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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * Copyright 2012 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.channel;

import io.netty.buffer.ByteBufAllocator;
import io.netty.util.AbstractConstant;
import io.netty.util.ConstantPool;
import io.netty.util.internal.ObjectUtil;

import java.net.InetAddress;
import java.net.NetworkInterface;

/**
 * A {@link ChannelOption} allows to configure a {@link ChannelConfig} in a type-safe
 * way. Which {@link ChannelOption} is supported depends on the actual implementation
 * of {@link ChannelConfig} and may depend on the nature of the transport it belongs
 * to.
 *
 * @param    the type of the value which is valid for the {@link ChannelOption}
 */
public class ChannelOption extends AbstractConstant> {

    private static final ConstantPool> pool = new ConstantPool>() {
        @Override
        protected ChannelOption newConstant(int id, String name) {
            return new ChannelOption(id, name);
        }
    };

    /**
     * Returns the {@link ChannelOption} of the specified name.
     */
    @SuppressWarnings("unchecked")
    public static  ChannelOption valueOf(String name) {
        return (ChannelOption) pool.valueOf(name);
    }

    /**
     * Shortcut of {@link #valueOf(String) valueOf(firstNameComponent.getName() + "#" + secondNameComponent)}.
     */
    @SuppressWarnings("unchecked")
    public static  ChannelOption valueOf(Class firstNameComponent, String secondNameComponent) {
        return (ChannelOption) pool.valueOf(firstNameComponent, secondNameComponent);
    }

    /**
     * Returns {@code true} if a {@link ChannelOption} exists for the given {@code name}.
     */
    public static boolean exists(String name) {
        return pool.exists(name);
    }

    /**
     * Creates a new {@link ChannelOption} for the given {@code name} or fail with an
     * {@link IllegalArgumentException} if a {@link ChannelOption} for the given {@code name} exists.
     *
     * @deprecated use {@link #valueOf(String)}.
     */
    @Deprecated
    @SuppressWarnings("unchecked")
    public static  ChannelOption newInstance(String name) {
        return (ChannelOption) pool.newInstance(name);
    }

    public static final ChannelOption ALLOCATOR = valueOf("ALLOCATOR");
    public static final ChannelOption RCVBUF_ALLOCATOR = valueOf("RCVBUF_ALLOCATOR");
    public static final ChannelOption MESSAGE_SIZE_ESTIMATOR = valueOf("MESSAGE_SIZE_ESTIMATOR");

    public static final ChannelOption CONNECT_TIMEOUT_MILLIS = valueOf("CONNECT_TIMEOUT_MILLIS");
    /**
     * @deprecated Use {@link MaxMessagesRecvByteBufAllocator}
     * and {@link MaxMessagesRecvByteBufAllocator#maxMessagesPerRead(int)}.
     */
    @Deprecated
    public static final ChannelOption MAX_MESSAGES_PER_READ = valueOf("MAX_MESSAGES_PER_READ");
    public static final ChannelOption MAX_MESSAGES_PER_WRITE = valueOf("MAX_MESSAGES_PER_WRITE");

    public static final ChannelOption WRITE_SPIN_COUNT = valueOf("WRITE_SPIN_COUNT");
    /**
     * @deprecated Use {@link #WRITE_BUFFER_WATER_MARK}
     */
    @Deprecated
    public static final ChannelOption WRITE_BUFFER_HIGH_WATER_MARK = valueOf("WRITE_BUFFER_HIGH_WATER_MARK");
    /**
     * @deprecated Use {@link #WRITE_BUFFER_WATER_MARK}
     */
    @Deprecated
    public static final ChannelOption WRITE_BUFFER_LOW_WATER_MARK = valueOf("WRITE_BUFFER_LOW_WATER_MARK");
    public static final ChannelOption WRITE_BUFFER_WATER_MARK =
            valueOf("WRITE_BUFFER_WATER_MARK");

    public static final ChannelOption ALLOW_HALF_CLOSURE = valueOf("ALLOW_HALF_CLOSURE");
    public static final ChannelOption AUTO_READ = valueOf("AUTO_READ");

    /**
     * If {@code true} then the {@link Channel} is closed automatically and immediately on write failure.
     * The default value is {@code true}.
     */
    public static final ChannelOption AUTO_CLOSE = valueOf("AUTO_CLOSE");

    public static final ChannelOption SO_BROADCAST = valueOf("SO_BROADCAST");
    public static final ChannelOption SO_KEEPALIVE = valueOf("SO_KEEPALIVE");
    public static final ChannelOption SO_SNDBUF = valueOf("SO_SNDBUF");
    public static final ChannelOption SO_RCVBUF = valueOf("SO_RCVBUF");
    public static final ChannelOption SO_REUSEADDR = valueOf("SO_REUSEADDR");
    public static final ChannelOption SO_LINGER = valueOf("SO_LINGER");
    public static final ChannelOption SO_BACKLOG = valueOf("SO_BACKLOG");
    public static final ChannelOption SO_TIMEOUT = valueOf("SO_TIMEOUT");

    public static final ChannelOption IP_TOS = valueOf("IP_TOS");
    public static final ChannelOption IP_MULTICAST_ADDR = valueOf("IP_MULTICAST_ADDR");
    public static final ChannelOption IP_MULTICAST_IF = valueOf("IP_MULTICAST_IF");
    public static final ChannelOption IP_MULTICAST_TTL = valueOf("IP_MULTICAST_TTL");
    public static final ChannelOption IP_MULTICAST_LOOP_DISABLED = valueOf("IP_MULTICAST_LOOP_DISABLED");

    public static final ChannelOption TCP_NODELAY = valueOf("TCP_NODELAY");
    /**
     * Client-side TCP FastOpen. Sending data with the initial TCP handshake.
     */
    public static final ChannelOption TCP_FASTOPEN_CONNECT = valueOf("TCP_FASTOPEN_CONNECT");

    /**
     * Server-side TCP FastOpen. Configures the maximum number of outstanding (waiting to be accepted) TFO connections.
     */
    public static final ChannelOption TCP_FASTOPEN = valueOf(ChannelOption.class, "TCP_FASTOPEN");

    @Deprecated
    public static final ChannelOption DATAGRAM_CHANNEL_ACTIVE_ON_REGISTRATION =
            valueOf("DATAGRAM_CHANNEL_ACTIVE_ON_REGISTRATION");

    public static final ChannelOption SINGLE_EVENTEXECUTOR_PER_GROUP =
            valueOf("SINGLE_EVENTEXECUTOR_PER_GROUP");

    /**
     * Creates a new {@link ChannelOption} with the specified unique {@code name}.
     */
    private ChannelOption(int id, String name) {
        super(id, name);
    }

    @Deprecated
    protected ChannelOption(String name) {
        this(pool.nextId(), name);
    }

    /**
     * Validate the value which is set for the {@link ChannelOption}. Sub-classes
     * may override this for special checks.
     */
    public void validate(T value) {
        ObjectUtil.checkNotNull(value, "value");
    }
}