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/* * Copyright (c) 2005, 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. */ /* ******************************************************************************* * (C) Copyright IBM Corp. 1996-2005 - All Rights Reserved                     * *                                                                             * * The original version of this source code and documentation is copyrighted   * * and owned by IBM, These materials are provided under terms of a License     * * Agreement between IBM and Sun. This technology is protected by multiple     * * US and International patents. This notice and attribution to IBM may not    * * to removed.                                                                 * ******************************************************************************* */ package sun.text.normalizer; import java.io.InputStream;import java.net.URL;import java.security.AccessController;import java.security.PrivilegedAction;import java.util.MissingResourceException; /** * Provides access to ICU data files as InputStreams.  Implements security checking. */public final class ICUData {     private static InputStream getStream(final Class root, final String resourceName, boolean required) {        InputStream i = null;         if (System.getSecurityManager() != null) {            i = (InputStream)AccessController.doPrivileged(new PrivilegedAction() {                    public Object run() {                        return root.getResourceAsStream(resourceName);                    }                });        } else {            i = root.getResourceAsStream(resourceName);        }         if (i == null && required) {            throw new MissingResourceException("could not locate data", root.getPackage().getName(), resourceName);        }        return i;    }     /*     * Convenience override that calls getStream(ICUData.class, resourceName, false);     */    public static InputStream getStream(String resourceName) {        return getStream(ICUData.class, resourceName, false);    }     /*     * Convenience method that calls getStream(ICUData.class, resourceName, true).     */    public static InputStream getRequiredStream(String resourceName) {        return getStream(ICUData.class, resourceName, true);    }}