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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
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 *
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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_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
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package org.glassfish.grizzly.spdy;

import org.glassfish.grizzly.Connection;
import org.glassfish.grizzly.spdy.v3.SpdySession3;
import org.glassfish.grizzly.spdy.v31.SpdySession31;

/**
 * Supported SPDY versions enum
 * 
 * @author Alexey Stashok
 */
public enum SpdyVersion {
    SPDY_3(new SessionFactory() {

        @Override
        public SpdySession create(final Connection connection,
                final boolean isServer, final SpdyHandlerFilter handlerFilter) {
            return new SpdySession3(connection, isServer, handlerFilter);
        }
    }, "spdy/3"),
    
    
    SPDY_3_1(new SessionFactory() {

        @Override
        public SpdySession create(Connection connection, boolean isServer, SpdyHandlerFilter handlerFilter) {
            return new SpdySession31(connection, isServer, handlerFilter);
        }
    }, "spdy/3.1");
    
    
    private final String toString;
    private final SessionFactory factory;
    
    SpdyVersion(final SessionFactory factory, final String toString) {
        this.factory = factory;
        this.toString = toString;
    }

    public SpdySession newSession(final Connection connection,
            final boolean isServer,
            final SpdyHandlerFilter handlerFilter) {
        return factory.create(connection, isServer, handlerFilter);
    }
    
    @Override
    public String toString() {
        return toString;
    }
    
    public static SpdyVersion fromString(final String spdyVersion) {
        if (SPDY_3.toString().equalsIgnoreCase(spdyVersion)) {
            return SPDY_3;
        } else if (SPDY_3_1.toString().equalsIgnoreCase(spdyVersion)) {
            return SPDY_3_1;
        }
        
        return null;
    }
    
    private interface SessionFactory {

        SpdySession create(final Connection connection,
                           final boolean isServer,
                           final SpdyHandlerFilter handlerFilter);
    }
}