/*
* 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);
}
}