org.apache.coyote.http11
Class InternalInputBuffer

java.lang.Object
  org.apache.coyote.http11.AbstractInputBuffer
      org.apache.coyote.http11.InternalInputBuffer

All Implemented Interfaces:

InputBuffer

public class InternalInputBuffer
extends AbstractInputBuffer

Implementation of InputBuffer which provides HTTP request header parsing as well as transfer decoding.

Author:

Remy Maucherat

request

protected Request request

Associated Coyote request.

headers

protected MimeHeaders headers

Headers of the associated request.

parsingHeader

protected boolean parsingHeader

State.

swallowInput

protected boolean swallowInput

Swallow input ? (in the case of an expectation)

buf

protected byte[] buf

Pointer to the current read buffer.

lastValid

protected int lastValid

Last valid byte.

pos

protected int pos

Position in the buffer.

end

protected int end

Pos of the end of the header in the buffer, which is also the start of the body.

inputStream

protected java.io.InputStream inputStream

Underlying input stream.

inputStreamInputBuffer

protected InputBuffer inputStreamInputBuffer

Underlying input buffer.

filterLibrary

protected InputFilter[] filterLibrary

Filter library. Note: Filter[0] is always the "chunked" filter.

activeFilters

protected InputFilter[] activeFilters

Active filters (in order).

lastActiveFilter

protected int lastActiveFilter

Index of the last active filter.

InternalInputBuffer

public InternalInputBuffer(Request request)

Default constructor.

InternalInputBuffer

public InternalInputBuffer(Request request,
                           int headerBufferSize)

Alternate constructor.

setInputStream

public void setInputStream(java.io.InputStream inputStream)

Set the underlying socket input stream.

getInputStream

public java.io.InputStream getInputStream()

Get the underlying socket input stream.

addFilter

public void addFilter(InputFilter filter)

Add an input filter to the filter library.

getFilters

public InputFilter[] getFilters()

Get filters.

clearFilters

public void clearFilters()

Clear filters.

addActiveFilter

public void addActiveFilter(InputFilter filter)

Add an input filter to the filter library.

setSwallowInput

public void setSwallowInput(boolean swallowInput)

Set the swallow input flag.

recycle

public void recycle()

Recycle the input buffer. This should be called when closing the connection.

nextRequest

public void nextRequest()

End processing of current HTTP request. Note: All bytes of the current request should have been already consumed. This method only resets all the pointers so that we are ready to parse the next HTTP request.

endRequest

public void endRequest()
                throws java.io.IOException

End request (consumes leftover bytes).

Throws:

java.io.IOException - an undelying I/O error occured

parseRequestLine

public void parseRequestLine()
                      throws java.io.IOException

Read the request line. This function is meant to be used during the HTTP request header parsing. Do NOT attempt to read the request body using it.

Throws:

java.io.IOException - If an exception occurs during the underlying socket read operations, or if the given buffer is not big enough to accomodate the whole line.

parseHeaders

public void parseHeaders()
                  throws java.io.IOException

Parse the HTTP headers.

Throws:

java.io.IOException

parseHeader

public boolean parseHeader()
                    throws java.io.IOException

Parse an HTTP header.

Returns:

false after reading a blank line (which indicates that the HTTP header parsing is done

Throws:

java.io.IOException

doRead

public int doRead(ByteChunk chunk,
                  Request req)
           throws java.io.IOException

Read some bytes.

Throws:

java.io.IOException

fill

protected boolean fill()
                throws java.io.IOException

Fill the internal buffer using data from the undelying input stream.

Returns:

false if at end of stream

Throws:

java.io.IOException