Introduction

This document is mainly used to describe some features and usage of the logger utility.

formatLogger

use formatLogger function to format logger.

Functions Overview and Limitations:

• Use cases: Single log parsing, custom configuration needed
• Limitations: Not for bulk processing, requires config params each time
• Resource usage: Low

Show code

<script setup lang="ts">
  import { formatLogger } from 'view-shadcn-ui'

  const formatLoggerValue = formatLogger("2024-12-04 23:14:27,765 INFO [main] io.edurt.datacap.service.initializer.InitializerConfigure [InitializerConfigure.java:100] Datacap registration enable: true")
</script>

formatMultipleLines

use formatMultipleLines function to format multiple lines.

Functions Overview and Limitations:

• Use cases: Batch processing of known log volume
• Limitations: Requires loading all logs at once, high memory usage for large volumes
• Resource usage: High, but fast processing

Show code

<script setup lang="ts">
  import { formatMultipleLines } from 'view-shadcn-ui'

  const formatMultipleLinesValue = formatMultipleLines([
    "2024-12-04 23:14:27,765 INFO [main] io.edurt.datacap.service.initializer.InitializerConfigure [InitializerConfigure.java:100] Datacap registration enable: true",
    "2024-12-04 23:14:27,765 INFO [main] io.edurt.datacap.service.initializer.InitializerConfigure [InitializerConfigure.java:100] Datacap registration enable: true",
    "2024-12-04 23:14:27,765 INFO [main] io.edurt.datacap.service.initializer.InitializerConfigure [InitializerConfigure.java:100] Datacap registration enable: true"
  ])

formatFromExample

use formatFromExample function to format from example.

Functions Overview and Limitations:

• Use cases: Unknown formats with sample logs, format learning required
• Limitations: Depends on sample quality, potential mismatches
• Resource usage: Medium

Show code

<script setup lang="ts">
  import { formatFromExample } from 'view-shadcn-ui'

  const formatFromExampleValue = formatFromExample(
      '12-01 23:59 ERROR MyApp: Hello',
      '01-01 12:00 INFO MyApp: Example',
      {
        timestamp: '01-01 12:00',
        level: 'INFO',
        logger: 'MyApp'
      }
  )
</script>

formatLoggerFromStream

use formatLoggerFromStream function to format from stream.

Functions Overview and Limitations:

• Use cases: Real-time processing of large logs, memory-constrained environments
• Limitations: Generator syntax required, no parallel processing
• Resource usage: Low, memory-efficient

Show code

<script setup lang="ts">
import { formatLoggerFromStream } from 'view-shadcn-ui'

const rows = [
  '12-01 23:59 ERROR MyApp: Hello',
  '12-01 23:59 INFO MyApp: World'
]
const formatLoggerFromStreamValue = [...formatLoggerFromStream(rows)]
</script>

Selection Guide

• Single log → formatLogger
• Special format learning → formatFromExample
• Large logs/Memory sensitive → formatLoggerFromStream
• Medium log volume/Quick processing → formatMultipleLines