1/* 2 * Copyright (C) 2013 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 17package android.support.v4.text; 18 19import android.support.annotation.RequiresApi; 20import android.util.Log; 21 22import java.lang.reflect.InvocationTargetException; 23import java.lang.reflect.Method; 24import java.util.Locale; 25 26@RequiresApi(14) 27class ICUCompatIcs { 28 29 private static final String TAG = "ICUCompatIcs"; 30 31 private static Method sGetScriptMethod; 32 private static Method sAddLikelySubtagsMethod; 33 34 static { 35 try { 36 final Class<?> clazz = Class.forName("libcore.icu.ICU"); 37 if (clazz != null) { 38 sGetScriptMethod = clazz.getMethod("getScript", 39 new Class[]{ String.class }); 40 sAddLikelySubtagsMethod = clazz.getMethod("addLikelySubtags", 41 new Class[]{ String.class }); 42 } 43 } catch (Exception e) { 44 sGetScriptMethod = null; 45 sAddLikelySubtagsMethod = null; 46 47 // Nothing we can do here, we just log the exception 48 Log.w(TAG, e); 49 } 50 } 51 52 public static String maximizeAndGetScript(Locale locale) { 53 final String localeWithSubtags = addLikelySubtags(locale); 54 if (localeWithSubtags != null) { 55 return getScript(localeWithSubtags); 56 } 57 58 return null; 59 } 60 61 private static String getScript(String localeStr) { 62 try { 63 if (sGetScriptMethod != null) { 64 final Object[] args = new Object[] { localeStr }; 65 return (String) sGetScriptMethod.invoke(null, args); 66 } 67 } catch (IllegalAccessException e) { 68 // Nothing we can do here, we just log the exception 69 Log.w(TAG, e); 70 } 71 catch (InvocationTargetException e) { 72 // Nothing we can do here, we just log the exception 73 Log.w(TAG, e); 74 } 75 return null; 76 } 77 78 private static String addLikelySubtags(Locale locale) { 79 final String localeStr = locale.toString(); 80 try { 81 if (sAddLikelySubtagsMethod != null) { 82 final Object[] args = new Object[] { localeStr }; 83 return (String) sAddLikelySubtagsMethod.invoke(null, args); 84 } 85 } catch (IllegalAccessException e) { 86 // Nothing we can do here, we just log the exception 87 Log.w(TAG, e); 88 } 89 catch (InvocationTargetException e) { 90 // Nothing we can do here, we just log the exception 91 Log.w(TAG, e); 92 } 93 94 return localeStr; 95 } 96} 97