示例#1
0
// ProcessData defers to util.SQLInsertData
func (s *SQLWriter) ProcessData(d data.JSON, outputChan chan data.JSON, killChan chan error) {
	// handle panics a bit more gracefully
	defer func() {
		if err := recover(); err != nil {
			util.KillPipelineIfErr(err.(error), killChan)
		}
	}()

	// First check for SQLWriterData
	var wd SQLWriterData
	err := data.ParseJSONSilent(d, &wd)
	logger.Info("SQLWriter: Writing data...")
	if err == nil && wd.TableName != "" && wd.InsertData != nil {
		logger.Debug("SQLWriter: SQLWriterData scenario")
		dd, err := data.NewJSON(wd.InsertData)
		util.KillPipelineIfErr(err, killChan)
		err = util.SQLInsertData(s.writeDB, dd, wd.TableName, s.OnDupKeyUpdate, s.OnDupKeyFields, s.BatchSize)
		util.KillPipelineIfErr(err, killChan)
	} else {
		logger.Debug("SQLWriter: normal data scenario")
		err = util.SQLInsertData(s.writeDB, d, s.TableName, s.OnDupKeyUpdate, s.OnDupKeyFields, s.BatchSize)
		util.KillPipelineIfErr(err, killChan)
	}
	logger.Info("SQLWriter: Write complete")
}
示例#2
0
func ExampleNewJSON() {
	t := testStruct{A: 1, B: 2}

	d, _ := data.NewJSON(t)

	fmt.Println(string(d))
	// Output: {"A":1,"B":2}
}
示例#3
0
文件: sql.go 项目: dailyburn/ratchet
func sendTableData(tableData []map[string]interface{}, dataChan chan data.JSON) {
	d, err := data.NewJSON(tableData)
	if err != nil {
		sendErr(err, dataChan)
	} else {
		dataChan <- d
	}
}
示例#4
0
文件: sql.go 项目: dailyburn/ratchet
func scanRowsUsingStruct(rows *sql.Rows, columns []string, structDest interface{}, batchSize int, dataChan chan data.JSON) {
	defer rows.Close()

	tableData := []map[string]interface{}{}

	for rows.Next() {
		err := sqlstruct.Scan(structDest, rows)
		if err != nil {
			sendErr(err, dataChan)
		}

		d, err := data.NewJSON(structDest)
		if err != nil {
			sendErr(err, dataChan)
		}

		entry := make(map[string]interface{})
		err = data.ParseJSON(d, &entry)
		if err != nil {
			sendErr(err, dataChan)
		}

		tableData = append(tableData, entry)

		if batchSize > 0 && len(tableData) >= batchSize {
			sendTableData(tableData, dataChan)
			tableData = []map[string]interface{}{}
		}
	}
	if rows.Err() != nil {
		sendErr(rows.Err(), dataChan)
	}

	// Flush remaining tableData
	if len(tableData) > 0 {
		sendTableData(tableData, dataChan)
	}

	close(dataChan) // signal completion to caller
}
示例#5
0
func (r *SftpReader) sendFilePath(path string, outputChan chan data.JSON, killChan chan error) {
	sftpPath := util.SftpPath{Path: path}
	d, err := data.NewJSON(sftpPath)
	util.KillPipelineIfErr(err, killChan)
	outputChan <- d
}