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This is a backport of OpenJFX 8 to run on Java 7.
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/*
 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package com.sun.glass.ui.lens;

import java.security.AccessController;
import java.security.PrivilegedAction;
import sun.util.logging.PlatformLogger;

final class LensLogger {

    private static final PlatformLogger logger = initLogger();

    private static PlatformLogger initLogger() {
        PlatformLogger logger = PlatformLogger.getLogger("lens");
        String levelString = AccessController.doPrivileged(
        new PrivilegedAction() {
            public String run() {
                return System.getProperty("log.lens", "SEVERE").toUpperCase();
            }
        });
        try {
            int level = PlatformLogger.SEVERE;
            switch (levelString) {
                case "OFF":
                    level = PlatformLogger.OFF;
                    break;
                case "SEVERE":
                    level = PlatformLogger.SEVERE;
                    break;
                case "WARNING":
                    level = PlatformLogger.WARNING;
                    break;
                case "INFO":
                    level = PlatformLogger.INFO;
                    break;
                case "CONFIG":
                    level = PlatformLogger.CONFIG;
                    break;
                case "FINE":
                    level = PlatformLogger.FINE;
                    break;
                case "FINER":
                    level = PlatformLogger.FINER;
                    break;
                case "FINEST":
                    level = PlatformLogger.FINEST;
                    break;
                case "ALL":
                    level = PlatformLogger.ALL;
                    break;
            }
            logger.setLevel(level);
        } catch (Exception e) {
            logger.setLevel(PlatformLogger.SEVERE);
        }
        return logger;
    }

    public static PlatformLogger getLogger() {
        return logger;
    }
}