Switch from Godep to go vendoring

vendor/github.com/blevesearch/bleve/query_date_range.go

@@ -0,0 +1,117 @@
+//  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 bleve
+
+import (
+	"fmt"
+	"math"
+
+	"github.com/blevesearch/bleve/index"
+	"github.com/blevesearch/bleve/numeric_util"
+	"github.com/blevesearch/bleve/search"
+	"github.com/blevesearch/bleve/search/searchers"
+)
+
+type dateRangeQuery struct {
+	Start          *string `json:"start,omitempty"`
+	End            *string `json:"end,omitempty"`
+	InclusiveStart *bool   `json:"inclusive_start,omitempty"`
+	InclusiveEnd   *bool   `json:"inclusive_end,omitempty"`
+	FieldVal       string  `json:"field,omitempty"`
+	BoostVal       float64 `json:"boost,omitempty"`
+	DateTimeParser *string `json:"datetime_parser,omitempty"`
+}
+
+// NewDateRangeQuery creates a new Query for ranges
+// of date values.
+// A DateTimeParser is chosen based on the field.
+// Either, but not both endpoints can be nil.
+func NewDateRangeQuery(start, end *string) *dateRangeQuery {
+	return NewDateRangeInclusiveQuery(start, end, nil, nil)
+}
+
+// NewDateRangeInclusiveQuery creates a new Query for ranges
+// of date values.
+// A DateTimeParser is chosen based on the field.
+// Either, but not both endpoints can be nil.
+// startInclusive and endInclusive control inclusion of the endpoints.
+func NewDateRangeInclusiveQuery(start, end *string, startInclusive, endInclusive *bool) *dateRangeQuery {
+	return &dateRangeQuery{
+		Start:          start,
+		End:            end,
+		InclusiveStart: startInclusive,
+		InclusiveEnd:   endInclusive,
+		BoostVal:       1.0,
+	}
+}
+
+func (q *dateRangeQuery) Boost() float64 {
+	return q.BoostVal
+}
+
+func (q *dateRangeQuery) SetBoost(b float64) Query {
+	q.BoostVal = b
+	return q
+}
+
+func (q *dateRangeQuery) Field() string {
+	return q.FieldVal
+}
+
+func (q *dateRangeQuery) SetField(f string) Query {
+	q.FieldVal = f
+	return q
+}
+
+func (q *dateRangeQuery) Searcher(i index.IndexReader, m *IndexMapping, explain bool) (search.Searcher, error) {
+
+	dateTimeParserName := ""
+	if q.DateTimeParser != nil {
+		dateTimeParserName = *q.DateTimeParser
+	} else {
+		dateTimeParserName = m.datetimeParserNameForPath(q.FieldVal)
+	}
+	dateTimeParser := m.dateTimeParserNamed(dateTimeParserName)
+	if dateTimeParser == nil {
+		return nil, fmt.Errorf("no datetime parser named '%s' registered", *q.DateTimeParser)
+	}
+
+	field := q.FieldVal
+	if q.FieldVal == "" {
+		field = m.DefaultField
+	}
+
+	// now parse the endpoints
+	min := math.Inf(-1)
+	max := math.Inf(1)
+	if q.Start != nil && *q.Start != "" {
+		startTime, err := dateTimeParser.ParseDateTime(*q.Start)
+		if err != nil {
+			return nil, err
+		}
+		min = numeric_util.Int64ToFloat64(startTime.UnixNano())
+	}
+	if q.End != nil && *q.End != "" {
+		endTime, err := dateTimeParser.ParseDateTime(*q.End)
+		if err != nil {
+			return nil, err
+		}
+		max = numeric_util.Int64ToFloat64(endTime.UnixNano())
+	}
+
+	return searchers.NewNumericRangeSearcher(i, &min, &max, q.InclusiveStart, q.InclusiveEnd, field, q.BoostVal, explain)
+}
+
+func (q *dateRangeQuery) Validate() error {
+	if q.Start == nil && q.Start == q.End {
+		return fmt.Errorf("must specify start or end")
+	}
+	return nil
+}