public class InByteBuffer extends java.lang.Object implements IInByteBuffer
Modifier and Type | Field and Description |
---|---|
static int |
DEFAULT_BUFFER_SIZE
Default input buffer size.
|
private byte[] |
m_buffer
Buffer for input bytes.
|
private boolean |
m_isEnd
Flag for end of stream reached.
|
private int |
m_limit
Offset past end of bytes in buffer.
|
private int |
m_offset
Current offset for removing bytes from buffer.
|
private java.io.InputStream |
m_stream
Stream for byte input.
|
Constructor and Description |
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InByteBuffer()
Constructor using default buffer size.
|
InByteBuffer(int size)
Constructor with size specified.
|
Modifier and Type | Method and Description |
---|---|
private boolean |
fillBuffer(int size)
Read data into the buffer to assure at least a minimum number of bytes
are available.
|
void |
finish()
Complete usage of the current stream.
|
byte[] |
getBuffer()
Get the byte array buffer.
|
int |
getLimit()
Get offset past the end of data in buffer.
|
int |
getOffset()
Get the index of the next byte to be read.
|
boolean |
require(int size)
Require some number of bytes of data.
|
void |
reset()
Reset to initial state for reuse.
|
void |
setInput(java.io.InputStream is)
Set the actual input stream to be used for this buffer.
|
void |
setOffset(int offset)
Set the current offset.
|
public static final int DEFAULT_BUFFER_SIZE
private java.io.InputStream m_stream
private boolean m_isEnd
private byte[] m_buffer
private int m_limit
private int m_offset
public InByteBuffer(int size)
size
- initial buffer size in bytespublic InByteBuffer()
private boolean fillBuffer(int size) throws java.io.IOException
size
- minimum number of bytes requiredtrue
if data has been read into buffer,
false
if notjava.io.IOException
- on error reading from wrapped streampublic void reset()
public void setInput(java.io.InputStream is)
is
- streampublic byte[] getBuffer()
getBuffer
in interface IByteBuffer
public int getOffset()
setOffset(int)
method must be used to update the current offset before
any other operations are performed on the buffer.getOffset
in interface IByteBuffer
public void setOffset(int offset)
setOffset
in interface IByteBuffer
offset
- public int getLimit()
getLimit
in interface IInByteBuffer
public boolean require(int size) throws java.io.IOException
getBuffer()
, getLimit()
, and getOffset()
must
all be called again before any further use of the buffer.require
in interface IInByteBuffer
size
- desired number of bytestrue
if request satisfied, false
if notjava.io.IOException
public void finish() throws java.io.IOException
setInput(InputStream)
is
required before the buffer can again be used.finish
in interface IByteBuffer
java.io.IOException