Http2MultiplexCodecBuilder.java — netty Source File

Source Code

/*
 * Copyright 2017 The Netty Project
 *
 * The Netty Project 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:
 *
 *   https://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.netty.handler.codec.http2;

import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerAdapter;

import static io.netty.util.internal.ObjectUtil.checkNotNull;

/**
 * A builder for {@link Http2MultiplexCodec}.
 *
 * @deprecated use {@link Http2FrameCodecBuilder} together with {@link Http2MultiplexHandler}.
 */
@Deprecated
public class Http2MultiplexCodecBuilder
        extends AbstractHttp2ConnectionHandlerBuilder<Http2MultiplexCodec, Http2MultiplexCodecBuilder> {
    private Http2FrameWriter frameWriter;

    final ChannelHandler childHandler;
    private ChannelHandler upgradeStreamHandler;

    Http2MultiplexCodecBuilder(boolean server, ChannelHandler childHandler) {
        server(server);
        this.childHandler = checkSharable(checkNotNull(childHandler, "childHandler"));
        // For backwards compatibility we should disable to timeout by default at this layer.
        gracefulShutdownTimeoutMillis(0);
    }

    private static ChannelHandler checkSharable(ChannelHandler handler) {
        if (handler instanceof ChannelHandlerAdapter && !((ChannelHandlerAdapter) handler).isSharable() &&
                !handler.getClass().isAnnotationPresent(ChannelHandler.Sharable.class)) {
            throw new IllegalArgumentException("The handler must be Sharable");
        }
        return handler;
    }

    // For testing only.
    Http2MultiplexCodecBuilder frameWriter(Http2FrameWriter frameWriter) {
        this.frameWriter = checkNotNull(frameWriter, "frameWriter");
        return this;
    }

    /**
     * Creates a builder for an HTTP/2 client.
     *
     * @param childHandler the handler added to channels for remotely-created streams. It must be
// ... (205 more lines)