org.openeuler.sun.misc

类 HexDumpEncoder

java.lang.Object

org.openeuler.sun.misc.HexDumpEncoder

public class HexDumpEncoder
extends Object

This class encodes a buffer into the classic: "Hexadecimal Dump" format of the past. It is useful for analyzing the contents of binary buffers. The format produced is as follows:

 xxxx: 00 11 22 33 44 55 66 77   88 99 aa bb cc dd ee ff ................
 

Where xxxx is the offset into the buffer in 16 byte chunks, followed by ascii coded hexadecimal bytes followed by the ASCII representation of the bytes or '.' if they are not valid bytes.

作者:

Chuck McManis

字段概要

字段

限定符和类型	字段和说明
private int	currentByte
private int	offset
protected PrintStream	pStream Stream that understands "printing"
private byte[]	thisLine
private int	thisLineLength

构造器概要

构造器

构造器和说明
HexDumpEncoder()

方法概要

限定符和类型	方法和说明
protected int	bytesPerAtom()
protected int	bytesPerLine()
String	encode(byte[] aBuffer) A 'streamless' version of encode that simply takes a buffer of bytes and returns a string containing the encoded buffer.
String	encode(ByteBuffer aBuffer) A 'streamless' version of encode that simply takes a ByteBuffer and returns a string containing the encoded buffer.
void	encode(InputStream inStream, OutputStream outStream) Encode bytes from the input stream, and write them as text characters to the output stream.
protected void	encodeAtom(OutputStream o, byte[] buf, int off, int len)
String	encodeBuffer(byte[] aBuffer) A 'streamless' version of encode that simply takes a buffer of bytes and returns a string containing the encoded buffer.
void	encodeBuffer(byte[] aBuffer, OutputStream aStream) Encode the buffer in aBuffer and write the encoded result to the OutputStream aStream.
void	encodeBuffer(ByteBuffer aBuffer, OutputStream aStream) Encode the aBuffer ByteBuffer and write the encoded result to the OutputStream aStream.
void	encodeBuffer(InputStream inStream, OutputStream outStream) Encode bytes from the input stream, and write them as text characters to the output stream.
protected void	encodeBufferPrefix(OutputStream o)
protected void	encodeLinePrefix(OutputStream o, int len)
protected void	encodeLineSuffix(OutputStream o)
private byte[]	getBytes(ByteBuffer bb) Return a byte array from the remaining bytes in this ByteBuffer.
(专用程序包) static void	hexDigit(PrintStream p, byte x)
protected int	readFully(InputStream in, byte[] buffer) This method works around the bizarre semantics of BufferedInputStream's read method.

从类继承的方法 java.lang.Object

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

字段详细资料

offset

private int offset

thisLineLength

private int thisLineLength

currentByte

private int currentByte

thisLine

private byte[] thisLine

pStream

protected PrintStream pStream

Stream that understands "printing"

构造器详细资料

HexDumpEncoder

public HexDumpEncoder()

方法详细资料

hexDigit

static void hexDigit(PrintStream p,
                     byte x)

bytesPerAtom

protected int bytesPerAtom()

bytesPerLine

protected int bytesPerLine()

encodeBufferPrefix

protected void encodeBufferPrefix(OutputStream o)
                           throws IOException

抛出:

IOException

encodeLinePrefix

protected void encodeLinePrefix(OutputStream o,
                                int len)
                         throws IOException

抛出:

IOException

encodeAtom

protected void encodeAtom(OutputStream o,
                          byte[] buf,
                          int off,
                          int len)
                   throws IOException

抛出:

IOException

encodeLineSuffix

protected void encodeLineSuffix(OutputStream o)
                         throws IOException

抛出:

IOException

readFully

protected int readFully(InputStream in,
                        byte[] buffer)
                 throws IOException

This method works around the bizarre semantics of BufferedInputStream's read method.

抛出:

IOException

encode

public void encode(InputStream inStream,
                   OutputStream outStream)
            throws IOException

Encode bytes from the input stream, and write them as text characters to the output stream. This method will run until it exhausts the input stream, but does not print the line suffix for a final line that is shorter than bytesPerLine().

抛出:

IOException

encode

public String encode(byte[] aBuffer)

A 'streamless' version of encode that simply takes a buffer of bytes and returns a string containing the encoded buffer.

getBytes

private byte[] getBytes(ByteBuffer bb)

Return a byte array from the remaining bytes in this ByteBuffer.

The ByteBuffer's position will be advanced to ByteBuffer's limit.

To avoid an extra copy, the implementation will attempt to return the byte array backing the ByteBuffer. If this is not possible, a new byte array will be created.

encode

public String encode(ByteBuffer aBuffer)

A 'streamless' version of encode that simply takes a ByteBuffer and returns a string containing the encoded buffer.

The ByteBuffer's position will be advanced to ByteBuffer's limit.

encodeBuffer

public void encodeBuffer(InputStream inStream,
                         OutputStream outStream)
                  throws IOException

Encode bytes from the input stream, and write them as text characters to the output stream. This method will run until it exhausts the input stream. It differs from encode in that it will add the line at the end of a final line that is shorter than bytesPerLine().

抛出:

IOException

encodeBuffer

public void encodeBuffer(byte[] aBuffer,
                         OutputStream aStream)
                  throws IOException

Encode the buffer in aBuffer and write the encoded result to the OutputStream aStream.

抛出:

IOException

encodeBuffer

public String encodeBuffer(byte[] aBuffer)

A 'streamless' version of encode that simply takes a buffer of bytes and returns a string containing the encoded buffer.

encodeBuffer

public void encodeBuffer(ByteBuffer aBuffer,
                         OutputStream aStream)
                  throws IOException

Encode the aBuffer ByteBuffer and write the encoded result to the OutputStream aStream.

The ByteBuffer's position will be advanced to ByteBuffer's limit.

抛出:

IOException