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Tomas Havlicek

PROFILE

Tomas Havlicek

Over four months, Tomas Havlicek enhanced the project-ncl/sbomer repository by delivering 21 features and resolving 8 bugs, focusing on both frontend and backend improvements. He implemented ANTLR-based query parsing, integrated with Maven, and expanded the query language to support flexible SBOM data retrieval. Using Java, TypeScript, and React, Tomas refreshed the UI/UX, unified pagination, and improved navigation for better data discovery. His work included API design, error handling, and comprehensive documentation updates, ensuring maintainability and clarity. Through code refactoring, test alignment, and improved logging, Tomas addressed reliability and observability, demonstrating depth in both system design and implementation.

Overall Statistics

Feature vs Bugs

72%Features

Repository Contributions

77Total
Bugs
8
Commits
77
Features
21
Lines of code
4,876
Activity Months4

Work History

July 2025

44 Commits • 11 Features

Jul 1, 2025

July 2025 monthly summary for project-ncl/sbomer: Focused on establishing a robust parsing foundation, expanding end-to-end query capabilities, and improving maintainability and observability. Key features delivered include: (1) ANTLR parsing groundwork with grammar, listener, and class generation, integrated into Maven; Date usage removed to simplify tooling. (2) End-to-end query parsing improvements: working example, support for simple queries, a draft happy path for all attributes, and partial/error handling. (3) Events support and API cleanup: working events query, expanded test data/scripts, and refactors of EventsQueryListener and EventsApi for readability. (4) Grammar and parsing enhancements: rename STRING to STRING_IN_QUOTES, added an unexpected char, and tightened whitespace handling around operators; improved validation. (5) Build hygiene and documentation: moved ANTLR dependencies to the main pom, externalized versions, updated .gitignore and license header; updated time format and query language documentation; added logging and basic tests to increase observability.

June 2025

26 Commits • 6 Features

Jun 1, 2025

June 2025 monthly summary: Delivered a cohesive UI/UX refresh and backend/data-visualization enhancements across project-ncl/sbomer. Key UI work included contextPath support, a new UI banner, a version-switch control, a color banner, and landing-page notes, along with improved NextGen title and UI wording. Backend/API work introduced updated wrapper text, new generation JSON visualization, Request Event metadata page, manifest table/page adaptations, and removal of the Stats section, aligning with updated API contracts. Pagination was unified across the app, enabling pagination where appropriate while disabling event pagination to match data semantics. Additionally, code quality improvements (refactor, cleanup) and tests adaptation ensured reliability. UX polish and navigation improvements included moving the Next Gen bar, development state highlighting, and fixes to dashboard navigation and About wording. These changes collectively improve user data discovery, reduce maintenance burden, and position the product for future API evolutions.

March 2025

2 Commits • 1 Features

Mar 1, 2025

March 2025 monthly summary for project-ncl/sbomer: Focused on stabilizing manifest retrieval and expanding search capabilities. Key deliveries include a critical pagination fix for manifests and the introduction of a LIKE-based search for SBOM package URLs, improving reliability and discoverability. These changes enhance business value by reducing user friction, enabling faster access to assets, and providing more flexible query options for SBOM data.

February 2025

5 Commits • 3 Features

Feb 1, 2025

February 2025: Implemented key navigation and data discovery improvements for the SBOMER UI, delivering faster access to Generation Requests, Manifests, and Request Events, and enabling targeted filtering of Manifests by PURL. The work consolidates URL routing, enhances table interactions, and lays groundwork for scalable UX across the sbomer repository.

Activity

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Quality Metrics

Correctness90.2%
Maintainability91.0%
Architecture87.6%
Performance85.4%
AI Usage21.2%

Skills & Technologies

Programming Languages

ANTLRAsciiDocCSSGradleHTMLJavaJavaScriptReactSQLTypeScript

Technical Skills

ANTLRANTLR GrammarAPI DesignAPI DevelopmentAPI IntegrationBackend DevelopmentBuild ManagementCode ClarityCode FormattingCode RefactoringDatabaseDate and Time HandlingDependency ManagementDocumentationError Handling

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

project-ncl/sbomer

Feb 2025 Jul 2025
4 Months active

Languages Used

JavaScriptTypeScriptCSSHTMLReacttsxANTLRAsciiDoc

Technical Skills

Front End DevelopmentReactTypeScriptAPI DevelopmentAPI IntegrationBackend Development

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