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android / platform / packages / modules / GeoTZ / 716cad88344ce3d8e34f5d92cbbc125fb89b5a53
commit716cad88344ce3d8e34f5d92cbbc125fb89b5a53[log] [tgz]
authorNeil Fuller <[email protected]>Thu Jul 29 15:37:45 2021 +0100
committerNeil Fuller <[email protected]>Wed Oct 20 10:53:16 2021 +0100
treefbf99d7ea7a54fb837f5d92c0c728791412d67a5
parent76aace90a443293045733871d98b8eaea6bba791 [diff]
Update known diffs using geonames 2021-07-29

The latest geonames data incorporates a large number of fixes for China
cities.

Bug: 163741462
Test: Re-run the diffing tool, no updates
Merged-In: I514ed7a32decc5a1d408dc30f396a49c00327c6a
Change-Id: I514ed7a32decc5a1d408dc30f396a49c00327c6a
4 files changed
tree: fbf99d7ea7a54fb837f5d92c0c728791412d67a5
  1. apex/
  2. common/
  3. data_pipeline/
  4. geotz_lookup/
  5. locationtzprovider/
  6. output_data/
  7. s2storage/
  8. tzbb_data/
  9. validation/
  10. Android.bp
  11. download-tzbb-files.sh
  12. OWNERS
  13. README.md
  14. run-data-pipeline.sh
README.md

This directory contains code, tools and data for the AOSP reference location time zone provider. Location time zone providers are used for location-based time zone detection on Android. See Android's android.service.timezone.TimeZoneProviderService class for more details.

Directory structure

apex

  • Files associated with a proposed mainline module APEX to hold the AOSP reference location time zone provider.

common

  • Utility code shared between several subdirectories.

data_pipeline

  • Code for a host sample / reference data generation pipeline. See run-data-pipeline.sh below.

geotz_lookup

  • A high-level API for performing time zone ID lookups for a location using the tzs2.dat file. Supports host and device usage.

locationtzprovider

  • A reference location time zone provider that uses AOSP APIs to obtain location and the geotz_lookup APIs to obtain the time zone IDs to pass to the platform.

output_data

  • Holds the tzs2.dat file generated by run-data-pipeline.sh along with the associated license files.

s2storage

  • File reading / writing code and tools to support tzs2.dat generation on host, and the file's use on host and device. See s2storage/README.md for format details.

tzbb_data

  • Data / licenses from the external timezone-boundary-builder project. Used as input for the reference data generation pipeline.

validation

  • Tooling to help validate the tzs2.dat file against other data sources.

Data file update tools

download-tzbb-files.sh

run-data-pipeline.sh

  • Runs the data_pipeline data generation pipeline. It takes data from tzbb_data/, processes it, and puts the resulting tzs2.dat file in output_data/.