1 /*
   2  * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.marlin;

  27 
  28 public final class MarlinUtils {
  29     // Marlin logger
  30     private static final sun.util.logging.PlatformLogger LOG;
  31 
  32     static {
  33         if (MarlinConst.USE_LOGGER) {
  34             LOG = sun.util.logging.PlatformLogger.getLogger("prism.marlin");
  35         } else {
  36             LOG = null;
  37         }
  38     }
  39 
  40     private MarlinUtils() {
  41         // no-op
  42     }
  43 
  44     public static void logInfo(final String msg) {
  45         if (MarlinConst.USE_LOGGER) {
  46             LOG.info(msg);
  47         } else if (MarlinConst.ENABLE_LOGS) {
  48             System.out.print("INFO: ");
  49             System.out.println(msg);
  50         }
  51     }
  52 
  53     public static void logException(final String msg, final Throwable th) {
  54         if (MarlinConst.USE_LOGGER) {
  55             LOG.warning(msg, th);
  56         } else if (MarlinConst.ENABLE_LOGS) {
  57             System.out.print("WARNING: ");
  58             System.out.println(msg);
  59             th.printStackTrace(System.err);
  60         }
  61     }
  62 
  63     // From sun.awt.util.ThreadGroupUtils
  64 
  65     /**
  66      * Returns a root thread group.
  67      * Should be called with {@link sun.security.util.SecurityConstants#MODIFY_THREADGROUP_PERMISSION}
  68      *
  69      * @return a root {@code ThreadGroup}
  70      */
  71     public static ThreadGroup getRootThreadGroup() {
  72         ThreadGroup currentTG = Thread.currentThread().getThreadGroup();
  73         ThreadGroup parentTG = currentTG.getParent();
  74         while (parentTG != null) {
  75             currentTG = parentTG;
  76             parentTG = currentTG.getParent();
  77         }
  78         return currentTG;
  79     }
  80 
  81     // JavaFX specific Cleaner for Marlin-FX:
  82     // Module issue with jdk.internal.ref.Cleaner
  83     private final static java.lang.ref.Cleaner cleaner
  84         = java.lang.ref.Cleaner.create();
  85 
  86     static java.lang.ref.Cleaner getCleaner() {
  87         return cleaner;
  88     }
  89 /*
  90     static jdk.internal.ref.Cleaner getCleaner() {
  91         return jdk.internal.ref.CleanerFactory.cleaner();
  92     }
  93 */
  94 }
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