code refactor

pkg/converters/transaction_data_converters.go

@@ -0,0 +1,25 @@
+package converters
+
+import "github.com/mayswind/ezbookkeeping/pkg/errs"
+
+// GetTransactionDataExporter returns the transaction data exporter according to the file type
+func GetTransactionDataExporter(fileType string) TransactionDataExporter {
+	if fileType == "csv" {
+		return EzBookKeepingTransactionDataCSVFileConverter
+	} else if fileType == "tsv" {
+		return EzBookKeepingTransactionDataTSVFileConverter
+	} else {
+		return nil
+	}
+}
+
+// GetTransactionDataImporter returns the transaction data importer according to the file type
+func GetTransactionDataImporter(fileType string) (TransactionDataImporter, error) {
+	if fileType == "ezbookkeeping_csv" {
+		return EzBookKeepingTransactionDataCSVFileConverter, nil
+	} else if fileType == "ezbookkeeping_tsv" {
+		return EzBookKeepingTransactionDataTSVFileConverter, nil
+	} else {
+		return nil, errs.ErrImportFileTypeNotSupported
+	}
+}