com.sun.grizzly.nio.DefaultSelectionKeyHandler Maven / Gradle / Ivy

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/*
 * 
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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 * Copyright 2007-2008 Sun Microsystems, Inc. All rights reserved.
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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
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 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
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package com.sun.grizzly.nio;

import com.sun.grizzly.Grizzly;
import com.sun.grizzly.IOEvent;
import java.io.IOException;
import java.nio.channels.SelectionKey;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author oleksiys
 */
public class DefaultSelectionKeyHandler implements SelectionKeyHandler {
    
    private static Logger logger = Grizzly.logger;

    private static final int[] ioEvent2SelectionKeyInterest = {0,
        SelectionKey.OP_ACCEPT, 0, SelectionKey.OP_CONNECT, SelectionKey.OP_READ,
        SelectionKey.OP_WRITE, 0};
    
    public void onKeyRegistered(SelectionKey key) {
        if (logger.isLoggable(Level.FINE)) {
            logger.log(Level.FINE, "KEY IS REGISTERED: " + key);
        }
    }
    
    public void cancel(SelectionKey key) throws IOException {
        key.cancel();
    }

    public int ioEvent2SelectionKeyInterest(IOEvent ioEvent) {
        return ioEvent2SelectionKeyInterest[ioEvent.ordinal()];
    }

    public IOEvent selectionKeyInterest2IoEvent(int selectionKeyInterest) {
        if ((selectionKeyInterest & SelectionKey.OP_READ) != 0) {
            return IOEvent.READ;
        } else if ((selectionKeyInterest & SelectionKey.OP_WRITE) != 0) {
            return IOEvent.WRITE;
        } else if ((selectionKeyInterest & SelectionKey.OP_ACCEPT) != 0) {
            return IOEvent.SERVER_ACCEPT;
        } else if ((selectionKeyInterest & SelectionKey.OP_CONNECT) != 0) {
            return IOEvent.CONNECTED;
        }

        return IOEvent.NONE;
    }
    
    public boolean onAcceptInterest(SelectionKey key) throws IOException {
        return true;
    }

    public boolean onConnectInterest(SelectionKey key) throws IOException {
        return true;
    }

    public boolean onReadInterest(SelectionKey key) throws IOException {
        return true;
    }
    
    public boolean onWriteInterest(SelectionKey key) throws IOException {
        return true;
    }

    public NIOConnection getConnectionForKey(SelectionKey selectionKey) {
        return (NIOConnection) selectionKey.attachment();
    }

    public void setConnectionForKey(NIOConnection connection,
            SelectionKey selectionKey) {
        selectionKey.attach(connection);
    }
}