https://github.com/ralgond/elasticsearch-edgengram2-token-filter
Yet another a edge n gram token filter for elasticsearch
https://github.com/ralgond/elasticsearch-edgengram2-token-filter
elasticsearch filter plugin
Last synced: 7 months ago
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Yet another a edge n gram token filter for elasticsearch
- Host: GitHub
- URL: https://github.com/ralgond/elasticsearch-edgengram2-token-filter
- Owner: ralgond
- License: apache-2.0
- Created: 2021-03-05T08:46:20.000Z (over 4 years ago)
- Default Branch: main
- Last Pushed: 2021-03-05T10:56:27.000Z (over 4 years ago)
- Last Synced: 2025-01-09T06:47:01.556Z (9 months ago)
- Topics: elasticsearch, filter, plugin
- Language: Java
- Homepage:
- Size: 14.6 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# elasticsearch-edgengram2-token-filter
Yet another a edge n gram token filter.
Fow example, it would map ["EVA", "EGG", "京"] to an array [E, EV, EVA, E, EG, EGG, 京].
The difference between edge_ngram and edge_ngram2 is that edge_ngram2 can offer the offsets to highlight partial word.
## How to use
1. git clone git@github.com:ralgond/elasticsearch-edgengram2-token-filter.git
2. cd elasticsearch-edgengram2-token-filter
3. mvn clean package
4. copy target/releases/elasticsearch-edgengram2-token-filter-7.2.1.zip to the plugins directory of elasticsearch.
5. upzip elasticsearch-edgengram2-token-filter-7.2.1.zip to directory elasticsearch-edgengram2-token-filter-7.2.1
6. restart elasticsearch
7. write some code in kibana as follow:
```
DELETE idx-15
PUT idx-15
{
"settings": {
"analysis": {
"analyzer": {
"my_analyzer": {
"tokenizer": "standard",
"filter": [
"lowercase",
"my_stop",
"edge_ngram2"
]
}
},
"filter": {
"my_stop": {
"type": "stop",
"stopwords": "_english_"
}
}
}
},
"mappings": {
"properties": {
"title": {
"type": "text",
"analyzer": "my_analyzer",
"search_analyzer": "standard"
}
}
}
}
GET idx-15/_search
{
"query": {
"match": {
"title": {
"query": "EV"
}
}
},
"highlight": {
"fields": {
"title": {}
}
}
}
```