Exercise 1

ex1/proto/io.go

@@ -0,0 +1,51 @@
+package proto
+
+import (
+  "os"
+  "google.golang.org/protobuf/proto"
+  // "git.cems.dev/cdricms/bdooc/parsing"
+)
+
+func SaveToFile(data []uint8, filename string) error {
+  EmployeeList := &EmployeeList{}
+  err := proto.Unmarshal(data, EmployeeList)
+  if err != nil {
+    return err
+  }
+  return EmployeeList.SaveToFile(filename)
+}
+
+func (el *EmployeeList) SaveToFile(filename string) error {
+  data, err := proto.Marshal(el)
+  if err != nil {
+    return err
+  }
+  file, err := os.Create(filename)
+  if err != nil {
+    return err
+  }
+  defer file.Close()
+  _, err = file.Write(data)
+  if err != nil {
+    return err
+  }
+  return nil
+}
+
+func LoadFromFile(filename string) (*EmployeeList, error) {
+  file, err := os.Open(filename)
+  if err != nil {
+    return nil, err
+  }
+  defer file.Close()
+  data, err := os.ReadFile(filename)
+  if err != nil {
+    return nil, err
+  }
+  el := &EmployeeList{}
+  err = proto.Unmarshal(data, el)
+  if err != nil {
+    return nil, err
+  }
+  return el, nil
+}