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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Fixed

  • Add quantitykind constants for those quantitykinds that are defined in the currency file in QUDT.

6.8.0 - 2024-12-11

Added

  • Add Unit.altSymbols
  • Add Qudt.parseUnit()
  • Add unit index structures in Qudt to improve performance of unit searches and factor unit matching

Changed

6.7.0 - 2024-04-04

Changed

6.5.0 - 2024-03-17

Added

  • Add model classes PhysicalConstant and ConstantValue, populate from data.
  • Add tool for generating the decimal/scientific values for QUDT
  • Add description to Unit, QuantityKind and PhysicalConstant (i.e. the string value of dcterms:description)

Changed

  • Update to qudt-public-repo@16f1b30
  • Handle TemperatureDifference edge case (ignore offset when converting)

6.4.3 - 2024-02-20

Added

  • Add units unit:KiloGM-PER-PA-SEC-M, unit:M2-K-PER-W, KiloM2, CentiM4

Changed

  • Improve qudtlib-tools for contributions to QUDT

6.4.2 - 2024-02-20

6.4.1 - 2024-02-08

6.4.0 - 2024-02-08

Added

  • boolean Unit.generated() method indicating whether a unit was generated during the QUDTLib build process (and is therefore not in QUDT)
  • Added two units and a quantity kind pending upstream PR merging
  • New class io.github.qudtlib.QudtMainForDebugging in qudtlib-main-rdf that can be used for thread-debugging the non-hardcoded static initializer when other methods fail.
  • FactorUnits.getConversionMultiplierOpt obtains the multiplier only if all factor units have one, instead of falling back to using 1.0.

Changed

  • Bump qudtlib version to 2.1.35
  • Refactoring and extensions of qudtlib-tools to keep up with incoming changes and slowly working toward a state in which the tools can be used in github actions for correctness checks.
  • Factor units can now be sorted for a given unit IRI, resulting in symbols being generated with expected ordering of factors.
  • Data generation input files have been renamed for consistency

6.3.0 - 2024-02-03

Added

  • Qudt.unitsFrom* methods for obtaining units that match a given specification expressed via factor units.
  • FactorUnits FactorUnits.withoutScaleFactor() to get the FactorUnits object with scaleFactor 1.

Changed

  • Qudt.unitsFromFactorUnits has been changed to give highest priority to units with factorUnits equal to the requested ones.

Deprecated

  • Qudt.derivedUnitsFrom* have been deprecated. The implementations have become slower. The alternatives are listed in the code comments. The replacing methods have been renamed to fit better with the other unit-related methods and return List<Unit> instead of Set<Unit>. The reason is that the list is sorted according to match quality, which helps clients to choose the best after filtering.

6.2.0 - 2024-01-11

Changed

  • Simplified BEST_MATCH algorithm for obtaining a unit from a set of factor units. Recent additions to the data model (isScalingOf and factorUnit relationships) led to a larger set of candidates and the complexity of the previous algorithm led to very high computation time.
  • Changed the behaviour of Unit.hasFactorUnits() such that for a FactorUnits object with only one top-level factor unit (such as [N^1]), the method returns false.

Fixed

  • unit:MHO, unit:MicroMHO: fix dimension vector and quantity kind
  • unit:F: fix unit:isScalingOf

6.1.0 - 2024-01-05

Added

  • Josh Feingold(@occamsystems) contributed the ability to add units and quantity kinds at runtime, along with a number of improvements

6.0.3 - 2023-12-20

Added

  • Created CONTRIBUGING.md

Fixed

  • Bugfix by Josh Feingold(@occamsystems): Offset difference and scale difference no longer throw exceptions when the provided Units do not have explicit conversion values

6.0.2 - 2023-12-18

6.0.1 - 2023-12-18

6.0.0 - 2023-12-15

Added

  • Add (crude) tools for inspecting QUDT units/quantitykinds and for generating triples for unit/quantitykind contributions
  • Add simple SHACL validation for contribution
  • Add some units/quantitykinds for the construction domain
  • Generate all possible localnames from factor units for checking if one of them is used for a unit
  • Add Unit.getIriLocalname()
  • Add member ucumCode with getters/setters and builder
  • Add setFactorUnits() to Unit.Definition
  • Add Qudt.currencyFromLocalname()
  • Add Qudt.isBroaderQuantityKind()
  • Add FactorUnits.getDimensionVectorIri()
  • Add inspection of Factor unit tree in qudtlib-tools

Changed

  • Make getSymbol() return Optional

Fixed

  • handling of currency units such that they can now also be factor units
  • Exclude unit:Kilo-FT3 from QUDTLib because it breaks unit localname parsing
  • Implement a not so recent change in QUDTLib whereby quantitykinds are no longer skos:broader but qudt:exactMatch in certain conditions. See #61. The change adds an exactMatch property to the QuantityKind and Unit classes and uses the exactMatch property where appropriate in algorithms.
  • Improve quantitykind extraction query
  • Fix use of Unit constructor

5.0.1 - 2023-09-21

Fixed

  • quantitykind:Currency was missing in 5.0.0. Its definition was moved to the currencies file in the QUDT repo which used to be ingested only for units code generation. Now it is also used for quantity kinds code generation.

5.0.0 - 2023-09-15

Changed

4.3.0 - 2023-03-10

Added

  • Added currency symbols for major currencies

4.2.0 - 2023-03-03

Added

  • Add qudt namespace to Qudt.NAMESPACES

Changed

4.1.0 - 2023-02-13

Added

  • Corresponding unit in system functionality - finds the best matching units to a given unit in a desired unit system, such as the corresponding unit for inch in the SI system (centimeter).

4.0.0 - 2023-02-07

Added

  • SystemOfUnits as a model class
  • Several manual links from units to their base units or factor units

Changed

  • BREAKING: Made QUDTlib data model immutable, changed instantiation to force use of builders.

3.1.0 - 2023-01-20

Added

  • Temporarily added quantitykinds PositivePlaneAngle, NonNegativeLength, PositiveLength and Count until upstream upstream PR 630 and upstream PR 631 are released.

Changed

3.0.2 - 2022-12-06

Added

  • Add quantity kinds for positive dimensionless ratio and normalized dimensionless ratio temporarily until the canges from the upstream PR are released.

3.0.1 - 2022-12-01

Changed

  • Fix bug in unit comparison

3.0.0 - 2022-11-30

Added

  • Add QuantityKinds and Units required to map IFC to QUDT. These are added temporarily until an upstream release of QUDT.

Changed

  • BREAKING: Modify the selection of units matching a set of factor units. The matching algorithm as well as the scoring algorithm of matching units was adapted. With this change, there are only two options for the client: get all matching units or get the one that matches best.
  • Upgrade to QUDT v2.1.22. All data temporariy added via /qudtlib-data-gen/src/main/resources/triples-to-add-to-(units|quantitykinds).ttl while waiting for PRs to be released upstream have been removed.

2.2.0 - 2022-10-28

Changed

  • Update QUDT to 2.1.21
  • Improve the release process on GitHub

2.1.1 - 2022-10-25

Added

  • Add triples missing in Qudt v2.1.20 temporarily until the upstream fix is released.

Changed

  • All (add|set).+ methods of Unit, QuantityKind, and Prefix now require non-null parameters. Not performing this check led to a bug in QUDT v2.1.20 to slip through.

2.1.0 - 2022-10-24

Changed

Fixed

  • Fix MW/mW derivation bug (#27) by adding missing QUDT triples manually (until the upstream fix is released)

2.0.1 - 2022-10-21

Changed

  • Improve Changelog handling during release

2.0.0 - 2022-10-20

Added

  • Add module qudtlib-js-gen, which generates Typescript code to instantiate units, quantitykinds and prefixes for qudtlib/qudtlib-js
  • Add project qudtlib-js as a git submodule to allow the build process to generate javascript into that project
  • Add Qudt.*required static methods that return e.g. Unit, not Optional<Unit> and throw an Exception if there is nothing to return.

Changed

  • A number of breaking changes without prior deprecations, sorry about that.
  • Upgrade to QUDT v2.1.19
  • Move any code from Qudt to model classes (Unit, QuantityValue, etc.) if the code does not directly depend on pre-instantiated units.
  • Refactor Qudt.* static methods to return Optionals where appropriate
  • Made Qudt.convert(BigDecimal, Unit, Unit) return BigDecimal (was:QuantityValue) while Qudt.convert(QuantityValue, Unit) still returns a QuantityValue. It's cleaner: you get what you provide.
  • Refactor factor unit matching (fixing some bugs in the process)
  • Fix errors in RDF generation
  • Fix errors in generation of constants (such as Qudt.Units.M)
  • Improve unit tests
  • Change toString() methods in a number of model classes for better readability
  • Upgrade dependencies to latest versions

Removed

  • Remove unused code

1.0.0 - 2022-07-21

Added

  • Initial release.