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Find details on the SPL language, toolkits, APIs, commands, and more.
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A toolkit is a set of SPL artifacts, which are organized into a package. Toolkits make SPL or native functions and primitive or composite operators reusable across different applications.
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Toolkit com.teracloud.streams.teda 4.0.0
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ASN1Parse
Constraints verification is partially supported

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Resolve problems with Teracloud® Streams using the troubleshooting tools provided with the product as well as the resources offered by Teracloud Support.
Reference
Find details on the SPL language, toolkits, APIs, commands, and more.
- APIs
  Application programming interfaces (APIs) provide functions that simplify applications development.
- Job configuration overlays
  You can specify or change configuration parameters when you use the submitjob or updateoperators operations. The settings control submission constraints, host constraints and locations, and operator status. Parameters are captured and updated in the configuration JSON file. When you change the values in the job configuration overlay file, the changes override any previously set values.
- Commands
  Teracloud® Streams provides a number of commands you use to perform tasks.
- Operator model
  An operator model is an XML document that describes the basic properties of a primitive operator.
- Streams Processing Language (SPL)
  Streams Processing Language (SPL) is a distributed data flow composition language that is used in Teracloud® Streams. SPL has primitive types, program structures, and definitions that are tailored for streaming data.
- Toolkits
  A toolkit is a set of SPL artifacts, which are organized into a package. Toolkits make SPL or native functions and primitive or composite operators reusable across different applications.
  - Specialized toolkit requirements and restrictions
    Several of the specialized toolkits require RPMs that are not required by the Teracloud® Streams product. There are also toolkit restrictions on some platforms.
  - Toolkits
- SPLDOC markup
  You can use SPLDOC markup in the descriptions associated with the SPL artifacts in a toolkit. The spl-make-doc command generates HTML documentation from the marked up artifacts.
Glossary
Use this glossary to find terms and definitions for Teracloud® Streams.

Constraints verification is partially supported

ASN.1 supports constraints that can restrict possible values for types. Such constraints can be a restricted alphabet for a string type, for example for PrintableString, or user-defined constraints that are written to the ASN.1 structure definition file, for example a size limitation for an OCTET STRING.

Causes

The ASN1Parse operator supports the so-called PER-visible constraints that are:

Single value and range constraint for INTEGER primitive type
Contained subtype constraint
Size constraints for OCTET STRING, SET OF and SEQUENCE OF types
Alphabet constraints for character string types with fixed and known character widths

The following example shows constraints that are verified:


SomeIntegers ::= INTEGER ( 1 | 3 | 5 | 7 )
Int16 ::= INTEGER ( -32768 .. 32767 )
SizedOctetString ::= OCTET STRING (SIZE(5..10))
SizedIA5String ::= IA5String (SIZE(5..10))
SubsetIA5String ::= IA5String (FROM("A".."Y"))

The following example shows constraints that are not verified:


SomeReals ::= REAL ( 3.1415 | 2.7182 ) -- only supported for INTEGER
RealRange ::= REAL ( -3.3 .. 5.7 ) -- only supported for INTEGER
Answer ::= IA5String ( "yes" | "no" ) -- only supported for INTEGER