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/*
* Copyright 2014 Netflix, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.reactivex.netty.contexts;
import io.netty.buffer.ByteBuf;
import io.reactivex.netty.RxNetty;
import io.reactivex.netty.client.RxClient;
import io.reactivex.netty.contexts.http.HttpContextClientChannelFactory;
import io.reactivex.netty.contexts.http.HttpRequestIdProvider;
import io.reactivex.netty.pipeline.PipelineConfigurator;
import io.reactivex.netty.protocol.http.client.HttpClient;
import io.reactivex.netty.protocol.http.client.HttpClientBuilder;
import io.reactivex.netty.protocol.http.client.HttpClientRequest;
import io.reactivex.netty.protocol.http.client.HttpClientResponse;
import io.reactivex.netty.protocol.http.server.HttpServer;
import io.reactivex.netty.protocol.http.server.HttpServerBuilder;
import io.reactivex.netty.protocol.http.server.HttpServerRequest;
import io.reactivex.netty.protocol.http.server.HttpServerResponse;
import io.reactivex.netty.protocol.http.server.RequestHandler;
import io.reactivex.netty.server.RxServer;
/**
* A factory class to create {@link RxClient} and {@link RxServer} objects which are context aware.
* In case, the factory method provided here does not work for a usecase, the provided factory methods for creating the
* builders must be used.
*
* @author Nitesh Kant
*/
public final class RxContexts {
public static final ThreadLocalRequestCorrelator DEFAULT_CORRELATOR = new ThreadLocalRequestCorrelator();
private static String defaultRequestIdContextKeyName = "X-RXNETTY-REQUEST-ID";
private RxContexts() {
}
public static HttpServerBuilder newHttpServerBuilder(int port, RequestHandler requestHandler,
RequestCorrelator correlator) {
HttpRequestIdProvider provider = new HttpRequestIdProvider(defaultRequestIdContextKeyName, correlator);
return newHttpServerBuilder(port, requestHandler, provider, correlator);
}
public static HttpServerBuilder newHttpServerBuilder(int port, RequestHandler requestHandler,
RequestCorrelator correlator, PipelineConfigurator, HttpServerResponse> configurator) {
HttpRequestIdProvider provider = new HttpRequestIdProvider(defaultRequestIdContextKeyName, correlator);
return newHttpServerBuilder(port, requestHandler, provider, correlator, configurator);
}
public static HttpServerBuilder newHttpServerBuilder(int port, RequestHandler requestHandler,
String requestIdHeaderName,
RequestCorrelator correlator) {
HttpRequestIdProvider provider = new HttpRequestIdProvider(requestIdHeaderName, correlator);
return newHttpServerBuilder(port, requestHandler, provider, correlator);
}
public static HttpClientBuilder newHttpClientBuilder(String host, int port,
RequestCorrelator correlator) {
HttpRequestIdProvider provider = new HttpRequestIdProvider(defaultRequestIdContextKeyName, correlator);
return newHttpClientBuilder(host, port, provider, correlator);
}
public static HttpClientBuilder newHttpClientBuilder(String host, int port,
RequestCorrelator correlator, PipelineConfigurator, HttpClientRequest> httpConfigurator) {
HttpRequestIdProvider provider = new HttpRequestIdProvider(defaultRequestIdContextKeyName, correlator);
return newHttpClientBuilder(host, port, provider, correlator, httpConfigurator);
}
public static HttpClientBuilder newHttpClientBuilder(String host, int port, String requestIdHeaderName,
RequestCorrelator correlator) {
HttpRequestIdProvider provider = new HttpRequestIdProvider(requestIdHeaderName, correlator);
return newHttpClientBuilder(host, port, provider, correlator);
}
public static HttpServerBuilder newHttpServerBuilder(int port, RequestHandler requestHandler,
RequestIdProvider provider,
RequestCorrelator correlator,
PipelineConfigurator, HttpServerResponse> configurator) {
return RxNetty.newHttpServerBuilder(port, requestHandler)
.pipelineConfigurator(ContextPipelineConfigurators.httpServerConfigurator(provider,
correlator, configurator));
}
public static HttpServerBuilder newHttpServerBuilder(int port, RequestHandler requestHandler,
RequestIdProvider provider,
RequestCorrelator correlator) {
return RxNetty.newHttpServerBuilder(port, requestHandler)
.pipelineConfigurator(ContextPipelineConfigurators.httpServerConfigurator(provider,
correlator));
}
public static HttpClientBuilder newHttpClientBuilder(String host, int port,
RequestIdProvider provider,
RequestCorrelator correlator) {
HttpClientBuilder builder = RxNetty.newHttpClientBuilder(host, port);
return builder.pipelineConfigurator(ContextPipelineConfigurators.httpClientConfigurator(provider,
correlator))
.withChannelFactory(new HttpContextClientChannelFactory(builder.getBootstrap(),
correlator,
builder.getEventsSubject()));
}
public static HttpClientBuilder newHttpClientBuilder(String host, int port,
RequestIdProvider provider, RequestCorrelator correlator,
PipelineConfigurator, HttpClientRequest> httpConfigurator) {
HttpClientBuilder builder = RxNetty.newHttpClientBuilder(host, port);
return builder.pipelineConfigurator(ContextPipelineConfigurators.httpClientConfigurator(provider,
correlator,
httpConfigurator))
.withChannelFactory(new HttpContextClientChannelFactory(builder.getBootstrap(), correlator,
builder.getEventsSubject()));
}
public static HttpServer createHttpServer(int port, RequestHandler requestHandler) {
return newHttpServerBuilder(port, requestHandler, defaultRequestIdContextKeyName,
DEFAULT_CORRELATOR).build();
}
public static HttpServer createHttpServer(int port, RequestHandler requestHandler,
String requestIdHeaderName) {
return newHttpServerBuilder(port, requestHandler, requestIdHeaderName, DEFAULT_CORRELATOR).build();
}
public static HttpClient createHttpClient(String host, int port) {
return RxContexts.newHttpClientBuilder(host, port, defaultRequestIdContextKeyName,
DEFAULT_CORRELATOR).build();
}
public static HttpClient createHttpClient(String host, int port, String requestIdHeaderName) {
return RxContexts.newHttpClientBuilder(host, port, requestIdHeaderName,
DEFAULT_CORRELATOR).build();
}
public static HttpServer createHttpServer(int port, RequestHandler requestHandler,
PipelineConfigurator, HttpServerResponse> configurator) {
HttpRequestIdProvider provider = new HttpRequestIdProvider(defaultRequestIdContextKeyName, DEFAULT_CORRELATOR);
return newHttpServerBuilder(port, requestHandler, defaultRequestIdContextKeyName, DEFAULT_CORRELATOR)
.pipelineConfigurator(ContextPipelineConfigurators
.httpServerConfigurator(provider, DEFAULT_CORRELATOR, configurator)).build();
}
public static HttpServer createHttpServer(int port, RequestHandler requestHandler,
String requestIdHeaderName,
PipelineConfigurator, HttpServerResponse> configurator) {
HttpRequestIdProvider provider = new HttpRequestIdProvider(requestIdHeaderName, DEFAULT_CORRELATOR);
return newHttpServerBuilder(port, requestHandler, requestIdHeaderName, DEFAULT_CORRELATOR)
.pipelineConfigurator(ContextPipelineConfigurators
.httpServerConfigurator(provider, DEFAULT_CORRELATOR, configurator)).build();
}
public static HttpClient createHttpClient(String host, int port,
PipelineConfigurator, HttpClientRequest> configurator) {
HttpRequestIdProvider provider = new HttpRequestIdProvider(defaultRequestIdContextKeyName, DEFAULT_CORRELATOR);
return RxContexts.newHttpClientBuilder(host, port, defaultRequestIdContextKeyName,
DEFAULT_CORRELATOR)
.pipelineConfigurator(ContextPipelineConfigurators.httpClientConfigurator(provider,
DEFAULT_CORRELATOR,
configurator))
.build();
}
public static HttpClient createHttpClient(String host, int port, String requestIdHeaderName,
PipelineConfigurator, HttpClientRequest> configurator) {
HttpRequestIdProvider provider = new HttpRequestIdProvider(requestIdHeaderName, DEFAULT_CORRELATOR);
return RxContexts.newHttpClientBuilder(host, port, requestIdHeaderName, DEFAULT_CORRELATOR)
.pipelineConfigurator(ContextPipelineConfigurators.httpClientConfigurator(provider,
DEFAULT_CORRELATOR,
configurator))
.build();
}
/**
* Default Context key name used for extracting the request Id. This is the default and will be useful to set a
* system wide requestId key name so that it is consistent between all clients and the server created through
* this factory class.
*
* @param name The name of the context key to be used as default.
*/
public static void useRequestIdContextKey(String name) {
defaultRequestIdContextKeyName = name;
}
}
