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Apache HttpComponents HTTP/2 and HTTP/1.1 core component integration tests
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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
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 *   http://www.apache.org/licenses/LICENSE-2.0
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 * Unless required by applicable law or agreed to in writing,
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 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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package org.apache.hc.core5.testing.nio;

import javax.net.ssl.SSLContext;

import org.apache.hc.core5.annotation.Contract;
import org.apache.hc.core5.annotation.ThreadingBehavior;
import org.apache.hc.core5.http.ConnectionReuseStrategy;
import org.apache.hc.core5.http.ContentLengthStrategy;
import org.apache.hc.core5.http.HttpRequest;
import org.apache.hc.core5.http.HttpResponse;
import org.apache.hc.core5.http.config.CharCodingConfig;
import org.apache.hc.core5.http.config.H1Config;
import org.apache.hc.core5.http.impl.DefaultConnectionReuseStrategy;
import org.apache.hc.core5.http.impl.DefaultContentLengthStrategy;
import org.apache.hc.core5.http.impl.Http1StreamListener;
import org.apache.hc.core5.http.impl.nio.ClientHttp1IOEventHandler;
import org.apache.hc.core5.http.impl.nio.ClientHttp1StreamDuplexer;
import org.apache.hc.core5.http.impl.nio.DefaultHttpRequestWriterFactory;
import org.apache.hc.core5.http.impl.nio.DefaultHttpResponseParserFactory;
import org.apache.hc.core5.http.nio.NHttpMessageParser;
import org.apache.hc.core5.http.nio.NHttpMessageParserFactory;
import org.apache.hc.core5.http.nio.NHttpMessageWriter;
import org.apache.hc.core5.http.nio.NHttpMessageWriterFactory;
import org.apache.hc.core5.http.protocol.HttpProcessor;
import org.apache.hc.core5.reactor.IOEventHandler;
import org.apache.hc.core5.reactor.IOEventHandlerFactory;
import org.apache.hc.core5.reactor.ProtocolIOSession;
import org.apache.hc.core5.util.Args;

/**
 * @since 5.0
 */
@Contract(threading = ThreadingBehavior.IMMUTABLE)
class InternalClientHttp1EventHandlerFactory implements IOEventHandlerFactory {

    private final HttpProcessor httpProcessor;
    private final H1Config h1Config;
    private final CharCodingConfig charCodingConfig;
    private final ConnectionReuseStrategy connectionReuseStrategy;
    private final SSLContext sslContext;
    private final NHttpMessageParserFactory responseParserFactory;
    private final NHttpMessageWriterFactory requestWriterFactory;

    InternalClientHttp1EventHandlerFactory(
            final HttpProcessor httpProcessor,
            final H1Config h1Config,
            final CharCodingConfig charCodingConfig,
            final ConnectionReuseStrategy connectionReuseStrategy,
            final SSLContext sslContext) {
        this.httpProcessor = Args.notNull(httpProcessor, "HTTP processor");
        this.h1Config = h1Config != null ? h1Config : H1Config.DEFAULT;
        this.charCodingConfig = charCodingConfig != null ? charCodingConfig : CharCodingConfig.DEFAULT;
        this.connectionReuseStrategy = connectionReuseStrategy != null ? connectionReuseStrategy :
                DefaultConnectionReuseStrategy.INSTANCE;
        this.sslContext = sslContext;
        this.responseParserFactory = new DefaultHttpResponseParserFactory(this.h1Config);
        this.requestWriterFactory = DefaultHttpRequestWriterFactory.INSTANCE;
    }

    protected ClientHttp1StreamDuplexer createClientHttp1StreamDuplexer(
            final ProtocolIOSession ioSession,
            final HttpProcessor httpProcessor,
            final H1Config h1Config,
            final CharCodingConfig charCodingConfig,
            final ConnectionReuseStrategy connectionReuseStrategy,
            final NHttpMessageParser incomingMessageParser,
            final NHttpMessageWriter outgoingMessageWriter,
            final ContentLengthStrategy incomingContentStrategy,
            final ContentLengthStrategy outgoingContentStrategy,
            final Http1StreamListener streamListener) {
        return new ClientHttp1StreamDuplexer(ioSession, httpProcessor, h1Config, charCodingConfig,
                connectionReuseStrategy, incomingMessageParser, outgoingMessageWriter,
                incomingContentStrategy, outgoingContentStrategy, streamListener);
    }

    @Override
    public IOEventHandler createHandler(final ProtocolIOSession ioSession, final Object attachment) {
        if (sslContext != null) {
            ioSession.startTls(sslContext, null, null ,null, null);
        }
        final ClientHttp1StreamDuplexer streamDuplexer = createClientHttp1StreamDuplexer(
                ioSession,
                httpProcessor,
                h1Config,
                charCodingConfig,
                connectionReuseStrategy,
                responseParserFactory.create(),
                requestWriterFactory.create(),
                DefaultContentLengthStrategy.INSTANCE,
                DefaultContentLengthStrategy.INSTANCE,
                LoggingHttp1StreamListener.INSTANCE_CLIENT);
        return new ClientHttp1IOEventHandler(streamDuplexer);
    }

}