com.azure.core.http.netty

Class NettyAsyncHttpClientBuilder

java.lang.Object

com.azure.core.http.netty.NettyAsyncHttpClientBuilder

public class NettyAsyncHttpClientBuilder
extends Object

Builder class responsible for creating instances of NettyAsyncHttpClient.

Building a new HttpClient instance

HttpClient client = new NettyAsyncHttpClientBuilder()
    .port(8080)
    .wiretap(true)
    .build();

See Also:

NettyAsyncHttpClient, HttpClient

Constructor Summary

Constructors

Constructor and Description
NettyAsyncHttpClientBuilder() Creates a new builder instance, where a builder is capable of generating multiple instances of NettyAsyncHttpClient.
NettyAsyncHttpClientBuilder(reactor.netty.http.client.HttpClient nettyHttpClient) Creates a new builder instance, where a builder is capable of generating multiple instances of NettyAsyncHttpClient based on the provided reactor netty HttpClient.

Method Summary

Modifier and Type	Method and Description
com.azure.core.http.HttpClient	build() Creates a new Netty-backed HttpClient instance on every call, using the configuration set in the builder at the time of the build method call.
NettyAsyncHttpClientBuilder	connectionProvider(reactor.netty.resources.ConnectionProvider connectionProvider) Sets the connection provider.
NettyAsyncHttpClientBuilder	disableBufferCopy(boolean disableBufferCopy) Disables deep copy of response ByteBuffer into a heap location that is managed by this client as opposed to the underlying netty library which may use direct buffer pool.
NettyAsyncHttpClientBuilder	nioEventLoopGroup(NioEventLoopGroup nioEventLoopGroup) Sets the NIO event loop group that will be used to run IO loops.
NettyAsyncHttpClientBuilder	port(int port) Sets the port which this client should connect, which by default will be set to port 80.
NettyAsyncHttpClientBuilder	proxy(com.azure.core.http.ProxyOptions proxyOptions) Sets the proxy options that the client will use.
NettyAsyncHttpClientBuilder	wiretap(boolean enableWiretap) Enables the Netty wiretap feature.

Methods inherited from class java.lang.Object

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

Constructor Detail

NettyAsyncHttpClientBuilder

public NettyAsyncHttpClientBuilder()

Creates a new builder instance, where a builder is capable of generating multiple instances of NettyAsyncHttpClient.

NettyAsyncHttpClientBuilder

public NettyAsyncHttpClientBuilder(reactor.netty.http.client.HttpClient nettyHttpClient)

Creates a new builder instance, where a builder is capable of generating multiple instances of NettyAsyncHttpClient based on the provided reactor netty HttpClient.

// Creates a reactor-netty client with netty logging enabled.
reactor.netty.http.client.HttpClient baseHttpClient = reactor.netty.http.client.HttpClient.create()
    .tcpConfiguration(tcp -> tcp.bootstrap(b -> b.handler(new LoggingHandler(LogLevel.INFO))));
// Create an HttpClient based on above reactor-netty client and configure EventLoop count.
HttpClient client = new NettyAsyncHttpClientBuilder(baseHttpClient)
    .nioEventLoopGroup(new NioEventLoopGroup(5))
    .build();

Parameters:

nettyHttpClient - base reactor netty HttpClient

Method Detail

build

public com.azure.core.http.HttpClient build()

Creates a new Netty-backed HttpClient instance on every call, using the configuration set in the builder at the time of the build method call.

Returns:

A new Netty-backed HttpClient instance.

Throws:

IllegalStateException - If the builder is configured to use an unknown proxy type.

connectionProvider

public NettyAsyncHttpClientBuilder connectionProvider(reactor.netty.resources.ConnectionProvider connectionProvider)

Sets the connection provider.

Parameters:

connectionProvider - the connection provider

Returns:

the updated NettyAsyncHttpClientBuilder object

proxy

public NettyAsyncHttpClientBuilder proxy(com.azure.core.http.ProxyOptions proxyOptions)

Sets the proxy options that the client will use.

Code Samples

HttpClient client = new NettyAsyncHttpClientBuilder()
    .proxy(new ProxyOptions(ProxyOptions.Type.HTTP, new InetSocketAddress("<proxy-host>", 8888)))
    .build();

Parameters:

proxyOptions - The proxy configuration to use.

Returns:

the updated NettyAsyncHttpClientBuilder object

wiretap

public NettyAsyncHttpClientBuilder wiretap(boolean enableWiretap)

Enables the Netty wiretap feature.

Parameters:

enableWiretap - Flag indicating wiretap status

Returns:

the updated NettyAsyncHttpClientBuilder object

port

public NettyAsyncHttpClientBuilder port(int port)

Sets the port which this client should connect, which by default will be set to port 80.

Parameters:

port - The port to connect to.

Returns:

the updated NettyAsyncHttpClientBuilder object

nioEventLoopGroup

public NettyAsyncHttpClientBuilder nioEventLoopGroup(NioEventLoopGroup nioEventLoopGroup)

Sets the NIO event loop group that will be used to run IO loops.

Code Samples

int threadCount = 5;
HttpClient client = new NettyAsyncHttpClientBuilder()
    .nioEventLoopGroup(new NioEventLoopGroup(threadCount))
    .build();

Parameters:

nioEventLoopGroup - The NioEventLoopGroup that will run IO loops.

Returns:

the updated NettyAsyncHttpClientBuilder object

disableBufferCopy

public NettyAsyncHttpClientBuilder disableBufferCopy(boolean disableBufferCopy)

Disables deep copy of response ByteBuffer into a heap location that is managed by this client as opposed to the underlying netty library which may use direct buffer pool.
Caution: Disabling this is not recommended as it can lead to data corruption if the downstream consumers of the response do not handle the byte buffers before netty releases them. If copy is disabled, underlying Netty layer can potentially reclaim byte array backed by the ByteBuffer upon the return of onNext(). So, users should ensure they process the ByteBuffer immediately and then return.

HttpClient client = new NettyAsyncHttpClientBuilder()
    .port(8080)
    .disableBufferCopy(true)
    .build();

client.send(httpRequest)
    .flatMapMany(response -> response.getBody())
    .map(byteBuffer -> completeProcessingByteBuffer(byteBuffer))
    .subscribe();

Parameters:

disableBufferCopy - If set to true, the client built from this builder will not deep-copy response ByteBuffers.

Returns:

The updated NettyAsyncHttpClientBuilder object.