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android / platform / packages / modules / GeoTZ / 42f0276e0c5bb4c9520e7318d09b5669af31d2c0
commit42f0276e0c5bb4c9520e7318d09b5669af31d2c0[log] [tgz]
authorNeil Fuller <[email protected]>Wed Apr 20 11:18:39 2022 +0000
committerAutomerger Merge Worker <[email protected]>Wed Apr 20 11:18:39 2022 +0000
tree018ec460e33d9ff0c5279bde751528e0c4cda8b0
parente22c7011cbf36a75ea942480d948f2cda3008744 [diff]
parent042cc25f2007a75e1366ecc388e7ccbb62f4cc98 [diff]
Speed up TzS2PolygonsToTzS2CellUnionsTest am: cac51dcbbf am: 042cc25f20

Original change: https://android-review.googlesource.com/c/platform/packages/modules/GeoTZ/+/2068288

Change-Id: Ic510ce084396c678a889e2a93237a48a76f88938
Signed-off-by: Automerger Merge Worker <[email protected]>
tree: 018ec460e33d9ff0c5279bde751528e0c4cda8b0
  1. apex/
  2. common/
  3. data_pipeline/
  4. geotz_lookup/
  5. locationtzprovider/
  6. output_data/
  7. s2storage/
  8. tzbb_data/
  9. validation/
  10. download-tzbb-files.sh
  11. OWNERS
  12. README.md
  13. 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/.