reactor.netty.http

Enum HttpProtocol

java.lang.Object

java.lang.Enum<HttpProtocol>

reactor.netty.http.HttpProtocol

All Implemented Interfaces:

Serializable, Comparable<HttpProtocol>

public enum HttpProtocol
extends Enum<HttpProtocol>

An enum defining various HTTP negotiations between H2, H2C-upgrade, H2C-prior-knowledge and HTTP/1.1.

Author:

Stephane Maldini

Enum Constant Summary

Enum Constants

Enum Constant and Description
H2 HTTP/2.0 support with TLS
H2C HTTP/2.0 support with clear-text.
HTTP11 The default supported HTTP protocol by HttpServer and HttpClient.
HTTP3 HTTP/3.0 support.

Method Summary

Modifier and Type	Method and Description
static HttpProtocol	valueOf(String name) Returns the enum constant of this type with the specified name.
static HttpProtocol[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

HTTP11

public static final HttpProtocol HTTP11

The default supported HTTP protocol by HttpServer and HttpClient.

H2

public static final HttpProtocol H2

HTTP/2.0 support with TLS

If used along with HTTP/1.1 protocol, HTTP/2.0 will be the preferred protocol. While negotiating the application level protocol, HTTP/2.0 or HTTP/1.1 can be chosen.

If used without HTTP/1.1 protocol, HTTP/2.0 will always be offered as a protocol for communication with no fallback to HTTP/1.1.

H2C

public static final HttpProtocol H2C

HTTP/2.0 support with clear-text.

If used along with HTTP/1.1 protocol, will support H2C "upgrade": Request or consume requests as HTTP/1.1 first, looking for HTTP/2.0 headers and Connection: Upgrade. A server will typically reply a successful 101 status if upgrade is successful or a fallback HTTP/1.1 response. When successful the client will start sending HTTP/2.0 traffic.

If used without HTTP/1.1 protocol, will support H2C "prior-knowledge": Doesn't require Connection: Upgrade handshake between a client and server but fallback to HTTP/1.1 will not be supported.

HTTP3

@Incubating
public static final HttpProtocol HTTP3

HTTP/3.0 support.

Since:

1.2.0

Method Detail

values

public static HttpProtocol[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (HttpProtocol c : HttpProtocol.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static HttpProtocol valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null