Http2StreamChannelBootstrap.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.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelOption;
import io.netty.channel.ChannelPipeline;
import io.netty.util.AttributeKey;
import io.netty.util.concurrent.EventExecutor;
import io.netty.util.concurrent.Future;
import io.netty.util.concurrent.Promise;
import io.netty.util.internal.ObjectUtil;
import io.netty.util.internal.StringUtil;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;

import java.nio.channels.ClosedChannelException;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

public final class Http2StreamChannelBootstrap {
    private static final InternalLogger logger = InternalLoggerFactory.getInstance(Http2StreamChannelBootstrap.class);
    @SuppressWarnings("unchecked")
    private static final Map.Entry<ChannelOption<?>, Object>[] EMPTY_OPTION_ARRAY = new Map.Entry[0];
    @SuppressWarnings("unchecked")
    private static final Map.Entry<AttributeKey<?>, Object>[] EMPTY_ATTRIBUTE_ARRAY = new Map.Entry[0];

    // The order in which ChannelOptions are applied is important they may depend on each other for validation
    // purposes.
    private final Map<ChannelOption<?>, Object> options = new LinkedHashMap<ChannelOption<?>, Object>();
    private final Map<AttributeKey<?>, Object> attrs = new ConcurrentHashMap<AttributeKey<?>, Object>();
    private final Channel channel;
    private volatile ChannelHandler handler;

    // Cache the ChannelHandlerContext to speed up open(...) operations.
    private volatile ChannelHandlerContext multiplexCtx;

    public Http2StreamChannelBootstrap(Channel channel) {
        this.channel = ObjectUtil.checkNotNull(channel, "channel");
    }

    /**
     * Allow to specify a {@link ChannelOption} which is used for the {@link Http2StreamChannel} instances once they got
// ... (189 more lines)