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android / platform / packages / modules / GeoTZ / ba12310231ec3837d25114bd478094d0fbe21496
commitba12310231ec3837d25114bd478094d0fbe21496[log] [tgz]
authorJooyung Han <[email protected]>Mon Jun 24 11:18:54 2024 +0900
committerJooyung Han <[email protected]>Mon Jun 24 11:20:26 2024 +0900
tree34f15dbf729269fdb2fd4ba087f054841aa253d7
parenta67ae8884a85a97f950fa4e4e92a0ca772d634f7 [diff]
Deprecate zero hashtree

We're deprecating "zero hashtree" from APEX because it's too complicated
with little benefit.

Bug: 184914612
Test: m
Change-Id: If36e2fc942a56d7f3bad0ef5151ad756d6794df7
1 file changed
tree: 34f15dbf729269fdb2fd4ba087f054841aa253d7
  1. apex/
  2. app/
  3. common/
  4. data_pipeline/
  5. geotz_lookup/
  6. locationtzprovider/
  7. output_data/
  8. s2storage/
  9. tzbb_data/
  10. tzs2storage/
  11. validation/
  12. download-tzbb-files.sh
  13. OWNERS
  14. PREUPLOAD.cfg
  15. README.md
  16. 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

  • Generic 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 details.

tzs2storage

  • TZ-specific file reading / writing code and tools to support tzs2.dat generation on host, and the file's use on host and device. See tzs2storage/README.md for 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/.