Module io.helidon.http.http2

Package io.helidon.http.http2

Class Http2FrameHeader

java.lang.Object

io.helidon.http.http2.Http2FrameHeader

public class Http2FrameHeader
extends Object

Frame header. HTTP/2 frame header has a fixed length of 9 bytes.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	LENGTH	Frame header length in bytes.

Method Summary

Modifier and Type	Method	Description
static <T extends Http2Flag> Http2FrameHeader	create(int length, Http2FrameTypes<T> frameType, T flags, int streamIdentifier)	Create a frame header from known values.
static Http2FrameHeader	create(BufferData bytes)	Create a header from header bytes.
int	flags()	Flags as an integer.
<T extends Http2Flag> T	flags(Http2FrameTypes<T> types)	Get typed flags of this frame header.
int	length()	Length of the associated frame data.
int	streamId()	Stream id this header belongs to.
String	toString()
Http2FrameType	type()	Frame type enum.
Http2Flag	typedFlags()	Flags typed correctly based on the type().
BufferData	write()	Write this header as buffer data.

Methods inherited from class java.lang.Object

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

Field Details

LENGTH

public static final int LENGTH

Frame header length in bytes.

See Also:

• Constant Field Values

Method Details

create

public static Http2FrameHeader create(BufferData bytes)

Create a header from header bytes.

Parameters:

bytes - frame header data, contains at least 9 bytes.

Returns:

frame header parsed from the data

create

public static <T extends Http2Flag>
Http2FrameHeader create(int length,
 Http2FrameTypes<T> frameType,
 T flags,
 int streamIdentifier)

Create a frame header from known values.

Type Parameters:

T - type of flags

Parameters:

length - length of the associate frame data

frameType - frame types of this frame

flags - flags of the frame

streamIdentifier - stream this frame belongs to

Returns:

frame header

toString

public String toString()

Overrides:

toString in class Object

flags

public <T extends Http2Flag> T flags(Http2FrameTypes<T> types)

Get typed flags of this frame header.

Type Parameters:

T - type of flags

Parameters:

types - frame types

Returns:

correctly typed flags

type

public Http2FrameType type()

Frame type enum.

Returns:

frame type

length

public int length()

Length of the associated frame data.

Returns:

frame data length

flags

public int flags()

Flags as an integer.

Returns:

flags

streamId

public int streamId()

Stream id this header belongs to.

Returns:

stream id (0 means this is connection related, not stream related)

write

public BufferData write()

Write this header as buffer data.

Returns:

buffer data of this headewr

typedFlags

public Http2Flag typedFlags()

Flags typed correctly based on the type().

Returns:

typed flags

See Also:

• flags(Http2FrameTypes)