jdk/src/java.base/share/classes/sun/util/locale/provider/ResourceBundleProviderSupport.java
changeset 42418 4330273ee80c
parent 42417 8e1573096052
parent 42401 925e4d87ebac
child 42419 5c71ea43933b
--- a/jdk/src/java.base/share/classes/sun/util/locale/provider/ResourceBundleProviderSupport.java	Mon Dec 05 15:08:24 2016 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,149 +0,0 @@
-/*
- * Copyright (c) 2015, 2016, 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 sun.util.locale.provider;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.UncheckedIOException;
-import java.lang.reflect.Constructor;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Modifier;
-import java.lang.reflect.Module;
-import java.security.AccessController;
-import java.security.PrivilegedAction;
-import java.util.PropertyResourceBundle;
-import java.util.ResourceBundle;
-
-/**
- * ResourceBundleProviderSupport provides convenience methods for loading
- * resource bundles.
- */
-public class ResourceBundleProviderSupport {
-    /**
-     * Loads a {@code ResourceBundle} of the given {@code bundleName} local to
-     * the given {@code module}.
-     *
-     * @apiNote
-     * {@link Class#forName(Module, String)} does a stack-based permission check.
-     * Caller of this method is responsible for doing an appropriate permission
-     * on behalf of the caller before calling this method.
-     *
-     * @param module     the module from which the {@code ResourceBundle} is loaded
-     * @param bundleName the bundle name for the {@code ResourceBundle} class,
-     *                   such as "com.example.app.MyResources_fr"
-     * @return the {@code ResourceBundle}, or null if no {@code ResourceBundle} is found
-     * @throws SecurityException
-     *         if a security manager exists, it denies loading the class given by
-     *         {@code bundleName} from the given {@code module}.
-     *         If the given module is "java.base", this method will not do security check.
-     * @throws NullPointerException
-     *         if {@code module} or {@code bundleName) is null
-     * @see Class#forName(Module, String)
-     */
-    public static ResourceBundle loadResourceBundle(Module module, String bundleName)
-    {
-        Class<?> c = Class.forName(module, bundleName);
-        if (c != null && ResourceBundle.class.isAssignableFrom(c)) {
-            try {
-                @SuppressWarnings("unchecked")
-                Class<ResourceBundle> bundleClass = (Class<ResourceBundle>) c;
-                Constructor<ResourceBundle> ctor = bundleClass.getConstructor();
-                if (!Modifier.isPublic(ctor.getModifiers())) {
-                    return null;
-                }
-                // java.base may not be able to read the bundleClass's module.
-                PrivilegedAction<Void> pa1 = () -> { ctor.setAccessible(true); return null; };
-                AccessController.doPrivileged(pa1);
-                try {
-                    return ctor.newInstance((Object[]) null);
-                } catch (InvocationTargetException e) {
-                    uncheckedThrow(e);
-                } catch (InstantiationException | IllegalAccessException e) {
-                    throw new InternalError(e);
-                }
-            } catch (NoSuchMethodException e) {
-            }
-        }
-        return null;
-    }
-
-    @SuppressWarnings("unchecked")
-    private static <T extends Throwable> void uncheckedThrow(Throwable t) throws T {
-       if (t != null)
-            throw (T)t;
-       else
-            throw new Error("Unknown Exception");
-    }
-
-    /**
-     * Loads properties of the given {@code bundleName} local to the given
-     * {@code module} and returns a {@code ResourceBundle} produced from the
-     * loaded properties.
-     *
-     * @apiNote This method is intended for internal use.  Need to refactor.
-     *
-     * @param module     the module from which the properties are loaded
-     * @param bundleName the bundle name of the properties,
-     *                   such as "com.example.app.MyResources_de"
-     * @return the {@code ResourceBundle} produced from the loaded properties,
-     *         or null if no properties are found
-     * @see PropertyResourceBundle
-     */
-    public static ResourceBundle loadPropertyResourceBundle(Module module, String bundleName)
-            throws IOException
-    {
-        String resourceName = toResourceName(bundleName, "properties");
-        if (resourceName == null) {
-            return null;
-        }
-
-        PrivilegedAction<InputStream> pa = () -> {
-            try {
-                return module.getResourceAsStream(resourceName);
-            } catch (IOException e) {
-                throw new UncheckedIOException(e);
-            }
-        };
-        try (InputStream stream = AccessController.doPrivileged(pa)) {
-            if (stream != null) {
-                return new PropertyResourceBundle(stream);
-            } else {
-                return null;
-            }
-        } catch (UncheckedIOException e) {
-            throw e.getCause();
-        }
-    }
-
-    private static String toResourceName(String bundleName, String suffix) {
-        if (bundleName.contains("://")) {
-            return null;
-        }
-        StringBuilder sb = new StringBuilder(bundleName.length() + 1 + suffix.length());
-        sb.append(bundleName.replace('.', '/')).append('.').append(suffix);
-        return sb.toString();
-    }
-}