com.sun.jersey.server.linking.impl.FieldDescriptor Maven / Gradle / Ivy
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2010-2011 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* http://glassfish.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.jersey.server.linking.impl;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Utility class for working with class fields
* @author mh124079
*/
public class FieldDescriptor {
protected Field field;
FieldDescriptor(Field f) {
this.field = f;
}
public Object getFieldValue(Object instance) {
setAccessibleField(field);
Object value = null;
try {
value = field.get(instance);
} catch (IllegalArgumentException ex) {
Logger.getLogger(FieldDescriptor.class.getName()).log(Level.FINE, null, ex);
} catch (IllegalAccessException ex) {
Logger.getLogger(FieldDescriptor.class.getName()).log(Level.FINE, null, ex);
}
return value;
}
public String getFieldName() {
return field.getName();
}
protected static void setAccessibleField(final Field f) {
if (Modifier.isPublic(f.getModifiers()))
return;
AccessController.doPrivileged(new PrivilegedAction
© 2015 - 2024 Weber Informatics LLC | Privacy Policy