Adding upstream version 2.5.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

document/field_ip.go

@@ -0,0 +1,137 @@
+//  Copyright (c) 2021 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 document
+
+import (
+	"fmt"
+	"net"
+	"reflect"
+
+	"github.com/blevesearch/bleve/v2/analysis"
+	"github.com/blevesearch/bleve/v2/size"
+	index "github.com/blevesearch/bleve_index_api"
+)
+
+var reflectStaticSizeIPField int
+
+func init() {
+	var f IPField
+	reflectStaticSizeIPField = int(reflect.TypeOf(f).Size())
+}
+
+const DefaultIPIndexingOptions = index.StoreField | index.IndexField | index.DocValues
+
+type IPField struct {
+	name              string
+	arrayPositions    []uint64
+	options           index.FieldIndexingOptions
+	value             net.IP
+	numPlainTextBytes uint64
+	length            int
+	frequencies       index.TokenFrequencies
+}
+
+func (b *IPField) Size() int {
+	var freqSize int
+	if b.frequencies != nil {
+		freqSize = b.frequencies.Size()
+	}
+	return reflectStaticSizeIPField + size.SizeOfPtr +
+		len(b.name) +
+		len(b.arrayPositions)*size.SizeOfUint64 +
+		len(b.value) +
+		freqSize
+}
+
+func (b *IPField) Name() string {
+	return b.name
+}
+
+func (b *IPField) ArrayPositions() []uint64 {
+	return b.arrayPositions
+}
+
+func (b *IPField) Options() index.FieldIndexingOptions {
+	return b.options
+}
+
+func (n *IPField) EncodedFieldType() byte {
+	return 'i'
+}
+
+func (n *IPField) AnalyzedLength() int {
+	return n.length
+}
+
+func (n *IPField) AnalyzedTokenFrequencies() index.TokenFrequencies {
+	return n.frequencies
+}
+
+func (b *IPField) Analyze() {
+
+	tokens := analysis.TokenStream{
+		&analysis.Token{
+			Start:    0,
+			End:      len(b.value),
+			Term:     b.value,
+			Position: 1,
+			Type:     analysis.IP,
+		},
+	}
+	b.length = 1
+	b.frequencies = analysis.TokenFrequency(tokens, b.arrayPositions, b.options)
+}
+
+func (b *IPField) Value() []byte {
+	return b.value
+}
+
+func (b *IPField) IP() (net.IP, error) {
+	return net.IP(b.value), nil
+}
+
+func (b *IPField) GoString() string {
+	return fmt.Sprintf("&document.IPField{Name:%s, Options: %s, Value: %s}", b.name, b.options, net.IP(b.value))
+}
+
+func (b *IPField) NumPlainTextBytes() uint64 {
+	return b.numPlainTextBytes
+}
+
+func NewIPFieldFromBytes(name string, arrayPositions []uint64, value []byte) *IPField {
+	return &IPField{
+		name:              name,
+		arrayPositions:    arrayPositions,
+		value:             value,
+		options:           DefaultIPIndexingOptions,
+		numPlainTextBytes: uint64(len(value)),
+	}
+}
+
+func NewIPField(name string, arrayPositions []uint64, v net.IP) *IPField {
+	return NewIPFieldWithIndexingOptions(name, arrayPositions, v, DefaultIPIndexingOptions)
+}
+
+func NewIPFieldWithIndexingOptions(name string, arrayPositions []uint64, b net.IP, options index.FieldIndexingOptions) *IPField {
+	v := b.To16()
+
+	return &IPField{
+		name:              name,
+		arrayPositions:    arrayPositions,
+		value:             v,
+		options:           options,
+		numPlainTextBytes: net.IPv6len,
+	}
+}