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= VIATRA-CEP Wiki =
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{{VIATRA}}
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= VIATRA Complex Event Processing framework (VIATRA-CEP) =
  
 
Complex event processing (CEP) aims to predict high-level events likely to result from specific sets of low-level factors. CEP identifies and analyzes cause-and-effect relationships among events in real time, allowing personnel to proactively take effective actions in response to specific scenarios. [[http://searchsoa.techtarget.com/definition/complex-event-processing source]]
 
Complex event processing (CEP) aims to predict high-level events likely to result from specific sets of low-level factors. CEP identifies and analyzes cause-and-effect relationships among events in real time, allowing personnel to proactively take effective actions in response to specific scenarios. [[http://searchsoa.techtarget.com/definition/complex-event-processing source]]
  
 
CEP plays an important role in the model-driven engineering (MDE) as a supporting technique in various scenarios. The VIATRA project delivers a state-of-the-art event processing framework for the MDE scene, called VIATRA-CEP. The main features of the framework:
 
CEP plays an important role in the model-driven engineering (MDE) as a supporting technique in various scenarios. The VIATRA project delivers a state-of-the-art event processing framework for the MDE scene, called VIATRA-CEP. The main features of the framework:
*'''A model-driven event processing engine'''. We not just designed the engine using model-driven techniques, but it actually employs an explicit runtime model to process events. The runtime model is captured via EMF and put into motion using the VIATRA-EMF model transformation framework and the EMF-IncQuery incremental graph pattern search engine.
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*'''A model-driven event processing engine'''. We not just designed the engine using model-driven techniques, but it actually employs an explicit runtime model to process events. The runtime model is captured via EMF and put into motion using the VIATRA model transformation framework and the VIATRA Incremental Query (formerly: EMF-IncQuery) graph pattern matcher engine.
 
*'''A textual domain-specific language for modeling event patterns and executable actions.''' The VIATRA Event Processing Language (VEPL) is based on our event algebra and relies on formal techniques like temporal logic and automaton theory. The user, however, is not expected to reason about event patterns on this level, thanks to the Xtext-based implementation of the DSL and the user-friendly editor the framework comes with.
 
*'''A textual domain-specific language for modeling event patterns and executable actions.''' The VIATRA Event Processing Language (VEPL) is based on our event algebra and relies on formal techniques like temporal logic and automaton theory. The user, however, is not expected to reason about event patterns on this level, thanks to the Xtext-based implementation of the DSL and the user-friendly editor the framework comes with.
 
*'''An integrated modeling environment.''' It comprises an editor for VEPL models (featuring syntax highlighting, on-the-fly validation, intelligent content-assist and automated generation of high-quality Java code); as well as wizards for enabling a more efficient workflow.
 
*'''An integrated modeling environment.''' It comprises an editor for VEPL models (featuring syntax highlighting, on-the-fly validation, intelligent content-assist and automated generation of high-quality Java code); as well as wizards for enabling a more efficient workflow.
*'''Tight integration with the EMF-IncQuery engine.''' This enables processing change events in EMF models, facilitating MDE techniques like [http://link.springer.com/chapter/10.1007%2F978-3-319-11653-2_5 streaming model transformations] and [http://link.springer.com/chapter/10.1007/978-3-642-21470-7_7 operation-based model representation and reasoning].
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*<b id=cep-with-iq>Tight integration with the VIATRA Incremental Query engine.</b> This enables processing change events in EMF models, facilitating MDE techniques like [http://link.springer.com/chapter/10.1007%2F978-3-319-11653-2_5 streaming model transformations] and [http://link.springer.com/chapter/10.1007/978-3-642-21470-7_7 operation-based model representation and reasoning].
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==Versions==
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*Releases
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**0.7 - Initial release
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**0.8 - [[VIATRA/Releases/NewAndNoteWorthy0.8 | Release notes]]
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*Current development version (available from [https://hudson.eclipse.org/viatra/job/viatra-master/lastSuccessfulBuild/artifact/releng/org.eclipse.viatra.update/target/repository/ CI] and [http://git.eclipse.org/c/viatra/org.eclipse.viatra.git the Git repository]): 0.13
  
 
==Installation==
 
==Installation==
#Download the latest [https://eclipse.org/downloads/packages/eclipse-modeling-tools/lunasr1 Eclipse Luna Modeling] (currently SR1) package.
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====Alternative #1: Install the latest release====
#Install the following plugins or import their source plug-ins into a running Eclipse instance:
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You can do that directly from the Eclipse Marketplace: [https://marketplace.eclipse.org/content/viatra https://marketplace.eclipse.org/content/viatra]
#; EMF-IncQuery 0.9.0 : [http://download.eclipse.org/incquery/updates/integration CI update site]
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#; VIATRA 0.7.0 (required components are VIATRA2-EMF and VIATRA-CEP) : [https://hudson.eclipse.org/viatra/job/viatra2-emf-master/lastSuccessfulBuild/artifact/releng/org.eclipse.viatra2.emf.update/target/repository/ CI update site]
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====Alternative #2: Install the latest CI version====
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#Download the latest [https://www.eclipse.org/downloads/packages Eclipse Modeling] package.
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#Install the [https://hudson.eclipse.org/viatra/job/viatra-master/lastSuccessfulBuild/artifact/releng/org.eclipse.viatra.update/target/repository/ VIATRA 1.3.0] plugins or import their [http://git.eclipse.org/c/viatra/org.eclipse.viatra.git sources] into a running Eclipse instance
  
 
==User's manual==
 
==User's manual==
*[[VIATRA2/CEP/GettingStarted|Getting Started]]
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*[[VIATRA/CEP/GettingStarted|Getting Started]]
*[[VIATRA2/CEP/Language|Language overview]]
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*Language overview
*[[VIATRA2/CEP/Examples|Examples]]
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**[[VIATRA/CEP/Language/0.7|Release 0.7]]
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**[[VIATRA/CEP/Language/0.8|Release 0.8]]
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**[[VIATRA/CEP/Language|0.13 (CI)]]
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*[[VIATRA/CEP/Examples|Examples]]
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==Developer's guide for setting up the environment==
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Please consult the general VIATRA DevEnv [https://wiki.eclipse.org/VIATRA/DeveloperDocumentation/DevEnvironment setup guide].
  
 
==Important links==
 
==Important links==
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*Ask your questions on our mailing list: [mailto:viatra-dev@eclipse.org viatra-dev@eclipse.org].
 
*[https://bugs.eclipse.org/bugs/buglist.cgi?component=CEP&list_id=10827336&product=Viatra&resolution=--- VIATRA-CEP Bugzilla]
 
*[https://bugs.eclipse.org/bugs/buglist.cgi?component=CEP&list_id=10827336&product=Viatra&resolution=--- VIATRA-CEP Bugzilla]
*Our mailing list: [mailto:viatra-dev@eclipse.org viatra-dev@eclipse.org]
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**Found a bug? Submit it [https://bugs.eclipse.org/bugs/enter_bug.cgi?product=Viatra here]!
*[http://link.springer.com/chapter/10.1007%2F978-3-319-11653-2_5 A paper on VIATRA-CEP from MoDELS 2014] (Available for download from [http://msdl.cs.mcgill.ca/people/istvan/publications/viatra-cep-models2014 here].)
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*Read our related papers
*[[VIATRA2/CEP/Roadmap|Development roadmap]]
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**On [http://link.springer.com/chapter/10.1007%2F978-3-319-11653-2_5 streaming model transformations] @MoDELS2014
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**On [http://link.springer.com/article/10.1007%2Fs10270-016-0533-1 streaming model transformations with more details on the semantics] @SoSyM
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**On [http://link.springer.com/chapter/10.1007/978-3-319-21155-8_8 the new VIATRA platform in general] @ICMT2015
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*Known uses
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**[https://www.youtube.com/watch?v=I6XwXy65KPE TeqBox]

Latest revision as of 11:02, 14 June 2016

VIATRA Complex Event Processing framework (VIATRA-CEP)

Complex event processing (CEP) aims to predict high-level events likely to result from specific sets of low-level factors. CEP identifies and analyzes cause-and-effect relationships among events in real time, allowing personnel to proactively take effective actions in response to specific scenarios. [source]

CEP plays an important role in the model-driven engineering (MDE) as a supporting technique in various scenarios. The VIATRA project delivers a state-of-the-art event processing framework for the MDE scene, called VIATRA-CEP. The main features of the framework:

  • A model-driven event processing engine. We not just designed the engine using model-driven techniques, but it actually employs an explicit runtime model to process events. The runtime model is captured via EMF and put into motion using the VIATRA model transformation framework and the VIATRA Incremental Query (formerly: EMF-IncQuery) graph pattern matcher engine.
  • A textual domain-specific language for modeling event patterns and executable actions. The VIATRA Event Processing Language (VEPL) is based on our event algebra and relies on formal techniques like temporal logic and automaton theory. The user, however, is not expected to reason about event patterns on this level, thanks to the Xtext-based implementation of the DSL and the user-friendly editor the framework comes with.
  • An integrated modeling environment. It comprises an editor for VEPL models (featuring syntax highlighting, on-the-fly validation, intelligent content-assist and automated generation of high-quality Java code); as well as wizards for enabling a more efficient workflow.
  • Tight integration with the VIATRA Incremental Query engine. This enables processing change events in EMF models, facilitating MDE techniques like streaming model transformations and operation-based model representation and reasoning.

Versions

Installation

Alternative #1: Install the latest release

You can do that directly from the Eclipse Marketplace: https://marketplace.eclipse.org/content/viatra

Alternative #2: Install the latest CI version

  1. Download the latest Eclipse Modeling package.
  2. Install the VIATRA 1.3.0 plugins or import their sources into a running Eclipse instance

User's manual

Developer's guide for setting up the environment

Please consult the general VIATRA DevEnv setup guide.

Important links