io.servicetalk.http.netty.PipelinedLBHttpConnectionFactory Maven / Gradle / Ivy

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/*
 * Copyright © 2018-2023 Apple Inc. and the ServiceTalk project authors
 *
 * 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.servicetalk.http.netty;

import io.servicetalk.client.api.ConnectionFactoryFilter;
import io.servicetalk.concurrent.api.Single;
import io.servicetalk.http.api.FilterableStreamingHttpConnection;
import io.servicetalk.http.api.HttpExecutionContext;
import io.servicetalk.http.api.StreamingHttpConnectionFilterFactory;
import io.servicetalk.http.api.StreamingHttpRequestResponseFactory;
import io.servicetalk.transport.api.ExecutionStrategy;
import io.servicetalk.transport.api.TransportObserver;

import javax.annotation.Nullable;

import static io.servicetalk.http.api.HttpProtocolVersion.HTTP_1_1;
import static io.servicetalk.http.netty.StreamingConnectionFactory.buildStreaming;
import static java.util.Objects.requireNonNull;

final class PipelinedLBHttpConnectionFactory extends AbstractLBHttpConnectionFactory {
    PipelinedLBHttpConnectionFactory(
            final ReadOnlyHttpClientConfig config, final HttpExecutionContext executionContext,
            @Nullable final StreamingHttpConnectionFilterFactory connectionFilterFunction,
            final StreamingHttpRequestResponseFactory reqRespFactory,
            final ExecutionStrategy connectStrategy,
            final ConnectionFactoryFilter connectionFactoryFilter,
            final ProtocolBinding protocolBinding) {
        super(config, executionContext, version -> reqRespFactory, connectStrategy, connectionFactoryFilter,
                connectionFilterFunction, protocolBinding);
        requireNonNull(config.h1Config(), "H1ProtocolConfig is required");
    }

    @Override
    Single newFilterableConnection(final ResolvedAddress resolvedAddress,
                                                                      final TransportObserver observer) {
        assert config.h1Config() != null;
        return buildStreaming(executionContext, resolvedAddress, config, observer)
                .map(conn -> new PipelinedStreamingHttpConnection(conn, config.h1Config(),
                        reqRespFactoryFunc.apply(HTTP_1_1), config.allowDropTrailersReadFromTransport()));
    }
}