Synnefo » Pithos Web Client

/*

 * Copyright (c) 2011 Greek Research and Technology Network

 */

package gr.grnet.pithos.web.client.foldertree;

import com.google.gwt.http.client.Response;

import com.google.gwt.i18n.client.DateTimeFormat;

import com.google.gwt.json.client.JSONArray;

import com.google.gwt.json.client.JSONNumber;

import com.google.gwt.json.client.JSONObject;

import com.google.gwt.json.client.JSONParser;

import com.google.gwt.json.client.JSONString;

import com.google.gwt.json.client.JSONValue;

import gr.grnet.pithos.web.client.rest.resource.FolderResource;

import java.util.Date;

public abstract class Resource {

    protected static String unmarshallString(JSONObject obj, String key){

        if(obj.get(key) != null) {

            JSONString s = obj.get(key).isString();

            if(s != null)

                return s.stringValue();

        }

        return null;

    }

    protected static int unmarshallInt(JSONObject obj, String key){

        if(obj.get(key) != null)

            if(obj.get(key).isNumber() != null)

                return (int) obj.get(key).isNumber().getValue();

        return -1;

    }

    protected static long unmarshallLong(JSONObject obj, String key){

        if(obj.get(key) != null) {

            JSONNumber value = obj.get(key).isNumber();

            if(value != null)

                return (long) value.doubleValue();

        }

        return -1;

    }

    protected static boolean unmarshallBoolean(JSONObject obj, String key){

        if(obj.get(key) != null)

            if(obj.get(key).isBoolean() != null)

                return obj.get(key).isBoolean().booleanValue();

        return false;

    }

    protected static Date unmarshallDate(JSONObject obj, String key){

        if(obj.get(key) != null) {

            JSONString s = obj.get(key).isString();

            if (s != null)

                return DateTimeFormat.getFormat("yyyy-MM-dd'T'HH:mm:ss").parse(s.stringValue());

        }

        return null;

    }

    public static native String getDate(Long ms)/*-{

        return (new Date(ms)).toUTCString();

    }-*/;

    public abstract String getLastModifiedSince();

    public static <T> T createFromResponse(Class<T> aClass, Response response, T result) {

        if (aClass.equals(AccountResource.class)) {

            result = (T) AccountResource.createFromResponse(response);

        }

        else if (aClass.equals(Folder.class)) {

            result = (T) Folder.createFromResponse(response, (Folder) result);

        }

        else if (aClass.equals(File.class)) {

            result = (T) File.createFromResponse(response, (File) result);

        }

        return result;

    }

}