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/*
 * The contents of this file are subject to the terms 
 * of the Common Development and Distribution License 
 * (the "License").  You may not use this file except 
 * in compliance with the License.
 * 
 * You can obtain a copy of the license at 
 * glassfish/bootstrap/legal/CDDLv1.0.txt or 
 * https://glassfish.dev.java.net/public/CDDLv1.0.html. 
 * See the License for the specific language governing 
 * permissions and limitations under the License.
 * 
 * When distributing Covered Code, include this CDDL 
 * HEADER in each file and include the License file at 
 * glassfish/bootstrap/legal/CDDLv1.0.txt.  If applicable, 
 * add the following below this CDDL HEADER, with the 
 * fields enclosed by brackets "[]" replaced with your 
 * own identifying information: Portions Copyright [yyyy] 
 * [name of copyright owner]
 */
// Copyright (c) 1998, 2007, Oracle. All rights reserved.  

/**
 * This class stores variables for the version and build Numbers that are used in printouts and exceptions.
 *
 * @author    Eric Gwin
 * @since    1.0,
 *          1.16 Added get and set Methods. Made variables private. - EJG
 */
package oracle.toplink.essentials;

public class Version {
    // The current copyright info for TopLink. 
    private static final String CopyrightString = "Copyright (c) 1998, 2007, Oracle.  All rights reserved.";

    // The current version of TopLink. 
    // This will be used by all product components and included in exceptions.
    private static String product = "Oracle TopLink Essentials";
    private static final String version = "@VERSION@";
    private static final String buildNumber = "@BUILD_NUMBER@";

    /** Keep track of JDK version in order to make some decisions about datastructures. **/
    public static final int JDK_VERSION_NOT_SET = 0;
    public static final int JDK_1_3 = 1;
    public static final int JDK_1_4 = 2;
    public static final int JDK_1_5 = 3;
    public static int JDK_VERSION = JDK_VERSION_NOT_SET;

    public static String getProduct() {
        return product;
    }

    public static void setProduct(String ProductName) {
        product = ProductName;
    }

    public static String getVersion() {
        return version;
    }

    public static String getBuildNumber() {
        return buildNumber;
    }

    /**
    * INTERNAL:
    *  return the JDK version we are using.
    */
    public static int getJDKVersion() {
        if (JDK_VERSION == JDK_VERSION_NOT_SET) {
            String version = System.getProperty("java.version");
            if ((version != null) && version.startsWith("1.5")) {
                useJDK15();
            } else if ((version != null) && version.startsWith("1.4")) {
                useJDK14();
            } else {
                useJDK13();
            }
        }
        return JDK_VERSION;
    }

    public static void useJDK13() {
        JDK_VERSION = JDK_1_3;
    }

    public static void useJDK14() {
        JDK_VERSION = JDK_1_4;
    }

    public static void useJDK15() {
        JDK_VERSION = JDK_1_5;
    }

    public static boolean isJDK13() {
        return getJDKVersion() == JDK_1_3;
    }

    public static boolean isJDK14() {
        return getJDKVersion() == JDK_1_4;
    }

    public static boolean isJDK15() {
        return getJDKVersion() == JDK_1_5;
    }
}