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android / platform / packages / modules / GeoTZ / cac51dcbbfeead7e46c03ffe6117fbe614bf1daf
commitcac51dcbbfeead7e46c03ffe6117fbe614bf1daf[log] [tgz]
authorNeil Fuller <[email protected]>Tue Apr 19 19:55:56 2022 +0100
committerNeil Fuller <[email protected]>Tue Apr 19 18:59:57 2022 +0000
tree018ec460e33d9ff0c5279bde751528e0c4cda8b0
parent4c46e5ee17bb147b37421d9b64003ae9afa500b5 [diff]
Speed up TzS2PolygonsToTzS2CellUnionsTest

Speed up TzS2PolygonsToTzS2CellUnionsTest because it takes too long
during automated test runs like treehugger.

This has been achieved by:
1) Picking a much smaller / less complex time zone (Pacific/Pitcairn Vs
   Europe/London, which covers the whole UK and some surroundings)
2) Switching to S2 level 12.

Execution time was 3.7 seconds locally.

Bug: 181254187
Test: atest TzS2PolygonsToTzS2CellUnionsTest
Change-Id: Ia7b4d348832309ba603b328752eee9d18dff2e4c
5 files changed
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/.