Initial pgterminate code

base/session.go

@@ -0,0 +1,67 @@
+package base
+
+import (
+	"fmt"
+	"strings"
+)
+
+// Session represents a PostgreSQL backend
+type Session struct {
+	Pid             int64
+	User            string
+	Db              string
+	Client          string
+	State           string
+	Query           string
+	BackendDuration float64
+	XactDuration    float64
+	QueryDuration   float64
+}
+
+// NewSession instanciates a Session
+func NewSession(pid int64, user string, db string, client string, state string, query string, backendDuration float64, xactDuration float64, queryDuration float64) Session {
+	return Session{
+		Pid:             pid,
+		User:            user,
+		Db:              db,
+		Client:          client,
+		State:           state,
+		Query:           query,
+		BackendDuration: backendDuration,
+		XactDuration:    xactDuration,
+		QueryDuration:   queryDuration,
+	}
+}
+
+// String represents a Session as a string
+func (s Session) String() string {
+	var output []string
+	if s.Pid != 0 {
+		output = append(output, fmt.Sprintf("pid=%d", s.Pid))
+	}
+	if s.User != "" {
+		output = append(output, fmt.Sprintf("user=%s", s.User))
+	}
+	if s.Db != "" {
+		output = append(output, fmt.Sprintf("db=%s", s.Db))
+	}
+	if s.Client != "" {
+		output = append(output, fmt.Sprintf("client=%s", s.Client))
+	}
+	if s.State != "" {
+		output = append(output, fmt.Sprintf("state=%s", s.State))
+	}
+	if s.BackendDuration != 0 {
+		output = append(output, fmt.Sprintf("backend_duration=%f", s.BackendDuration))
+	}
+	if s.XactDuration != 0 {
+		output = append(output, fmt.Sprintf("xact_duration=%f", s.XactDuration))
+	}
+	if s.QueryDuration != 0 {
+		output = append(output, fmt.Sprintf("query_duration=%f", s.QueryDuration))
+	}
+	if s.Query != "" {
+		output = append(output, fmt.Sprintf("query=%s", s.Query))
+	}
+	return strings.Join(output, " ")
+}