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Enrico Parisi · Nov 27, 2023 
Method OnRequest(pRequest As Ens.StreamContainer, Output pResponse As Ens.Response) As %Status
{ $$$LOGINFO("Inne i XmlFilterProcess")
    set filename = pRequest.OutputFilename
    set stream = pRequest.Stream
    $$$LOGINFO(stream.Read())

 set status=##class(%XML.XPATH.Document).CreateFromStream(stream,.mydoc)
 set status=mydoc.EvaluateExpression("/staff/doc/name","text()",.myresults)
 set count = myresults.Count()
 $$$LOGINFO(count)
 
  for i =1:1:count
 {
 set result = myresults.GetAt(i).Value
 $$$LOGINFO(result)
 }
    Quit status
}

You need to change this two lines:

set status=mydoc.EvaluateExpression("/staff/doc/name","1",.myresults)
set status=mydoc.EvaluateExpression("/staff/doc/name","text()",.myresults)

set result = myresults.GetAt(i)
set result = myresults.GetAt(i).Value

Enrico

Enrico Parisi · Nov 27, 2023

Simply replace the line:
//call here Do ##class(Ens.Util.XML.Reader).ChangeXMLStreamEncoding...

With:
Set outputBinaryStream=##class(%Stream.FileBinary).%New()
Do ##class(Ens.Util.XML.Reader).ChangeXMLStreamEncoding(tStream, "ISO-8859-1",outputBinaryStream, .tSC)
//you may want to check tSC, just in case....
//now on use the header changed outputBinaryStream instead of tStream

Enrico

Enrico Parisi · Nov 27, 2023

Set inputBinaryStream=##class(%Stream.FileBinary).%New()
Set inputBinaryStream.Filename="\\server\your\share\file.xml"
Set outputBinaryStream=##class(%Stream.FileBinary).%New()
Set outputBinaryStream = ##class(Ens.Util.XML.Reader).ChangeXMLStreamEncoding(inputBinaryStream, "ISO-8859-1",outputBinaryStream, .tSC)

; Since the output stream is passed, you can just call (last line) with:
Do ##class(Ens.Util.XML.Reader).ChangeXMLStreamEncoding(inputBinaryStream, "ISO-8859-1",outputBinaryStream, .tSC)

Enrico

Enrico Parisi · Nov 26, 2023

EVERY interoperability session start from a Business Service, be it from a message/call received from an external system or triggered by a timed event, like in this case.
Your problem/question is:

"I need to trigger production process/operation every minute"

That's EXACTLY what my BS sample does, all you need is to call your "process/operation" that "exchange data with external system".

This is the way to implement it.
Enrico

Enrico Parisi · Nov 26, 2023

Purging every N days should keep the database size almost constant, assuming a constant number of messages.

Unless you have some other database classes that keep growing.

Are you purging message bodies too?

What kind of messages does your production use? HL7 only? Other messages?

You may have orphaned messages in your database.

Regarding moving a CACHE.DAT, can you stop the system for the time it takes to copy the file to a different filesystem/drive?

Enrico

Enrico Parisi · Nov 26, 2023

Very simple, just create a Business Service that use Ens.InboundAdapter.

The default behavior of Ens.InboundAdapter is to call the BS (ProcessInput()) every "CallInterval" seconds.

Something like:

Class Community.bs.TimedService Extends Ens.BusinessService
{

Parameter ADAPTER = "Ens.InboundAdapter";

Method OnProcessInput(pInput As %RegisteredObject, Output pOutput As %RegisteredObject) As %Status
{
	Set BpRequest=##class(Ens.Request).%New()
	Set sc=..SendRequestSync("YourBusinessProcessName",BpRequest,.BpResponse)
	;
	; OR, if you don't need to wait for the BP to finish:
	;Set sc=..SendRequestAsync("YourBusinessProcessName",BpRequest)
	
	Quit sc
}

}

Add this service to your production, to trigger every one minute set the setting CallInterval=60 (seconds).

Enrico

Enrico Parisi · Nov 23, 2023

I've no idea why it does not works, however, why do you use % classes now days?
Today there is (IMO) a better way to implement system wide accessible classes/code without "messing" with % classes (or code in general) stored in the IRISSYS database.

Create a new database & namespace (creating namespace is optional but convenient), say you call it JIULIB and put all your system wide accessible code there with proper (unique) package naming.
In this case you can call your sample class pylib.Utility instead of %Zpy.Utility and save&compile it in your JIULIB namespace.

Then create the ("virtual") namespace called %ALL and map the package pylib to your JIULIB database and voilà, your pylib package is accessible from ALL namespaces currently defined and new ones created afterwards.

In this way you have all your lib code properly divided in your own database (may simplify upgrades) and is a more "container friendly" configuration.

Bonus: your python test works! (just tested in my system)

Today there is no good reason to use/make %* classes/code, leave %* to InterSystems.

Relevant documentation is here.

Enrico

Enrico Parisi · Nov 23, 2023

I'm not sure I understand your issue right, my understanding is that you receive an XML declared as UTF-8 that contains ISO-8859-1 characters.

If so, you can convert the encoding of the stream content using something like:

/// Convert the encoding of the content of a stream to UTF-8.
/// If OutStream is not passed (of any %Stream.* class), then a new %Stream.GlobalBinary is returned.
/// Note that OutStream IS NOT SAVED on exit
ClassMethod ConvertStreamToUTF8(InStream As %Stream.Object, ByRef OutStream As %Stream.Object = {##class(%Stream.GlobalBinary).%New()}) As %Status
{
	Set sc=$$$OK
	Set MaxRead=$$$MaxLocalLength\2 ; to be safe
	Try {
		While 'InStream.AtEnd {
			Set content=InStream.Read(MaxRead)
			Set sc=OutStream.Write($ZCONVERT(content,"O","UTF8"))
			If $$$ISERR(sc) Quit
		}
	} Catch CatchError {
		#dim CatchError as %Exception.SystemException
		Set sc=CatchError.AsStatus()
	}
	Quit sc
}

If the problem is different, please provide more info/details, maybe a sample XML (not necessarily the original XML).

Enrico

Enrico Parisi · Nov 23, 2023 
do service.OnProcessInput(pInput,.pOutpt)

You are not supposed to call the OnProcessInput() callback method directly, instead the ProcessInput() method should be called.

Sometime calling OnProcessInput() works, sometimes create problems.

I think InterSystems should have made OnProcessInput() [private] as most of the callback methods (like %OnNew() for instance).

Enrico

Enrico Parisi · Nov 20, 2023

Again, difficult to tell from the limited info provided.

What are you doing after instantiating  HS.FHIRServer.API.Data.Request ?

HS.FHIRServer.API.Data.Request is a serial class, not a persistent class, are you using it in a SendRequest(Sync/Async) call? If so, then you cannot do that.

But again, this is only a guess, please provide more context.

Enrico

Enrico Parisi · Nov 18, 2023

Thank you Dan for your effort.

A possible place to share your project can be InterSystems Corporation Github where other samples like Sample.Person and other are available.

If possible it would be nice to include the next/fixed version of JDBC, if the fix it's only a new jar and not within IRIS.

Ideally all the relevant info should be added to the documentation.

Enrico