Get classname from udl based file

Question

Question

Rustam Ibragimov · Jul 20, 2016

Hello, guys.

I want to add a class to my project. This class is in UDL format.

I know that there is a method: ##class(%Compiler.UDL.TextServices).SetTextFromStream. The problem is that to use this method I need to know the name of the class (including all packages) in advance. But, a class can have any name(I mean C:/source/AAA/BBB/CCC.cls, but the real name is Sample.Human.cls).

For now I found only one way to get to know the name of a class - just parse the class code and search for a word which is followed by "Class" word. Is there any better way to do that?

P.S. There are some problems with my method, such as: the word "Class" can be in comments or the name of a class can be on different line and etc

Discussion (6)0

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Dmitry Maslennikov · Jul 20, 2016

In case when you try to load this file via %Compiler.UDL.TextServices you should know this classname, and you can parse original file. But if it possible, better to use $system.OBJ.Load(), in this case you should not pass classname, only lodaded filename.

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score 0 · Answer 1 · 2016-07-20T09:56:23-04:00

The problem is that $system.OBJ.Load expects a file which is in xml, %ro and cdl formats. I get "Unknown file type" error for udl.

score 1 · Answer 2 · 2016-07-20T10:02:38-04:00

Dmitry Maslennikov · Jul 20, 2016

Yes, because $system.OBJ.Load() started support UDL, only in 2016.2 version

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score 1 · Answer 3 · 2016-07-20T13:41:15-04:00

You can determine class based on a path by enforcing one standard of internal<->external name conversion.

So you have two methods:

ClassMethod GetExternalName(InternalName) As %String {}
ClassMethod GetInternalName(ExternalName) As %String {}

And the value of expressions:

Write InternalName=..GetInternalName(..GetExternalName(InternalName))
Write ExternalName=..GetExternalName(..GetInternalName(ExternalName))

Is always 1 for any valid InternalName/ExternalName.

score 0 · Answer 4 · 2016-07-20T15:37:57-04:00

Where can find GetInternalName method? My class extends from %SYS.Task.Definition.

And probably the path to the class will be different from the real name of the class. For example, the path is abc/qwe/file.cls but the name of the class is cache.hello.cls

score 1 · Answer 5 · 2016-07-20T16:49:00-04:00

Eduard Lebedyuk · Jul 20, 2016

I meant you write them. Here's the reference though.

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