October 2013 ~ Technology Mashup

Wednesday, October 30, 2013

Freebase Resource to RDF

import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.rdf.model.ModelFactory;
import com.hp.hpl.jena.rdf.model.Property;
import com.hp.hpl.jena.rdf.model.Resource;
import java.io.FileInputStream;
import java.util.Properties;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
public class RdfSample {
  public static Properties properties = new Properties();
  public static void main(String[] args) {
    try {
      properties.load(new FileInputStream("freebase.properties"));
      String serviceURL = "https://www.googleapis.com/freebase/v1/rdf";
      HttpClient httpclient = new DefaultHttpClient();
      String topicId = "/m/02h40lc";
      String url = serviceURL + topicId + "?key=" + properties.get("API_KEY");
      HttpGet request = new HttpGet(url);
      HttpResponse httpResponse = httpclient.execute(request);
      Model model = ModelFactory.createDefaultModel();
      model.read(httpResponse.getEntity().getContent(), null, "TURTLE");
      Resource topic = model.getResource("http://rdf.freebase.com/ns/" + topicId.substring(1).replace('/','.'));
      Property labelProperty = model.getProperty("http://www.w3.org/2000/01/rdf-schema#label");
      System.out.println(topic.getProperty(labelProperty).getString());
    } catch (Exception ex) {
      ex.printStackTrace();
    }
  }
}

Node.js

http://nodejs.org

Cannot find module Error
cmd>npm install <name_of_module>
ie: ejs, express, formidable

Setup App
cmd>node server.js

App Engine SDK - Google Engine

com.google.apphosting.utils.config.AppEngineConfigException: Invalid configuration

include the following chunk in your appengine-web.xml:

<threadsafe>true</threadsafe>

It is mandatory to explicitly set expectations whether your application is designed in a thread-safe way.

Source:
http://stackoverflow.com/questions/13880528/running-appengine-with-eclipse

22 Useful Online Chart & Graph Generators

Have you ever encounter situations where you need to create a simple yet good-looking chart, graphs or diagrams and all you have is your browser? Charts are good and effective way to show relationship between entities but sometimes creating one can be pretty challenging especially when your favorite word processing software is not around.
online chart generators

In today’s post, we want to highlight some of the best web services that allow you to create various charts and graphs online on-the-fly. Most of them are easy to use and don’t you even worry about the design. Your output will be as good as what you see in the screen shots below. Full list after jump.

Rich Chart Live
Create enjoyable and captivating Flash Charts from your web browser.

DIY Chart
DIY (Do it yourself) Chart is a Web-based, simple and powerful online tool to create interactive charts and graphs from static or dynamic data which may be generated using any scripting language.

Online Chart Generator
The best online chart and graph generator tool, Generate amazing 3D graphs instantly in few seconds.

Chartle.net
Chartle.net tears down the complexity of online visualizations – offers simplicity, ubiquity and interactivity online chart generator.

ChartGo
ChartGo allows users to create charts online quickly and simply paste your data in the chart data area and hit the create chart button.

Create A Graph
You can really make a detailed graph at Create A Graph and see how it might look, and then print, download, or email what you’ve created.

JS Charts
JS Charts is a JavaScript chart generator that requires little or no coding. JS Charts allows you to easily create charts in different templates like bar charts, pie charts or simple line graphs.

Pie Chart Tool
Pie Chart Tool creates a pie charts based on the data you provide. All you have to do is to type your data and the name of the categories.

Piecolor
Piecolor is a tool that creates pie chart with colors very easily.

Hohli Charts
Hohli Charts lets you dynamically generate charts.

CSS Chart Generator
CSS Chart Generator generates your charts on the fly.

CHARTPART
Google chart API and chart generator tool.

Chart Maker
Generator for the Chart Server API.

Google Chart Tools
The Google Chart Tools enable adding live charts to any web page.

amCharts Visual Editor
This editor allows you to use amCharts as a web service. This means that all you need to do is to configure the chart and paste the generated HTML code to your HTML page.

Pie Chart Maker
This free tool outputs your pie chart as an image that you can save to your computer.

ChartGizmo
With your free account from ChartGizmo you can now create charts for your website, blog and social network profiles.

Onlinecharttool.com
On Onlinecharttool.com you can design and share your own graphs online and for free.

OWTChart Generator
The OWTChart Generator is an on-line tool to be used to produce charts. A GIF image of the chart that you specified will be displayed on the screen.

Highcharts
Highcharts is a charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application. Highcharts currently supports line, spline, area, areaspline, column, bar, pie and scatter chart types.

iCharts
iCharts is a web-services company that makes data publishing and distribution simple.

Google Chart Generator
Create a Google chart in seconds!

Source:
http://www.hongkiat.com/blog/22-useful-chart-graph-diagram-generators/

SPARQL in Android

Using ARQoid for Android-based SPARQL Query Execution

I was recently asked about the SPARQL support in Sparql Droid and whether it could serve as a way for other Android applications to execute SPARQL queries against remote data sources. It could be used in this way but there is a simpler alternative I’d like to discuss here.

On the Android platform it is actually quite easy to execute SPARQL against remote SPARQL endpoints, RDF data and local models. The heavy lifting is handled by Androjena’s ARQoid, an Android-centric port of HP’s Jena ARQ engine.
Both engines (the original and the port) do a great job of simplifying the execution of SPARQL queries and consumption of the resulting data. In this post I’ll go through a simple example of using ARQoid. Note that all the code being shown here is available for download. This post is based specifically on the queryRemoteSparqlEndpoint() method in the com.monead.androjena.demo.arqoid.SparqlExamples class.

Setup

To begin, some environment setup needs to be done in order to have a properly configured Android project ready to use ARQoid.
First, obtain the ARQoid JAR and its dependencies. This is easily accomplished using the download page on the ARQoid Wiki and obtaining the latest ARQoid ZIP file. Unzip the downloaded archive. Since I’m discussing an Android application I’d expect that you would have created an Android project and that it contains a libs directory where the JAR files should be placed.
Second, add the JAR files to the classpath for your Android project. I use the ADT plugin for Eclipse to do Android development. So to add the JARs to my project I choose the Project menu item, select Properties, choose Build Path, select the Libraries tab, click the Add JARs… button, navigate to the libs directory, select the JAR files and click OK on the open dialogs.
Third, setup a minimal Android project. The default layout, with a small change to its definition will work fine.

Overview

Now we are ready to write the code that uses ARQoid to access some data. For this first blog entry I’ll focus on a trivial query against a SPARQL endpoint. There would be some small differences if we wanted to query a local model or a remote data set. Those will be covered in follow-on entries.
Here is a list of the ARQoid classes we will be using for this initial example:

com.hp.hpl.jena.query.Query – represents the query being executed
com.hp.hpl.jena.query.Syntax – represents the query syntaxes supported by ARQoid
com.hp.hpl.jena.query.QueryFactory – creates a Query instance based on supplied parameters such as the query string and syntax definition
com.hp.hpl.jena.query.QueryExecution – provides the service to execute the query
com.hp.hpl.jena.query.QueryExecutionFactory – creates a QueryExecution instance based on supplied parameters such as a Query instance and SPARQL endpoint URI
com.hp.hpl.jena.query.ResultSet – represents the returned data and metadata associated with the executed query
com.hp.hpl.jena.query.QuerySolution – represents one row of data within the ResultSet.

We’ll use these classes to execute a simple SPARQL query that retrieves some data associated with space exploration. Talis provides an endpoint that we can use to access some interesting space exploration data. The endpoint is located at http://api.talis.com/stores/space/services/sparql.
The query we will execute is:

SELECT ?dataType ?data
WHERE {
  <http://nasa.dataincubator.org/launch/1961-012> ?dataType ?data.
}

This query will give us a little information about Vostok 1 launched by the USSR in 1961.

Create the Query instance

We begin by creating the Query instance using the QueryFactory.

// Create a Query instance
Query query = QueryFactory.create(queryString, Syntax.syntaxARQ);

This code assumes that the query given earlier has been assigned to the String variable queryString

Create the QueryExecution instance

We next create a QueryExecution using the QueryExecutionFactory.

// This query uses an external SPARQL endpoint for processing
// This is the syntax for that type of query
QueryExecution qe = QueryExecutionFactory.sparqlService(sparqlEndpointUri, query);

This code assumes that the Talis endpoint mentioned above has been assigned to the String variable sparqlEndpointUri.

Execute the query and obtain the ResultSet instance

We are now ready to actually execute the query and obtain the ResultSet instance.

// Execute the query and obtain results
ResultSet resultSet = qe.execSelect();

The resultSet variable now provides us access to the query results.

Retrieve the column names

A useful piece of metadata in the ResultSet instance is the list of column names. These will be based on the information requested in the SELECT clause. ARQoid can return them as a List<String>.

// Get the column names (the aliases supplied in the SELECT clause)
List<String> columnNames = resultSet.getResultVars();

The columnNames List will contain the aliases given in the SELECT clause.

Iterate through the resulting rows

We can now iterate through the resulting rows, asking for each row’s data which is represented as a QuerySolution instance.

// Iterate through all resulting rows
while (resultSet.hasNext()) {
  // Get the next result row
  QuerySolution solution = resultSet.next();

The solution variable will contain the current result row’s data.

Obtain the data for a row and column

To actually access the data you can request a specific column name from the QuerySolution instance. However, you need to know whether the data is null, a literal value or a URI. The following code performs the necessary tests and then prints the data to the standard output (in the downloadable code it will be presented on the Android device’s screen).

// Data value will be null if optional and not present
if (solution.get(var) == null) {
  System.out.println("{null}");
// Test whether the returned value is a literal value
} else if (solution.get(var).isLiteral()) {
  System.out.println (solution.getLiteral(var).toString());
// Otherwise the returned value is a URI
} else {
  System.out.println(solution.getResource(var).getURI());
}

From the code, above, you can see that in order to access the basic data value you use the get(String) method which expects the column name to be passed. This will return null if there is no data associated with this row and column. If there is a value, the method isLiteral() may be called to test whether the data is a literal. If it is not than it will likely be a URI. The URI can be accessed by calling the getResource(String) method, passing the column name, and calling the getURI() method on that value.

Close the QueryExecution instance

The last step is important. The QueryExecution instance should be cleaned up by calling its close() method.

// Important - free up resources used running the query
qe.close();

These are the basic steps you need to carry out in order to execute a SPARQL query against a SPARQL endpoint using ARQoid. Here is a screen shot of the Android emulator executing the example just covered.

ARQoid demo running in the Android emulator example screenshot

Notes

A few other items for completeness. First, remember to add the INTERNET permission to your Android manifest (<uses-permission android:name=”android.permission.INTERNET”/>). Failure to do so will lead to an ARQoid failure when it tries to access the remote endpoint. The stack trace will indicate a failure to access the URI – it won’t mention that there is a permission issue.
Also, depending on your query, you may be trying to access a lot of data which could be time consuming and also could cause issues with small memory devices. You may limit the number of rows returned and set a starting row for the results. This allows you to create a sliding window in your application by only pulling a few results and then allowing the user to ask for more. These values are set on the Query instance. Once you have the Query from the QueryFactory you can use these methods.

// Limit the number of results returned
// Setting the limit is optional - default is unlimited
query.setLimit(10);

// Set the starting record for results returned
// Setting the limit is optional - default is 1 (and it is 1-based)
query.setOffset(11);

The limit and offset given above would cause ARQoid to return 10 records, starting with the 11th one found. If there were fewer than 11 results then no records would be returned.

Conclusion

Hopefully if you are trying to use ARQoid this will give you a quick template to leverage the basic features of the engine. In the future I’ll expand on this by adding other data sources as well as using the URIs returned by the query to create a richer result for the user.
Remember that you may download the sample code if you want to see the working Android demonstration application described here. Also, you can install Sparql Droid which contains a variety of sample SPARQL queries that use the local model, SPARQL endpoints, RDF data sources as well as demonstrating federated queries.
If you have questions or comments about this topic please add them to this post or send them to me via my contact page.

Source:
http://monead.com/blog/?p=1420
http://answers.semanticweb.com/questions/21688/running-sparql-queries-on-android
http://code.google.com/p/android-sparql/wiki/Deploying_a_SPARQL_Endpoint_and_Populating_the_triple_store
http://oro.open.ac.uk/32335/1/

Android Development

Error:

The type java.lang.Object cannot be resolved. It is indirectly referenced 
from required .class files

Solution:

Make sure that you have a valid JRE or JDK defined in the Java Build 
Path of your project. Right-click on your project, select Properties... 
and then Java Build Path.

`Mount SD Card in Emulator`


Goto the Android Virtual device manager 
click New for create new Vitual device
Add Name and choose your package 
Under hardware you just click New Button and then pop new Window
After select SdCard support in drop down list near Property
finally you have gotten emulator with SDCard support


INSTALL_FAILED_MISSING_SHARED_LIBRARY

error with Google Maps for Android:


Install Google map APIs.  This can be done in Eclispe 
Windows/Android SDK and AVD Manager -> Available Packages -> Third
 Party Add-ons -> Google Inc. -> Google APIs by Google Inc., 
Android API X
From command line create new AVD.  This can be done by listing
targets (android list targets), then android create  avd -n
new_avd_api_233 -t "Google Inc.:Google APIs:X"
Then create AVD (Android Virtual Device) in Eclipse Windows/Android
SDK and AVD Manager -> New... -> (Name: new_avd_X, Target: Google
APIs (Google Inc.) - API Level X)



IMPORTANT : You must create your AVD with Target as Google APIs (Google Inc.) otherwise it will again failed. 
Create Android Project in Eclipse File/New/Android Project and
select Google APIs Build Target.
add <uses-library android:name="com.google.android.maps" />
between <application> </application> tags.
Run Project as Android Application.
 

Unable to create Android Virtual Device

CPU/ABI says "No system images installed for this target". You need to install a system images.


In the Android SDK Manager check that you have installed "ARM EABI 
v7a System Image" (for each Android version from 4.0 and on you have to 
install a system image to be able to run a virtual device)

In your case only ARM system image exsits (Android 4.2). If you were 
running an older version, Intel has provided System Images (Intel x86 
ATOM). You can check on the internet to see the comparison in 
performance between both.

In my case (see image below) I haven't installed a System Image for 
Android 4.2, whereas I have installed ARM and Intel System Images for 
4.1.2

As long as I don't install the 4.2 System Image I would have the same problem as you.

UPDATE : This recent article Speeding Up the Android Emaulator on Intel Architectures explains how to use/install correctly the intel system images to speed up the emulator.

EDIT/FOLLOW UP

What I show in the picture is for Android 4.2, as it was the original question, but is true for every versions of Android.

Of course (as @RedPlanet said), if you are developing for MIPS CPU devices you have to install the "MIPS System Image".

Finally, as @SeanJA said, you have to restart eclipse to see the new installed images. But for me, I always restart a 
software which I updated to be sure it takes into account all the modifications, and I assume it is a good practice to do so.  






http://stackoverflow.com/questions/13488419/unable-to-create-android-virtual-device

Multi languages string

Once you’ve decided on the languages you will support, create the resource subdirectories and string resource files. For example:
MyProject/ res/
values/ strings.xml
values-es/ strings.xml
values-fr/ strings.xml

SAP - ERP Solution

SAP Modules

http://www.erp4students.eu/images/sap-eu/kursuebersicht_eu_2013.jpg

Best Latex Editor

http://www.xm1math.net/texmaker/

Python - Setup and Install Packages A-Z

Setup Python
Download Python Setup: Click to install

Install Modules/Packages
Preparing for easy_install package
- setuptools
cmd\setuptools directory>python setup.py install

If setuptools appears to install correctly, and you can run the easy_install but need to set PATH VARIABLE includes the appropriate C:\\Python2X\\Scripts directory

- easy_install
do not wish easy_install to actually download anything, you can restrict it from doing so with the --allow-hosts option
cmd>easy_install

Downloading and Installing a Package

RDFLib is a Python library for working with RDF, a simple yet powerful language for representing information as graphs.

cmd> easy_install rdflib

http://code.google.com/p/3account/wiki/Getting_Started

This page describes a simple installation on Windows. For Unix see following page for detailed install for developers and none Windows OS and description of system architecture.

Installing

Download and Install Java (there is good chance that Java is already installed on your computer.)
Download 3account base package zip file
Unzip the file, to any directory you like (for example C:\.) After unzipping, your directory should contain a new 3account directory (for example C:\3account) containing lots of files and sub-directories

Running the system

Use the File Explorer to find the file start.bat in the 3account directory and double click on it; after about a minute, you should see your browser opened on 3account's main page. Note that every time you run start.bat it performs an automatic update of the 3account software.

Stopping the system

Close the window opened by clicking on start.bat. You can do this by clicking on the x at the top right corner

Uninstalling

Just delete the 3account directory

Loading data

The installation is already loaded with sample data. If you want to load your own data do the following:

Run start.bat as described above (actually you only need its repository which can be started by running sesame.bat)
Start a windows Command Prompt (Start->All Programs->Accessories->Command Prompt)
In the command prompt type: cd <3account-directory> (for example cd c:\3account)
type: Python26\python load3account.py -h you should see help instructions on how to use load3account to load bank statements into the repository. See the following page for more detailed information. You should carefully review if there is any manual property you need to define in order to improve the system results
After loading data you should stop the system and restart it

Removing data

If you want to remove a file you have previously uploaded, or if you want to remove the sample data, follow these instructions.

Address

http://localhost:8000/

Facebook Graph API & OAuth 2.0 & Flash

Facebook Graph API & OAuth 2.0 & Flash (update)

As previously mentioned, facebook released a new Graph API. It is based on OAuth 2.0 protocol (old authorization token also works). While it is fresh thing, there is no much ActionScript stuff around, so I came with FacebookOAuthGraph class. This class is meant to be used as an abstract class, while it contains just the basic authentication algorithm and call method to request data. It stores access token in SharedObject, so next time you came into app, you get connected on background without noticing (no popup etc.). Your token should expire in 24 hours.

Here is the code for the following flex app, to make it work, get latest FacebookOAuthGraph and FacebookOAuthGraphEvent classes.

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<?xml version="1.0" encoding="utf-8"?>

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical"

    applicationComplete="init()">

<mx:Script>

<![CDATA[

    import sk.yoz.events.FacebookOAuthGraphEvent;

    import sk.yoz.net.FacebookOAuthGraph;

    // facebook Application ID

    private var clientId:String = "268718683475";

    // path to our callback 

    private var redirectURI:String = 

        "http://blog.yoz.sk/examples/FacebookOAuthGraph/callback.html";

    // required extended permissions

    private var scope:String = "publish_stream,user_photos,user_photo_video_tags";

    private var facebook:FacebookOAuthGraph = new FacebookOAuthGraph();

    [Bindable] private var connected:Boolean;

    private function init():void

    {

        facebook.clientId = clientId;

        facebook.redirectURI = redirectURI;

        facebook.scope = scope;

        facebook.useSecuredPath = true;

        facebook.addEventListener(FacebookOAuthGraphEvent.AUTHORIZED, authorized);

        // stage.root.loaderInfo.parameters

        facebook.autoConnect(parameters);

        log.text += "checkSavedToken()\n";

    }

    private function connect():void

    {

        facebook.connect();

        log.text += "connect()\n";

    }

    private function authorized(event:FacebookOAuthGraphEvent):void

    {

        connected = true;

        log.text += "authorized\n";

    }

    private function call(path:String, binary:Boolean):void

    {

        var loader:URLLoader = facebook.call(path);

        loader.dataFormat = binary 

            ? URLLoaderDataFormat.BINARY

            : URLLoaderDataFormat.TEXT;

        loader.addEventListener(FacebookOAuthGraphEvent.DATA, callComplete);

        log.text += "call(" + path + ")\n";

    }

    private function changeStatus(message:String):void

    {

        var data:URLVariables = new URLVariables();

        data.message = message;

        var method:String = URLRequestMethod.POST;

        var loader:URLLoader = facebook.call("me/feed", data, method);

        loader.addEventListener(FacebookOAuthGraphEvent.DATA, callComplete);

        log.text += "changeStatus(" + message + ")\n";

    }

    private function callComplete(event:FacebookOAuthGraphEvent):void

    {

        log.text += "call completed -> see result\n";

        if(event.rawData is ByteArray)

        {

            var loader:Loader = new Loader();

            loader.loadBytes(event.rawData as ByteArray);

            loader.contentLoaderInfo.addEventListener(Event.COMPLETE, 

                function():void

                {

                    image.source = loader;

                });

        }

        else

        {

            result.text = event.rawData.toString();

        }

    }

]]>

</mx:Script>

<mx:HBox>

    <mx:Button click="connect()" label="connect" />

    <mx:Text text="{connected ? 'connected' : 'not connected'}" />

</mx:HBox>

<mx:HBox visible="{!connected}" includeInLayout="{!connected}">

    <mx:Text text="#access_token=121161974560905%7C2..." />

    <mx:TextInput id="hash" />

    <mx:Button label="add hash" click="facebook.confirmConnection(hash.text)"/>

</mx:HBox>

<mx:HBox>

    <mx:TextInput id="path" text="me" />

    <mx:Button label="call" click="call(path.text, false)" enabled="{connected}"/>

    <mx:Spacer width="20" />

    <mx:TextInput id="path2" text="me/picture" />

    <mx:Button label="call binary" click="call(path2.text, true)" enabled="{connected}"/>

</mx:HBox>

<mx:HBox>

    <mx:TextInput id="status" text="testing FacebookOAuthGraph" />

    <mx:Button label="change status" click="changeStatus(status.text)" enabled="{connected}"/>

</mx:HBox>

<mx:HDividedBox width="100%" height="100%">

    <mx:TextArea width="30%" height="100%" id="log"/>

    <mx:TextArea width="70%" height="100%" id="result"/>

    <mx:Image id="image" />

</mx:HDividedBox>

</mx:Application>

Make sure your html wrapper defines correct allowScriptAccess and both id and name for <object> tag. This enables ExternalInterface.objectID. With swfobject use:

var params = {

    allowScriptAccess: "sameDomain"

};

var attributes = {

    id: "FacebookOAuthGraphTest",

    name: "FacebookOAuthGraphTest"

};

swfobject.embedSWF("FacebookOAuthGraphTest.swf", "alternative", "100%", "100%", "10.0.0",

    "expressInstall.swf", flashvars, params, attributes);

callback.html pushes url hash into flash app. When running this application from desktop (creating/debugging), your callback.html located on public domain has no access to its opener (different domain – XSS), so you need to pass access_token manualy into <TextInput id=”hash”>, but once your flash application is on the same domain with callback, it works automaticaly.
callback.html:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="sk" lang="sk" dir="ltr">

<head>

    <script type="text/javascript">

    <!--

        if(window.opener && window.opener.confirmFacebookConnection)

        {

            window.opener.confirmFacebookConnection(window.location.hash);

            self.close();

        }

    //-->

    </script>

</head>

<body>

<p>You may now close this window.</p>

</body>

</html>

Click connect and allow facebook application. Facebook redirects to callback.html that pastes hash into flash and closes popup. Now you are authenticated. Next time you visit this flash application (refresh this page) you will get authenticated in background (if your access token is still valid). Notice, some graph api calls returns JSON objects (me), other may return binary data (me/picture). For now it may take some time to finish calls (5 second or more), but I hope facebook will soon make it fast.

You get your JSON decoded data via event.data. Just make sure you do not try to decode ByteArray (eg. me/picture)

// call("me")

private function callComplete(event:FacebookOAuthGraphEvent):void

{

    trace(event.data.name);

}

Some calls to test:

Friends:             me/friends

News feed:           me/home

Profile feed (Wall): me/feed

Likes:               me/likes

Movies:              me/movies

Books:               me/books

Notes:               me/notes

Photos:              me/photos

Videos:              me/videos

Events:              me/events

Groups:              me/groups

Additional information about my facebook app (see all settings):

Application ID:         268718683475

App Domain:              yoz.sk

Website / Site URL:      http://blog.yoz.sk/examples/FacebookOAuthGraph/

App on FB / Canvas URL:  http://blog.yoz.sk/examples/FacebookOAuthGraph/facebook.php?a=b

Page Tab / Page Tab URL: http://blog.yoz.sk/examples/FacebookOAuthGraph/facebook.html?

Canvas type:             iframe

Developer Mode:          Off

App Type:                Native/Desktop

Sandbox Mode:            Disabled

Remove Deprecated APIs:  Enabled

signed_request for Canvas: Enabled

Timezone-less events:    Enabled

Encrypted Access Token:  Enabled

...other Migrations:     Disabled

Based on facebook access token, it should be valid approximately for 24 hours. Notice the bold part, works as expiration time (unix time format). Use FacebookOAuthGraph.tokenToExpiration() to parse Date:
access_token=268718683475%7C2.w3fjqz80Xi1CdBXt7Ygh6A__.86400.1273158000-1215645368%7CDGv2l2HtTymd6cM6Fy_8k6P_8CQ.
Important update: May 19, 2010: Application is working again. Due to massive support in bug tracker (thanks all for your votes), facebook devs changed secured crossdomain.xml, so it allows unsecured requests. changeStatus() method added into example and some minor changes in FacebookOAuthGraph class (please update).
Here is what happend and why this app was not working for a while:

May 11, 2010: facebook changed rules, so requests on unsecured graph service (via http://graph.facebook.com…) were limited to just those without access_token parameter. Requets to secured service (https://graph.facebook.com) resulted in security violation due to missing secure=”false” parameter in crossdomain.xml
May 12, 2010: bug submitted
May 12, 2010 – May 14, 2010: massive bug voting
May 14, 2010: Bug confirmed by facebook dev team
May 19, 2010: Bug fixed, crossdomain file changed

I am glad that facebook devs listens and care.

FAQ

Is there a .fla version available?

Yes, there is a simple working Flash CS4 archive available for download (.fla + all sources). The demo connects the facebook application and once connected, it uploads generated picture into photo album.

How can I use this class in my iframe canvas page?

Please read article Authorizing Iframe Facebook Applications For Graph API

How can I make this class do more advanced things and what are the best practices?

Please read article Extending FacebookOAuthGraph Class, where all the most comon extendings are described.

When I connect with this app in one browser (firefox), and I run another browser (chrome) I get automatically connected. Why?

Your authorization token is stored in SharedObject, that is OS-user persistent (eg. windows user). No matter what browser you run, all of those reads data from one SharedObject. If you need cookie or session persistent authorization, please extend my class and override methods that use SharedObject.

How to add request parameters into my call?

Pass URLVariables object as a second parameter to call() method:

// eg. in order to make this call "me/picture?type=large", do the following:

var data:URLVariables = new URLVariables();

data.type = "large"

call("me/picture", data);

Why I can not access me/photos?

Facebook has changed rules again. You also need “user_photo_video_tags” permission within your app. I have already added it into my app, so please remove your browser cache, refresh and click connect button again (even if you are connected already). Now it should work.

How to upload photo with graph api?

This is a piece of working code from Sean, thnx Sean:

// MultipartURLLoader by Eugene Zatepyakin can be found here: http://bit.ly/9wx4q7

public function uploadImageCall(path:String, ba:ByteArray, message:String, token:String=null):MultipartURLLoader

{

    var mpLoader:MultipartURLLoader = new MultipartURLLoader();

    mpLoader.addVariable("message", message);

    mpLoader.addFile(ba, "image.jpg", "image");

    loaderAddListeners(mpLoader.loader);

    mpLoader.load(apiSecuredPath + "/me/photos?access_token="+ token);

    return mpLoader;

}

Can I make fql calls with this class?

However graph api does not implement fql calls, you can make fql calls using this class. The resulted data are not JSON but XML:

var data:URLVariables = new URLVariables();

data.query = "SELECT uid, name FROM user WHERE uid = XXX"; // insert your uid

var loader:URLLoader = facebook.call("method/fql.query", data, 

    URLRequestMethod.POST, null, "https://api.facebook.com");

loader.addEventListener(FacebookOAuthGraphEvent.DATA, fqlComplete);

private function fqlComplete(event:FacebookOAuthGraphEvent):void{

        var xml:XML = new XML(event.rawData);

For fqlComplete method, please read Parsing FQL result article.

Can I post feeds with attachments?

Graph API has not documented attachment functionality for feeds, anyway, you can publish streams with attachments with this class as simple as:

var media:Object = {};

media.type = "flash";

media.swfsrc = "http://zombo.com/inrozxa.swf";

media.imgsrc = "http://blog.yoz.sk/wp-content/uploads/3d-150x150.jpg";

media.width = "80";

media.height = "80";

media.expanded_width = "120";

media.expanded_height = "120";

var attachment:Object = {};

attachment.name = "test name";

attachment.href = "http://blog.yoz.sk"

attachment.description = "test description";

attachment.caption = "test caption";

attachment.media = [media];

var data:URLVariables = new URLVariables();

data.message = "test message";

data.attachment = JSON.encode(attachment);

facebook.call("method/stream.publish", data, URLRequestMethod.POST, null, "https://api.facebook.com");

How can I develop my app locally when callback only works on the domain?

While callback is not able to push access_token into your app on runtime, I just copy access_token value into my code and publish again:

if(!parameters.session)

parameters.session = JSON.encode({

    access_token:String("123864964303507%7C2._pSS7WlemeGB9M0RV8Vnuw__.3600.1276246800-1215645368%7C-kYjWPx4MR6DXc5Clcnv5kXX3t4.")

        .replace(/\%7C/g, "|")

});

facebook.autoConnect(parameters);

Hi Is there a way to implement a “i Like” button with your class?

Sorry, you can not use graph API to like stuff, there is no method for that. Even by testing like request:

href: http://www.facebook.com/pages/***

node_type: page

edge_type: like

page_id: 12345

action_text

now_connected: true

nctr[_mod]: connect

post_form_id: 123ABF***********

fb_dtsg: TAfAJ

post_form_id_source: AsyncRequest

… post_form_id is some static required parameter that you can not guess.

This example app works with Internet Explorer, but my one results in Error #2032

~~Please complie your app to Flash Player 10 (or later). It should fix this issue. Credits goes to Garcimore , thnx~~. The issue has been identified as header Content-Type: application/json, that is returned from facebook. Suggested workaround (by facebook dev team) is to use POST variables with your requests, however it is reported as not working solution.

I can not make it run in my Mac-Safari sonfiguration

It seems there is a bug in Safari on Mac that does not let you open popup via ExternalInterface. You should use navigateToURL() in that case. Credits goes to Beans, thank you. More instructions here.

var js:String = "return window.navigator.userAgent.indexOf('Safari') > -1);"

if(ExternalInterface.call("function(){" + js + "}")){

   // safari specific code

Source:
http://blog.yoz.sk/2010/05/facebook-graph-api-and-oauth-2-and-flash/

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