary.utils
import com.excellence.basetoolslibrary.utils.EmptyUtils.isEmpty
import java.io.*
import java.nio.charset.Charset
/**
* <pre>
* author : VeiZhang
* blog : http://tiimor.cn
* time : 2022/4/7
* desc : 文件流相关
* </pre>
*/
object FileIOUtils {
private const val BUF_SIZE = 8 * 1024
/**
* 将字符串写入文件
*
* @param file
* @param content
* @param append
* @return
*/
@JvmStatic
fun writeFile(file: File?, content: String?, append: Boolean): Boolean {
try {
if (file == null || isEmpty(content)) {
return false
}
FileUtils.createNewFile(file)
val writer = BufferedWriter(FileWriter(file, append))
writer.write(content)
writer.close()
return true
} catch (e: java.lang.Exception) {
e.printStackTrace()
}
return false
}
/**
* 将字符串写入文件
*
* @param path
* @param content
* @param append
* @return
*/
@JvmStatic
fun writeFile(path: String?, content: String?, append: Boolean): Boolean {
if (isEmpty(path)) {
return false
}
return writeFile(File(path), content, append)
}
/**
* 将字节数组写入文件
*
* @param file
* @param bytes
* @param append
* @return
*/
@JvmStatic
fun writeFile(file: File?, bytes: ByteArray?, append: Boolean): Boolean {
try {
if (file == null || isEmpty(bytes)) {
return false
}
FileUtils.createNewFile(file)
val os: OutputStream = BufferedOutputStream(FileOutputStream(file, append))
os.write(bytes)
os.close()
return true
} catch (e: java.lang.Exception) {
e.printStackTrace()
}
return false
}
/**
* 将字节数组写入文件
*
* @param path
* @param bytes
* @param append
* @return
*/
@JvmStatic
fun writeFile(path: String?, bytes: ByteArray?, append: Boolean): Boolean {
if (isEmpty(path)) {
return false
}
return writeFile(File(path), bytes, append)
}
/**
* 将输入流写入文件里
*
* @param file
* @param stream
* @param append
* @param isCloseable 是否关闭输入流
* @return
*/
@JvmStatic
fun writeFile(file: File?, stream: InputStream?, append: Boolean, isCloseable: Boolean): Boolean {
try {
if (file == null || stream == null) {
return false
}
FileUtils.createNewFile(file)
val os: OutputStream = BufferedOutputStream(FileOutputStream(file, append))
val buf = ByteArray(BUF_SIZE)
var len: Int
while (stream.read(buf, 0, buf.size).also { len = it } != -1) {
os.write(buf, 0, len)
}
os.close()
if (isCloseable) {
stream.close()
}
return true
} catch (e: java.lang.Exception) {
e.printStackTrace()
}
return false
}
/**
* 将输入流写入文件里
*
* @param path
* @param stream
* @param append
* @param isCloseable 是否关闭输入流
* @return
*/
@JvmStatic
fun writeFile(path: String?, stream: InputStream?, append: Boolean, isCloseable: Boolean): Boolean {
if (isEmpty(path)) {
return false
}
return writeFile(File(path), stream, append, isCloseable)
}
/**
* 读取输入流为字节数组
*
* @param stream
* @return
*/
@JvmStatic
fun readFile2Bytes(stream: InputStream?): ByteArray? {
try {
val os = ByteArrayOutputStream()
val buf = ByteArray(BUF_SIZE)
var len: Int
while (stream!!.read(buf, 0, buf.size).also { len = it } != -1) {
os.write(buf, 0, len)
}
stream.close()
os.close()
return os.toByteArray()
} catch (e: java.lang.Exception) {
e.printStackTrace()
}
return null
}
/**
* 读取文件为字节数组
*
* @param file
* @return
*/
@JvmStatic
fun readFile2Bytes(file: File?): ByteArray? {
try {
if (!FileUtils.isFileExists(file)) {
return null
}
val stream: InputStream = FileInputStream(file)
return readFile2Bytes(stream)
} catch (e: java.lang.Exception) {
e.printStackTrace()
}
return null
}
/**
* 读取文件为字节数组
*
* @param path
* @return
*/
@JvmStatic
fun readFile2Bytes(path: String?): ByteArray? {
if (isEmpty(path)) {
return null
}
return readFile2Bytes(File(path))
}
/**
* 读取输入流为字符串
*
* @param stream
* @param charset
* @return
*/
@JvmStatic
fun readFile2String(stream: InputStream?, charset: String?): String {
try {
if (isEmpty(stream)) {
return ""
}
val bytes = readFile2Bytes(stream)!!
if (isEmpty(charset)) {
return String(bytes)
} else {
return String(bytes, Charset.forName(charset))
}
} catch (e: java.lang.Exception) {
e.printStackTrace()
}
return ""
}
/**
* 读取文件为字符串
*
* @param file
* @param charset UTF-8、GBK...
* @return
*/
@JvmStatic
fun readFile2String(file: File?, charset: String?): String {
try {
if (!FileUtils.isFileExists(file)) {
return ""
}
val stream: InputStream = FileInputStream(file)
return readFile2String(stream, charset)
} catch (e: java.lang.Exception) {
e.printStackTrace()
}
return ""
}
/**
* 读取文件为字符串
*
* @param path
* @param charset UTF-8、GBK...
* @return
*/
@JvmStatic
fun readFile2String(path: String?, charset: String?): String {
if (isEmpty(path)) {
return ""
}
return readFile2String(File(path), charset)
}
/**
* 拷贝文件
*
* @param stream
* @param os
* @return
*/
@JvmStatic
fun copyFile(stream: InputStream?, os: OutputStream?): Boolean {
try {
if (stream == null || os == null) {
return false
}
val buf = ByteArray(BUF_SIZE)
var len: Int
while (stream.read(buf, 0, buf.size).also { len = it } != -1) {
os.write(buf, 0, len)
}
stream.close()
os.close()
return true
} catch (e: java.lang.Exception) {
e.printStackTrace()
}
return false
}
/**
* 拷贝文件
*
* @param sourceFile
* @param targetFile
* @return
*/
@JvmStatic
fun copyFile(sourceFile: File?, targetFile: File?): Boolean {
if (!FileUtils.isFileExists(sourceFile)) {
return false
}
try {
return copyFile(FileInputStream(sourceFile), FileOutputStream(targetFile))
} catch (e: java.lang.Exception) {
e.printStackTrace()
}
return false
}
/**
* 拷贝文件
* 1.起始位置
* 2.截止长度，最大为原始文件长度；<=0，表示不截取
*
* @param sourceFile
* @param targetFile
* @param skip
* @param targetSize
* @return
*/
@JvmStatic
fun copyFile(sourceFile: File, targetFile: File?, skip: Long, targetSize: Long): Boolean {
if (!FileUtils.isFileExists(sourceFile)) {
return false
}
try {
val stream: InputStream = FileInputStream(sourceFile)
val os: OutputStream = FileOutputStream(targetFile)
stream.skip(skip)
if (targetSize > 0 && targetSize < sourceFile.length()) {
if (targetSize <= BUF_SIZE) {
val buf = ByteArray(targetSize.toInt())
var len: Int
if (stream.read(buf, 0, buf.size).also { len = it } != -1) {
os.write(buf, 0, len)
}
} else {
val buf = ByteArray(BUF_SIZE)
var len: Int
var count: Long = 0
while (stream.read(buf, 0, buf.size).also { len = it } != -1) {
os.write(buf, 0, len)
count += len.toLong()
if (targetSize + BUF_SIZE > count) {
len = stream.read(buf, 0, buf.size)
os.write(buf, 0, len)
count += len.toLong()
}
if (targetSize <= count) {
break
}
}
}
stream.close()
os.close()
return true
} else {
return copyFile(stream, os)
}
} catch (e: java.lang.Exception) {
e.printStackTrace()
}
return false
}
/**
* 拷贝文件，截止长度，最大为原始文件长度；<=0，表示不截取
*
* @param sourceFile
* @param targetFile
* @param targetSize
* @return
*/
@JvmStatic
fun copyFile(sourceFile: File, targetFile: File?, targetSize: Long): Boolean {
return copyFile(sourceFile, targetFile, 0, targetSize)
}
}