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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 4.0.1
Application framework

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
Learn about different Teracloud Streams tools and features to write, compile, run, and test streams applications.
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.
- Metrics
  Teracloud® Streams provides metrics to help evaluate the health of Teracloud Streams services, to aid in diagnosing performance issues, and to analyze throughput of requests. You can use the streamtool checkinstancemetrics, streamtool checkdomainmetrics, streamtool getdomainmetrics, and streamtool checkresourcemetrics commands to view the metrics data.
- 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.
- SPL Compiler
  The SPL compiler is an incremental compiler that generates artifacts needed to run your stream application. These artifacts include, for example, C++ code for several entities in your SPL program and an application bundle file.
- 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.

Application framework

The TEDA framework and toolkit enable you to build scalable, integrated, and customizable applications that ingest, transform, enrich, and store your data.

The TEDA toolkit provides a framework that is integrated with Streams. This framework provides you with a set of application templates that simplify the process of creating, customizing, and administering applications that offer production-grade and production-proven features that are ready for deployment in your data centers.

Features

The TEDA framework has a number of development, application, and operational features that help you create and manage your applications.

Development features

Packaged parsers for ASN.1, fixed-sized data structures, and CSV formats
Fully customizable applications
Configuration parameters to enable, disable, and configure applications
Predefined variants to optimize the application based on required features

Application features

File-to-file processing
Scalability
Deduplication and custom correlation support
Tuple enrichment using, for example, customer relationship management (CRM) data
Consistent update of enrichment data from files or databases

Operational features

A command script that gracefully shuts down applications
Metrics and statistics for auditing and monitoring application processing
Archive directory storage for processed files

Use cases and application types: Telecommunications companies often have a similar set of requirements and challenges that can be solved with Streams applications that use the TEDA application framework.

Architecture: This chapter gives a high-level overview about the architecture of the application framework and helps you to understand the components and their interactions.

Commands: The TEDA framework offers commands to help you administer your applications.