示例#1
0
// 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
}
示例#2
0
//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
}