/*
 * Copyright (c) 2012, 2020, 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.lang.reflect.InvocationTargetException;
import java.text.DecimalFormat;
import java.util.ServiceConfigurationError;
import java.util.spi.LocaleServiceProvider;

LocaleProviderAdapter implementation for the host locale data. Currently it is only implemented on Windows Vista or later.
Author:Naoto Sato
/** * LocaleProviderAdapter implementation for the host locale data. * Currently it is only implemented on Windows Vista or later. * * @author Naoto Sato */
public class HostLocaleProviderAdapter extends AuxLocaleProviderAdapter {
Returns the type of this LocaleProviderAdapter
/** * Returns the type of this LocaleProviderAdapter */
@Override public LocaleProviderAdapter.Type getAdapterType() { return LocaleProviderAdapter.Type.HOST; } @Override @SuppressWarnings("unchecked") protected <P extends LocaleServiceProvider> P findInstalledProvider(final Class<P> c) { try { return (P)Class.forName( "sun.util.locale.provider.HostLocaleProviderAdapterImpl") .getMethod("get" + c.getSimpleName(), (Class<?>[]) null) .invoke(null, (Object[]) null); } catch (ClassNotFoundException | NoSuchMethodException ex) { // permissible exceptions as platform may not support host adapter return null; } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException ex) { throw new ServiceConfigurationError( "Host locale provider cannot be located.", ex); } }
Utility to make the decimal format specific to integer, called by the platform dependent adapter implementations.
Params:
  • df – A DecimalFormat object
Returns:The same DecimalFormat object in the argument, modified to allow integer formatting/parsing only.
/** * Utility to make the decimal format specific to integer, called * by the platform dependent adapter implementations. * * @param df A DecimalFormat object * @return The same DecimalFormat object in the argument, modified * to allow integer formatting/parsing only. */
static DecimalFormat makeIntegerFormatter(DecimalFormat df) { df.setMaximumFractionDigits(0); df.setDecimalSeparatorAlwaysShown(false); df.setParseIntegerOnly(true); return df; } }