# jacksu/utils4s

scala、spark使用过程中，各种测试用例以及相关资料整理

Repository: https://github.com/jacksu/utils4s
Canonical: https://ross.abutalabs.com/products/utils4s
Homepage: http://jacksu.github.io/utils4s
Language: Scala
License Family: other
Topics: spark, scala-demo, scala-spark, json4s, breeze, scala, akka, spark-streaming
Last push: 2019-02-09T02:17:18+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3996, "days_push": 2763, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1079, forks 420 (observed 2026-08-28T04:03:29.965761+00:00)

## What it is
A curated collection of Scala and Spark example code, demos, and learning resources covering common utility libraries (json4s, breeze, akka, nscala-time) and Spark core, streaming, SQL, and machine learning. It serves as a hands-on reference for Scala syntax learning and big data development on the JVM.

## Use cases
- learn scala syntax with example code
- find spark streaming test cases
- see json4s usage examples in scala
- learn breeze linear algebra in scala
- get started with spark sql and spark ml
- find scala library demos like akka and better-files

## When to choose
- you are learning Scala or Spark and want runnable example code
- you want quick demos of common Scala utility libraries
- you need reference snippets for Spark core, streaming, or SQL

## When to avoid
- you need a production-ready library to depend on
- you need maintained, up-to-date Spark or Scala examples
- you need a project with an active community or license

## Facets
- artifact type: learning-resource
- maturity: abandoned
- function: developer-tools, data-science, machine-learning, streaming, serialization, logging, testing, date-time, math
- domain: big-data, data-science, developer-tools, tutorials, machine-learning
- platform: jvm
- tags: scala, spark, spark-streaming, spark-sql, json4s, breeze, akka, demo-code, examples, big-data

## Member repositories
- jacksu/utils4s (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:29.965761+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:53:04.235623+00:00, confidence not recorded.
  - readme: https://github.com/jacksu/utils4s (fetched 2026-08-28T04:03:29.965761+00:00, sha daebb4a1d1a0)
  - homepage: http://jacksu.github.io/utils4s (fetched 2026-08-29T12:53:57.728963+00:00, sha aac29918e1c0)
- Data as of 2026-08-30T08:39:29.467469+00:00.