/*
 * 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 io.netty.channel.socket.nio;

import io.netty.buffer.ChannelBufType;
import io.netty.buffer.MessageBuf;
import io.netty.channel.ChannelException;
import io.netty.channel.ChannelMetadata;
import io.netty.channel.socket.DefaultServerSocketChannelConfig;
import io.netty.channel.socket.ServerSocketChannelConfig;

import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.nio.channels.SelectionKey;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;

public class NioServerSocketChannel extends AbstractNioMessageChannel
                             implements io.netty.channel.socket.ServerSocketChannel {

    private static final ChannelMetadata METADATA = new ChannelMetadata(ChannelBufType.MESSAGE, false);

    private static ServerSocketChannel newSocket() {
        try {
            return ServerSocketChannel.open();
        } catch (IOException e) {
            throw new ChannelException(
                    "Failed to open a server socket.", e);
        }
    }

    private final ServerSocketChannelConfig config;

    public NioServerSocketChannel() {
        super(null, null, newSocket(), SelectionKey.OP_ACCEPT);
        config = new DefaultServerSocketChannelConfig(javaChannel().socket());
    }

    @Override
    public ChannelMetadata metadata() {
        return METADATA;
    }

    @Override
    public ServerSocketChannelConfig config() {
        return config;
    }

    @Override
    public boolean isActive() {
        return javaChannel().socket().isBound();
    }

    @Override
    public InetSocketAddress remoteAddress() {
        return null;
    }

    @Override
    protected ServerSocketChannel javaChannel() {
        return (ServerSocketChannel) super.javaChannel();
    }

    @Override
    protected SocketAddress localAddress0() {
        return javaChannel().socket().getLocalSocketAddress();
    }

    @Override
    protected void doBind(SocketAddress localAddress) throws Exception {
        javaChannel().socket().bind(localAddress);
        SelectionKey selectionKey = selectionKey();
        selectionKey.interestOps(selectionKey.interestOps() | SelectionKey.OP_ACCEPT);
    }

    @Override
    protected void doClose() throws Exception {
        javaChannel().close();
    }

    @Override
    protected int doReadMessages(MessageBuf<Object> buf) throws Exception {
        SocketChannel ch = javaChannel().accept();
        if (ch == null) {
            return 0;
        }
        buf.add(new NioSocketChannel(this, null, ch));
        return 1;
    }

    // Unnecessary stuff
    @Override
    protected boolean doConnect(
            SocketAddress remoteAddress, SocketAddress localAddress) throws Exception {
        throw new UnsupportedOperationException();
    }

    @Override
    protected void doFinishConnect() throws Exception {
        throw new UnsupportedOperationException();
    }

    @Override
    protected SocketAddress remoteAddress0() {
        return null;
    }

    @Override
    protected void doDisconnect() throws Exception {
        throw new UnsupportedOperationException();
    }

    @Override
    protected int doWriteMessages(MessageBuf<Object> buf, boolean lastSpin) throws Exception {
        throw new UnsupportedOperationException();
    }

    @Override
    protected AbstractNioMessageUnsafe newUnsafe() {
        return new NioServerSocketUnsafe();
    }

    private final class NioServerSocketUnsafe extends AbstractNioMessageUnsafe {
        @Override
        public void suspendRead() {
            selectionKey().interestOps(selectionKey().interestOps() & ~ SelectionKey.OP_ACCEPT);
        }

        @Override
        public void resumeRead() {
            selectionKey().interestOps(selectionKey().interestOps() | SelectionKey.OP_ACCEPT);
        }
    }
}

@@ -1823,38 +1823,17 @@
 cket(), 
-SelectionKey.OP_ACCEPT
+0
 );%0A     
@@ -4215,75 +4215,15 @@
 y().
-interestOps(selectionKey().interestOps() & ~ SelectionKey.OP_ACCEPT
+cancel(
 );%0A 
@@ -4301,90 +4301,181 @@
     
-selectionKey().interestOps(selectionKey().interestOps() %7C SelectionKey.OP_ACCEPT);
+try %7B%0A                doRegister();%0A            %7D catch (Exception e) %7B%0A                // TODO Auto-generated catch block%0A                e.printStackTrace();%0A            %7D
 %0A   

Fix checkstyle