/
dbModelInternal.go
333 lines (286 loc) · 9.94 KB
/
dbModelInternal.go
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// Copyright (c) 2016 OpenM++
// This code is licensed under the MIT license (see LICENSE.txt for details)
package db
import (
"crypto/md5"
"errors"
"fmt"
"strconv"
)
// updateInternals language metadata internal members.
// It must be called after restoring from json.
func (meta *LangMeta) updateInternals() {
meta.idIndex = make(map[int]int, len(meta.Lang))
meta.codeIndex = make(map[string]int, len(meta.Lang))
for k := range meta.Lang {
meta.idIndex[meta.Lang[k].langId] = k // index of lang_id in result []language slice
meta.codeIndex[meta.Lang[k].LangCode] = k // index of lang_code in result []language slice
}
}
// updateInternals model metadata internal members.
// It must be called after restoring from json.
// It does recalculate digest of type, parameter, output table, model if digest is "" empty.
func (meta *ModelMeta) updateInternals() error {
hMd5 := md5.New()
hMd5Import := md5.New()
isDigestUpdated := false
// update type digest, if it is empty
for idx := range meta.Type {
if meta.Type[idx].Digest != "" { // digest already defined, skip
continue
}
// for built-in types use _name_ as digest, ie: _int_ or _Time_
if meta.Type[idx].IsBuiltIn() {
meta.Type[idx].Digest = "_" + meta.Type[idx].Name + "_"
continue
}
// else: model-specific type with empty "" digest
// digest type header
hMd5.Reset()
_, err := hMd5.Write([]byte("type_name,dic_id,total_enum_id\n"))
if err != nil {
return err
}
_, err = hMd5.Write([]byte(
meta.Type[idx].Name + "," + strconv.Itoa(meta.Type[idx].DicId) + "," + strconv.Itoa(meta.Type[idx].TotalEnumId) + "\n"))
if err != nil {
return err
}
// digest type enums
_, err = hMd5.Write([]byte("enum_id,enum_name\n"))
if err != nil {
return err
}
for k := range meta.Type[idx].Enum {
_, err := hMd5.Write([]byte(
strconv.Itoa(meta.Type[idx].Enum[k].EnumId) + "," + meta.Type[idx].Enum[k].Name + "\n"))
if err != nil {
return err
}
}
meta.Type[idx].Digest = fmt.Sprintf("%x", hMd5.Sum(nil)) // set type digest string
isDigestUpdated = true
}
// update parameter type and size (row count for all dimensions)
// update parameter dimensions: type and size (count of all enums)
// update parameter digest and import digest, if digest is empty
for idx := range meta.Param {
// update parameter type
k, ok := meta.TypeByKey(meta.Param[idx].TypeId)
if !ok {
return errors.New("type " + strconv.Itoa(meta.Param[idx].TypeId) + " not found for " + meta.Param[idx].Name)
}
meta.Param[idx].typeOf = &meta.Type[k]
if meta.Param[idx].Rank != len(meta.Param[idx].Dim) {
return errors.New("incorrect rank of parameter " + meta.Param[idx].Name)
}
// update parameter size: row count for all dimensions
// update parameter dimensions: type and size (count of all enums)
meta.Param[idx].sizeOf = 1
for i := range meta.Param[idx].Dim {
j, ok := meta.TypeByKey(meta.Param[idx].Dim[i].TypeId)
if !ok {
return errors.New("type " + strconv.Itoa(meta.Param[idx].Dim[i].TypeId) + " not found for " + meta.Param[idx].Name)
}
meta.Param[idx].Dim[i].typeOf = &meta.Type[j]
meta.Param[idx].Dim[i].sizeOf = len(meta.Param[idx].Dim[i].typeOf.Enum)
if meta.Param[idx].Dim[i].sizeOf > 0 {
meta.Param[idx].sizeOf *= meta.Param[idx].Dim[i].sizeOf
}
}
// update parameter digest and import digest, if digest is empty
if meta.Param[idx].Digest == "" {
// digest parameter header: name, rank, value type digest
hMd5.Reset()
_, err := hMd5.Write([]byte("parameter_name,parameter_rank,type_digest\n"))
if err != nil {
return err
}
_, err = hMd5.Write([]byte(meta.Param[idx].Name + "," + strconv.Itoa(meta.Param[idx].Rank) + "," + meta.Param[idx].typeOf.Digest + "\n"))
if err != nil {
return err
}
// import digest same as full parameter digest but does not include parameter name
hMd5Import.Reset()
_, err = hMd5Import.Write([]byte("parameter_rank,type_digest\n"))
if err != nil {
return err
}
_, err = hMd5Import.Write([]byte(strconv.Itoa(meta.Param[idx].Rank) + "," + meta.Param[idx].typeOf.Digest + "\n"))
if err != nil {
return err
}
// digest parameter dimensions: id, name, size and dimension type digest
_, err = hMd5.Write([]byte("dim_id,dim_name,dim_size,type_digest\n"))
if err != nil {
return err
}
_, err = hMd5Import.Write([]byte("dim_id,dim_name,dim_size,type_digest\n"))
if err != nil {
return err
}
for k := range meta.Param[idx].Dim {
bt := []byte(
strconv.Itoa(meta.Param[idx].Dim[k].DimId) + "," +
meta.Param[idx].Dim[k].Name + "," +
strconv.Itoa(meta.Param[idx].Dim[k].sizeOf) + "," +
meta.Param[idx].Dim[k].typeOf.Digest + "\n")
_, err = hMd5.Write(bt)
if err != nil {
return err
}
_, err = hMd5Import.Write(bt)
if err != nil {
return err
}
}
meta.Param[idx].Digest = fmt.Sprintf("%x", hMd5.Sum(nil))
meta.Param[idx].ImportDigest = fmt.Sprintf("%x", hMd5Import.Sum(nil))
isDigestUpdated = true
}
}
// update output table size (row count for all dimensions)
// update output table dimensions: type and size (count of all enums)
// update output table digest and import digest, if digest is empty
for idx := range meta.Table {
if meta.Table[idx].Rank != len(meta.Table[idx].Dim) {
return errors.New("incorrect rank of output table " + meta.Table[idx].Name)
}
// update output table size (row count for all dimensions)
// update output table dimensions: type and size (count of all enums)
meta.Table[idx].sizeOf = 1
for i := range meta.Table[idx].Dim {
j, ok := meta.TypeByKey(meta.Table[idx].Dim[i].TypeId)
if !ok {
return errors.New("type " + strconv.Itoa(meta.Table[idx].Dim[i].TypeId) + " not found for " + meta.Table[idx].Name)
}
meta.Table[idx].Dim[i].typeOf = &meta.Type[j]
if meta.Table[idx].Dim[i].DimSize > 0 {
meta.Table[idx].sizeOf *= meta.Table[idx].Dim[i].DimSize
}
}
// update output table digest and import digest, if digest is empty
if meta.Table[idx].Digest == "" {
// digest output table header: name, rank
hMd5.Reset()
_, err := hMd5.Write([]byte("table_name,table_rank\n"))
if err != nil {
return err
}
_, err = hMd5.Write([]byte(meta.Table[idx].Name + "," + strconv.Itoa(meta.Table[idx].Rank) + "\n"))
if err != nil {
return err
}
// table import digest same as parameter import digest
hMd5Import.Reset()
_, err = hMd5Import.Write([]byte("parameter_rank,type_digest\n"))
if err != nil {
return err
}
_, err = hMd5Import.Write([]byte(strconv.Itoa(meta.Table[idx].Rank) + ",_double_\n"))
if err != nil {
return err
}
// digest output table dimensions: id, name, size and dimension type digest
_, err = hMd5.Write([]byte("dim_id,dim_name,dim_size,type_digest\n"))
if err != nil {
return err
}
_, err = hMd5Import.Write([]byte("dim_id,dim_name,dim_size,type_digest\n"))
if err != nil {
return err
}
for k := range meta.Table[idx].Dim {
bt := []byte(
strconv.Itoa(meta.Table[idx].Dim[k].DimId) + "," +
meta.Table[idx].Dim[k].Name + "," +
strconv.Itoa(meta.Table[idx].Dim[k].DimSize) + "," +
meta.Table[idx].Dim[k].typeOf.Digest + "\n")
_, err = hMd5.Write(bt)
if err != nil {
return err
}
_, err = hMd5Import.Write(bt)
if err != nil {
return err
}
}
meta.Table[idx].ImportDigest = fmt.Sprintf("%x", hMd5Import.Sum(nil)) // done with import digest
// digest output table accumulators: id, name, expression
_, err = hMd5.Write([]byte("acc_id,acc_name,acc_src\n"))
if err != nil {
return err
}
for k := range meta.Table[idx].Acc {
_, err := hMd5.Write([]byte(
strconv.Itoa(meta.Table[idx].Acc[k].AccId) + "," + meta.Table[idx].Acc[k].Name + "," + meta.Table[idx].Acc[k].SrcAcc + "\n"))
if err != nil {
return err
}
}
// digest output table expressions: id, name, source expression
_, err = hMd5.Write([]byte("expr_id,expr_name,expr_src\n"))
if err != nil {
return err
}
for k := range meta.Table[idx].Expr {
_, err := hMd5.Write([]byte(
strconv.Itoa(meta.Table[idx].Expr[k].ExprId) + "," + meta.Table[idx].Expr[k].Name + "," + meta.Table[idx].Expr[k].SrcExpr + "\n"))
if err != nil {
return err
}
}
meta.Table[idx].Digest = fmt.Sprintf("%x", hMd5.Sum(nil)) // set ouput table digest string
isDigestUpdated = true
}
}
// update model digest if it is "" empty
if isDigestUpdated || meta.Model.Digest == "" {
// digest model header: name and model type
hMd5.Reset()
_, err := hMd5.Write([]byte("model_name,model_type,model_ver\n"))
if err != nil {
return err
}
_, err = hMd5.Write([]byte(
meta.Model.Name + "," + strconv.Itoa(meta.Model.Type) + "," + meta.Model.Version + "\n"))
if err != nil {
return err
}
// add digests of all model types
_, err = hMd5.Write([]byte("type_digest\n"))
if err != nil {
return err
}
for k := range meta.Type {
_, err := hMd5.Write([]byte(meta.Type[k].Digest + "\n"))
if err != nil {
return err
}
}
// add digests of all model parameters
_, err = hMd5.Write([]byte("parameter_digest\n"))
if err != nil {
return err
}
for k := range meta.Param {
_, err := hMd5.Write([]byte(meta.Param[k].Digest + "\n"))
if err != nil {
return err
}
}
// add digests of all model output tables
_, err = hMd5.Write([]byte("table_digest\n"))
if err != nil {
return err
}
for k := range meta.Table {
_, err := hMd5.Write([]byte(meta.Table[k].Digest + "\n"))
if err != nil {
return err
}
}
meta.Model.Digest = fmt.Sprintf("%x", hMd5.Sum(nil)) // set model digest string
}
return nil
}