HttpRestR66Initializer.java

/*
 * This file is part of Waarp Project (named also Waarp or GG).
 *
 *  Copyright (c) 2019, Waarp SAS, and individual contributors by the @author
 *  tags. See the COPYRIGHT.txt in the distribution for a full listing of
 * individual contributors.
 *
 *  All Waarp Project is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 *
 * Waarp is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along with
 * Waarp . If not, see <http://www.gnu.org/licenses/>.
 */
package org.waarp.openr66.protocol.http.rest;

import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.http.HttpContentCompressor;
import io.netty.handler.codec.http.HttpServerCodec;
import io.netty.handler.ssl.SslHandler;
import io.netty.handler.stream.ChunkedWriteHandler;
import org.waarp.common.crypto.ssl.WaarpSslContextFactory;
import org.waarp.gateway.kernel.rest.RestConfiguration;

/**
 * Pipeline Factory for Rest HTTP support for R66
 */
public class HttpRestR66Initializer extends ChannelInitializer<SocketChannel> {
  private final boolean useHttpCompression;
  private final WaarpSslContextFactory waarpSslContextFactory;
  private final RestConfiguration restConfiguration;

  public HttpRestR66Initializer(final boolean useHttpCompression,
                                final WaarpSslContextFactory waarpSslContextFactory,
                                final RestConfiguration configuration) {
    this.waarpSslContextFactory = waarpSslContextFactory;
    this.useHttpCompression = useHttpCompression;
    restConfiguration = configuration;
  }

  @Override
  protected void initChannel(final SocketChannel ch) {
    // Create a default pipeline implementation.
    final ChannelPipeline pipeline = ch.pipeline();

    // Enable HTTPS if necessary.
    if (waarpSslContextFactory != null) {
      final SslHandler handler =
          waarpSslContextFactory.createHandlerServer(false, ch);
      pipeline.addLast("ssl", handler);
    }

    pipeline.addLast("codec", new HttpServerCodec());
    if (useHttpCompression) {
      pipeline.addLast("deflater", new HttpContentCompressor());
    }
    pipeline.addLast("chunkedWriter", new ChunkedWriteHandler());
    final HttpRestR66Handler r66handler =
        new HttpRestR66Handler(restConfiguration);
    pipeline.addLast("handler", r66handler);
  }
}