001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2012 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 3 of the License, or (at your option) any later version.
010     *
011     * Sonar is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    package org.sonar.api.utils;
021    
022    import com.google.common.collect.Lists;
023    import org.apache.commons.lang.ClassUtils;
024    
025    import java.lang.reflect.Field;
026    import java.lang.reflect.Modifier;
027    import java.util.List;
028    
029    /**
030     * Add features missing in org.apache.commons.lang.reflect.FieldUtils
031     *
032     * @since 2.14
033     */
034    public final class FieldUtils2 {
035      private FieldUtils2() {
036      }
037    
038      /**
039       * Get accessible <code>Field</code> breaking scope if requested. Superclasses/interfaces are considered.
040       *
041       * @param clazz       the class to reflect, must not be null
042       * @param forceAccess whether to break scope restrictions using the <code>setAccessible</code> method.
043       *                    <code>False</code> only matches public fields.
044       */
045      public static List<Field> getFields(Class clazz, boolean forceAccess) {
046        List<Field> result = Lists.newArrayList();
047        Class c = clazz;
048        while (c != null) {
049          for (Field declaredField : c.getDeclaredFields()) {
050            if (!Modifier.isPublic(declaredField.getModifiers())) {
051              if (forceAccess) {
052                declaredField.setAccessible(true);//NOSONAR only works from sufficiently privileged code
053              } else {
054                continue;
055              }
056            }
057            result.add(declaredField);
058          }
059          c = c.getSuperclass();
060        }
061    
062        for (Object anInterface : ClassUtils.getAllInterfaces(clazz)) {
063          for (Field declaredField : ((Class) anInterface).getDeclaredFields()) {
064            result.add(declaredField);
065          }
066        }
067    
068        return result;
069      }
070    }