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
021package org.granite.messaging.amf.io.util;
022
023import java.io.Serializable;
024import java.lang.reflect.Field;
025import java.lang.reflect.Modifier;
026import java.lang.reflect.Proxy;
027import java.util.ArrayList;
028import java.util.List;
029
030/**
031 * @author Franck WOLFF
032 */
033public 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}