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// 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
import (
"fmt"
"time"
"github.com/blevesearch/bleve/analysis"
"github.com/blevesearch/bleve/registry"
)
const Name = "flexiblego"
type DateTimeParser struct {
layouts []string
}
func New(layouts []string) *DateTimeParser {
return &DateTimeParser{
layouts: layouts,
}
}
func (p *DateTimeParser) 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.ErrInvalidDateTime
}
func DateTimeParserConstructor(config map[string]interface{}, cache *registry.Cache) (analysis.DateTimeParser, error) {
layouts, ok := config["layouts"].([]interface{})
if !ok {
return nil, fmt.Errorf("must specify layouts")
}
var layoutStrs []string
for _, layout := range layouts {
layoutStr, ok := layout.(string)
if ok {
layoutStrs = append(layoutStrs, layoutStr)
}
}
return New(layoutStrs), nil
}
func init() {
registry.RegisterDateTimeParser(Name, DateTimeParserConstructor)
}
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