Package com.linecorp.armeria.client

Class ClientFactoryOptions

java.lang.Object

com.linecorp.armeria.common.util.AbstractOptions<ClientFactoryOption<Object>,ClientFactoryOptionValue<Object>>

com.linecorp.armeria.client.ClientFactoryOptions

All Implemented Interfaces:

Iterable<ClientFactoryOptionValue<Object>>

public final class ClientFactoryOptions
extends AbstractOptions<ClientFactoryOption<Object>,ClientFactoryOptionValue<Object>>

A set of ClientFactoryOptions and their respective values.

Field Summary

Fields

Modifier and Type	Field	Description
static final ClientFactoryOption<Function<? super EventLoopGroup,? extends AddressResolverGroup<? extends InetSocketAddress>>>	ADDRESS_RESOLVER_GROUP_FACTORY	The factory that creates an AddressResolverGroup which resolves remote addresses into InetSocketAddresses.
static final ClientFactoryOption<Map<ChannelOption<?>,Object>>	CHANNEL_OPTIONS	The ChannelOptions of the sockets created by the ClientFactory.
static final ClientFactoryOption<Consumer<? super ChannelPipeline>>	CHANNEL_PIPELINE_CUSTOMIZER	The Consumer that customizes the Netty ChannelPipeline.
static final ClientFactoryOption<OutlierDetection>	CONNECTION_OUTLIER_DETECTION	The OutlierDetection which is used to detect unhealthy connections.
static final ClientFactoryOption<ConnectionPoolListener>	CONNECTION_POOL_LISTENER	The listener which is notified on a connection pool event.
static final ClientFactoryOption<Function<? super EventLoopGroup,? extends EventLoopScheduler>>	EVENT_LOOP_SCHEDULER_FACTORY	The factory that creates an EventLoopScheduler which is responsible for assigning an EventLoop to handle a connection to the specified Endpoint.
static final ClientFactoryOption<Http1HeaderNaming>	HTTP1_HEADER_NAMING	The Http1HeaderNaming which converts a lower-cased HTTP/2 header name into another HTTP/1 header name.
static final ClientFactoryOption<Integer>	HTTP1_MAX_CHUNK_SIZE	The maximum length of each chunk in an HTTP/1 response content.
static final ClientFactoryOption<Integer>	HTTP1_MAX_HEADER_SIZE	The maximum length of all headers in an HTTP/1 response.
static final ClientFactoryOption<Integer>	HTTP1_MAX_INITIAL_LINE_LENGTH	The maximum length of an HTTP/1 response initial line.
static final ClientFactoryOption<Long>	HTTP2_GRACEFUL_SHUTDOWN_TIMEOUT_MILLIS	The graceful connection shutdown timeout in milliseconds..
static final ClientFactoryOption<Integer>	HTTP2_INITIAL_CONNECTION_WINDOW_SIZE	The HTTP/2 initial connection flow-control window size.
static final ClientFactoryOption<Integer>	HTTP2_INITIAL_STREAM_WINDOW_SIZE	The SETTINGS_INITIAL_WINDOW_SIZE for HTTP/2 stream-level flow control.
static final ClientFactoryOption<Integer>	HTTP2_MAX_FRAME_SIZE	The SETTINGS_MAX_FRAME_SIZE that indicates the size of the largest frame payload that this client is willing to receive.
static final ClientFactoryOption<Long>	HTTP2_MAX_HEADER_LIST_SIZE	The HTTP/2 SETTINGS_MAX_HEADER_LIST_SIZE that indicates the maximum size of header list that the client is prepared to accept, in octets.
static final ClientFactoryOption<Long>	IDLE_TIMEOUT_MILLIS	The idle timeout of a socket connection in milliseconds.
static final ClientFactoryOption<Boolean>	KEEP_ALIVE_ON_PING	If the idle timeout is reset when an HTTP/2 PING frame or the response of "OPTIONS * HTTP/1.1" is received.
static final ClientFactoryOption<Long>	MAX_CONNECTION_AGE_MILLIS	The client-side max age of a connection for keep-alive in milliseconds.
static final ClientFactoryOption<Integer>	MAX_NUM_REQUESTS_PER_CONNECTION	The client-side maximum allowed number of requests that can be sent through one connection.
static final ClientFactoryOption<MeterRegistry>	METER_REGISTRY	The MeterRegistry which collects various stats.
static final ClientFactoryOption<Long>	PING_INTERVAL_MILLIS	The PING interval in milliseconds.
static final ClientFactoryOption<Boolean>	PREFER_HTTP1	Whether to use HTTP/1.1 instead of HTTP/2.
static final ClientFactoryOption<ProxyConfigSelector>	PROXY_CONFIG_SELECTOR	The ProxyConfigSelector which determines the ProxyConfig to be used.
static final ClientFactoryOption<Boolean>	SHUTDOWN_WORKER_GROUP_ON_CLOSE	Whether to shut down the worker EventLoopGroup when the ClientFactory is closed.
static final ClientFactoryOption<Boolean>	TLS_ALLOW_UNSAFE_CIPHERS	Deprecated. It's not recommended to enable this option.
static final ClientFactoryOption<Consumer<? super SslContextBuilder>>	TLS_CUSTOMIZER	The Consumer which can arbitrarily configure the SslContextBuilder that will be applied to the SSL session.
static final ClientFactoryOption<TlsEngineType>	TLS_ENGINE_TYPE	The TlsEngineType that will be used for processing TLS connections.
static final ClientFactoryOption<Boolean>	USE_HTTP1_PIPELINING	Whether to use HTTP pipelining for HTTP/1 connections.
static final ClientFactoryOption<Boolean>	USE_HTTP2_PREFACE	Whether to send an HTTP/2 preface string instead of an HTTP/1 upgrade request to negotiate the protocol version of a cleartext HTTP connection.
static final ClientFactoryOption<Boolean>	USE_HTTP2_WITHOUT_ALPN	Whether to use HTTP/2 without ALPN.
static final ClientFactoryOption<EventLoopGroup>	WORKER_GROUP	The worker EventLoopGroup.

Method Summary

Modifier and Type	Method	Description
Function<? super EventLoopGroup,? extends AddressResolverGroup<? extends InetSocketAddress>>	addressResolverGroupFactory()	Returns the factory that creates an AddressResolverGroup which resolves remote addresses into InetSocketAddresses.
Map<ChannelOption<?>,Object>	channelOptions()	Returns the ChannelOptions of the sockets created by the ClientFactory.
Consumer<? super ChannelPipeline>	channelPipelineCustomizer()	The Consumer that customizes the Netty ChannelPipeline.
OutlierDetection	connectionOutlierDetection()	Returns the OutlierDetection which is used to detect unhealthy connections.
ConnectionPoolListener	connectionPoolListener()	Returns the listener which is notified on a connection pool event.
Function<? super EventLoopGroup,? extends EventLoopScheduler>	eventLoopSchedulerFactory()	Returns the factory that creates an EventLoopScheduler which is responsible for assigning an EventLoop to handle a connection to the specified Endpoint.
Http1HeaderNaming	http1HeaderNaming()	Returns the Http1HeaderNaming which converts a lower-cased HTTP/2 header name into another header name.
int	http1MaxChunkSize()	Returns the maximum length of each chunk in an HTTP/1 response content.
int	http1MaxHeaderSize()	Returns the maximum length of all headers in an HTTP/1 response.
int	http1MaxInitialLineLength()	Returns the maximum length of an HTTP/1 response initial line.
long	http2GracefulShutdownTimeoutMillis()	Returns the graceful connection shutdown timeout in milliseconds.
int	http2InitialConnectionWindowSize()	Returns the HTTP/2 initial connection flow-control window size.
int	http2InitialStreamWindowSize()	Returns the SETTINGS_INITIAL_WINDOW_SIZE for HTTP/2 stream-level flow control.
int	http2MaxFrameSize()	Returns the SETTINGS_MAX_FRAME_SIZE that indicates the size of the largest frame payload that this client is willing to receive.
long	http2MaxHeaderListSize()	Returns the HTTP/2 SETTINGS_MAX_HEADER_LIST_SIZE that indicates the maximum size of header list that the client is prepared to accept, in octets.
long	idleTimeoutMillis()	Returns the idle timeout of a socket connection in milliseconds.
boolean	keepAliveOnPing()	Returns whether to keep connection alive when an HTTP/2 PING frame or the response of "OPTIONS * HTTP/1.1" is received.
long	maxConnectionAgeMillis()	Returns the client-side max age of a connection for keep-alive in milliseconds.
int	maxNumRequestsPerConnection()	Returns the client-side maximum allowed number of requests that can be sent through one connection.
MeterRegistry	meterRegistry()	Returns the MeterRegistry which collects various stats.
static ClientFactoryOptions	of()	Returns an empty singleton ClientFactoryOptions.
static ClientFactoryOptions	of(ClientFactoryOptions baseOptions, ClientFactoryOptionValue<?>... additionalValues)	Merges the specified ClientFactoryOptions and ClientFactoryOptionValues.
static ClientFactoryOptions	of(ClientFactoryOptions baseOptions, Iterable<? extends ClientFactoryOptionValue<?>> additionalValues)	Merges the specified ClientFactoryOptions and ClientFactoryOptionValues.
static ClientFactoryOptions	of(ClientFactoryOptionValue<?>... values)	Returns the ClientFactoryOptions with the specified ClientFactoryOptionValues.
static ClientFactoryOptions	of(Iterable<? extends ClientFactoryOptionValue<?>> values)	Returns the ClientFactoryOptions with the specified ClientFactoryOptionValues.
long	pingIntervalMillis()	Returns the PING interval in milliseconds.
boolean	preferHttp1()	Returns whether to use HTTP/1.1 instead of HTTP/2 .
ProxyConfigSelector	proxyConfigSelector()	The ProxyConfigSelector which determines the ProxyConfig to be used.
boolean	shutdownWorkerGroupOnClose()	Returns the flag whether to shut down the worker EventLoopGroup when the ClientFactory is closed.
boolean	tlsAllowUnsafeCiphers()	Returns whether to allow the bad cipher suites listed in RFC7540 for TLS handshake.
Consumer<? super SslContextBuilder>	tlsCustomizer()	Returns the Consumer which can arbitrarily configure the SslContextBuilder that will be applied to the SSL session.
TlsEngineType	tlsEngineType()	Returns the TlsEngineType that will be used for processing TLS connections.
boolean	useHttp1Pipelining()	Returns whether to use HTTP pipelining for HTTP/1 connections.
boolean	useHttp2Preface()	Returns whether to send an HTTP/2 preface string instead of an HTTP/1 upgrade request to negotiate the protocol version of a cleartext HTTP connection.
boolean	useHttp2WithoutAlpn()	Returns whether to use HTTP/2 over TLS without ALPN.
EventLoopGroup	workerGroup()	Returns the worker EventLoopGroup.

Methods inherited from class com.linecorp.armeria.common.util.AbstractOptions

asMap, get, iterator, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Details

WORKER_GROUP

public static final ClientFactoryOption<EventLoopGroup> WORKER_GROUP

The worker EventLoopGroup.

SHUTDOWN_WORKER_GROUP_ON_CLOSE

public static final ClientFactoryOption<Boolean> SHUTDOWN_WORKER_GROUP_ON_CLOSE

Whether to shut down the worker EventLoopGroup when the ClientFactory is closed.

EVENT_LOOP_SCHEDULER_FACTORY

public static final ClientFactoryOption<Function<? super EventLoopGroup,? extends EventLoopScheduler>> EVENT_LOOP_SCHEDULER_FACTORY

The factory that creates an EventLoopScheduler which is responsible for assigning an EventLoop to handle a connection to the specified Endpoint.

TLS_CUSTOMIZER

public static final ClientFactoryOption<Consumer<? super SslContextBuilder>> TLS_CUSTOMIZER

The Consumer which can arbitrarily configure the SslContextBuilder that will be applied to the SSL session.

TLS_ALLOW_UNSAFE_CIPHERS

@Deprecated
public static final ClientFactoryOption<Boolean> TLS_ALLOW_UNSAFE_CIPHERS

Deprecated.

It's not recommended to enable this option. Use it only when you have no other way to communicate with an insecure peer than this.

Whether to allow the bad cipher suites listed in RFC7540 for TLS handshake.

Note that enabling this option increases the security risk of your connection. Use it only when you must communicate with a legacy system that does not support secure cipher suites. See Section 9.2.2, RFC7540 for more information.

TLS_ENGINE_TYPE

@UnstableApi
public static final ClientFactoryOption<TlsEngineType> TLS_ENGINE_TYPE

The TlsEngineType that will be used for processing TLS connections.

ADDRESS_RESOLVER_GROUP_FACTORY

public static final ClientFactoryOption<Function<? super EventLoopGroup,? extends AddressResolverGroup<? extends InetSocketAddress>>> ADDRESS_RESOLVER_GROUP_FACTORY

The factory that creates an AddressResolverGroup which resolves remote addresses into InetSocketAddresses.

HTTP2_INITIAL_CONNECTION_WINDOW_SIZE

public static final ClientFactoryOption<Integer> HTTP2_INITIAL_CONNECTION_WINDOW_SIZE

The HTTP/2 initial connection flow-control window size.

HTTP2_INITIAL_STREAM_WINDOW_SIZE

public static final ClientFactoryOption<Integer> HTTP2_INITIAL_STREAM_WINDOW_SIZE

The SETTINGS_INITIAL_WINDOW_SIZE for HTTP/2 stream-level flow control.

HTTP2_MAX_FRAME_SIZE

public static final ClientFactoryOption<Integer> HTTP2_MAX_FRAME_SIZE

The SETTINGS_MAX_FRAME_SIZE that indicates the size of the largest frame payload that this client is willing to receive.

HTTP2_MAX_HEADER_LIST_SIZE

public static final ClientFactoryOption<Long> HTTP2_MAX_HEADER_LIST_SIZE

The HTTP/2 SETTINGS_MAX_HEADER_LIST_SIZE that indicates the maximum size of header list that the client is prepared to accept, in octets.

HTTP1_MAX_INITIAL_LINE_LENGTH

public static final ClientFactoryOption<Integer> HTTP1_MAX_INITIAL_LINE_LENGTH

The maximum length of an HTTP/1 response initial line.

HTTP1_MAX_HEADER_SIZE

public static final ClientFactoryOption<Integer> HTTP1_MAX_HEADER_SIZE

The maximum length of all headers in an HTTP/1 response.

HTTP1_MAX_CHUNK_SIZE

public static final ClientFactoryOption<Integer> HTTP1_MAX_CHUNK_SIZE

The maximum length of each chunk in an HTTP/1 response content.

IDLE_TIMEOUT_MILLIS

public static final ClientFactoryOption<Long> IDLE_TIMEOUT_MILLIS

The idle timeout of a socket connection in milliseconds.

KEEP_ALIVE_ON_PING

@UnstableApi
public static final ClientFactoryOption<Boolean> KEEP_ALIVE_ON_PING

If the idle timeout is reset when an HTTP/2 PING frame or the response of "OPTIONS * HTTP/1.1" is received.

PING_INTERVAL_MILLIS

public static final ClientFactoryOption<Long> PING_INTERVAL_MILLIS

The PING interval in milliseconds. When neither read nor write was performed for the specified period of time, a PING frame is sent for HTTP/2 or an OPTIONS request with an asterisk ("*") is sent for HTTP/1.

MAX_CONNECTION_AGE_MILLIS

public static final ClientFactoryOption<Long> MAX_CONNECTION_AGE_MILLIS

The client-side max age of a connection for keep-alive in milliseconds. If the value is greater than 0, a connection is disconnected after the specified amount of time since the connection was established. This option is disabled by default, which means unlimited.

CONNECTION_OUTLIER_DETECTION

@UnstableApi
public static final ClientFactoryOption<OutlierDetection> CONNECTION_OUTLIER_DETECTION

The OutlierDetection which is used to detect unhealthy connections. If an unhealthy connection is detected, it is disabled and a new connection will be created. This option is disabled by default.

MAX_NUM_REQUESTS_PER_CONNECTION

public static final ClientFactoryOption<Integer> MAX_NUM_REQUESTS_PER_CONNECTION

The client-side maximum allowed number of requests that can be sent through one connection. This option is disabled by default, which means unlimited.

USE_HTTP2_PREFACE

public static final ClientFactoryOption<Boolean> USE_HTTP2_PREFACE

Whether to send an HTTP/2 preface string instead of an HTTP/1 upgrade request to negotiate the protocol version of a cleartext HTTP connection.

Note that this option is only effective when the SessionProtocol of the Endpoint is SessionProtocol.HTTP. If the SessionProtocol is SessionProtocol.HTTPS or SessionProtocol.H2, ALPN will be used. If the SessionProtocol is SessionProtocol.H2C, the client will always use HTTP/2 connection preface.

PREFER_HTTP1

@UnstableApi
public static final ClientFactoryOption<Boolean> PREFER_HTTP1

Whether to use HTTP/1.1 instead of HTTP/2. If enabled, the client will not attempt to upgrade to HTTP/2 for SessionProtocol.HTTP and SessionProtocol.HTTPS.

USE_HTTP2_WITHOUT_ALPN

@UnstableApi
public static final ClientFactoryOption<Boolean> USE_HTTP2_WITHOUT_ALPN

Whether to use HTTP/2 without ALPN. This is useful if you want to communicate with an HTTP/2 server over TLS but the server does not support ALPN.

USE_HTTP1_PIPELINING

public static final ClientFactoryOption<Boolean> USE_HTTP1_PIPELINING

Whether to use HTTP pipelining for HTTP/1 connections.

CONNECTION_POOL_LISTENER

public static final ClientFactoryOption<ConnectionPoolListener> CONNECTION_POOL_LISTENER

The listener which is notified on a connection pool event.

HTTP2_GRACEFUL_SHUTDOWN_TIMEOUT_MILLIS

public static final ClientFactoryOption<Long> HTTP2_GRACEFUL_SHUTDOWN_TIMEOUT_MILLIS

The graceful connection shutdown timeout in milliseconds..

METER_REGISTRY

public static final ClientFactoryOption<MeterRegistry> METER_REGISTRY

The MeterRegistry which collects various stats.

PROXY_CONFIG_SELECTOR

public static final ClientFactoryOption<ProxyConfigSelector> PROXY_CONFIG_SELECTOR

The ProxyConfigSelector which determines the ProxyConfig to be used.

HTTP1_HEADER_NAMING

public static final ClientFactoryOption<Http1HeaderNaming> HTTP1_HEADER_NAMING

The Http1HeaderNaming which converts a lower-cased HTTP/2 header name into another HTTP/1 header name.

CHANNEL_OPTIONS

public static final ClientFactoryOption<Map<ChannelOption<?>,Object>> CHANNEL_OPTIONS

The ChannelOptions of the sockets created by the ClientFactory.

CHANNEL_PIPELINE_CUSTOMIZER

@UnstableApi
public static final ClientFactoryOption<Consumer<? super ChannelPipeline>> CHANNEL_PIPELINE_CUSTOMIZER

The Consumer that customizes the Netty ChannelPipeline. This customizer is run right before ChannelOutboundInvoker.connect(SocketAddress) is invoked by Armeria. This customizer is no-op by default.

Note that usage of this customizer is an advanced feature and may produce unintended side effects, including complete breakdown. It is not recommended if you are not familiar with Armeria and Netty internals.

Method Details

of

public static ClientFactoryOptions of()

Returns an empty singleton ClientFactoryOptions.

of

public static ClientFactoryOptions of(ClientFactoryOptionValue<?>... values)

Returns the ClientFactoryOptions with the specified ClientFactoryOptionValues.

of

public static ClientFactoryOptions of(Iterable<? extends ClientFactoryOptionValue<?>> values)

Returns the ClientFactoryOptions with the specified ClientFactoryOptionValues.

of

public static ClientFactoryOptions of(ClientFactoryOptions baseOptions,
 ClientFactoryOptionValue<?>... additionalValues)

Merges the specified ClientFactoryOptions and ClientFactoryOptionValues.

Returns:

the merged ClientFactoryOptions

of

public static ClientFactoryOptions of(ClientFactoryOptions baseOptions,
 Iterable<? extends ClientFactoryOptionValue<?>> additionalValues)

Merges the specified ClientFactoryOptions and ClientFactoryOptionValues.

Returns:

the merged ClientFactoryOptions

workerGroup

public EventLoopGroup workerGroup()

Returns the worker EventLoopGroup.

shutdownWorkerGroupOnClose

public boolean shutdownWorkerGroupOnClose()

Returns the flag whether to shut down the worker EventLoopGroup when the ClientFactory is closed.

eventLoopSchedulerFactory

public Function<? super EventLoopGroup,? extends EventLoopScheduler> eventLoopSchedulerFactory()

Returns the factory that creates an EventLoopScheduler which is responsible for assigning an EventLoop to handle a connection to the specified Endpoint.

channelOptions

public Map<ChannelOption<?>,Object> channelOptions()

Returns the ChannelOptions of the sockets created by the ClientFactory.

tlsCustomizer

public Consumer<? super SslContextBuilder> tlsCustomizer()

Returns the Consumer which can arbitrarily configure the SslContextBuilder that will be applied to the SSL session.

addressResolverGroupFactory

public Function<? super EventLoopGroup,? extends AddressResolverGroup<? extends InetSocketAddress>> addressResolverGroupFactory()

Returns the factory that creates an AddressResolverGroup which resolves remote addresses into InetSocketAddresses.

http2InitialConnectionWindowSize

public int http2InitialConnectionWindowSize()

Returns the HTTP/2 initial connection flow-control window size.

http2InitialStreamWindowSize

public int http2InitialStreamWindowSize()

Returns the SETTINGS_INITIAL_WINDOW_SIZE for HTTP/2 stream-level flow control.

http2MaxFrameSize

public int http2MaxFrameSize()

Returns the SETTINGS_MAX_FRAME_SIZE that indicates the size of the largest frame payload that this client is willing to receive.

http2MaxHeaderListSize

public long http2MaxHeaderListSize()

Returns the HTTP/2 SETTINGS_MAX_HEADER_LIST_SIZE that indicates the maximum size of header list that the client is prepared to accept, in octets.

http1MaxInitialLineLength

public int http1MaxInitialLineLength()

Returns the maximum length of an HTTP/1 response initial line.

http1MaxHeaderSize

public int http1MaxHeaderSize()

Returns the maximum length of all headers in an HTTP/1 response.

http1MaxChunkSize

public int http1MaxChunkSize()

Returns the maximum length of each chunk in an HTTP/1 response content.

idleTimeoutMillis

public long idleTimeoutMillis()

Returns the idle timeout of a socket connection in milliseconds.

keepAliveOnPing

@UnstableApi
public boolean keepAliveOnPing()

Returns whether to keep connection alive when an HTTP/2 PING frame or the response of "OPTIONS * HTTP/1.1" is received.

pingIntervalMillis

public long pingIntervalMillis()

Returns the PING interval in milliseconds. When neither read nor write was performed for the specified period of time, a PING frame is sent for HTTP/2 or an OPTIONS request with an asterisk ("*") is sent for HTTP/1.

maxConnectionAgeMillis

public long maxConnectionAgeMillis()

Returns the client-side max age of a connection for keep-alive in milliseconds. If the value is greater than 0, a connection is disconnected after the specified amount of the time since the connection was established.

maxNumRequestsPerConnection

public int maxNumRequestsPerConnection()

Returns the client-side maximum allowed number of requests that can be sent through one connection.

useHttp2Preface

public boolean useHttp2Preface()

Returns whether to send an HTTP/2 preface string instead of an HTTP/1 upgrade request to negotiate the protocol version of a cleartext HTTP connection.

Note that this option is only effective when the SessionProtocol of the Endpoint is SessionProtocol.HTTP. If the SessionProtocol is SessionProtocol.HTTPS or SessionProtocol.H2, ALPN will be used. If the SessionProtocol is SessionProtocol.H2C, the client will always use HTTP/2 connection preface.

preferHttp1

@UnstableApi
public boolean preferHttp1()

Returns whether to use HTTP/1.1 instead of HTTP/2 . If true, the client will not attempt to upgrade to HTTP/2 for SessionProtocol.HTTP and SessionProtocol.HTTPS.

useHttp2WithoutAlpn

@UnstableApi
public boolean useHttp2WithoutAlpn()

Returns whether to use HTTP/2 over TLS without ALPN.

useHttp1Pipelining

public boolean useHttp1Pipelining()

Returns whether to use HTTP pipelining for HTTP/1 connections.

connectionPoolListener

public ConnectionPoolListener connectionPoolListener()

Returns the listener which is notified on a connection pool event.

connectionOutlierDetection

@UnstableApi
public OutlierDetection connectionOutlierDetection()

Returns the OutlierDetection which is used to detect unhealthy connections.

http2GracefulShutdownTimeoutMillis

public long http2GracefulShutdownTimeoutMillis()

Returns the graceful connection shutdown timeout in milliseconds.

meterRegistry

public MeterRegistry meterRegistry()

Returns the MeterRegistry which collects various stats.

proxyConfigSelector

public ProxyConfigSelector proxyConfigSelector()

The ProxyConfigSelector which determines the ProxyConfig to be used.

http1HeaderNaming

public Http1HeaderNaming http1HeaderNaming()

Returns the Http1HeaderNaming which converts a lower-cased HTTP/2 header name into another header name. This is useful when communicating with a legacy system that only supports case-sensitive HTTP/1 headers.

tlsAllowUnsafeCiphers

public boolean tlsAllowUnsafeCiphers()

Returns whether to allow the bad cipher suites listed in RFC7540 for TLS handshake.

Note that enabling this option increases the security risk of your connection. Use it only when you must communicate with a legacy system that does not support secure cipher suites. See Section 9.2.2, RFC7540 for more information.

tlsEngineType

@UnstableApi
public TlsEngineType tlsEngineType()

Returns the TlsEngineType that will be used for processing TLS connections.

channelPipelineCustomizer

@UnstableApi
public Consumer<? super ChannelPipeline> channelPipelineCustomizer()

The Consumer that customizes the Netty ChannelPipeline. This customizer is run right before ChannelOutboundInvoker.connect(SocketAddress) is invoked by Armeria. This customizer is no-op by default.

Note that usage of this customizer is an advanced feature and may produce unintended side effects, including complete breakdown. It is not recommended if you are not familiar with Armeria and Netty internals.