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bleve/analysis/datetime_parsers/flexible_go/flexible_go.go

59 lines
1.7 KiB
Go

// Copyright (c) 2014 Couchbase, Inc.
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software distributed under the
// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
// either express or implied. See the License for the specific language governing permissions
// and limitations under the License.
package flexible_go
import (
"fmt"
"time"
"github.com/couchbaselabs/bleve/analysis"
"github.com/couchbaselabs/bleve/registry"
)
const Name = "flexiblego"
type FlexibleGoDateTimeParser struct {
layouts []string
}
func NewFlexibleGoDateTimeParser(layouts []string) *FlexibleGoDateTimeParser {
return &FlexibleGoDateTimeParser{
layouts: layouts,
}
}
func (p *FlexibleGoDateTimeParser) ParseDateTime(input string) (time.Time, error) {
for _, layout := range p.layouts {
rv, err := time.Parse(layout, input)
if err == nil {
return rv, nil
}
}
return time.Time{}, analysis.INVALID_DATETIME
}
func FlexibleGoDateTimeParserConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.DateTimeParser, error) {
layouts, ok := config["layouts"].([]interface{})
if !ok {
return nil, fmt.Errorf("must specify layouts")
}
layoutStrs := make([]string, 0)
for _, layout := range layouts {
layoutStr, ok := layout.(string)
if ok {
layoutStrs = append(layoutStrs, layoutStr)
}
}
return NewFlexibleGoDateTimeParser(layoutStrs), nil
}
func init() {
registry.RegisterDateTimeParser(Name, FlexibleGoDateTimeParserConstructor)
}