jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/ws/spi/db/FieldGetter.java@9c07ef4934dd

     1 /*

     2  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    26 package com.sun.xml.internal.ws.spi.db;

    28 import java.lang.reflect.Field;

    29 import java.security.AccessController;

    30 import java.security.PrivilegedActionException;

    31 import java.security.PrivilegedExceptionAction;

    34 /**

    35  * FieldGetter gets the value of a field from an instance.

    36  *

    37  * @author shih-chang.chen@oracle.com

    38  * @exclude

    39  */

    40 public class FieldGetter extends PropertyGetterBase {

    42     protected Field field;

    44     public FieldGetter(Field f) {

    45         field = f;

    46         type = f.getType();

    47     }

    49     public Field getField() {

    50         return field;

    51     }

    53     static class PrivilegedGetter implements PrivilegedExceptionAction {

    54         private Object value;

    55         private Field  field;

    56         private Object instance;

    57         public PrivilegedGetter(Field field, Object instance) {

    58             super();

    59             this.field = field;

    60             this.instance = instance;

    61         }

    62         public Object run() throws IllegalAccessException {

    63             if (!field.isAccessible()) {

    64                 field.setAccessible(true);

    65             }

    66             value = field.get(instance);

    67             return null;

    68         }

    69     }

    71     public Object get(final Object instance) {

    72         if (field.isAccessible()) {

    73             try {

    74                 return field.get(instance);

    75             } catch (Exception e) {

    76                 // TODO Auto-generated catch block

    77                 e.printStackTrace();

    78             }

    79         } else {

    80             PrivilegedGetter privilegedGetter = new PrivilegedGetter(field, instance);

    81             try {

    82                 AccessController.doPrivileged(privilegedGetter);

    83             } catch (PrivilegedActionException e) {

    84                 // TODO Auto-generated catch block

    85                 e.printStackTrace();

    86             }

    87             return privilegedGetter.value;

    88         }

    89         return null;

    90     }

    92     public <A> A getAnnotation(Class<A> annotationType) {

    93         Class c = annotationType;

    94         return (A) field.getAnnotation(c);

    95     }

    96 }

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