// NewSTable function description : 新建数据库表
// params :
// return :
func NewSTable(tablename, pathname string, fieldsinfos []FieldMeta, logger *utils.Log4FE) *STable {
this := &STable{MaxCount: 0, Logger: logger, Pathname: pathname, Tablename: tablename, FieldInfos: fieldsinfos, Fields: make(map[string]FieldMeta)}
if utils.IsExist(pathname + "/" + tablename + TB_DTL_TAIL) {
this.Logger.Error("[ERROR] STable[%v] is exist", tablename)
return nil
}
for _, field := range fieldsinfos {
if _, ok := this.Fields[field.Fieldname]; ok {
this.Logger.Error("[ERROR] Field[%v] exist", field.Fieldname)
return nil
}
this.Fields[field.Fieldname] = field
}
//创建表的索引，使用b+树索引
if err := this.createIndex(); err != nil {
this.Logger.Error("[ERROR] createIndex %v", err)
return nil
}
//创建detail文件
if err := this.createDetail(); err != nil {
this.Logger.Error("[ERROR] createDetail %v", err)
return nil
}
this.Logger.Info("[INFO] STable[%v] Create ok", tablename)
return this
}
//NewSTable(tablename, pathname string, fieldsinfo map[string]FieldMeta, logger *utils.Log4FE) *STable
// NewSDatabase function description : 新建数据库
// params :
// return :
func NewSDatabase(dbname, dbpath string, logger *utils.Log4FE) *SDatabase {
this := &SDatabase{Logger: logger, Pathname: dbpath, Name: dbname}
this.Fullname = dbpath + "/" + dbname
if utils.IsExist(this.Fullname) {
this.Logger.Error("[ERROR] SDatabase[%v] is exist", dbname)
return nil
}
os.MkdirAll(this.Fullname, 0777)
if err := this.initDatabase(); err != nil {
return this
}
this.Logger.Info("[INFO] SDatabase[%v] Create ok", dbname)
return this
}