Implement CheckCle Microservice Operation

A Go-based microservice for service operations including ICMP ping, DNS resolution, and TCP connectivity

server/service-operation/operations/tcp.go

@@ -0,0 +1,49 @@
+
+package operations
+
+import (
+	"fmt"
+	"net"
+	"time"
+
+	"service-operation/types"
+)
+
+type TCPOperation struct {
+	timeout time.Duration
+}
+
+func NewTCPOperation(timeout time.Duration) *TCPOperation {
+	return &TCPOperation{timeout: timeout}
+}
+
+func (t *TCPOperation) Execute(host string, port int) (*types.OperationResult, error) {
+	result := &types.OperationResult{
+		Type:      types.OperationTCP,
+		Host:      host,
+		Port:      port,
+		StartTime: time.Now(),
+	}
+
+	start := time.Now()
+	
+	address := fmt.Sprintf("%s:%d", host, port)
+	conn, err := net.DialTimeout("tcp", address, t.timeout)
+	
+	result.ResponseTime = time.Since(start)
+	result.EndTime = time.Now()
+
+	if err != nil {
+		result.Error = err.Error()
+		result.TCPConnected = false
+		result.Success = false
+		result.Details = fmt.Sprintf("Failed to connect to %s:%d - %s", host, port, err.Error())
+	} else {
+		conn.Close()
+		result.TCPConnected = true
+		result.Success = true
+		result.Details = fmt.Sprintf("Successfully connected to %s:%d", host, port)
+	}
+
+	return result, nil
+}