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 * 
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
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 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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package com.sun.grizzly.nio;

import com.sun.grizzly.AbstractTransport;
import com.sun.grizzly.Connection;
import java.io.IOException;
import java.nio.channels.Selector;

/**
 *
 * @author oleksiys
 */
public abstract class AbstractNIOTransport extends AbstractTransport
        implements NIOTransport {
    protected SelectorHandler selectorHandler;
    protected SelectionKeyHandler selectionKeyHandler;

    protected int selectorRunnersCount;
    
    protected SelectorRunner[] selectorRunners;
    
    protected NIOChannelDistributor nioChannelDistributor;

    public AbstractNIOTransport(String name) {
        super(name);
    }

    public SelectionKeyHandler getSelectionKeyHandler() {
        return selectionKeyHandler;
    }

    public void setSelectionKeyHandler(SelectionKeyHandler selectionKeyHandler) {
        this.selectionKeyHandler = selectionKeyHandler;
    }

    public SelectorHandler getSelectorHandler() {
        return selectorHandler;
    }

    public void setSelectorHandler(SelectorHandler selectorHandler) {
        this.selectorHandler = selectorHandler;
    }

    public int getSelectorRunnersCount() {
        return selectorRunnersCount;
    }

    public void setSelectorRunnersCount(int selectorRunnersCount) {
        this.selectorRunnersCount = selectorRunnersCount;
    }

    
    protected void startSelectorRunners() throws IOException {
        selectorRunners = new SelectorRunner[selectorRunnersCount];
        
        synchronized(selectorRunners) {
            for (int i = 0; i < selectorRunnersCount; i++) {
                SelectorRunner runner =
                        new SelectorRunner(this, SelectorFactory.instance().create());
                runner.start();
                selectorRunners[i] = runner;
            }
        }
    }
    
    protected void stopSelectorRunners() throws IOException {
        if (selectorRunners == null) return;
        
        synchronized(selectorRunners) {
            for (int i = 0; i < selectorRunners.length; i++) {
                SelectorRunner runner = selectorRunners[i];
                if (runner != null) {
                    runner.stop();
                    selectorRunners[i] = null;

                    Selector selector = runner.getSelector();
                    if (selector != null) {
                        try {
                            selector.close();
                        } catch (IOException e) {
                        }
                    }
                }
            }
            
            selectorRunners = null;
        }
    }

    public NIOChannelDistributor getNioChannelDistributor() {
        return nioChannelDistributor;
    }

    public void setNioChannelDistributor(NIOChannelDistributor
            nioChannelDistributor) {
        this.nioChannelDistributor = nioChannelDistributor;
    }

    protected SelectorRunner[] getSelectorRunners() {
        return selectorRunners;
    }

    protected abstract void closeConnection(Connection connection)
            throws IOException;
}