Home
Reference
Find details on the SPL language, toolkits, APIs, commands, and more.
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.
Toolkits
Toolkit com.teracloud.streams.teda 4.0.0
Troubleshooting
Operators
ASN1Parse
Your ASN.1 root element has the wrong container type

Welcome
Learn about the core capabilities of Teracloud® Streams, its architecture, and key concepts.
Installing
Use this information to install, upgrade, and uninstall the Teracloud® Streams product.
Configuring
Create a basic or an enterprise domain which is a single point for configuring and managing common resources, security, and instances.
Administering
Administer the product by using the Teracloud® Streams graphical user interface, APIs, or the streamtool command-line interface.
Developing
Develop stream applications with the Streams Processing Language (SPL), Java, and Python.
Troubleshooting
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.

Your ASN.1 root element has the wrong container type

The ASN1Parse operator requires that the pdu parameter references a SEQUENCE, SET, or CHOICE ASN.1 element. It does not allow you to select a defined ASN.1 element, as shown in the following example:


MY_ROOT ::= SEQUENCE OF ANOTHER_TYPE

In addition, the ASN1Parse operator must identify the specified ASN.1 element as a possible root PDU. In other words, the specified ASN.1 element must not be referenced by another ASN.1 element. For example, pdu: "MY_ROOT" is not allowed for the following ASN.1 grammar because MY_ROOT is referenced by MY_CHILD_TYPE.


MY_ROOT ::= SEQUENCE
{
	a_child_element OPTIONAL MY_CHILD_TYPE
}

MY_CHILD_TYPE ::= SEQUENCE
{
	a_parent MY_ROOT
}

On the other hand, the following ASN.1 grammar allows the pdu parameter to select the MY_ROOT because it is of SEQUENCE type and because no other ASN.1 element references it.


MY_ROOT ::= SEQUENCE
{
	a_element MY_PARENT_TYPE
}

MY_PARENT_TYPE ::= SEQUENCE
{
	a_child_element OPTIONAL MY_CHILD_TYPE
}

MY_CHILD_TYPE ::= SEQUENCE
{
	a_parent MY_ROOT
}

Resolving the problem

If you want to set the pdu parameter manually, assign the name of an ASN.1 element that is SEQUENCE, SET, or CHOICE type and that is not referenced by any other ASN.1 element.