Consume C# DataSet from .Net webservice

Hi
you wish to consume DataSet from .NET webservices , anyway i could not find an easy way to do it , as you do it within c# code, you must deal with XML parsers.
any way, a very good explanation and description could be found here Web Services and DataSets.

In short .. it is most recommended to expose the results as array of objects ,when you want your Java consumer be happy.
.... i used axis 2 to generate webservice proxies .

good luck
Yaniv Tzanany

How to get Facebook friends status ? - online or not

just found this post , i didn't test it yet , and i cant promise anything about it.
you need the next Extended permission: friends_online_presence

To actively query the online presence of your friends use the next graph call:

https://api.facebook.com/method/fql.query?access_token='((INSERT ACCESSTOKEN HERE))'&query= SELECT online_presence FROM user WHERE uid = '((UID OF FRIEND))'

That should return the info.
i hope it will work, i will report when it will work for me.

enjoy
Yaniv Tzanany

MyLikesBox - You must have this facebook application

See ALL You Facebook LIKE's!
Manage your facebook likes with this App.

see how its looks like at Techcrunch , and you can use it direct from here MyLikesBox.
you will LOVE it !!!
Don't forget to LIKE us too.


enjoy
Yaniv Tzanany

C++ code description in XML

The GCC-XML, the XML output extension to GCC! 

Development tools that work with programming languages benefit from their ability to understand the code with which they work at a level comparable to a compiler. C++ has become a popular and powerful language, but parsing it is a very challenging problem. This has discouraged the development of tools meant to work directly with the language.

There is one open-source C++ parser, the C++ front-end to GCC, which is currently able to deal with the language in its entirety. The purpose of the GCC-XML extension is to generate an XML description of a C++ program from GCC's internal representation. Since XML is easy to parse, other development tools will be able to work with C++ programs without the burden of a complicated C++ parser.

more could be found here GCC-XML

Yaniv Tzanany

Predefined Macros in c++

In ANSI c++ , there are some predefined macro that you can used , for example to write to your logs.

 __DATE__ 
A character string literal containing the date when the source file was compiled. The date will be in the form:
   "Mmm dd yyyy"
 __FILE__ 
Defined as a character string literal containing the name of the source file.
 __LINE__ 
Defined to be an integer representing the current source line number.
 __STDC__ 
Defined if the C compiler conforms to the ANSI standard. This macro is undefined if the language level is set to anything other than ANSI.
 __TIME__ 
Defined as a character string literal containing the time when the source file was compiled. The time will be in the form:
   "hh:mm:ss"

__FUNCTION_
access the name of a currently executing function programmatically.



more macros could be found here Standard Predefined Macro, more about __FUNCTION__  could be found here Retrieve a Function's Name Programmatically




Code sample:

#include 

#ifdef __STDC__
# define CONFORM "conforms"
#else
# define CONFORM "does not conform"
#endif
int main(void)
{
printf("Line %d of file %s has been executed\n", __LINE__, __FILE__);
printf("This file was compiled at %s on %s\n", __TIME__, __DATE__);
printf("This program %s to ANSI standards\n", CONFORM);
}



Yaniv Tzanany

Adding custom http header to each request with FireFox and IE

Sometimes you need to add an extra http header for each request , to simulate requests from third parties or clients.
in my case i needed to add an extra header for each request to simulate "single sign on" to my system, so an extra header added by the client with the user id , and i wanted to test such solution, without the need to develop a proxy or any test tool, so i found this.
For Firefox -  use the add on Modify header to Add, modify and filter http request headers.
For IE browser - it more complicated:

• you have to download Fiddler
• Open the 'Customize Rules' window (Rules->Customize Rules...)
• Find this function: static function OnBeforeRequest(oSession: Session)
• inside this function, add the header values that you would like to add, in this format: oSession.oRequest["headerName"] = "headerValue";

To get your new header on each request , open your IE , and make sure Fiddler is running.

enjoy 

Yaniv Tzanany

Working with WebSphere MQ JMS Under WebSphere app server

i struggled allot to make this JMS  sample working .
follow the next instruction to use JMS under web sphere.

1. get into admin console
2. get into JMS->connection factories  -> new
    choose web sphere MQ , click OK .
give it a logic name , and a jndi name such as jms/myMqFactory, and set the correct parameters during the wizard.
click finish and save.

3. goto Resources -> JMS ->queues
4. click new , and choose websphere MQ message provider
set the name and jndi name such as jms/mqRequestQ
and set the queue name
5. click apply and save.

some resources i used :
Developing a JMS client

IBM WebSphere Developer Technical Journal: Building an Enterprise Service Bus with WebSphere Application Server V6 -- Part 3
A java.lang.ClassCastException error occurs during a JNDI lookup of a queue connection factory

How to extract Queue Manager Name from CF / QCF in your J2EE JMS application

here is the code snippets, i used tp send message to mqRequestQ and get result from mqResponseQ , and pick the message with the same msg id:

private void testJMS(String qIn,String qOut )
{

    String  outString                 = "I am a string from JMS";
    String  qcfName                   = "jms/myMqFactory";
    String  qnameIn                   = "jms/mqRequestQ";
    String  qnameOut                  = "jms/mqResponseQ";
    boolean verbose                   = false;

    Session           session    = null;


    Connection        connection = null;
    ConnectionFactory   qcf  = null;

    Queue                  inQueue    = null;
    Queue                  outQueue   = null;
    InitialContext context = null;
    try {
context = new InitialContext();
qcf = (ConnectionFactory)context.lookup( qcfName );
inQueue = (Queue)context.lookup( qnameIn );
outQueue = (Queue)context.lookup( qnameOut );

   if(qcf != null)
   {
connection = qcf.createConnection();  
connection.start();
boolean transacted = false;
session = connection.createSession( transacted,
Session.AUTO_ACKNOWLEDGE);
((MQQueue)inQueue).setTargetClient(JMSC.MQJMS_CLIENT_NONJMS_MQ); //its 1
MessageProducer  queueSender = session.createProducer(inQueue);
queueSender.setDeliveryMode(DeliveryMode.NON_PERSISTENT);
queueSender.setTimeToLive(60000); // in milli seconds 0 - unlimited
TextMessage outMessage = session.createTextMessage(outString);
outMessage.setJMSCorrelationID("Alis0000");
queueSender.send(outMessage);
queueSender.close();

String msgID  = outMessage.getJMSMessageID();
String selector1 = "JMSMessageID='"+msgID+"'";
MessageConsumer queueReciever =  session.createConsumer(outQueue, selector1);
javax.jms.Message inMessage =  queueReciever.receive(2000);
if ( inMessage instanceof TextMessage )
{
String replyString = ((TextMessage) inMessage).getText();
}
queueReciever.close();

session.close();
session = null;
connection.close();
connection = null;
   }

} catch (NamingException e) {
// there is no such DSN lets report it and will try to work without the DataSource name

} catch (JMSException je) {
      System.out.println("JMS failed with "+je);
      Exception le = je.getLinkedException();
      if (le != null)
      {
  System.out.println("linked exception "+le);
      }
}
}

enjoy
Yaniv Tzanany