go_tooling/blevedemo/blevedemo.go

package main

import (
	"fmt"
	"log"
	"os"

	"github.com/blevesearch/bleve"
)

const IndexPath = "example.bleve"

type Named struct {
	Name string
}

func createIndex() bleve.Index {
	// open a new index
	mapping := bleve.NewIndexMapping()
	index, err := bleve.New(IndexPath, mapping)
	if err != nil {
		panic(err)
	}

	// index some data
	err = index.Index("latin", Named{"quadra"})
	if err != nil {
		panic(err)
	}
	err = index.Index("pirate", Named{"The heavy-hearted kraken fiery breaks the jack."})
	if err != nil {
		panic(err)
	}
	err = index.Index("sf", Named{"Cosmonauts experiment from flights like the final ships."})
	if err != nil {
		panic(err)
	}
	err = index.Index("cuisine", Named{"Try breaking steak pilaf garnished with the gravy."})
	if err != nil {
		panic(err)
	}
	err = index.Index("esoteric", "The death of fearing doers is unbiased, final and from the heart.")
	if err != nil {
		panic(err)
	}
	return index
}

func main() {
	index, err := bleve.Open(IndexPath)
	if err != nil {
		if err == bleve.ErrorIndexPathDoesNotExist {
			index = createIndex()
		} else {
			panic(err)
		}
	}
	defer index.Close()

	// search for some text
	//query := bleve.NewMatchQuery(os.Args[1])
	query := bleve.NewFuzzyQuery(os.Args[1])
	query.SetFuzziness(2)
	search := bleve.NewSearchRequest(query)
	searchResults, err := index.Search(search)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println(searchResults)
}