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Support of JSON module [message #1816779]

Wed, 06 November 2019 18:21

Olaf Bergengruen

Messages: 127
Registered: November 2018

Senior Member

Hi Elemer,

Firstly thanks for your overview and the example in your latest posting on using JSON. It was really helpful!

Motivated by you example we attempted to build more generic types using the JSON module in Annex A in Part 11 of the TTCN specification (ETSI ES 201 873-11 V4.8.1 (2018-05)). I attach below the module.

The problem seems to be that Titan can not compile it.
Can you confirm that Titan does not support JSON.ttcn in Annex A?

Olaf @ ETSI STF160

Attachment: JSON.ttcn
(Size: 6.56KB, Downloaded 121 times)
Attachment: JSON.ttcn
(Size: 6.56KB, Downloaded 114 times)

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Re: Support of JSON module [message #1816796 is a reply to message #1816779]

Thu, 07 November 2019 06:51

Kristof Szabados

Messages: 60
Registered: July 2015

Member

Hi,

If I understand correctly this is the problematic part of the code:
const JSON.String_short cs_rs := "\";

shouldn't this be written like below according to the standard:
const JSON.String_short cs_rs := "\\";

Kristof

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Re: Support of JSON module [message #1816800 is a reply to message #1816779]

Thu, 07 November 2019 09:32

Botond Baranyi

Messages: 55
Registered: February 2016

Member

Hi,

Also, many of the variant attributes in JSON.ttcn are not recognized by our JSON codec.
I'd suggest using the compiler option '-E', which causes unrecognized variant attributes to only produce warnings instead of errors (if you manage to get past the issue with the backslash characters).

Best regards,
Botond Baranyi

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Re: Support of JSON module [message #1816801 is a reply to message #1816800]

Thu, 07 November 2019 10:11

Elemer Lelik

Messages: 1120
Registered: January 2015

Senior Member

Hi Olaf,

JSON attributes supported by Titan are described in ch.4.26 of the reference guide.
Subchapter 4.26.5. Differences from the TTCN-3 standard will give you a summary of the differences.

BR

Elemer

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Re: Support of JSON module [message #1816802 is a reply to message #1816801]

Thu, 07 November 2019 10:59

Olaf Bergengruen

Messages: 127
Registered: November 2018

Senior Member

Thanks, Elemer and all for your replies.

Conclusion for us: The module JSON.ttcn in Annex A can not be used.

By the way, where is the current Titan Reference Guide.
Regards,
Olaf

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Re: Support of JSON module [message #1816803 is a reply to message #1816802]

Thu, 07 November 2019 11:07

Elemer Lelik

Messages: 1120
Registered: January 2015

Senior Member

Hi Olaf,

every binary package contains the documentation, including the reference guide.

Else, documentation can be downloaded from https://projects.eclipse.org/projects/tools.titan/downloads

BR
Elemer

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Re: Support of JSON module [message #1816804 is a reply to message #1816803]

Thu, 07 November 2019 11:17

Olaf Bergengruen

Messages: 127
Registered: November 2018

Senior Member

Thanks, Elemer!
I should have known where the Titan documentation is :-)
Olaf

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Re: Support of JSON module [message #1816875 is a reply to message #1816801]

Sat, 09 November 2019 16:02

Olaf Bergengruen

Messages: 127
Registered: November 2018

Senior Member

Hi Elemer and Botond,

last question on this topic (my colleagues will certainly ask):
Is it in your Titan road-map to eventually support module JSON.ttcn in Annex A Part 11 of the TTCN spec?

Regards,
Olaf

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Re: Support of JSON module [message #1816889 is a reply to message #1816875]

Mon, 11 November 2019 06:50

Elemer Lelik

Messages: 1120
Registered: January 2015

Senior Member

Hi Olaf,

certainly, but I could not give you an ETA right now.

Best regards
Elemer

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Re: Support of JSON module [message #1817757 is a reply to message #1816889]

Thu, 28 November 2019 14:42

Elemer Lelik

Messages: 1120
Registered: January 2015

Senior Member

Hi Olaf,

we added this issue to our backlog, see

https://bugs.eclipse.org/bugs/show_bug.cgi?id=553584

The reason for the discrepancy is that we have published our version before the standard. :)
It's not a great effort though to get them in sync.

BR
Elemer

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Re: Support of JSON module [message #1817771 is a reply to message #1817757]

Thu, 28 November 2019 21:51

Olaf Bergengruen

Messages: 127
Registered: November 2018

Senior Member

Thanks, Elemer!
Olaf

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Re: Support of JSON module [message #1822399 is a reply to message #1817771]

Thu, 05 March 2020 16:38

Elemer Lelik

Messages: 1120
Registered: January 2015

Senior Member

Hi Olaf,

pls give it a try:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=553584

(You will of course need to build the latest binary from source)

BR

Elemer

[Updated on: Thu, 05 March 2020 17:03]

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