Difference between revisions of "GCube Development"

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'''[http://www.gcube-system.org/ gCube]''' is a Software System whose development activity is ongoing and performed according to the [http://en.wikipedia.org/wiki/Agile_software_development Agile software development] methodology. This implies that software components are developed in relatively short subsequent iterations, each containing the tasks needed to release new functionality - planning, requirement analysis, detailed design, implementation, integration, testing and documentation. This leads to a very flexible and dynamic development activity that need to be proper documented.  
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'''gCube''' (http://www.gcube-system.org) is a Software System whose development activity is ongoing and performed according to the [http://en.wikipedia.org/wiki/Agile_software_development Agile software development] methodology.  
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This implies that software components are developed in relatively short subsequent iterations, each containing the tasks needed to release new functionality - planning, requirement analysis, detailed design, implementation, integration, testing and documentation. This leads to a very flexible and dynamic development activity that needs to be proper documented.  
  
This page documents the ''current status'' of the gCube system as well as presents a series of ''statistics and metrics on its evolution'' including progression of source code over time, the developers activity and the results of the automatic build.
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Such a technology is intrinsically complex because of the amount of standards, specifications, technologies, patterns and approaches put in place to guarantee a high quality (reliable, secure, autonomic, fault resilient, etc.) software system. This risks to overwhelm developers and distract them from the specific application logic of the services they are willing to develop.
  
Moreover, because of the distinguishing characteristics of '''[https://wiki.gcore.research-infrastructures.eu/ gCore]''', a gCube constituent that is a system by its own, in the rest of this wiki the data of both these systems are separately presented.
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This software system has been implemented with the support of the European Commission in the context of a series of projects including [[#D4Science-II_Development|D4Science-II]], [[#iMarine_Development|iMarine]], [[#EUBrazilOpenBio_Development|EUBrazilOpenBio]], [[#ENVRI_Development|ENVRI]].
  
=== Development Status ===
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== D4Science-II Development ==
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In the context of the D4Science-II project, the gCube technology has been developed with two synergistic lines of activity:
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* '''''Knowledge Ecosystem Implementation''''' whose objectives are (i) to develop a number of technology realising common practices, standards and solutions promoting interoperability with other systems and infrastructures ([https://networking.wiki.d4science-ii.research-infrastructures.eu/networking/index.php/Interoperability_Solutions Interoperability Solutions]) and (ii) to enhance and consolidate the gCube system to match the needs of the ecosystem approach. This activity is documented via a '''''[[DJRA1.1 Report on Knowledge Ecosystem Supporting Technology Development|dedicated report]]''''';
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* '''''Scenario Specific Implementation''''' whose objective was to cover the design and implementation of case-specific needs for each particular interoperable infrastructure. Each case is analyzed and the system to implement it, on the side of the interoperating infrastructure, is designed in detail. Following the initial design, each case implements the specific components required so that it can exploit the facilities offered by the evolving ecosystem core and it can export the identified interoperable features to the rest of the ecosystem cases. This activity is documented  via a '''''[[DJRA2.1 Report on Scenario Specific Technology Development|dedicated report]]''''';
  
gCube has been designed by following the principles of [http://en.wikipedia.org/wiki/Software_componentry Component-based software engineering], thus it consists of various software components interacting each other to implement the expected functionality.
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== iMarine Development ==
  
The [[GCube Architecture]] section describes the resulting ''Reference Architecture'', the main sub-systems (i.e. logical group of components), their constituents and their relationships.
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This activity is ongoing. It is documented via a number of tickets in the [https://issue.imarine.research-infrastructures.eu/ iMarine TRAC].
  
The system has been implemented according to the [http://en.wikipedia.org/wiki/Service-oriented_architecture Service Oriented Architecture] principles and related standards while the ''Presentation-oriented'' components are based on [http://en.wikipedia.org/wiki/Portlet portlets]. It currently consists of:
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== EUBrazilOpenBio Development ==
* 50 Web Services;
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* 11 Software Libraries;
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* 19 Portlets.
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The [[gCube Development Status Report]] details on the current status each of them.
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This activity was active during the period 2011-2013. It was documented via a number of tickets in the [https://issue.eubrazilopenbio.research-infrastructures.eu/ EUBrazilOpenBio TRAC].
  
The status of gCore is captured by its latest [https://wiki.gcore.research-infrastructures.eu/gCube/index.php/Downloads release].
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== ENVRI Development ==
 
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This activity is ongoing. It is documented via a dedicated page on the [http://www.envri.eu ENVRI Website].
=== Code Statistics ===
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D4Science uses [http://www.statsvn.org/ StatSVN] to retrieve information from the project software repository and to generate various tables and charts describing the project development. In particular, the following reports are available.
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{| align="center" width="80%"
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! bgcolor="yellow"|gCube !! bgcolor="yellow"|gCore
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|-
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| align="center"| [https://issue.d4science.research-infrastructures.eu/chrome/site/statsvn/loc.html Timeline for the Lines of Code (LOC)]  || align="center"| [https://issue.gcore.research-infrastructures.eu/chrome/site/statsvn/loc.html Timeline for the Lines of Code (LOC)]
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|-
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| align="center"| [https://issue.d4science.research-infrastructures.eu/chrome/site/statsvn/developers.html Lines of Code per Developer ]  || align="center"| [https://issue.gcore.research-infrastructures.eu/chrome/site/statsvn/developers.html Lines of Code per Developer]
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|-
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| align="center"| [https://issue.d4science.research-infrastructures.eu/chrome/site/statsvn/churn.html LOC Evolution and Changes per Day] || align="center"| [https://issue.gcore.research-infrastructures.eu/chrome/site/statsvn/churn.html LOC Evolution and Changes per Day]
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|-
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| align="center"| [https://issue.d4science.research-infrastructures.eu/chrome/site/statsvn/repomap.html Software Repository Hierarchical View] || align="center"| [https://issue.gcore.research-infrastructures.eu/chrome/site/statsvn/repomap.html Software Repository Hierarchical View]
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|}
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=== Automated Builds ===
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D4Science relies on the results of the [http://etics.web.cern.ch/etics/ ETICS] - an EC funded project - to automate the way its software (gCube and gCore) is built and tested. In particular, the project has put in place mechanisms to perform a daily build with the latest version of the code committed in the project software repository. This activity leads to the production of (''i'') a report of the build activity and (''ii'') a set of software artifacts including the software package, the source code and the documentation. These are available below.
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{| align="center" width="50%"
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! bgcolor="yellow"|gCube !! bgcolor="yellow"|gCore
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|-
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| align="center"|[https://grids16.eng.it/BuildReport/builds/recent%20builds/org.gcube.HEAD Build Report] || align="center"|[https://grids16.eng.it/BuildReport/builds/recent%20builds/org.gcore.HEAD Build Report]
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|-
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| align="center"|[http://software.d4science.research-infrastructures.eu/PackagesServlet?version=org.gcube.HEAD&title=development Development Version] || align="center"|[http://software.d4science.research-infrastructures.eu/GCoreServlet?version=org.gcore.HEAD&title=development Development Version]
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|}
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=== Download ===
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The release of the software is regulated by a [https://integration.wiki.d4science.research-infrastructures.eu/integration/index.php/Main_Page Integration, Testing and Distribution] procedure that aim at building a deployable, reliable and documented software distribution.
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The final result of this activity materializes in a set of ''gCube'' and ''gCore distributions'' made available through the [http://software.d4science.research-infrastructures.eu/index.jsp gCube Distribution Site].
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Latest revision as of 15:43, 8 July 2016

gCube (http://www.gcube-system.org) is a Software System whose development activity is ongoing and performed according to the Agile software development methodology. This implies that software components are developed in relatively short subsequent iterations, each containing the tasks needed to release new functionality - planning, requirement analysis, detailed design, implementation, integration, testing and documentation. This leads to a very flexible and dynamic development activity that needs to be proper documented.

Such a technology is intrinsically complex because of the amount of standards, specifications, technologies, patterns and approaches put in place to guarantee a high quality (reliable, secure, autonomic, fault resilient, etc.) software system. This risks to overwhelm developers and distract them from the specific application logic of the services they are willing to develop.

This software system has been implemented with the support of the European Commission in the context of a series of projects including D4Science-II, iMarine, EUBrazilOpenBio, ENVRI.

D4Science-II Development

In the context of the D4Science-II project, the gCube technology has been developed with two synergistic lines of activity:

  • Knowledge Ecosystem Implementation whose objectives are (i) to develop a number of technology realising common practices, standards and solutions promoting interoperability with other systems and infrastructures (Interoperability Solutions) and (ii) to enhance and consolidate the gCube system to match the needs of the ecosystem approach. This activity is documented via a dedicated report;
  • Scenario Specific Implementation whose objective was to cover the design and implementation of case-specific needs for each particular interoperable infrastructure. Each case is analyzed and the system to implement it, on the side of the interoperating infrastructure, is designed in detail. Following the initial design, each case implements the specific components required so that it can exploit the facilities offered by the evolving ecosystem core and it can export the identified interoperable features to the rest of the ecosystem cases. This activity is documented via a dedicated report;

iMarine Development

This activity is ongoing. It is documented via a number of tickets in the iMarine TRAC.

EUBrazilOpenBio Development

This activity was active during the period 2011-2013. It was documented via a number of tickets in the EUBrazilOpenBio TRAC.

ENVRI Development

This activity is ongoing. It is documented via a dedicated page on the ENVRI Website.