io.vertx.mqtt

Class MqttServerOptions

java.lang.Object

io.vertx.core.net.NetworkOptions

io.vertx.core.net.TCPSSLOptions

io.vertx.core.net.NetServerOptions

io.vertx.mqtt.MqttServerOptions

public class MqttServerOptions
extends NetServerOptions

Represents options used by the MQTT server

Field Summary

Fields

Modifier and Type	Field and Description
static boolean	DEFAULT_AUTO_CLIENT_ID
static int	DEFAULT_MAX_CLIENT_ID_LENGTH
static int	DEFAULT_MAX_MESSAGE_SIZE
static boolean	DEFAULT_PER_FRAME_WEBSOCKET_COMPRESSION_SUPPORTED
static boolean	DEFAULT_PER_MESSAGE_WEBSOCKET_COMPRESSION_SUPPORTED
static int	DEFAULT_PORT
static int	DEFAULT_TIMEOUT_ON_CONNECT
static int	DEFAULT_TLS_PORT
static boolean	DEFAULT_USE_WEB_SOCKET
static int	DEFAULT_WEB_SOCKET_MAX_FRAME_SIZE
static boolean	DEFAULT_WEBSOCKET_ALLOW_SERVER_NO_CONTEXT
static int	DEFAULT_WEBSOCKET_COMPRESSION_LEVEL
static boolean	DEFAULT_WEBSOCKET_PREFERRED_CLIENT_NO_CONTEXT
static String	MQTT_SUBPROTOCOL_CSV_LIST

Fields inherited from class io.vertx.core.net.NetServerOptions

DEFAULT_ACCEPT_BACKLOG, DEFAULT_CLIENT_AUTH, DEFAULT_HOST, DEFAULT_PROXY_PROTOCOL_TIMEOUT, DEFAULT_PROXY_PROTOCOL_TIMEOUT_TIME_UNIT, DEFAULT_REGISTER_WRITE_HANDLER, DEFAULT_SNI, DEFAULT_USE_PROXY_PROTOCOL

Fields inherited from class io.vertx.core.net.TCPSSLOptions

DEFAULT_ENABLED_SECURE_TRANSPORT_PROTOCOLS, DEFAULT_IDLE_TIMEOUT, DEFAULT_IDLE_TIMEOUT_TIME_UNIT, DEFAULT_READ_IDLE_TIMEOUT, DEFAULT_SO_LINGER, DEFAULT_SSL, DEFAULT_SSL_ENGINE, DEFAULT_SSL_HANDSHAKE_TIMEOUT, DEFAULT_SSL_HANDSHAKE_TIMEOUT_TIME_UNIT, DEFAULT_TCP_CORK, DEFAULT_TCP_FAST_OPEN, DEFAULT_TCP_KEEAPLIVE_INTERVAL_SECONDS, DEFAULT_TCP_KEEP_ALIVE, DEFAULT_TCP_KEEPALIVE_COUNT, DEFAULT_TCP_KEEPALIVE_IDLE_SECONDS, DEFAULT_TCP_NO_DELAY, DEFAULT_TCP_QUICKACK, DEFAULT_TCP_USER_TIMEOUT, DEFAULT_USE_ALPN, DEFAULT_WRITE_IDLE_TIMEOUT

Fields inherited from class io.vertx.core.net.NetworkOptions

DEFAULT_LOG_ACTIVITY_FORMAT, DEFAULT_LOG_ENABLED, DEFAULT_RECEIVE_BUFFER_SIZE, DEFAULT_REUSE_ADDRESS, DEFAULT_REUSE_PORT, DEFAULT_SEND_BUFFER_SIZE, DEFAULT_TRAFFIC_CLASS

Constructor Summary

Constructors

Constructor and Description
MqttServerOptions() Default constructor
MqttServerOptions(JsonObject json) Create an options from JSON
MqttServerOptions(MqttServerOptions other) Copy constructor

Method Summary

Modifier and Type	Method and Description
MqttServerOptions	addCrlPath(String crlPath) Add a CRL path
MqttServerOptions	addCrlValue(Buffer crlValue) Add a CRL value
MqttServerOptions	addEnabledCipherSuite(String suite) Add an enabled cipher suite, appended to the ordered suites.
MqttServerOptions	addEnabledSecureTransportProtocol(String protocol) Add an enabled SSL/TLS protocols, appended to the ordered protocols.
int	getMaxClientIdLength()
int	getMaxMessageSize()
long	getProxyProtocolTimeout()
TimeUnit	getProxyProtocolTimeoutUnit()
int	getWebSocketCompressionLevel()
int	getWebSocketMaxFrameSize()
boolean	isAutoClientId()
boolean	isPerFrameWebSocketCompressionSupported() Get whether WebSocket the per-frame deflate compression extension is supported.
boolean	isPerMessageWebSocketCompressionSupported() Get whether WebSocket the per-frame deflate compression extension is supported.
boolean	isUseProxyProtocol()
boolean	isUseWebSocket()
boolean	isWebSocketAllowServerNoContext()
boolean	isWebSocketPreferredClientNoContext()
MqttServerOptions	setAutoClientId(boolean isAutoClientId) Set if clientid should be auto-generated when it's "zero-bytes"
MqttServerOptions	setClientAuth(ClientAuth clientAuth) Set whether client auth is required
MqttServerOptions	setHost(String host) Set the host
MqttServerOptions	setKeyCertOptions(KeyCertOptions options) Set the key/cert options.
MqttServerOptions	setKeyStoreOptions(JksOptions options) Set the key/cert options in jks format, aka Java keystore.
MqttServerOptions	setMaxClientIdLength(int maxClientIdLength) Set the max client id length.
MqttServerOptions	setMaxMessageSize(int maxMessageSize) Set max MQTT message size
MqttServerOptions	setPemKeyCertOptions(PemKeyCertOptions options) Set the key/cert store options in pem format.
MqttServerOptions	setPemTrustOptions(PemTrustOptions options) Set the trust options in pem format
MqttServerOptions	setPerFrameWebSocketCompressionSupported(boolean supported) Enable or disable support for the WebSocket per-frame deflate compression extension.
MqttServerOptions	setPerMessageWebSocketCompressionSupported(boolean supported) Enable or disable support for WebSocket per-message deflate compression extension.
MqttServerOptions	setPfxKeyCertOptions(PfxOptions options) Set the key/cert options in pfx format.
MqttServerOptions	setPfxTrustOptions(PfxOptions options) Set the trust options in pfx format
MqttServerOptions	setPort(int port) Set the port
MqttServerOptions	setProxyProtocolTimeout(long proxyProtocolTimeout) Set the Proxy protocol timeout, default time unit is seconds.
MqttServerOptions	setProxyProtocolTimeoutUnit(TimeUnit proxyProtocolTimeoutUnit) Set the Proxy protocol timeout unit.
MqttServerOptions	setReceiveBufferSize(int receiveBufferSize) Set the TCP receive buffer size
MqttServerOptions	setSni(boolean sni) Set whether the server supports Server Name Indiciation
MqttServerOptions	setSsl(boolean ssl) Set whether SSL/TLS is enabled
MqttServerOptions	setTimeoutOnConnect(int timeoutOnConnect) Set the timeout on CONNECT packet
MqttServerOptions	setTrustOptions(TrustOptions options) Set the trust options.
MqttServerOptions	setTrustStoreOptions(JksOptions options) Set the trust options in jks format, aka Java truststore
MqttServerOptions	setUseProxyProtocol(boolean useProxyProtocol) Set whether the server uses the HA Proxy protocol
MqttServerOptions	setUseWebSocket(boolean useWebSocket) enable mqtt over websocket
MqttServerOptions	setWebSocketAllowServerNoContext(boolean accept) Set whether the WebSocket server will accept the server_no_context_takeover parameter of the per-message deflate compression extension offered by the client.
MqttServerOptions	setWebSocketCompressionLevel(int compressionLevel) Set the WebSocket compression level.
void	setWebSocketMaxFrameSize(int webSocketMaxFrameSize) Set the WebSocket max frame size.
MqttServerOptions	setWebSocketPreferredClientNoContext(boolean accept) Set whether the WebSocket server will accept the client_no_context_takeover parameter of the per-message deflate compression extension offered by the client.
int	timeoutOnConnect()
JsonObject	toJson() Convert to JSON

Methods inherited from class io.vertx.core.net.NetServerOptions

getAcceptBacklog, getClientAuth, getHost, getPort, getTrafficShapingOptions, isRegisterWriteHandler, isSni, removeEnabledCipherSuite, removeEnabledSecureTransportProtocol, setAcceptBacklog, setActivityLogDataFormat, setEnabledSecureTransportProtocols, setIdleTimeout, setIdleTimeoutUnit, setJdkSslEngineOptions, setLogActivity, setOpenSslEngineOptions, setReadIdleTimeout, setRegisterWriteHandler, setReuseAddress, setReusePort, setSendBufferSize, setSoLinger, setSslEngineOptions, setSslHandshakeTimeout, setSslHandshakeTimeoutUnit, setTcpCork, setTcpFastOpen, setTcpKeepAlive, setTcpNoDelay, setTcpQuickAck, setTrafficClass, setTrafficShapingOptions, setUseAlpn, setWriteIdleTimeout

Methods inherited from class io.vertx.core.net.TCPSSLOptions

getCrlPaths, getCrlValues, getEnabledCipherSuites, getEnabledSecureTransportProtocols, getIdleTimeout, getIdleTimeoutUnit, getJdkSslEngineOptions, getKeyCertOptions, getKeyStoreOptions, getOpenSslEngineOptions, getPemKeyCertOptions, getPemTrustOptions, getPfxKeyCertOptions, getPfxTrustOptions, getReadIdleTimeout, getSoLinger, getSslEngineOptions, getSslHandshakeTimeout, getSslHandshakeTimeoutUnit, getSslOptions, getTcpKeepAliveCount, getTcpKeepAliveIdleSeconds, getTcpKeepAliveIntervalSeconds, getTcpUserTimeout, getTrustOptions, getTrustStoreOptions, getWriteIdleTimeout, isSsl, isTcpCork, isTcpFastOpen, isTcpKeepAlive, isTcpNoDelay, isTcpQuickAck, isUseAlpn, setTcpKeepAliveCount, setTcpKeepAliveIdleSeconds, setTcpKeepAliveIntervalSeconds, setTcpUserTimeout

Methods inherited from class io.vertx.core.net.NetworkOptions

getActivityLogDataFormat, getLogActivity, getReceiveBufferSize, getSendBufferSize, getTrafficClass, isReuseAddress, isReusePort

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_PORT

public static final int DEFAULT_PORT

See Also:

Constant Field Values

DEFAULT_TLS_PORT

public static final int DEFAULT_TLS_PORT

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Constant Field Values

DEFAULT_MAX_MESSAGE_SIZE

public static final int DEFAULT_MAX_MESSAGE_SIZE

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Constant Field Values

DEFAULT_AUTO_CLIENT_ID

public static final boolean DEFAULT_AUTO_CLIENT_ID

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Constant Field Values

DEFAULT_MAX_CLIENT_ID_LENGTH

public static final int DEFAULT_MAX_CLIENT_ID_LENGTH

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Constant Field Values

DEFAULT_TIMEOUT_ON_CONNECT

public static final int DEFAULT_TIMEOUT_ON_CONNECT

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Constant Field Values

DEFAULT_USE_WEB_SOCKET

public static final boolean DEFAULT_USE_WEB_SOCKET

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Constant Field Values

DEFAULT_WEB_SOCKET_MAX_FRAME_SIZE

public static final int DEFAULT_WEB_SOCKET_MAX_FRAME_SIZE

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Constant Field Values

DEFAULT_PER_FRAME_WEBSOCKET_COMPRESSION_SUPPORTED

public static final boolean DEFAULT_PER_FRAME_WEBSOCKET_COMPRESSION_SUPPORTED

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Constant Field Values

DEFAULT_PER_MESSAGE_WEBSOCKET_COMPRESSION_SUPPORTED

public static final boolean DEFAULT_PER_MESSAGE_WEBSOCKET_COMPRESSION_SUPPORTED

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Constant Field Values

DEFAULT_WEBSOCKET_COMPRESSION_LEVEL

public static final int DEFAULT_WEBSOCKET_COMPRESSION_LEVEL

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Constant Field Values

DEFAULT_WEBSOCKET_ALLOW_SERVER_NO_CONTEXT

public static final boolean DEFAULT_WEBSOCKET_ALLOW_SERVER_NO_CONTEXT

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Constant Field Values

DEFAULT_WEBSOCKET_PREFERRED_CLIENT_NO_CONTEXT

public static final boolean DEFAULT_WEBSOCKET_PREFERRED_CLIENT_NO_CONTEXT

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Constant Field Values

MQTT_SUBPROTOCOL_CSV_LIST

public static final String MQTT_SUBPROTOCOL_CSV_LIST

See Also:

Constant Field Values

Constructor Detail

MqttServerOptions

public MqttServerOptions()

Default constructor

MqttServerOptions

public MqttServerOptions(JsonObject json)

Create an options from JSON

Parameters:

json - the JSON

MqttServerOptions

public MqttServerOptions(MqttServerOptions other)

Copy constructor

Parameters:

other - the options to copy

Method Detail

setPort

public MqttServerOptions setPort(int port)

Description copied from class: NetServerOptions

Set the port

Overrides:

setPort in class NetServerOptions

Parameters:

port - the port

Returns:

a reference to this, so the API can be used fluently

setHost

public MqttServerOptions setHost(String host)

Description copied from class: NetServerOptions

Set the host

Overrides:

setHost in class NetServerOptions

Parameters:

host - the host

Returns:

a reference to this, so the API can be used fluently

setClientAuth

public MqttServerOptions setClientAuth(ClientAuth clientAuth)

Description copied from class: NetServerOptions

Set whether client auth is required

Overrides:

setClientAuth in class NetServerOptions

Parameters:

clientAuth - One of "NONE, REQUEST, REQUIRED". If it's set to "REQUIRED" then server will require the SSL cert to be presented otherwise it won't accept the request. If it's set to "REQUEST" then it won't mandate the certificate to be presented, basically make it optional.

Returns:

a reference to this, so the API can be used fluently

setSsl

public MqttServerOptions setSsl(boolean ssl)

Description copied from class: TCPSSLOptions

Set whether SSL/TLS is enabled

Overrides:

setSsl in class NetServerOptions

Parameters:

ssl - true if enabled

Returns:

a reference to this, so the API can be used fluently

setKeyCertOptions

public MqttServerOptions setKeyCertOptions(KeyCertOptions options)

Description copied from class: TCPSSLOptions

Set the key/cert options.

Overrides:

setKeyCertOptions in class NetServerOptions

Parameters:

options - the key store options

Returns:

a reference to this, so the API can be used fluently

setKeyStoreOptions

public MqttServerOptions setKeyStoreOptions(JksOptions options)

Description copied from class: TCPSSLOptions

Set the key/cert options in jks format, aka Java keystore.

Overrides:

setKeyStoreOptions in class NetServerOptions

Parameters:

options - the key store in jks format

Returns:

a reference to this, so the API can be used fluently

setPfxKeyCertOptions

public MqttServerOptions setPfxKeyCertOptions(PfxOptions options)

Description copied from class: TCPSSLOptions

Set the key/cert options in pfx format.

Overrides:

setPfxKeyCertOptions in class NetServerOptions

Parameters:

options - the key cert options in pfx format

Returns:

a reference to this, so the API can be used fluently

setPemKeyCertOptions

public MqttServerOptions setPemKeyCertOptions(PemKeyCertOptions options)

Description copied from class: TCPSSLOptions

Set the key/cert store options in pem format.

Overrides:

setPemKeyCertOptions in class NetServerOptions

Parameters:

options - the options in pem format

Returns:

a reference to this, so the API can be used fluently

setTrustOptions

public MqttServerOptions setTrustOptions(TrustOptions options)

Description copied from class: TCPSSLOptions

Set the trust options.

Overrides:

setTrustOptions in class NetServerOptions

Parameters:

options - the trust options

Returns:

a reference to this, so the API can be used fluently

setTrustStoreOptions

public MqttServerOptions setTrustStoreOptions(JksOptions options)

Description copied from class: TCPSSLOptions

Set the trust options in jks format, aka Java truststore

Overrides:

setTrustStoreOptions in class NetServerOptions

Parameters:

options - the trust options in jks format

Returns:

a reference to this, so the API can be used fluently

setPemTrustOptions

public MqttServerOptions setPemTrustOptions(PemTrustOptions options)

Description copied from class: TCPSSLOptions

Set the trust options in pem format

Overrides:

setPemTrustOptions in class NetServerOptions

Parameters:

options - the trust options in pem format

Returns:

a reference to this, so the API can be used fluently

setPfxTrustOptions

public MqttServerOptions setPfxTrustOptions(PfxOptions options)

Description copied from class: TCPSSLOptions

Set the trust options in pfx format

Overrides:

setPfxTrustOptions in class NetServerOptions

Parameters:

options - the trust options in pfx format

Returns:

a reference to this, so the API can be used fluently

addEnabledCipherSuite

public MqttServerOptions addEnabledCipherSuite(String suite)

Description copied from class: TCPSSLOptions

Add an enabled cipher suite, appended to the ordered suites.

Overrides:

addEnabledCipherSuite in class NetServerOptions

Parameters:

suite - the suite

Returns:

a reference to this, so the API can be used fluently

See Also:

TCPSSLOptions.getEnabledCipherSuites()

addEnabledSecureTransportProtocol

public MqttServerOptions addEnabledSecureTransportProtocol(String protocol)

Description copied from class: TCPSSLOptions

Add an enabled SSL/TLS protocols, appended to the ordered protocols.

Overrides:

addEnabledSecureTransportProtocol in class NetServerOptions

Parameters:

protocol - the SSL/TLS protocol to enable

Returns:

a reference to this, so the API can be used fluently

addCrlPath

public MqttServerOptions addCrlPath(String crlPath)
                             throws NullPointerException

Description copied from class: TCPSSLOptions

Add a CRL path

Overrides:

addCrlPath in class NetServerOptions

Parameters:

crlPath - the path

Returns:

a reference to this, so the API can be used fluently

Throws:

NullPointerException

addCrlValue

public MqttServerOptions addCrlValue(Buffer crlValue)
                              throws NullPointerException

Description copied from class: TCPSSLOptions

Add a CRL value

Overrides:

addCrlValue in class NetServerOptions

Parameters:

crlValue - the value

Returns:

a reference to this, so the API can be used fluently

Throws:

NullPointerException

setReceiveBufferSize

public MqttServerOptions setReceiveBufferSize(int receiveBufferSize)

Description copied from class: NetworkOptions

Set the TCP receive buffer size

Overrides:

setReceiveBufferSize in class NetServerOptions

Parameters:

receiveBufferSize - the buffers size, in bytes

Returns:

a reference to this, so the API can be used fluently

setSni

public MqttServerOptions setSni(boolean sni)

Description copied from class: NetServerOptions

Set whether the server supports Server Name Indiciation

Overrides:

setSni in class NetServerOptions

Returns:

a reference to this, so the API can be used fluently

setMaxMessageSize

public MqttServerOptions setMaxMessageSize(int maxMessageSize)

Set max MQTT message size

Parameters:

maxMessageSize - max MQTT message size (variable header + payload)

Returns:

MQTT server options instance

getMaxMessageSize

public int getMaxMessageSize()

Returns:

max MQTT message size (variable header + payload)

setAutoClientId

public MqttServerOptions setAutoClientId(boolean isAutoClientId)

Set if clientid should be auto-generated when it's "zero-bytes"

Parameters:

isAutoClientId -

Returns:

MQTT server options instance

isAutoClientId

public boolean isAutoClientId()

Returns:

if clientid should be auto-generated when it's "zero-bytes" (default is true)

getMaxClientIdLength

public int getMaxClientIdLength()

Returns:

the max client id length

setMaxClientIdLength

public MqttServerOptions setMaxClientIdLength(int maxClientIdLength)

Set the max client id length.

Parameters:

maxClientIdLength - the new value

Returns:

MQTT server options instance

setTimeoutOnConnect

public MqttServerOptions setTimeoutOnConnect(int timeoutOnConnect)

Set the timeout on CONNECT packet

Parameters:

timeoutOnConnect - timeout on CONNECT before closing connection

Returns:

MQTT server options instance

setUseProxyProtocol

public MqttServerOptions setUseProxyProtocol(boolean useProxyProtocol)

Description copied from class: NetServerOptions

Set whether the server uses the HA Proxy protocol

Overrides:

setUseProxyProtocol in class NetServerOptions

Returns:

a reference to this, so the API can be used fluently

isUseProxyProtocol

public boolean isUseProxyProtocol()

Overrides:

isUseProxyProtocol in class NetServerOptions

Returns:

whether the server uses the HA Proxy protocol

getProxyProtocolTimeout

public long getProxyProtocolTimeout()

Overrides:

getProxyProtocolTimeout in class NetServerOptions

Returns:

the Proxy protocol timeout, in time unit specified by NetServerOptions.getProxyProtocolTimeoutUnit().

setProxyProtocolTimeout

public MqttServerOptions setProxyProtocolTimeout(long proxyProtocolTimeout)

Description copied from class: NetServerOptions

Set the Proxy protocol timeout, default time unit is seconds.

Overrides:

setProxyProtocolTimeout in class NetServerOptions

Parameters:

proxyProtocolTimeout - the Proxy protocol timeout to set

Returns:

a reference to this, so the API can be used fluently

setProxyProtocolTimeoutUnit

public MqttServerOptions setProxyProtocolTimeoutUnit(TimeUnit proxyProtocolTimeoutUnit)

Description copied from class: NetServerOptions

Set the Proxy protocol timeout unit. If not specified, default is seconds.

Overrides:

setProxyProtocolTimeoutUnit in class NetServerOptions

Parameters:

proxyProtocolTimeoutUnit - specify time unit.

Returns:

a reference to this, so the API can be used fluently

getProxyProtocolTimeoutUnit

public TimeUnit getProxyProtocolTimeoutUnit()

Overrides:

getProxyProtocolTimeoutUnit in class NetServerOptions

Returns:

the Proxy protocol timeout unit.

timeoutOnConnect

public int timeoutOnConnect()

Returns:

timeout on CONNECT before closing connection

setUseWebSocket

public MqttServerOptions setUseWebSocket(boolean useWebSocket)

enable mqtt over websocket

Parameters:

useWebSocket - use mqtt over websocket

Returns:

MQTT server options instance

isUseWebSocket

public boolean isUseWebSocket()

Returns:

use mqtt over websocket

getWebSocketMaxFrameSize

public int getWebSocketMaxFrameSize()

Returns:

the WebSocket max frame size

setWebSocketMaxFrameSize

public void setWebSocketMaxFrameSize(int webSocketMaxFrameSize)

Set the WebSocket max frame size.

This should be used when WebSocket transport is used and maxMessageSize is larger than the WebSocket frame size

Parameters:

webSocketMaxFrameSize - the new frame size

isPerFrameWebSocketCompressionSupported

public boolean isPerFrameWebSocketCompressionSupported()

Get whether WebSocket the per-frame deflate compression extension is supported.

Returns:

true if the http server will accept the per-frame deflate compression extension

setPerFrameWebSocketCompressionSupported

public MqttServerOptions setPerFrameWebSocketCompressionSupported(boolean supported)

Enable or disable support for the WebSocket per-frame deflate compression extension.

Parameters:

supported - true when the per-frame deflate compression extension is supported

Returns:

a reference to this, so the API can be used fluently

isPerMessageWebSocketCompressionSupported

public boolean isPerMessageWebSocketCompressionSupported()

Get whether WebSocket the per-frame deflate compression extension is supported.

Returns:

true if the http server will accept the per-frame deflate compression extension

setPerMessageWebSocketCompressionSupported

public MqttServerOptions setPerMessageWebSocketCompressionSupported(boolean supported)

Enable or disable support for WebSocket per-message deflate compression extension.

Parameters:

supported - true when the per-message WebSocket compression extension is supported

Returns:

a reference to this, so the API can be used fluently

getWebSocketCompressionLevel

public int getWebSocketCompressionLevel()

Returns:

the current WebSocket deflate compression level

setWebSocketCompressionLevel

public MqttServerOptions setWebSocketCompressionLevel(int compressionLevel)

Set the WebSocket compression level.

Parameters:

compressionLevel - the compression level

Returns:

a reference to this, so the API can be used fluently

isWebSocketAllowServerNoContext

public boolean isWebSocketAllowServerNoContext()

Returns:

true when the WebSocket server will accept the server_no_context_takeover parameter for the per-message deflate compression extension offered by the client

setWebSocketAllowServerNoContext

public MqttServerOptions setWebSocketAllowServerNoContext(boolean accept)

Set whether the WebSocket server will accept the server_no_context_takeover parameter of the per-message deflate compression extension offered by the client.

Parameters:

accept - true to accept the server_no_context_takeover parameter when the client offers it

Returns:

a reference to this, so the API can be used fluently

isWebSocketPreferredClientNoContext

public boolean isWebSocketPreferredClientNoContext()

Returns:

true when the WebSocket server will accept the client_no_context_takeover parameter for the per-message deflate compression extension offered by the client

setWebSocketPreferredClientNoContext

public MqttServerOptions setWebSocketPreferredClientNoContext(boolean accept)

Set whether the WebSocket server will accept the client_no_context_takeover parameter of the per-message deflate compression extension offered by the client.

Parameters:

accept - true to accept the client_no_context_takeover parameter when the client offers it

Returns:

a reference to this, so the API can be used fluently

toJson

public JsonObject toJson()

Description copied from class: NetServerOptions

Convert to JSON

Overrides:

toJson in class NetServerOptions

Returns:

the JSON