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/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* .
*
*/
package org.apache.hc.client5.http.nio;
import java.io.IOException;
import java.util.concurrent.Future;
import org.apache.hc.client5.http.EndpointInfo;
import org.apache.hc.core5.annotation.Contract;
import org.apache.hc.core5.annotation.ThreadingBehavior;
import org.apache.hc.core5.concurrent.BasicFuture;
import org.apache.hc.core5.concurrent.FutureCallback;
import org.apache.hc.core5.http.nio.AsyncClientExchangeHandler;
import org.apache.hc.core5.http.nio.AsyncPushConsumer;
import org.apache.hc.core5.http.nio.AsyncRequestProducer;
import org.apache.hc.core5.http.nio.AsyncResponseConsumer;
import org.apache.hc.core5.http.nio.HandlerFactory;
import org.apache.hc.core5.http.nio.support.BasicClientExchangeHandler;
import org.apache.hc.core5.http.protocol.HttpContext;
import org.apache.hc.core5.http.protocol.HttpCoreContext;
import org.apache.hc.core5.io.CloseMode;
import org.apache.hc.core5.io.ModalCloseable;
import org.apache.hc.core5.util.Timeout;
/**
* Client connection endpoint that can be used to execute message exchanges.
*
* @since 5.0
*/
@Contract(threading = ThreadingBehavior.SAFE)
public abstract class AsyncConnectionEndpoint implements ModalCloseable {
/**
* Initiates a message exchange using the given handler.
*
* @param id unique operation ID or {@code null}.
* @param exchangeHandler the message exchange handler.
* @param pushHandlerFactory the push handler factory.
* @param context the execution context.
*/
public abstract void execute(
String id,
AsyncClientExchangeHandler exchangeHandler,
HandlerFactory pushHandlerFactory,
HttpContext context);
/**
* Determines if the connection to the remote endpoint is still open and valid.
*/
public abstract boolean isConnected();
/**
* Sets socket timeout.
*
* @param timeout the socket timeout.
*/
public abstract void setSocketTimeout(Timeout timeout);
@Override
public final void close() throws IOException {
close(CloseMode.GRACEFUL);
}
/**
* Initiates a message exchange using the given handler.
*
* @param id unique operation ID or {@code null}.
* @param exchangeHandler the message exchange handler.
* @param context the execution context.
*/
public void execute(
final String id,
final AsyncClientExchangeHandler exchangeHandler,
final HttpContext context) {
execute(id, exchangeHandler, null, context);
}
/**
* Initiates message exchange using the given request producer and response consumer.
*
* @param id unique operation ID or {@code null}.
* @param requestProducer the request producer.
* @param responseConsumer the response consumer.
* @param pushHandlerFactory the push handler factory.
* @param context the execution context.
* @param callback the result callback.
* @param the result representation.
* @return the result future.
*/
public final Future execute(
final String id,
final AsyncRequestProducer requestProducer,
final AsyncResponseConsumer responseConsumer,
final HandlerFactory pushHandlerFactory,
final HttpContext context,
final FutureCallback callback) {
final BasicFuture future = new BasicFuture<>(callback);
execute(id, new BasicClientExchangeHandler<>(requestProducer, responseConsumer,
new FutureCallback() {
@Override
public void completed(final T result) {
future.completed(result);
}
@Override
public void failed(final Exception ex) {
future.failed(ex);
}
@Override
public void cancelled() {
future.cancel();
}
}),
pushHandlerFactory,
context != null ? context : HttpCoreContext.create());
return future;
}
/**
* Initiates message exchange using the given request producer and response consumer.
*
* @param id unique operation ID or {@code null}.
* @param requestProducer the request producer.
* @param responseConsumer the response consumer.
* @param context the execution context.
* @param callback the result callback.
* @param the result representation.
* @return the result future.
*/
public final Future execute(
final String id,
final AsyncRequestProducer requestProducer,
final AsyncResponseConsumer responseConsumer,
final HttpContext context,
final FutureCallback callback) {
return execute(id, requestProducer, responseConsumer, null, context, callback);
}
/**
* Initiates message exchange using the given request producer and response consumer.
*
* @param id unique operation ID or {@code null}.
* @param requestProducer the request producer.
* @param responseConsumer the response consumer.
* @param pushHandlerFactory the push handler factory.
* @param callback the result callback.
* @param the result representation.
* @return the result future.
*/
public final Future execute(
final String id,
final AsyncRequestProducer requestProducer,
final AsyncResponseConsumer responseConsumer,
final HandlerFactory pushHandlerFactory,
final FutureCallback callback) {
return execute(id, requestProducer, responseConsumer, pushHandlerFactory, null, callback);
}
/**
* Initiates message exchange using the given request producer and response consumer.
*
* @param id unique operation ID or {@code null}.
* @param requestProducer the request producer.
* @param responseConsumer the response consumer.
* @param callback the result callback.
* @param the result representation.
* @return the result future.
*/
public final Future execute(
final String id,
final AsyncRequestProducer requestProducer,
final AsyncResponseConsumer responseConsumer,
final FutureCallback callback) {
return execute(id, requestProducer, responseConsumer, null, null, callback);
}
/**
* Returns information about the endpoint or {@code null} when not connected.
*
* @since 5.4
*/
public EndpointInfo getInfo() {
return null;
}
}
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