Package org.apache.hc.core5.http.impl.nio

Class AbstractMessageParser<T extends HttpMessage>

java.lang.Object

org.apache.hc.core5.http.impl.nio.AbstractMessageParser<T>

All Implemented Interfaces:

NHttpMessageParser<T>

Direct Known Subclasses:

DefaultHttpRequestParser, DefaultHttpResponseParser

public abstract class AbstractMessageParser<T extends HttpMessage>
extends java.lang.Object
implements NHttpMessageParser<T>

Abstract NHttpMessageParser that serves as a base for all message parser implementations.

Since:

4.0

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	AbstractMessageParser.State

Field Summary

Fields

Modifier and Type	Field	Description
private int	emptyLineCount
private java.util.List<CharArrayBuffer>	headerBufs
private CharArrayBuffer	lineBuf
private LineParser	lineParser
private T	message
private Http1Config	messageConstraints
private AbstractMessageParser.State	state

Constructor Summary

Constructors

Constructor	Description
AbstractMessageParser(LineParser lineParser, Http1Config messageConstraints)	Creates an instance of AbstractMessageParser.

Method Summary

Modifier and Type	Method	Description
protected abstract T	createMessage(CharArrayBuffer buffer)	Creates HttpMessage instance based on the content of the input buffer containing the first line of the incoming HTTP message.
(package private) LineParser	getLineParser()
T	parse(SessionInputBuffer sessionBuffer, boolean endOfStream)	Attempts to parse a complete message head from the content of the internal buffer.
private void	parseHeader()
private T	parseHeadLine()
void	reset()	Resets the parser.

Methods inherited from class java.lang.Object

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

Field Detail

state

private AbstractMessageParser.State state

message

private T extends HttpMessage message

lineBuf

private CharArrayBuffer lineBuf

headerBufs

private final java.util.List<CharArrayBuffer> headerBufs

emptyLineCount

private int emptyLineCount

lineParser

private final LineParser lineParser

messageConstraints

private final Http1Config messageConstraints

Constructor Detail

AbstractMessageParser

public AbstractMessageParser(LineParser lineParser,
                             Http1Config messageConstraints)

Creates an instance of AbstractMessageParser.

Parameters:

lineParser - the line parser. If null LazyLineParser.INSTANCE will be used.

messageConstraints - Message constraints. If null Http1Config.DEFAULT will be used.

Since:

4.3

Method Detail

getLineParser

LineParser getLineParser()

reset

public void reset()

Description copied from interface: NHttpMessageParser

Resets the parser. The parser will be ready to start parsing another HTTP message.

Specified by:

reset in interface NHttpMessageParser<T extends HttpMessage>

createMessage

protected abstract T createMessage(CharArrayBuffer buffer)
                            throws HttpException

Creates HttpMessage instance based on the content of the input buffer containing the first line of the incoming HTTP message.

Parameters:

buffer - the line buffer.

Returns:

HTTP message.

Throws:

HttpException - in case of HTTP protocol violation

parseHeadLine

private T parseHeadLine()
                 throws java.io.IOException,
                        HttpException

Throws:

java.io.IOException

HttpException

parseHeader

private void parseHeader()
                  throws java.io.IOException

Throws:

java.io.IOException

parse

public T parse(SessionInputBuffer sessionBuffer,
               boolean endOfStream)
        throws java.io.IOException,
               HttpException

Description copied from interface: NHttpMessageParser

Attempts to parse a complete message head from the content of the internal buffer. If the message in the input buffer is incomplete this method will return null.

Specified by:

parse in interface NHttpMessageParser<T extends HttpMessage>

Parameters:

sessionBuffer - session input buffer.

endOfStream - end of stream flag

Returns:

HTTP message head, if available, null otherwise.

Throws:

java.io.IOException - in case of an I/O error.

HttpException - in case the HTTP message is malformed or violates the HTTP protocol.