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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging 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 2011 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:
 *
 * http://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.sctp;

import com.sun.nio.sctp.SctpChannel;
import com.sun.nio.sctp.SctpStandardSocketOptions;
import io.netty.buffer.ByteBufAllocator;
import io.netty.channel.ChannelException;
import io.netty.channel.ChannelOption;
import io.netty.channel.DefaultChannelConfig;
import io.netty.channel.MessageSizeEstimator;
import io.netty.channel.RecvByteBufAllocator;
import io.netty.channel.WriteBufferWaterMark;
import io.netty.util.internal.ObjectUtil;
import io.netty.util.internal.PlatformDependent;

import java.io.IOException;
import java.util.Map;

import static io.netty.channel.ChannelOption.SO_RCVBUF;
import static io.netty.channel.ChannelOption.SO_SNDBUF;
import static io.netty.channel.sctp.SctpChannelOption.SCTP_INIT_MAXSTREAMS;
import static io.netty.channel.sctp.SctpChannelOption.SCTP_NODELAY;

/**
 * The default {@link SctpChannelConfig} implementation for SCTP.
 */
public class DefaultSctpChannelConfig extends DefaultChannelConfig implements SctpChannelConfig {

    private final SctpChannel javaChannel;

    public DefaultSctpChannelConfig(io.netty.channel.sctp.SctpChannel channel, SctpChannel javaChannel) {
        super(channel);
        this.javaChannel = ObjectUtil.checkNotNull(javaChannel, "javaChannel");

        // Enable TCP_NODELAY by default if possible.
        if (PlatformDependent.canEnableTcpNoDelayByDefault()) {
            try {
                setSctpNoDelay(true);
            } catch (Exception e) {
                // Ignore.
            }
        }
    }

    @Override
    public Map, Object> getOptions() {
        return getOptions(
                super.getOptions(),
                SO_RCVBUF, SO_SNDBUF, SCTP_NODELAY, SCTP_INIT_MAXSTREAMS);
    }

    @SuppressWarnings("unchecked")
    @Override
    public  T getOption(ChannelOption option) {
        if (option == SO_RCVBUF) {
            return (T) Integer.valueOf(getReceiveBufferSize());
        }
        if (option == SO_SNDBUF) {
            return (T) Integer.valueOf(getSendBufferSize());
        }
        if (option == SCTP_NODELAY) {
            return (T) Boolean.valueOf(isSctpNoDelay());
        }
        if (option == SCTP_INIT_MAXSTREAMS) {
            return (T) getInitMaxStreams();
        }
        return super.getOption(option);
    }

    @Override
    public  boolean setOption(ChannelOption option, T value) {
        validate(option, value);

        if (option == SO_RCVBUF) {
            setReceiveBufferSize((Integer) value);
        } else if (option == SO_SNDBUF) {
            setSendBufferSize((Integer) value);
        } else if (option == SCTP_NODELAY) {
            setSctpNoDelay((Boolean) value);
        } else if (option == SCTP_INIT_MAXSTREAMS) {
            setInitMaxStreams((SctpStandardSocketOptions.InitMaxStreams) value);
        } else {
            return super.setOption(option, value);
        }

        return true;
    }

    @Override
    public boolean isSctpNoDelay() {
        try {
            return javaChannel.getOption(SctpStandardSocketOptions.SCTP_NODELAY);
        } catch (IOException e) {
            throw new ChannelException(e);
        }
    }

    @Override
    public SctpChannelConfig setSctpNoDelay(boolean sctpNoDelay) {
        try {
            javaChannel.setOption(SctpStandardSocketOptions.SCTP_NODELAY, sctpNoDelay);
        } catch (IOException e) {
            throw new ChannelException(e);
        }
        return this;
    }

    @Override
    public int getSendBufferSize() {
        try {
            return javaChannel.getOption(SctpStandardSocketOptions.SO_SNDBUF);
        } catch (IOException e) {
            throw new ChannelException(e);
        }
    }

    @Override
    public SctpChannelConfig setSendBufferSize(int sendBufferSize) {
        try {
            javaChannel.setOption(SctpStandardSocketOptions.SO_SNDBUF, sendBufferSize);
        } catch (IOException e) {
            throw new ChannelException(e);
        }
        return this;
    }

    @Override
    public int getReceiveBufferSize() {
        try {
            return javaChannel.getOption(SctpStandardSocketOptions.SO_RCVBUF);
        } catch (IOException e) {
            throw new ChannelException(e);
        }
    }

    @Override
    public SctpChannelConfig setReceiveBufferSize(int receiveBufferSize) {
        try {
            javaChannel.setOption(SctpStandardSocketOptions.SO_RCVBUF, receiveBufferSize);
        } catch (IOException e) {
            throw new ChannelException(e);
        }
        return this;
    }

    @Override
    public SctpStandardSocketOptions.InitMaxStreams getInitMaxStreams() {
        try {
            return javaChannel.getOption(SctpStandardSocketOptions.SCTP_INIT_MAXSTREAMS);
        } catch (IOException e) {
            throw new ChannelException(e);
        }
    }

    @Override
    public SctpChannelConfig setInitMaxStreams(SctpStandardSocketOptions.InitMaxStreams initMaxStreams) {
        try {
            javaChannel.setOption(SctpStandardSocketOptions.SCTP_INIT_MAXSTREAMS, initMaxStreams);
        } catch (IOException e) {
            throw new ChannelException(e);
        }
        return this;
    }

    @Override
    public SctpChannelConfig setConnectTimeoutMillis(int connectTimeoutMillis) {
        super.setConnectTimeoutMillis(connectTimeoutMillis);
        return this;
    }

    @Override
    @Deprecated
    public SctpChannelConfig setMaxMessagesPerRead(int maxMessagesPerRead) {
        super.setMaxMessagesPerRead(maxMessagesPerRead);
        return this;
    }

    @Override
    public SctpChannelConfig setWriteSpinCount(int writeSpinCount) {
        super.setWriteSpinCount(writeSpinCount);
        return this;
    }

    @Override
    public SctpChannelConfig setAllocator(ByteBufAllocator allocator) {
        super.setAllocator(allocator);
        return this;
    }

    @Override
    public SctpChannelConfig setRecvByteBufAllocator(RecvByteBufAllocator allocator) {
        super.setRecvByteBufAllocator(allocator);
        return this;
    }

    @Override
    public SctpChannelConfig setAutoRead(boolean autoRead) {
        super.setAutoRead(autoRead);
        return this;
    }

    @Override
    public SctpChannelConfig setAutoClose(boolean autoClose) {
        super.setAutoClose(autoClose);
        return this;
    }

    @Override
    public SctpChannelConfig setWriteBufferHighWaterMark(int writeBufferHighWaterMark) {
        super.setWriteBufferHighWaterMark(writeBufferHighWaterMark);
        return this;
    }

    @Override
    public SctpChannelConfig setWriteBufferLowWaterMark(int writeBufferLowWaterMark) {
        super.setWriteBufferLowWaterMark(writeBufferLowWaterMark);
        return this;
    }

    @Override
    public SctpChannelConfig setWriteBufferWaterMark(WriteBufferWaterMark writeBufferWaterMark) {
        super.setWriteBufferWaterMark(writeBufferWaterMark);
        return this;
    }

    @Override
    public SctpChannelConfig setMessageSizeEstimator(MessageSizeEstimator estimator) {
        super.setMessageSizeEstimator(estimator);
        return this;
    }
}