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Elasticsearch with Czech analyzer

Docker image: openlobby/openlobby-es-czech

Batteries included:

  • ICU Analysis Plugin
  • Czech Hunspell dictionaries (from OpenOffice)

X-Pack plugin is removed.

Usage

Create Index with these settings:

{
    'settings': {
        'analysis': {
            'filter': {
                'czech_stop': {
                    'type': 'stop',
                    'stopwords': '_czech_',
                },
                'czech_stemmer': {
                    'type': 'stemmer',
                    'language': 'czech',
                },
                'cs_CZ': {
                    'type': 'hunspell',
                    'locale': 'cs_CZ',
                    'dedup': True,
                },
                'czech_synonym': {
                    'type': 'synonym',
                    'synonyms_path': 'analysis/cs_CZ/synonym.txt',
                },
            },
            'analyzer': {
                'czech': {
                    'tokenizer': 'standard',
                    'filter': [
                        'icu_folding',
                        'lowercase',
                        'czech_synonym',
                        'czech_stop',
                        'czech_stemmer',
                        'cs_CZ',
                    ]
                }
            }
        }
    }
}

You can use 'czech' analyzer on text fields now.

There is custom dictionary of synonyms included. You can adjust it for your needs or remove it from analyzer settings.

Build

If you don't want to use pre-built container from openlobby/openlobby-es-czech you can build it locally: make build

Run for local development

You need Docker Compose.

  • Run on port 9200: make run
  • Stop: make stop
  • Stop and/or remove all data: make destroy

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Elasticsearch with Czech language support.

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