Added encoding function for integers.

Added functionality for mget.

server/cmd_functions.go

@@ -0,0 +1,112 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/kelvinmwinuka/memstore/serialization"
+	"github.com/kelvinmwinuka/memstore/utils"
+)
+
+func processPing(cmd []string, connRW *bufio.ReadWriter) {
+	if len(cmd) == 1 {
+		serialization.Encode(connRW, "SimpleString PONG")
+		connRW.Write([]byte("\n"))
+		connRW.Flush()
+	}
+	if len(cmd) == 2 {
+		serialization.Encode(connRW, fmt.Sprintf("SimpleString \"%s\"", cmd[1]))
+		connRW.Write([]byte("\n"))
+		connRW.Flush()
+	}
+}
+
+func processSet(cmd []string, connRW *bufio.ReadWriter, server *Server) {
+	fmt.Println("Process set command")
+	server.data.mu.Lock()
+	defer server.data.mu.Unlock()
+
+	switch x := len(cmd); {
+	default:
+		fmt.Println("Wrong number of args for SET commands")
+	case x > 3:
+		server.data.data[cmd[1]] = strings.Join(cmd[2:], " ")
+		serialization.Encode(connRW, "SimpleString OK")
+	case x == 3:
+		val, err := strconv.ParseFloat(cmd[2], 32)
+
+		if err != nil {
+			server.data.data[cmd[1]] = cmd[2]
+		} else if !utils.IsInteger(val) {
+			server.data.data[cmd[1]] = val
+		} else {
+			server.data.data[cmd[1]] = int(val)
+		}
+
+		serialization.Encode(connRW, "SimpleString OK")
+	}
+
+	connRW.Write([]byte("\n"))
+	connRW.Flush()
+}
+
+func processGet(cmd []string, connRW *bufio.ReadWriter, server *Server) {
+	server.data.mu.Lock()
+	defer server.data.mu.Unlock()
+
+	// Use reflection to determine the type of the value and how to encode it
+	switch server.data.data[cmd[1]].(type) {
+	default:
+		fmt.Println("Error. The requested object's type cannot be returned with the GET command")
+	case string:
+		serialization.Encode(connRW, fmt.Sprintf("SimpleString \"%s\"", server.data.data[cmd[1]]))
+	case float64:
+		serialization.Encode(connRW, fmt.Sprintf("SimpleString %f", server.data.data[cmd[1]]))
+	case int:
+		serialization.Encode(connRW, fmt.Sprintf("Integer %d", server.data.data[cmd[1]]))
+	}
+
+	connRW.Write([]byte("\n"))
+	connRW.Flush()
+}
+
+func processMGet(cmd []string, connRW *bufio.ReadWriter, server *Server) {
+	server.data.mu.Lock()
+	defer server.data.mu.Unlock()
+
+	vals := []string{}
+
+	for _, key := range cmd[1:] {
+		switch server.data.data[key].(type) {
+		case string:
+			vals = append(vals, fmt.Sprintf("%s", server.data.data[key]))
+		case float64:
+			vals = append(vals, fmt.Sprintf("%f", server.data.data[key]))
+		case int:
+			vals = append(vals, fmt.Sprintf("%d", server.data.data[key]))
+		}
+	}
+
+	serialization.Encode(connRW, fmt.Sprintf("Array %s", strings.Join(vals, " ")))
+
+	connRW.Write([]byte("\n"))
+	connRW.Flush()
+}
+
+func processCommand(cmd []string, connRW *bufio.ReadWriter, server *Server) {
+	// Return encoded message to client
+	switch strings.ToLower(cmd[0]) {
+	default:
+		fmt.Println("The command is unknown")
+	case "ping":
+		processPing(cmd, connRW)
+	case "set":
+		processSet(cmd, connRW, server)
+	case "get":
+		processGet(cmd, connRW, server)
+	case "mget":
+		processMGet(cmd, connRW, server)
+	}
+}