app.myoss.cloud.core.lang.io

Class StreamUtil

java.lang.Object

app.myoss.cloud.core.lang.io.StreamUtil

public class StreamUtil
extends Object

Stream流工具类

Since:

2018年5月9日 上午10:17:26

Author:

Jerry.Chen

Field Summary

Fields

Modifier and Type	Field and Description
static int	BUFFER_SIZE 缓冲字节大小
static int	COMPRESS_BUFFER 压缩缓冲字节大小

Constructor Summary

Constructors

Constructor and Description
StreamUtil()

Method Summary

Modifier and Type	Method and Description
static byte[]	compress(byte[] sourceData) 数据压缩
static void	compress(InputStream inputStream, OutputStream outputStream) 数据压缩
static String	compressBase64String(String sourceData) 使用 Base64 进行数据压缩
static byte[]	compressString(String sourceData) 数据压缩
static void	copy(byte[] in, OutputStream out) Copy the contents of the given byte array to the given OutputStream.
static int	copy(InputStream in, OutputStream out) Copy the contents of the given InputStream to the given OutputStream.
static void	copy(String in, Charset charset, OutputStream out) Copy the contents of the given String to the given output OutputStream.
static byte[]	copyToByteArray(InputStream in) Copy the contents of the given InputStream into a new byte array.
static String	copyToString(InputStream in, Charset charset) Copy the contents of the given InputStream into a String.
static byte[]	decompress(byte[] sourceData) 数据解压缩
static void	decompress(InputStream inputStream, OutputStream outputStream) 数据解压缩
static String	decompressBase64String(String sourceData) 使用 Base64 进行数据解压缩
static String	decompressString(byte[] sourceData) 数据解压缩

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BUFFER_SIZE

public static final int BUFFER_SIZE

缓冲字节大小

See Also:

Constant Field Values

COMPRESS_BUFFER

public static final int COMPRESS_BUFFER

压缩缓冲字节大小

See Also:

Constant Field Values

Constructor Detail

StreamUtil

public StreamUtil()

Method Detail

copyToByteArray

public static byte[] copyToByteArray(InputStream in)

Copy the contents of the given InputStream into a new byte array. Leaves the stream open when done.

Parameters:

in - the stream to copy from (may be null or empty)

Returns:

the new byte array that has been copied to (possibly empty)

copyToString

public static String copyToString(InputStream in,
                                  Charset charset)

Copy the contents of the given InputStream into a String. Leaves the stream open when done.

Parameters:

in - the InputStream to copy from (may be null or empty)

charset - the InputStream charset

Returns:

the String that has been copied to (possibly empty)

See Also:

StreamUtils.copyToString(InputStream, Charset)

copy

public static void copy(byte[] in,
                        OutputStream out)

Copy the contents of the given byte array to the given OutputStream. Leaves the stream open when done.

Parameters:

in - the byte array to copy from

out - the OutputStream to copy to

See Also:

StreamUtils.copy(byte[], OutputStream)

copy

public static void copy(String in,
                        Charset charset,
                        OutputStream out)

Copy the contents of the given String to the given output OutputStream. Leaves the stream open when done.

Parameters:

in - the String to copy from

charset - the Charset

out - the OutputStream to copy to

See Also:

StreamUtils.copy(String, Charset, OutputStream)

copy

public static int copy(InputStream in,
                       OutputStream out)

Copy the contents of the given InputStream to the given OutputStream. Leaves both streams open when done.

Parameters:

in - the InputStream to copy from

out - the OutputStream to copy to

Returns:

the number of bytes copied

See Also:

StreamUtils.copy(InputStream, OutputStream)

compress

public static void compress(InputStream inputStream,
                            OutputStream outputStream)

数据压缩

Parameters:

inputStream - 待压缩的数据流

outputStream - 压缩后的数据流

decompress

public static void decompress(InputStream inputStream,
                              OutputStream outputStream)

数据解压缩

Parameters:

inputStream - 待解压的数据流

outputStream - 解压后的数据流

compress

public static byte[] compress(byte[] sourceData)

数据压缩

Parameters:

sourceData - 待压缩的原始数据

Returns:

压缩后的数据流

decompress

public static byte[] decompress(byte[] sourceData)

数据解压缩

Parameters:

sourceData - 待解压的数据

Returns:

解压后的数据流

compressString

public static byte[] compressString(String sourceData)

数据压缩

Parameters:

sourceData - 待压缩的原始数据

Returns:

压缩后的数据流

decompressString

public static String decompressString(byte[] sourceData)

数据解压缩

Parameters:

sourceData - 待解压的数据

Returns:

解压后的数据流

compressBase64String

public static String compressBase64String(String sourceData)

使用 Base64 进行数据压缩

Parameters:

sourceData - 待压缩的原始数据

Returns:

压缩后的 Base64 字符串

decompressBase64String

public static String decompressBase64String(String sourceData)

使用 Base64 进行数据解压缩

Parameters:

sourceData - 待解压的数据

Returns:

解压后的 Base64 字符串