001    /*
002      GRANITE DATA SERVICES
003      Copyright (C) 2011 GRANITE DATA SERVICES S.A.S.
004    
005      This file is part of Granite Data Services.
006    
007      Granite Data Services is free software; you can redistribute it and/or modify
008      it under the terms of the GNU Library General Public License as published by
009      the Free Software Foundation; either version 2 of the License, or (at your
010      option) any later version.
011    
012      Granite Data Services is distributed in the hope that it will be useful, but
013      WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014      FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015      for more details.
016    
017      You should have received a copy of the GNU Library General Public License
018      along with this library; if not, see <http://www.gnu.org/licenses/>.
019    */
020    
021    package org.granite.messaging.amf.io.util;
022    
023    import java.io.Serializable;
024    import java.lang.reflect.Field;
025    import java.lang.reflect.Modifier;
026    import java.lang.reflect.Proxy;
027    import java.util.ArrayList;
028    import java.util.List;
029    
030    /**
031     * @author Franck WOLFF
032     */
033    public class DefaultClassGetter implements ClassGetter {
034    
035        public Class<?> getClass(Object o) {
036            if (o == null)
037                return null;
038    
039            Class<?> clazz = o.getClass();
040            if (Proxy.isProxyClass(clazz))
041                clazz = clazz.getInterfaces()[0];
042            
043            if (Enum.class.isAssignableFrom(clazz) && clazz.isAnonymousClass() && Enum.class.isAssignableFrom(clazz.getSuperclass()))
044                    clazz = clazz.getSuperclass();
045    
046            return clazz;
047        }
048        
049        public boolean isEntity(Object o) {
050            return false;
051        }
052        
053        public Serializable getIdentifier(Object o) {
054            return null;
055        }
056        
057        public boolean isInitialized(Object owner, String propertyName, Object propertyValue) {
058            return true;
059        }
060        
061        public void initialize(Object owner, String propertyName, Object propertyValue) {
062        }
063    
064        public List<Object[]> getFieldValues(Object obj) {
065            return getFieldValues(obj, null);
066        }
067    
068        public List<Object[]> getFieldValues(Object obj, Object dest) {
069            return defaultGetFieldValues(obj, dest);
070        }
071        
072        public static List<Object[]> defaultGetFieldValues(Object obj, Object dest) {
073            List<Object[]> fieldValues = new ArrayList<Object[]>();
074            
075            // Merges field values
076            try {
077                Class<?> clazz = obj.getClass();
078                while (clazz != null) {
079                    Field[] fields = clazz.getDeclaredFields();
080                    for (Field field : fields) {
081                        if ((field.getModifiers() & Modifier.STATIC) != 0 
082                            || (field.getModifiers() & Modifier.FINAL) != 0 
083                            || (field.getModifiers() & Modifier.VOLATILE) != 0 
084                            || (field.getModifiers() & Modifier.NATIVE) != 0 
085                            || (field.getModifiers() & Modifier.TRANSIENT) != 0)
086                            continue;
087                        field.setAccessible(true);
088                        Object o = field.get(obj);
089                        if (dest != null) {
090                            Object d = field.get(dest);
091                            fieldValues.add(new Object[] { field, o, d });
092                        }
093                        else
094                            fieldValues.add(new Object[] { field, o });
095                    }
096                    clazz = clazz.getSuperclass();
097                }
098            }
099            catch (Exception e) {
100                throw new RuntimeException("Could not get entity fields ", e);
101            }
102            
103            return fieldValues;
104        }
105    }