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1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package com.sun.xml.internal.ws.spi.db; |
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27 |
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28 import java.lang.reflect.Field; |
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29 import java.security.AccessController; |
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30 import java.security.PrivilegedActionException; |
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31 import java.security.PrivilegedExceptionAction; |
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32 |
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33 |
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34 /** |
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35 * FieldGetter gets the value of a field from an instance. |
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36 * |
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37 * @author shih-chang.chen@oracle.com |
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38 * @exclude |
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39 */ |
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40 public class FieldGetter extends PropertyGetterBase { |
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41 |
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42 protected Field field; |
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43 |
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44 public FieldGetter(Field f) { |
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45 field = f; |
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46 type = f.getType(); |
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47 } |
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48 |
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49 public Field getField() { |
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50 return field; |
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51 } |
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52 |
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53 static class PrivilegedGetter implements PrivilegedExceptionAction { |
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54 private Object value; |
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55 private Field field; |
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56 private Object instance; |
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57 public PrivilegedGetter(Field field, Object instance) { |
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58 super(); |
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59 this.field = field; |
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60 this.instance = instance; |
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61 } |
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62 public Object run() throws IllegalAccessException { |
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63 if (!field.isAccessible()) { |
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64 field.setAccessible(true); |
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65 } |
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66 value = field.get(instance); |
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67 return null; |
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68 } |
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69 } |
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70 |
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71 public Object get(final Object instance) { |
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72 if (field.isAccessible()) { |
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73 try { |
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74 return field.get(instance); |
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75 } catch (Exception e) { |
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76 // TODO Auto-generated catch block |
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77 e.printStackTrace(); |
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78 } |
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79 } else { |
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80 PrivilegedGetter privilegedGetter = new PrivilegedGetter(field, instance); |
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81 try { |
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82 AccessController.doPrivileged(privilegedGetter); |
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83 } catch (PrivilegedActionException e) { |
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84 // TODO Auto-generated catch block |
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85 e.printStackTrace(); |
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86 } |
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87 return privilegedGetter.value; |
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88 } |
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89 return null; |
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90 } |
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91 |
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92 public <A> A getAnnotation(Class<A> annotationType) { |
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93 Class c = annotationType; |
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94 return (A) field.getAnnotation(c); |
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95 } |
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96 } |