com.prey.ReflectionsUtils.java Source code

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Here is the source code for com.prey.ReflectionsUtils.java

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/*******************************************************************************
 * Created by Carlos Yaconi
 * Copyright 2012 Fork Ltd. All rights reserved.
 * License: GPLv3
 * Full license at "/LICENSE"
 ******************************************************************************/
/**
 * 
 */
package com.prey;

import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.util.Log;

/**
 * @author Administrador
 * 
 */
public class ReflectionsUtils {

    private static final String ATTRIBUTE_CLASS = "className";

    /**
     * 
     */
    public ReflectionsUtils() {
        // TODO Auto-generated constructor stub
    }

    public static Class getJSONObjectClass(JSONObject object) {
        Class clazz = null;
        try {
            String className = (String) object.get(ATTRIBUTE_CLASS);
            clazz = Class.forName(className);

        } catch (JSONException e) {
            Log.e("Reflections Utils", "Ocurrio un error al obtener la clase del JSONObject");
        } catch (ClassNotFoundException e) {
            Log.e("Reflections Utils", "La clase que se intenta crear no Existe!");
        }

        return clazz;
    }

    public static Object JSONObjectToObject(JSONObject object) {
        Class clazz = ReflectionsUtils.getJSONObjectClass(object);
        try {
            return clazz.newInstance();
        } catch (IllegalAccessException e) {
            Log.e("Reflections Utils", "[Seguridad] Ocurrio un error al instanciar la clase " + clazz);
        } catch (InstantiationException e) {
            Log.e("Reflections Utils", "[Desconocido] Ocurrio un error al instanciar la clase " + clazz);
        }

        return null;
    }

    public static Object populateObject(JSONObject object) throws Exception {

        Object newObject = ReflectionsUtils.JSONObjectToObject(object);
        Field[] fields = newObject.getClass().getDeclaredFields();

        for (int i = 0; i < fields.length; i++) {
            Field f = fields[i];
            String setterName = "set" + f.getName().substring(0, 1).toUpperCase() + f.getName().substring(1);
            if (object.has(f.getName()))
                ReflectionsUtils.setProperty(setterName, newObject, object.get(f.getName()));
        }

        return newObject;
    }

    public static List<Object> populateListObject(JSONArray json) throws Exception {
        List<Object> result = new ArrayList<Object>();
        for (int i = 0; i < json.length(); i++) {
            result.add(ReflectionsUtils.populateObject(((JSONObject) json.get(i))));

        }
        return result;
    }

    public static void setProperty(String nameProperty, Object target, Object value) throws Exception {
        Class[] parameterTypes = { value.getClass() };
        Method method = target.getClass().getMethod(nameProperty, parameterTypes);
        if (method != null) {
            Object[] paraneters = { value };
            method.invoke(target, paraneters);
        }

    }

}