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1 /* |
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2 * $HeadURL$ |
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3 * $Revision$ |
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4 * $Date$ |
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5 * |
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6 * ==================================================================== |
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7 * |
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8 * Licensed to the Apache Software Foundation (ASF) under one or more |
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9 * contributor license agreements. See the NOTICE file distributed with |
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10 * this work for additional information regarding copyright ownership. |
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11 * The ASF licenses this file to You under the Apache License, Version 2.0 |
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12 * (the "License"); you may not use this file except in compliance with |
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13 * the License. You may obtain a copy of the License at |
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14 * |
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15 * http://www.apache.org/licenses/LICENSE-2.0 |
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16 * |
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17 * Unless required by applicable law or agreed to in writing, software |
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18 * distributed under the License is distributed on an "AS IS" BASIS, |
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19 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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20 * See the License for the specific language governing permissions and |
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21 * limitations under the License. |
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22 * ==================================================================== |
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23 * |
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24 * This software consists of voluntary contributions made by many |
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25 * individuals on behalf of the Apache Software Foundation. For more |
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26 * information on the Apache Software Foundation, please see |
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27 * <http://www.apache.org/>. |
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28 * |
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29 */ |
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30 |
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31 package ch.boye.httpclientandroidlib.client.utils; |
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32 |
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33 import java.lang.reflect.InvocationTargetException; |
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34 import java.lang.reflect.Method; |
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35 |
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36 import ch.boye.httpclientandroidlib.annotation.Immutable; |
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37 |
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38 /** |
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39 * Uses the java.net.IDN class through reflection. |
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40 * |
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41 * @since 4.0 |
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42 */ |
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43 @Immutable |
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44 public class JdkIdn implements Idn { |
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45 private final Method toUnicode; |
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46 |
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47 /** |
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48 * |
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49 * @throws ClassNotFoundException if java.net.IDN is not available |
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50 */ |
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51 public JdkIdn() throws ClassNotFoundException { |
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52 Class<?> clazz = Class.forName("java.net.IDN"); |
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53 try { |
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54 toUnicode = clazz.getMethod("toUnicode", String.class); |
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55 } catch (SecurityException e) { |
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56 // doesn't happen |
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57 throw new IllegalStateException(e.getMessage(), e); |
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58 } catch (NoSuchMethodException e) { |
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59 // doesn't happen |
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60 throw new IllegalStateException(e.getMessage(), e); |
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61 } |
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62 } |
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63 |
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64 public String toUnicode(String punycode) { |
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65 try { |
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66 return (String) toUnicode.invoke(null, punycode); |
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67 } catch (IllegalAccessException e) { |
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68 throw new IllegalStateException(e.getMessage(), e); |
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69 } catch (InvocationTargetException e) { |
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70 Throwable t = e.getCause(); |
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71 throw new RuntimeException(t.getMessage(), t); |
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72 } |
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73 } |
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74 |
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75 } |