okhttp3.internal.http2

Class Http2

java.lang.Object

okhttp3.internal.http2.Http2

public final class Http2
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static java.lang.String[]	BINARY
(package private) static okio.ByteString	CONNECTION_PREFACE
(package private) static byte	FLAG_ACK
(package private) static byte	FLAG_COMPRESSED
(package private) static byte	FLAG_END_HEADERS
(package private) static byte	FLAG_END_PUSH_PROMISE
(package private) static byte	FLAG_END_STREAM
(package private) static byte	FLAG_NONE
(package private) static byte	FLAG_PADDED
(package private) static byte	FLAG_PRIORITY
(package private) static java.lang.String[]	FLAGS Lookup table for valid flags for DATA, HEADERS, CONTINUATION.
private static java.lang.String[]	FRAME_NAMES Lookup table for valid frame types.
(package private) static int	INITIAL_MAX_FRAME_SIZE The initial max frame size, applied independently writing to, or reading from the peer.
(package private) static byte	TYPE_CONTINUATION
(package private) static byte	TYPE_DATA
(package private) static byte	TYPE_GOAWAY
(package private) static byte	TYPE_HEADERS
(package private) static byte	TYPE_PING
(package private) static byte	TYPE_PRIORITY
(package private) static byte	TYPE_PUSH_PROMISE
(package private) static byte	TYPE_RST_STREAM
(package private) static byte	TYPE_SETTINGS
(package private) static byte	TYPE_WINDOW_UPDATE

Constructor Summary

Constructors

Modifier	Constructor and Description
private	Http2()

Method Summary

Modifier and Type	Method and Description
(package private) static java.lang.String	formatFlags(byte type, byte flags) Looks up valid string representing flags from the table.
(package private) static java.lang.String	frameLog(boolean inbound, int streamId, int length, byte type, byte flags) Returns human-readable representation of HTTP/2 frame headers.
(package private) static java.lang.IllegalArgumentException	illegalArgument(java.lang.String message, java.lang.Object... args)
(package private) static java.io.IOException	ioException(java.lang.String message, java.lang.Object... args)

Methods inherited from class java.lang.Object

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

Field Detail

CONNECTION_PREFACE

static final okio.ByteString CONNECTION_PREFACE

INITIAL_MAX_FRAME_SIZE

static final int INITIAL_MAX_FRAME_SIZE

The initial max frame size, applied independently writing to, or reading from the peer.

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Constant Field Values

TYPE_DATA

static final byte TYPE_DATA

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Constant Field Values

TYPE_HEADERS

static final byte TYPE_HEADERS

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Constant Field Values

TYPE_PRIORITY

static final byte TYPE_PRIORITY

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Constant Field Values

TYPE_RST_STREAM

static final byte TYPE_RST_STREAM

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Constant Field Values

TYPE_SETTINGS

static final byte TYPE_SETTINGS

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Constant Field Values

TYPE_PUSH_PROMISE

static final byte TYPE_PUSH_PROMISE

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Constant Field Values

TYPE_PING

static final byte TYPE_PING

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Constant Field Values

TYPE_GOAWAY

static final byte TYPE_GOAWAY

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Constant Field Values

TYPE_WINDOW_UPDATE

static final byte TYPE_WINDOW_UPDATE

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Constant Field Values

TYPE_CONTINUATION

static final byte TYPE_CONTINUATION

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Constant Field Values

FLAG_NONE

static final byte FLAG_NONE

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Constant Field Values

FLAG_ACK

static final byte FLAG_ACK

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Constant Field Values

FLAG_END_STREAM

static final byte FLAG_END_STREAM

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Constant Field Values

FLAG_END_HEADERS

static final byte FLAG_END_HEADERS

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Constant Field Values

FLAG_END_PUSH_PROMISE

static final byte FLAG_END_PUSH_PROMISE

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Constant Field Values

FLAG_PADDED

static final byte FLAG_PADDED

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Constant Field Values

FLAG_PRIORITY

static final byte FLAG_PRIORITY

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Constant Field Values

FLAG_COMPRESSED

static final byte FLAG_COMPRESSED

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Constant Field Values

FRAME_NAMES

private static final java.lang.String[] FRAME_NAMES

Lookup table for valid frame types.

FLAGS

static final java.lang.String[] FLAGS

Lookup table for valid flags for DATA, HEADERS, CONTINUATION. Invalid combinations are represented in binary.

BINARY

static final java.lang.String[] BINARY

Constructor Detail

Http2

private Http2()

Method Detail

illegalArgument

static java.lang.IllegalArgumentException illegalArgument(java.lang.String message,
                                                          java.lang.Object... args)

ioException

static java.io.IOException ioException(java.lang.String message,
                                       java.lang.Object... args)
                                throws java.io.IOException

Throws:

java.io.IOException

frameLog

static java.lang.String frameLog(boolean inbound,
                                 int streamId,
                                 int length,
                                 byte type,
                                 byte flags)

Returns human-readable representation of HTTP/2 frame headers.

The format is:

   direction streamID length type flags
 

Where direction is << for inbound and >> for outbound.

For example, the following would indicate a HEAD request sent from the client.

 
   << 0x0000000f    12 HEADERS       END_HEADERS|END_STREAM
 
 

formatFlags

static java.lang.String formatFlags(byte type,
                                    byte flags)

Looks up valid string representing flags from the table. Invalid combinations are represented in binary.