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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 client
import (
"bytes"
"encoding/binary"
"errors"
"fmt"
"reflect"
"sort"
)
type MeasurementSchema struct {
Measurement string
DataType TSDataType
Encoding TSEncoding
Compressor TSCompressionType
Properties map[string]string
}
type Tablet struct {
deviceId string
measurementSchemas []*MeasurementSchema
timestamps []int64
values []interface{}
rowCount int
}
func (t *Tablet) Len() int {
return t.GetRowCount()
}
func (t *Tablet) Swap(i, j int) {
for index, schema := range t.measurementSchemas {
switch schema.DataType {
case BOOLEAN:
sortedSlice := t.values[index].([]bool)
sortedSlice[i], sortedSlice[j] = sortedSlice[j], sortedSlice[i]
case INT32:
sortedSlice := t.values[index].([]int32)
sortedSlice[i], sortedSlice[j] = sortedSlice[j], sortedSlice[i]
case INT64:
sortedSlice := t.values[index].([]int64)
sortedSlice[i], sortedSlice[j] = sortedSlice[j], sortedSlice[i]
case FLOAT:
sortedSlice := t.values[index].([]float32)
sortedSlice[i], sortedSlice[j] = sortedSlice[j], sortedSlice[i]
case DOUBLE:
sortedSlice := t.values[index].([]float64)
sortedSlice[i], sortedSlice[j] = sortedSlice[j], sortedSlice[i]
case TEXT:
sortedSlice := t.values[index].([]string)
sortedSlice[i], sortedSlice[j] = sortedSlice[j], sortedSlice[i]
}
}
t.timestamps[i], t.timestamps[j] = t.timestamps[j], t.timestamps[i]
}
func (t *Tablet) Less(i, j int) bool {
return t.timestamps[i] < t.timestamps[j]
}
func (t *Tablet) SetTimestamp(timestamp int64, rowIndex int) {
t.timestamps[rowIndex] = timestamp
}
func (t *Tablet) SetValueAt(value interface{}, columnIndex, rowIndex int) error {
if value == nil {
return errors.New("Illegal argument value can't be nil")
}
if columnIndex < 0 || columnIndex > len(t.measurementSchemas) {
return fmt.Errorf("Illegal argument columnIndex %d", columnIndex)
}
if rowIndex < 0 || rowIndex > int(t.rowCount) {
return fmt.Errorf("Illegal argument rowIndex %d", rowIndex)
}
switch t.measurementSchemas[columnIndex].DataType {
case BOOLEAN:
values := t.values[columnIndex].([]bool)
switch value.(type) {
case bool:
values[rowIndex] = value.(bool)
case *bool:
values[rowIndex] = *value.(*bool)
default:
return fmt.Errorf("Illegal argument value %v %v", value, reflect.TypeOf(value))
}
case INT32:
values := t.values[columnIndex].([]int32)
switch value.(type) {
case int32:
values[rowIndex] = value.(int32)
case *int32:
values[rowIndex] = *value.(*int32)
default:
return fmt.Errorf("Illegal argument value %v %v", value, reflect.TypeOf(value))
}
case INT64:
values := t.values[columnIndex].([]int64)
switch value.(type) {
case int64:
values[rowIndex] = value.(int64)
case *int64:
values[rowIndex] = *value.(*int64)
default:
return fmt.Errorf("Illegal argument value %v %v", value, reflect.TypeOf(value))
}
case FLOAT:
values := t.values[columnIndex].([]float32)
switch value.(type) {
case float32:
values[rowIndex] = value.(float32)
case *float32:
values[rowIndex] = *value.(*float32)
default:
return fmt.Errorf("Illegal argument value %v %v", value, reflect.TypeOf(value))
}
case DOUBLE:
values := t.values[columnIndex].([]float64)
switch value.(type) {
case float64:
values[rowIndex] = value.(float64)
case *float64:
values[rowIndex] = *value.(*float64)
default:
return fmt.Errorf("Illegal argument value %v %v", value, reflect.TypeOf(value))
}
case TEXT:
values := t.values[columnIndex].([]string)
switch value.(type) {
case string:
values[rowIndex] = value.(string)
case []byte:
values[rowIndex] = string(value.([]byte))
default:
return fmt.Errorf("Illegal argument value %v %v", value, reflect.TypeOf(value))
}
}
return nil
}
func (t *Tablet) GetRowCount() int {
return t.rowCount
}
func (t *Tablet) GetValueAt(columnIndex, rowIndex int) (interface{}, error) {
if columnIndex < 0 || columnIndex > len(t.measurementSchemas) {
return nil, fmt.Errorf("Illegal argument columnIndex %d", columnIndex)
}
if rowIndex < 0 || rowIndex > int(t.rowCount) {
return nil, fmt.Errorf("Illegal argument rowIndex %d", rowIndex)
}
schema := t.measurementSchemas[columnIndex]
switch schema.DataType {
case BOOLEAN:
return t.values[columnIndex].([]bool)[rowIndex], nil
case INT32:
return t.values[columnIndex].([]int32)[rowIndex], nil
case INT64:
return t.values[columnIndex].([]int64)[rowIndex], nil
case FLOAT:
return t.values[columnIndex].([]float32)[rowIndex], nil
case DOUBLE:
return t.values[columnIndex].([]float64)[rowIndex], nil
case TEXT:
return t.values[columnIndex].([]string)[rowIndex], nil
default:
return nil, fmt.Errorf("Illegal datatype %v", schema.DataType)
}
}
func (t *Tablet) GetTimestampBytes() []byte {
buff := &bytes.Buffer{}
for _, v := range t.timestamps {
binary.Write(buff, binary.BigEndian, v)
}
return buff.Bytes()
}
func (t *Tablet) GetMeasurements() []string {
measurements := make([]string, len(t.measurementSchemas))
for i, s := range t.measurementSchemas {
measurements[i] = s.Measurement
}
return measurements
}
func (t *Tablet) getDataTypes() []int32 {
types := make([]int32, len(t.measurementSchemas))
for i, s := range t.measurementSchemas {
types[i] = int32(s.DataType)
}
return types
}
func (t *Tablet) getValuesBytes() ([]byte, error) {
buff := &bytes.Buffer{}
for i, schema := range t.measurementSchemas {
switch schema.DataType {
case BOOLEAN:
binary.Write(buff, binary.BigEndian, t.values[i].([]bool))
case INT32:
binary.Write(buff, binary.BigEndian, t.values[i].([]int32))
case INT64:
binary.Write(buff, binary.BigEndian, t.values[i].([]int64))
case FLOAT:
binary.Write(buff, binary.BigEndian, t.values[i].([]float32))
case DOUBLE:
binary.Write(buff, binary.BigEndian, t.values[i].([]float64))
case TEXT:
for _, s := range t.values[i].([]string) {
binary.Write(buff, binary.BigEndian, int32(len(s)))
binary.Write(buff, binary.BigEndian, []byte(s))
}
default:
return nil, fmt.Errorf("Illegal datatype %v", schema.DataType)
}
}
return buff.Bytes(), nil
}
func (t *Tablet) Sort() error {
sort.Sort(t)
return nil
}
func NewTablet(deviceId string, measurementSchemas []*MeasurementSchema, rowCount int) (*Tablet, error) {
tablet := &Tablet{
deviceId: deviceId,
measurementSchemas: measurementSchemas,
rowCount: rowCount,
}
tablet.timestamps = make([]int64, rowCount)
tablet.values = make([]interface{}, len(measurementSchemas))
for i, schema := range tablet.measurementSchemas {
switch schema.DataType {
case BOOLEAN:
tablet.values[i] = make([]bool, rowCount)
case INT32:
tablet.values[i] = make([]int32, rowCount)
case INT64:
tablet.values[i] = make([]int64, rowCount)
case FLOAT:
tablet.values[i] = make([]float32, rowCount)
case DOUBLE:
tablet.values[i] = make([]float64, rowCount)
case TEXT:
tablet.values[i] = make([]string, rowCount)
default:
return nil, fmt.Errorf("Illegal datatype %v", schema.DataType)
}
}
return tablet, nil
}