org.apache.http.impl.io
Class AbstractSessionInputBuffer

java.lang.Object
  org.apache.http.impl.io.AbstractSessionInputBuffer

All Implemented Interfaces:

BufferInfo, SessionInputBuffer

Direct Known Subclasses:

SocketInputBuffer

Deprecated. (4.3) use SessionInputBufferImpl

@Deprecated
public abstract class AbstractSessionInputBuffer
extends Object
implements SessionInputBuffer, BufferInfo

Abstract base class for session input buffers that stream data from an arbitrary InputStream. This class buffers input data in an internal byte array for optimal input performance.

readLine(CharArrayBuffer) and readLine() methods of this class treat a lone LF as valid line delimiters in addition to CR-LF required by the HTTP specification.

Since:

4.0

Constructor Summary

AbstractSessionInputBuffer()
Deprecated.

Method Summary

int	available() Deprecated. Returns available space in the buffer.
int	capacity() Deprecated. Returns total capacity of the buffer
protected HttpTransportMetricsImpl	createTransportMetrics() Deprecated.
protected int	fillBuffer() Deprecated.
HttpTransportMetrics	getMetrics() Deprecated. Returns HttpTransportMetrics for this session buffer.
protected boolean	hasBufferedData() Deprecated.
protected void	init(InputStream inputStream, int bufferSize, HttpParams params) Deprecated. Initializes this session input buffer.
int	length() Deprecated. Return length data stored in the buffer
int	read() Deprecated. Reads the next byte of data from this session buffer.
int	read(byte[] b) Deprecated. Reads some number of bytes from the session buffer and stores them into the buffer array b.
int	read(byte[] b, int off, int len) Deprecated. Reads up to len bytes of data from the session buffer into an array of bytes.
String	readLine() Deprecated. Reads a complete line of characters up to a line delimiter from this session buffer.
int	readLine(CharArrayBuffer charbuffer) Deprecated. Reads a complete line of characters up to a line delimiter from this session buffer into the given line buffer.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.http.io.SessionInputBuffer

isDataAvailable

Constructor Detail

AbstractSessionInputBuffer

public AbstractSessionInputBuffer()

Deprecated.

Method Detail

init

protected void init(InputStream inputStream,
                    int bufferSize,
                    HttpParams params)

Deprecated.

Initializes this session input buffer.

Parameters:

inputStream - the source input stream.

bufferSize - the size of the internal buffer.

params - HTTP parameters.

createTransportMetrics

protected HttpTransportMetricsImpl createTransportMetrics()

Deprecated.

Since:

4.1

capacity

public int capacity()

Deprecated.

Description copied from interface: BufferInfo

Returns total capacity of the buffer

Specified by:

capacity in interface BufferInfo

Returns:

total capacity

Since:

4.1

length

public int length()

Deprecated.

Description copied from interface: BufferInfo

Return length data stored in the buffer

Specified by:

length in interface BufferInfo

Returns:

data length

Since:

4.1

available

public int available()

Deprecated.

Description copied from interface: BufferInfo

Returns available space in the buffer.

Specified by:

available in interface BufferInfo

Returns:

available space.

Since:

4.1

fillBuffer

protected int fillBuffer()
                  throws IOException

Deprecated.

Throws:

IOException

hasBufferedData

protected boolean hasBufferedData()

Deprecated.

read

public int read()
         throws IOException

Deprecated.

Description copied from interface: SessionInputBuffer

Reads the next byte of data from this session buffer. The value byte is returned as an int in the range 0 to 255. If no byte is available because the end of the stream has been reached, the value -1 is returned. This method blocks until input data is available, the end of the stream is detected, or an exception is thrown.

Specified by:

read in interface SessionInputBuffer

Returns:

the next byte of data, or -1 if the end of the stream is reached.

Throws:

IOException - if an I/O error occurs.

read

public int read(byte[] b,
                int off,
                int len)
         throws IOException

Deprecated.

Description copied from interface: SessionInputBuffer

Reads up to len bytes of data from the session buffer into an array of bytes. An attempt is made to read as many as len bytes, but a smaller number may be read, possibly zero. The number of bytes actually read is returned as an integer.

This method blocks until input data is available, end of file is detected, or an exception is thrown.

If off is negative, or len is negative, or off+len is greater than the length of the array b, then an IndexOutOfBoundsException is thrown.

Specified by:

read in interface SessionInputBuffer

Parameters:

b - the buffer into which the data is read.

off - the start offset in array b at which the data is written.

len - the maximum number of bytes to read.

Returns:

the total number of bytes read into the buffer, or -1 if there is no more data because the end of the stream has been reached.

Throws:

IOException - if an I/O error occurs.

read

public int read(byte[] b)
         throws IOException

Deprecated.

Description copied from interface: SessionInputBuffer

Reads some number of bytes from the session buffer and stores them into the buffer array b. The number of bytes actually read is returned as an integer. This method blocks until input data is available, end of file is detected, or an exception is thrown.

Specified by:

read in interface SessionInputBuffer

Parameters:

b - the buffer into which the data is read.

Returns:

the total number of bytes read into the buffer, or -1 is there is no more data because the end of the stream has been reached.

Throws:

IOException - if an I/O error occurs.

readLine

public int readLine(CharArrayBuffer charbuffer)
             throws IOException

Deprecated.

Reads a complete line of characters up to a line delimiter from this session buffer into the given line buffer. The number of chars actually read is returned as an integer. The line delimiter itself is discarded. If no char is available because the end of the stream has been reached, the value -1 is returned. This method blocks until input data is available, end of file is detected, or an exception is thrown.

This method treats a lone LF as a valid line delimiters in addition to CR-LF required by the HTTP specification.

Specified by:

readLine in interface SessionInputBuffer

Parameters:

charbuffer - the line buffer.

Returns:

one line of characters

Throws:

IOException - if an I/O error occurs.

readLine

public String readLine()
                throws IOException

Deprecated.

Description copied from interface: SessionInputBuffer

Reads a complete line of characters up to a line delimiter from this session buffer. The line delimiter itself is discarded. If no char is available because the end of the stream has been reached, null is returned. This method blocks until input data is available, end of file is detected, or an exception is thrown.

The choice of a char encoding and line delimiter sequence is up to the specific implementations of this interface.

Specified by:

readLine in interface SessionInputBuffer

Returns:

HTTP line as a string

Throws:

IOException - if an I/O error occurs.

getMetrics

public HttpTransportMetrics getMetrics()

Deprecated.

Description copied from interface: SessionInputBuffer

Returns HttpTransportMetrics for this session buffer.

Specified by:

getMetrics in interface SessionInputBuffer

Returns:

transport metrics.