1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package libcore.icu; 18 19 public final class NativeIDN { 20 public static String toASCII(String s, int flags) { 21 return convert(s, flags, true); 22 } 23 24 public static String toUnicode(String s, int flags) { 25 try { 26 return convert(s, flags, false); 27 } catch (IllegalArgumentException ex) { 28 // The RI documentation explicitly states that this method can't fail. 29 // ICU4C disagrees, as does the RI in practice. 30 // The RI just returns the input string if it can't 31 return s; 32 } 33 } 34 35 private static String convert(String s, int flags, boolean toAscii) { 36 if (s == null) { 37 throw new NullPointerException("s == null"); 38 } 39 return convertImpl(s, flags, toAscii); 40 } 41 private static native String convertImpl(String s, int flags, boolean toAscii); 42 43 private NativeIDN() {} 44 } 45
