Unity 3D Post process game object with user properties

using UnityEngine;
using UnityEditor;
using System.Collections;

public class ModelPropertyProcessor : AssetPostprocessor {

    void OnPostprocessGameObjectWithUserProperties (GameObject go, string[] propNames, System.Object[] values) {

        for (int i = 0; i < propNames.Length; i++) {

            string propName = propNames[i];
            System.Object v = values[i];

            Debug.Log("Model "+go.name+" has Property: " + propName + " with value: " +v);

            if (propName == "UDP3DSMAX")
            {
                // max exports all props as single string. we must split by return char
                string[] lines = ((string)v).Split('\n');

                foreach (string line in lines)
                {
                    string prop = line.Trim();
                    Debug.Log (prop);
                    if (prop == "boxcollider")
                    {
                        go.AddComponent<BoxCollider>();
                    }

                    if (prop == "spherecollider")
                    {
                        go.AddComponent<SphereCollider>();
                    }

                    if (prop == "meshcollider")
                    {
                        go.AddComponent<MeshCollider>();
                    }

                    if (prop == "proxy")
                    {
                        go.renderer.enabled = false;
                    }

                    if (prop == "movable")
                    {
                        go.AddComponent<Rigidbody>();
                    }

        }

            }

        }
    }
}