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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:
 *
 *   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 org.jboss.netty.channel.socket;

import org.jboss.netty.channel.ChannelException;
import org.jboss.netty.channel.DefaultChannelConfig;
import org.jboss.netty.util.internal.ConversionUtil;

import java.net.Socket;
import java.net.SocketException;

/**
 * The default {@link SocketChannelConfig} implementation.
 */
public class DefaultSocketChannelConfig extends DefaultChannelConfig
                                        implements SocketChannelConfig {

    private final Socket socket;

    /**
     * Creates a new instance.
     */
    public DefaultSocketChannelConfig(Socket socket) {
        if (socket == null) {
            throw new NullPointerException("socket");
        }
        this.socket = socket;
    }

    @Override
    public boolean setOption(String key, Object value) {
        if (super.setOption(key, value)) {
            return true;
        }

        if ("receiveBufferSize".equals(key)) {
            setReceiveBufferSize(ConversionUtil.toInt(value));
        } else if ("sendBufferSize".equals(key)) {
            setSendBufferSize(ConversionUtil.toInt(value));
        } else if ("tcpNoDelay".equals(key)) {
            setTcpNoDelay(ConversionUtil.toBoolean(value));
        } else if ("keepAlive".equals(key)) {
            setKeepAlive(ConversionUtil.toBoolean(value));
        } else if ("reuseAddress".equals(key)) {
            setReuseAddress(ConversionUtil.toBoolean(value));
        } else if ("soLinger".equals(key)) {
            setSoLinger(ConversionUtil.toInt(value));
        } else if ("trafficClass".equals(key)) {
            setTrafficClass(ConversionUtil.toInt(value));
        } else {
            return false;
        }
        return true;
    }

    public int getReceiveBufferSize() {
        try {
            return socket.getReceiveBufferSize();
        } catch (SocketException e) {
            throw new ChannelException(e);
        }
    }

    public int getSendBufferSize() {
        try {
            return socket.getSendBufferSize();
        } catch (SocketException e) {
            throw new ChannelException(e);
        }
    }

    public int getSoLinger() {
        try {
            return socket.getSoLinger();
        } catch (SocketException e) {
            throw new ChannelException(e);
        }
    }

    public int getTrafficClass() {
        try {
            return socket.getTrafficClass();
        } catch (SocketException e) {
            throw new ChannelException(e);
        }
    }

    public boolean isKeepAlive() {
        try {
            return socket.getKeepAlive();
        } catch (SocketException e) {
            throw new ChannelException(e);
        }
    }

    public boolean isReuseAddress() {
        try {
            return socket.getReuseAddress();
        } catch (SocketException e) {
            throw new ChannelException(e);
        }
    }

    public boolean isTcpNoDelay() {
        try {
            return socket.getTcpNoDelay();
        } catch (SocketException e) {
            throw new ChannelException(e);
        }
    }

    public void setKeepAlive(boolean keepAlive) {
        try {
            socket.setKeepAlive(keepAlive);
        } catch (SocketException e) {
            throw new ChannelException(e);
        }
    }

    public void setPerformancePreferences(
            int connectionTime, int latency, int bandwidth) {
        socket.setPerformancePreferences(connectionTime, latency, bandwidth);
    }

    public void setReceiveBufferSize(int receiveBufferSize) {
        try {
            socket.setReceiveBufferSize(receiveBufferSize);
        } catch (SocketException e) {
            throw new ChannelException(e);
        }
    }

    public void setReuseAddress(boolean reuseAddress) {
        try {
            socket.setReuseAddress(reuseAddress);
        } catch (SocketException e) {
            throw new ChannelException(e);
        }
    }

    public void setSendBufferSize(int sendBufferSize) {
        try {
            socket.setSendBufferSize(sendBufferSize);
        } catch (SocketException e) {
            throw new ChannelException(e);
        }
    }

    public void setSoLinger(int soLinger) {
        try {
            if (soLinger < 0) {
                socket.setSoLinger(false, 0);
            } else {
                socket.setSoLinger(true, soLinger);
            }
        } catch (SocketException e) {
            throw new ChannelException(e);
        }
    }

    public void setTcpNoDelay(boolean tcpNoDelay) {
        try {
            socket.setTcpNoDelay(tcpNoDelay);
        } catch (SocketException e) {
            throw new ChannelException(e);
        }
    }

    public void setTrafficClass(int trafficClass) {
        try {
            socket.setTrafficClass(trafficClass);
        } catch (SocketException e) {
            throw new ChannelException(e);
        }
    }
}