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android / platform / packages / modules / GeoTZ / f78467ddeeaad1af94f92e960136209c527420d9
commitf78467ddeeaad1af94f92e960136209c527420d9[log] [tgz]
authorNeil Fuller <[email protected]>Wed Oct 20 12:26:42 2021 +0000
committerAutomerger Merge Worker <[email protected]>Wed Oct 20 12:26:42 2021 +0000
treefbf99d7ea7a54fb837f5d92c0c728791412d67a5
parentaf2e348bfac14d73fbe5022ddf137194201d3536 [diff]
parentdcf40ada2e9a6027c5e7851321cfe83dbdff8e23 [diff]
Update known diffs using geonames 2021-07-29 am: 716cad8834 am: 0b9c8df78e am: c32db41a29 am: dcf40ada2e

Original change: https://android-review.googlesource.com/c/platform/packages/modules/GeoTZ/+/1864558

Change-Id: Ifaeec9b8d5fee30b8765ce61389e0f8590f1647a
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/.