gistfile1.go

func buildIndexMapping() mapping.IndexMapping {
	indexMapping := bleve.NewIndexMapping()
	indexMapping.TypeField = "type"
	indexMapping.DefaultAnalyzer = en.AnalyzerName
	if err := indexMapping.AddCustomAnalyzer("custom_alt", map[string]interface{}{
		"type":      custom.Name,
		"tokenizer": unicode.Name,
		"token_filters": []string{
			detectlang.FilterName,
			en.PossessiveName,
			apostrophe.Name,
			lowercase.Name,
			camelcase.Name,
			//elision.Name,
			en.StopName,
			porter.Name,
		},
	}); err != nil {
		panic(err)
	}

	customTextFieldMapping := bleve.NewTextFieldMapping()
	customTextFieldMapping.Analyzer = "custom_alt"

	// a generic reusable mapping for english text
	englishTextFieldMapping := bleve.NewTextFieldMapping()
	englishTextFieldMapping.Analyzer = en.AnalyzerName

	// a generic reusable mapping for keyword text
	keywordFieldMapping := bleve.NewTextFieldMapping()
	keywordFieldMapping.Analyzer = keyword.Name

	keyMapping := bleve.NewDocumentMapping()
	keyMapping.AddFieldMappingsAt("id", keywordFieldMapping)
	keyMapping.AddFieldMappingsAt("fingerprint", keywordFieldMapping)
	keyMapping.AddFieldMappingsAt("user_id", englishTextFieldMapping)

	serviceMapping := bleve.NewDocumentMapping()
	serviceMapping.AddFieldMappingsAt("name", customTextFieldMapping)
	serviceMapping.AddFieldMappingsAt("description", englishTextFieldMapping)
	serviceMapping.AddFieldMappingsAt("urls", keywordFieldMapping)
	serviceMapping.AddSubDocumentMapping("public_keys", keyMapping)

	indexMapping.AddDocumentMapping("service", serviceMapping)
	indexMapping.AddDocumentMapping("key", keyMapping)

	if err := indexMapping.Validate(); err != nil {
		panic(err)
	}

	return indexMapping
}