Anyone consuming Web Services from within an OScript module?

I'm looking to robustly access a .Net web service from my OScript module. I have implemented it using the Socket class, but it's not nice - too much possibility of a thread hanging. Also Socket.Read produced a "thread released" error when it got to EOF, so I had to implement a nasty StreamUntil.Is there a nice way of using web services without invoking an external java class to do it for you? Frame single = $Kernel.Mutex.New( "MODULE::_Get" ) if ( single ) Socket sock = Socket.Create() sock.pStreaming = TRUE if ( Socket.Connect( sock, "localhost", 80 ) ) if ( Socket.Write( sock, cmd ) ) Socket.Flush( sock ) String res = Str.ValueToString(Socket.StreamUntil( sock,"" )) Socket.Close( sock ) Echo(res) else Echo("Socket Write failed") end else Echo("Could not get socket") end else Echo("Socket in use") end

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Hans Stoop

Message from Hans Stoop <hstoop@opentext.com> via eLink

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HI John,

What do you mean by"external java class"?

My proposal would be to implement it in a Java object that will run in the Livelink server and is called from OScript.

Hans

From: eLink Discussion: Development Discussion [mailto:development@elinkkc.opentext.com]
Sent: Monday, December 14, 2009 4:04 PM
To: eLink Recipient
Subject: Anyone consuming Web Services from within an OScript module?

Anyone consuming Web Services from within an OScript module?

Posted by j.underhill@logica.com (Underhill, John) on 2009/12/14 10:00

I'm looking to robustly access a .Net web service from my OScript module. I have implemented it using the Socket class, but it's not nice - too much possibility of a thread hanging. Also Socket.Read produced a "thread released" error when it got to EOF, so I had to implement a nasty StreamUntil.

Is there a nice way of using web services without invoking an external java class to do it for you?

@ @ Frame single = $Kernel.Mutex.New( "MODULE::_Get" )
@ @ if ( single )
@ @ @ @ Socket sock = Socket.Create()
@ @ @ @ sock.pStreaming = TRUE@ @
@ @ @ @ if ( Socket.Connect( sock, "localhost", 80 ) )
@ @ @ @ @ @ if ( Socket.Write( sock, cmd ) )
@ @ @ @ @ @ @ @ Socket.Flush( sock )
@ @ @ @ @ @ @ @ String res = Str.ValueToString(Socket.StreamUntil( sock,"</string>" ))

@ @ @ @ @ @ @ @ Socket.Close( sock )
@ @ @ @ @ @ @ @ Echo(res)
@ @ @ @ @ @ else
@ @ @ @ @ @ @ @ Echo("Socket Write failed")
@ @ @ @ @ @ end
@ @ @ @ else
@ @ @ @ @ @ Echo("Could not get socket")@ @
@ @ @ @ end
@ @ else
@ @ @ @ Echo("Socket in use")@ @ @ @
@ @ end

John Underhill

Yes, I meant without writing a JavaObject I would have to invoke from OScript - I was hoping there was a clean way to do it without leaving OScript.

John Underhill

For a non-java person, what's involved? Any documentation I can use?

Appu_Nair

I am not aware of any official documentation other than a module that Rolf Poser produced.In that Rolf shows you how to call a static hava method.When we devloped a web service consumer we went along the same lines using a mutex to singleton the socket call.We implemeted a relay.Oscriot calls a URl to aspx page.It calls a sap web service .We parse the html that we are looking for.I recently documented this for another person trying to get java called form oscripthttps://knowledge.opentext.com/knowledge/llisapi.dll?func=ll&objId=17019239&objAction=downloadSee if that s of any use.

Hans Stoop

Message from Hans Stoop <hstoop@opentext.com> via eLink

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In the builder help there is some doucmentation on JavaObject.

Searching for JavaObject on th eKC will also show some discussions on the subject.

Hans

From: eLink Discussion: Development Discussion [mailto:development@elinkkc.opentext.com]
Sent: Monday, December 14, 2009 6:33 PM
To: eLink Recipient
Subject: I am not aware of any official documentation other than a module that Rolf...

I am not aware of any official documentation other than a module that Rolf...		Posted by anair@alitek.com (Nair, Appu) on 2009/12/14 12:23
In reply to: For a non-java person, what's involved? Any documentation I can use?		Posted by j.underhill@logica.com (Underhill, John) on 2009/12/14 11:28

I am not aware of any official documentation other than a module that Rolf Poser produced.In that Rolf shows you how to call a static hava method.When we devloped a web service consumer we went along the same lines using a mutex to singleton the socket call.We implemeted a relay.Oscriot calls a URl to aspx page.It calls a sap web service .We parse the html that we are looking for.
I recently documented this for another person trying to get java called form oscript
https://knowledge.opentext.com/knowledge/llisapi.dll?func=ll&objId=17019239&objAction=download
See if that s of any use.

John Underhill

I might stick with the socket call for now. Fortunately I have control over the web service code too, so hopefully the relay idea won't be needed. It works if nothing goes wrong - it just dies badly.The JavaObject usage looks straight forward - i just don't have the java to call. One for the future maybe. Thanks all.

Greg_Griffiths_(ggriffiths_-_(deleted))

I came across the following a while ago which may be of interest - http://ednortonengineeringsociety.blogspot.com/2009/08/creating-restful-web-services-with.html