com.sun.enterprise.web.connector.grizzly.NioProvider Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of grizzly-framework-http Show documentation
The newest version!
/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * 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_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package com.sun.enterprise.web.connector.grizzly;

import java.nio.channels.SelectableChannel;
import java.nio.channels.Selector;
import java.nio.channels.SelectionKey;

/**
 * 
 * Nio Provider interface to handle 6562829. AS socket
 * service will use an implementation of this to provide
 * correct keyFor implementation.
 *
 * @author 
 */
public abstract class NioProvider{

    private static final String NIO_PROVIDER_CLASS = 
    "com.sun.enterprise.web.connector.grizzly.NioProviderImpl";

    private static NioProvider nioProvider = null;
    static {
        try {
           nioProvider = (NioProvider)
           Class.forName(NIO_PROVIDER_CLASS).newInstance();
        } catch (Exception e) {
        }
    }
    
    /**
     * Retrieves the key representing the channel's registration 
     * with the given selector.
     */
    public abstract SelectionKey keyFor(SelectableChannel channel, Selector sel); 
    
    /**
     * Return the Nio Provider in the VM.
     */
    public static NioProvider getProvider() {
         return nioProvider;
    }
}