powsybl/powsybl-core
Oct 2025 – Jun 2026
3 Months active
Languages Used
Java
Technical Skills
API DesignBackend DevelopmentConfiguration ManagementFile I/OJavaAPI Development
snoopfab
PROFILE
Snoopfab
Over a three-month period, contributed to the powsybl-core repository by developing three major backend features focused on power systems modeling. Delivered flexible extension filtering for IIDM import/export, enabling precise data governance through included and excluded lists. Implemented comprehensive IIDM properties support and serialization, updating XML schemas and refactoring code for maintainability and extensibility. Built a 3D convex-volume-based reactive power limit diagram (PQU), introducing new APIs for geometric modeling and robust error handling. All work was completed in Java, leveraging skills in API design, object-oriented programming, and unit testing to enhance reliability, integration, and future extensibility of the codebase.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
3Total
Bugs
0
Commits
3
Features
3
Lines of code
3,560
Activity Months3
Your Network
44 peopleWork History
June 2026
1 Commits • 1 Features
Jun 1, 2026In 2026-06, delivered a robust Reactive Power Limit Diagram (PQU) feature for powsybl-core and reinforced code stability around reactive limit modeling. The feature enables defining reactive power limits via a 3D convex volume defined by user planes, with API support to add planes, check point containment, and improved error handling and documentation. Key fixes include compilation improvements for ReactiveCapabilityShape and a critical LP-path variable indexing bug in ReactiveCapabilityShapePolyhedron, backed by regression tests to lock LP behavior (vector order: Q, U, P). A safety guard was added to exports so networks containing reactive capability shape limits raise NotImplementedException unless beta-feature export is forced, reducing downstream risks. Overall, these changes enable accurate, plan-ready reactive limit modeling with safer exports and stronger test coverage, contributing to more reliable grid planning and operation workflows. Technologies/skills demonstrated include Java API design, 3D geometry modeling, LP formulation considerations, regression testing, and comprehensive documentation.
1 Commits • 1 Features
Jun 1, 2026In 2026-06, delivered a robust Reactive Power Limit Diagram (PQU) feature for powsybl-core and reinforced code stability around reactive limit modeling. The feature enables defining reactive power limits via a 3D convex volume defined by user planes, with API support to add planes, check point containment, and improved error handling and documentation. Key fixes include compilation improvements for ReactiveCapabilityShape and a critical LP-path variable indexing bug in ReactiveCapabilityShapePolyhedron, backed by regression tests to lock LP behavior (vector order: Q, U, P). A safety guard was added to exports so networks containing reactive capability shape limits raise NotImplementedException unless beta-feature export is forced, reducing downstream risks. Overall, these changes enable accurate, plan-ready reactive limit modeling with safer exports and stronger test coverage, contributing to more reliable grid planning and operation workflows. Technologies/skills demonstrated include Java API design, 3D geometry modeling, LP formulation considerations, regression testing, and comprehensive documentation.
June 2026
March 2026
1 Commits • 1 Features
Mar 1, 2026Concise monthly summary for 2026-03: Delivered IIDM Properties Support and Serialization in powsybl-core, enabling all IIDM objects to bear properties with serialization/deserialization across components. This work also updates XML schemas, raises the minimum properties version, and includes targeted refactoring and test coverage to improve maintainability and future extensibility. The changes position the project for richer metadata handling and easier integration with downstream tools while preserving backward compatibility.
March 2026
1 Commits • 1 Features
Mar 1, 2026Concise monthly summary for 2026-03: Delivered IIDM Properties Support and Serialization in powsybl-core, enabling all IIDM objects to bear properties with serialization/deserialization across components. This work also updates XML schemas, raises the minimum properties version, and includes targeted refactoring and test coverage to improve maintainability and future extensibility. The changes position the project for richer metadata handling and easier integration with downstream tools while preserving backward compatibility.
October 2025
1 Commits • 1 Features
Oct 1, 2025October 2025: Implemented flexible extension filtering for IIDM import/export in powsybl-core, enabling included and excluded extension lists. The change includes refactored filtering methods, plus updated tests and documentation to ensure reliability and ease of adoption. This feature reduces data noise, improves data governance for IIDM workflows, and accelerates integration with downstream systems. No major bugs fixed this month. Key commit contributing to the change: 992dcd1cd7069090836c6573d44bfb38fa4d1501.
1 Commits • 1 Features
Oct 1, 2025October 2025: Implemented flexible extension filtering for IIDM import/export in powsybl-core, enabling included and excluded extension lists. The change includes refactored filtering methods, plus updated tests and documentation to ensure reliability and ease of adoption. This feature reduces data noise, improves data governance for IIDM workflows, and accelerates integration with downstream systems. No major bugs fixed this month. Key commit contributing to the change: 992dcd1cd7069090836c6573d44bfb38fa4d1501.
October 2025
Activity
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Quality Metrics
Correctness83.4%
Maintainability83.4%
Architecture83.4%
Performance80.0%
AI Usage40.0%
Skills & Technologies
Programming Languages
Java
Technical Skills
API DesignAPI DevelopmentBackend DevelopmentConfiguration ManagementFile I/OJavaObject-Oriented ProgrammingSoftware DevelopmentUnit Testing
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