Package org.verapdf.xmp.impl

Class ByteBuffer

java.lang.Object

org.verapdf.xmp.impl.ByteBuffer

public class ByteBuffer
extends Object

Byte buffer container including length of valid data.

Since:

11.10.2006

Constructor Summary

Constructors

Constructor	Description
ByteBuffer(byte[] buffer)
ByteBuffer(byte[] buffer, int length)
ByteBuffer(byte[] buffer, int offset, int length)
ByteBuffer(int initialCapacity)
ByteBuffer(InputStream in)	Loads the stream into a buffer.

Method Summary

Modifier and Type	Method	Description
void	append(byte b)	Appends a byte to the buffer.
void	append(byte[] bytes)	Append a byte array to the buffer
void	append(byte[] bytes, int offset, int len)	Appends a byte array or part of to the buffer.
void	append(ByteBuffer anotherBuffer)	Append another buffer to this buffer.
byte	byteAt(int index)
int	charAt(int index)
InputStream	getByteStream()
String	getEncoding()	Detects the encoding of the byte buffer, stores and returns it.
int	length()

Methods inherited from class java.lang.Object

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

Constructor Details

ByteBuffer

public ByteBuffer(int initialCapacity)

Parameters:

initialCapacity - the initial capacity for this buffer

ByteBuffer

public ByteBuffer(byte[] buffer)

Parameters:

buffer - a byte array that will be wrapped with ByteBuffer.

ByteBuffer

public ByteBuffer(byte[] buffer,
 int length)

Parameters:

buffer - a byte array that will be wrapped with ByteBuffer.

length - the length of valid bytes in the array

ByteBuffer

public ByteBuffer(InputStream in)
           throws IOException

Loads the stream into a buffer.

Parameters:

in - an InputStream

Throws:

IOException - If the stream cannot be read.

ByteBuffer

public ByteBuffer(byte[] buffer,
 int offset,
 int length)

Parameters:

buffer - a byte array that will be wrapped with ByteBuffer.

offset - the offset of the provided buffer.

length - the length of valid bytes in the array

Method Details

getByteStream

public InputStream getByteStream()

Returns:

Returns a byte stream that is limited to the valid amount of bytes.

length

public int length()

Returns:

Returns the length, that means the number of valid bytes, of the buffer; the inner byte array might be bigger than that.

byteAt

public byte byteAt(int index)

Parameters:

index - the index to retrieve the byte from

Returns:

Returns a byte from the buffer

charAt

public int charAt(int index)

Parameters:

index - the index to retrieve a byte as int or char.

Returns:

Returns a byte from the buffer

append

public void append(byte b)

Appends a byte to the buffer.

Parameters:

b - a byte

append

public void append(byte[] bytes,
 int offset,
 int len)

Appends a byte array or part of to the buffer.

Parameters:

bytes - a byte array

offset - an offset with

len -

append

public void append(byte[] bytes)

Append a byte array to the buffer

Parameters:

bytes - a byte array

append

public void append(ByteBuffer anotherBuffer)

Append another buffer to this buffer.

Parameters:

anotherBuffer - another ByteBuffer

getEncoding

public String getEncoding()

Detects the encoding of the byte buffer, stores and returns it. Only UTF-8, UTF-16LE/BE and UTF-32LE/BE are recognized. Note: UTF-32 flavors are not supported by Java, the XML-parser will complain.

Returns:

Returns the encoding string.