/
column_builder.go
130 lines (106 loc) · 3.2 KB
/
column_builder.go
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/*
Copyright 2023 Huawei Cloud Computing Technologies Co., Ltd.
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 colstore
import (
"fmt"
"github.com/openGemini/openGemini/lib/encoding"
Log "github.com/openGemini/openGemini/lib/logger"
"github.com/openGemini/openGemini/lib/record"
"github.com/openGemini/openGemini/lib/util/lifted/vm/protoparser/influx"
"go.uber.org/zap"
)
type ColumnBuilder struct {
data []byte
log *Log.Logger
coder *encoding.CoderContext
}
func NewColumnBuilder() *ColumnBuilder {
return &ColumnBuilder{coder: encoding.NewCoderContext()}
}
func (b *ColumnBuilder) encIntegerColumn(col *record.ColVal) error {
b.data = append(b.data, encoding.BlockInteger)
var err error
b.data, err = encoding.EncodeIntegerBlock(col.Val, b.data, b.coder)
if err != nil {
b.log.Error("encode integer value fail", zap.Error(err))
return err
}
return nil
}
func (b *ColumnBuilder) encFloatColumn(col *record.ColVal) error {
b.data = append(b.data, encoding.BlockFloat64)
var err error
b.data, err = encoding.EncodeFloatBlock(col.Val, b.data, b.coder)
if err != nil {
b.log.Error("encode float value fail", zap.Error(err))
return err
}
return nil
}
func (b *ColumnBuilder) encStringColumn(col *record.ColVal) error {
b.data = append(b.data, encoding.BlockString)
var err error
b.data, err = encoding.EncodeStringBlock(col.Val, col.Offset, b.data, b.coder)
if err != nil {
b.log.Error("encode string value fail", zap.Error(err))
return err
}
return nil
}
func (b *ColumnBuilder) encTagColumn(col *record.ColVal) error {
b.data = append(b.data, encoding.BlockTag)
var err error
b.data, err = encoding.EncodeStringBlock(col.Val, col.Offset, b.data, b.coder)
if err != nil {
b.log.Error("encode string value fail", zap.Error(err))
return err
}
return nil
}
func (b *ColumnBuilder) encBooleanColumn(col *record.ColVal) error {
b.data = append(b.data, encoding.BlockBoolean)
var err error
b.data, err = encoding.EncodeBooleanBlock(col.Val, b.data, b.coder)
if err != nil {
b.log.Error("encode boolean value fail", zap.Error(err))
return err
}
return nil
}
func (b *ColumnBuilder) EncodeColumn(ref *record.Field, col *record.ColVal) ([]byte, error) {
var err error
switch ref.Type {
case influx.Field_Type_Int:
err = b.encIntegerColumn(col)
case influx.Field_Type_Float:
err = b.encFloatColumn(col)
case influx.Field_Type_String:
err = b.encStringColumn(col)
case influx.Field_Type_Boolean:
err = b.encBooleanColumn(col)
case influx.Field_Type_Tag:
err = b.encTagColumn(col)
default:
return nil, fmt.Errorf("invalid column type %v", ref.Type)
}
if err != nil {
return nil, err
}
return b.data, nil
}
func (b *ColumnBuilder) set(dst []byte) {
if b == nil {
return
}
b.data = dst
}