From c34dc5f401ba3858833bc416fd1a3dc3faf8e3a4 Mon Sep 17 00:00:00 2001
From: Jeff Carr <jcarr@wit.com>
Date: Fri, 10 May 2019 17:41:58 -0700
Subject: [PATCH] code runs. Writes out marshal'ed entries to a file, but is
 that anything other than garbage

Signed-off-by: Jeff Carr <jcarr@wit.com>
---
 example-protobuf/main.go | 116 +++++++++++----------------------------
 1 file changed, 32 insertions(+), 84 deletions(-)

diff --git a/example-protobuf/main.go b/example-protobuf/main.go
index d59ed87..aa6cd09 100644
--- a/example-protobuf/main.go
+++ b/example-protobuf/main.go
@@ -1,85 +1,56 @@
 package main
 
-import "io"
-import "io/ioutil"
 import "log"
-import "fmt"
 import "bytes"
 import "os"
+import "bufio"
+// import "io"
+import "io/ioutil"
 
 import "github.com/golang/protobuf/proto"
-
 import pb "git.wit.com/jcarr/witProtobuf"
 
-func writeEvent(e *pb.Event) {
-	log.Println("Event ID:", e.Id)
-	log.Println("  Name:", e.Name)
-	if e.Email != "" {
-		log.Println("  E-mail address:", e.Email)
-	}
-}
-
-func writePerson(w io.Writer, e *pb.Event) {
-	fmt.Fprintln(w, "Event ID:", e.Id)
-	fmt.Fprintln(w, "  Name:", e.Name)
-	if e.Email != "" {
-		fmt.Fprintln(w, "  E-mail address:", e.Email)
-	}
-
-/*
-	for _, pn := range p.Phones {
-		switch pn.Type {
-		case pb.Person_MOBILE:
-			fmt.Fprint(w, "  Mobile phone #: ")
-		case pb.Person_HOME:
-			fmt.Fprint(w, "  Home phone #: ")
-		case pb.Person_WORK:
-			fmt.Fprint(w, "  Work phone #: ")
-		}
-		fmt.Fprintln(w, pn.Number)
-	}
-*/
-}
-
-/*
-func listPeople(w io.Writer, book *pb.AddressBook) {
-	for _, p := range book.People {
-		writePerson(w, p)
-	}
-}
-*/
-
 // Main reads the entire address book from a file and prints all the
 // information inside.
 func main() {
 	TestWriteEvent()
-/*
-	if len(os.Args) != 2 {
-		log.Fatalf("Usage:  %s ADDRESS_BOOK_FILE\n", os.Args[0])
-	}
-	fname := os.Args[1]
 
-	// [START unmarshal_proto]
-	// Read the existing address book.
-	in, err := ioutil.ReadFile(fname)
+	in, err := ioutil.ReadFile("/tmp/testing4.protobuf")
 	if err != nil {
 		log.Fatalln("Error reading file:", err)
 	}
-	book := &pb.AddressBook{}
-	if err := proto.Unmarshal(in, book); err != nil {
-		log.Fatalln("Failed to parse address book:", err)
+	allEvents := &pb.Event{}
+	if err := proto.Unmarshal(in, allEvents); err != nil {
+		log.Fatalln("Failed to parse events:", err)
 	}
-	// [END unmarshal_proto]
 
-	listPeople(os.Stdout, book)
-*/
+	// listPeople(os.Stdout, allEvents)
+	// got := in.String()
+	log.Println(in)
+}
+
+func marshalWriteToFile(myWriter *bufio.Writer, e *pb.Event) {
+	buf, err := proto.Marshal(e)
+	if err != nil {
+		log.Fatal("marshaling error: ", err)
+	}
+	tmp, err := myWriter.Write(buf)
+	myWriter.Flush()
+	log.Println("bufio.Write() tmp, err = ", tmp, err)
+
+	e.Id += 1
+	e.Name = "jcarrEvent21"
+	buf, err = proto.Marshal(e)
+	tmp2, err := myWriter.Write(buf)
+	myWriter.Flush()
+	log.Println("bufio.Write() tmp2, err = ", tmp2, err)
 }
 
 func TestWriteEvent() {
 	buf := new(bytes.Buffer)
 
 	// [START populate_proto]
-	e := pb.Event{
+	e := &pb.Event{
 		Id:       1234,
 		Name:     "jcarrEvent1",
 		Email:    "jcarr@wit.com",
@@ -89,41 +60,17 @@ func TestWriteEvent() {
 	}
 	// [END populate_proto]
 
-	writePerson(buf, &e)
-
 	e.Id += 1
 	e.Name = "jcarrEvent2"
-	writePerson(buf, &e)
 
 	got := buf.String()
 	log.Println(got)
 
-	out := ioutil.WriteFile("/tmp/testing1.protobuf", buf.Bytes(), os.FileMode(0777))
-	log.Println("ioutil.WriteFile() = out =", out)
-
-	tmp, err := proto.Marshal(&e)
-	if err != nil {
-		log.Fatal("marshaling error: ", err)
-	}
-	out = ioutil.WriteFile("/tmp/testing2.protobuf", tmp, os.FileMode(0777))
-
-/*
-	out = ioutil.WriteFile("/tmp/testing2.protobuf", e, os.FileMode(0777))
-	log.Println("ioutil.WriteFile() = out =", out)
-*/
+	newfile, _ := os.Create("/tmp/testing4.protobuf")
+	myWriter := bufio.NewWriter(newfile)
+	marshalWriteToFile(myWriter, e)
 
 	marshalUnmarshal()
-
-/*
-	want := `Person ID: 1234
-  Name: John Doe
-  E-mail address: jdoe@example.com
-  Home phone #: 555-4321
-`
-	if got != want {
-		t.Errorf("writePerson(%s) =>\n\t%q, want %q", p.String(), got, want)
-	}
-*/
 }
 
 func marshalUnmarshal() {
@@ -139,6 +86,7 @@ func marshalUnmarshal() {
 	if err != nil {
 		log.Fatal("marshaling error: ", err)
 	}
+
 	newTest := &pb.Event{}
 	err = proto.Unmarshal(data, newTest)
 	if err != nil {