| org.apache.http.message.LineParser |
 Known Indirect Subclasses
| BasicLineParser |
Basic parser for lines in the head section of an HTTP message. |
|
Class Overview
Interface for parsing lines in the HEAD section of an HTTP message.
There are individual methods for parsing a request line, a
status line, or a header line.
The lines to parse are passed in memory, the parser does not depend
on any specific IO mechanism.
Instances of this interface are expected to be stateless and thread-safe.
Public Methods
public
abstract
boolean
hasProtocolVersion
(CharArrayBuffer buffer, ParserCursor cursor)
Checks whether there likely is a protocol version in a line.
This method implements a heuristic to check for a
likely protocol version specification. It does not
guarantee that parseProtocolVersion(CharArrayBuffer, ParserCursor) would not
detect a parse error.
This can be used to detect garbage lines before a request
or status line.
Parameters
| buffer
| a buffer holding the line to inspect |
| cursor
| the cursor at which to check for a protocol version, or
negative for "end of line". Whether the check tolerates
whitespace before or after the protocol version is
implementation dependent. |
Returns
true if there is a protocol version at the
argument index (possibly ignoring whitespace),
false otherwise
Creates a header from a line.
The full header line is expected here. Header continuation lines
must be joined by the caller before invoking this method.
Parameters
| buffer
| a buffer holding the full header line.
This buffer MUST NOT be re-used afterwards, since
the returned object may reference the contents later. |
Returns
- the header in the argument buffer.
The returned object MAY be a wrapper for the argument buffer.
The argument buffer MUST NOT be re-used or changed afterwards.
Parses the textual representation of a protocol version.
This is needed for parsing request lines (last element)
as well as status lines (first element).
Parameters
| buffer
| a buffer holding the protocol version to parse |
| cursor
| the parser cursor containing the current position and
the bounds within the buffer for the parsing operation |
Returns
- the parsed protocol version
Parameters
| buffer
| a buffer holding the line to parse |
| cursor
| the parser cursor containing the current position and
the bounds within the buffer for the parsing operation |
Parameters
| buffer
| a buffer holding the line to parse |
| cursor
| the parser cursor containing the current position and
the bounds within the buffer for the parsing operation |
