Commit 2726b56833ab51faf5cfcdc90f82d3fb9c9119dc
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server.go
| ... | ... | @@ -0,0 +1,75 @@ |
| 1 | +package webutility | |
| 2 | + | |
| 3 | +import ( | |
| 4 | + "database/sql" | |
| 5 | + "fmt" | |
| 6 | + "net/http" | |
| 7 | + | |
| 8 | + "git.to-net.rs/marko.tikvic/gologger" | |
| 9 | + "github.com/gorilla/mux" | |
| 10 | +) | |
| 11 | + | |
| 12 | +type Server struct { | |
| 13 | + DB *sql.DB | |
| 14 | + Router *mux.Router | |
| 15 | + Logger *gologger.Logger | |
| 16 | + Port string | |
| 17 | + UTCOffset int64 | |
| 18 | +} | |
| 19 | + | |
| 20 | +func NewServer(dsn, port, logDir string, utcOffset int64) (s *Server, err error) { | |
| 21 | + s = new(Server) | |
| 22 | + | |
| 23 | + s.Port = port | |
| 24 | + | |
| 25 | + if s.DB, err = sql.Open("odbc", fmt.Sprintf("DSN=%s;", dsn)); err != nil { | |
| 26 | + return nil, err | |
| 27 | + } | |
| 28 | + | |
| 29 | + s.Router = mux.NewRouter() | |
| 30 | + | |
| 31 | + if s.Logger, err = gologger.New("err", logDir, gologger.MaxLogSize1MB); err != nil { | |
| 32 | + return nil, fmt.Errorf("can't create logger: %s", err.Error()) | |
| 33 | + } | |
| 34 | + | |
| 35 | + s.UTCOffset = utcOffset | |
| 36 | + | |
| 37 | + return s, nil | |
| 38 | +} | |
| 39 | + | |
| 40 | +func (s *Server) Run() { | |
| 41 | + s.Logger.Print("Server listening on %s", s.Port) | |
| 42 | + s.Logger.PrintAndTrace(http.ListenAndServe(s.Port, s.Router).Error()) | |
| 43 | +} | |
| 44 | + | |
| 45 | +func (s *Server) Cleanup() { | |
| 46 | + if s.DB != nil { | |
| 47 | + s.DB.Close() | |
| 48 | + } | |
| 49 | + | |
| 50 | + if s.Logger != nil { | |
| 51 | + s.Logger.Close() | |
| 52 | + } | |
| 53 | +} | |
| 54 | + | |
| 55 | +func (s *Server) StartTransaction() (*sql.Tx, error) { | |
| 56 | + return s.DB.Begin() | |
| 57 | +} | |
| 58 | + | |
| 59 | +func CommitChanges(tx *sql.Tx, err *error, opt ...error) { | |
| 60 | + if *err != nil { | |
| 61 | + tx.Rollback() | |
| 62 | + return | |
| 63 | + } | |
| 64 | + | |
| 65 | + for _, e := range opt { | |
| 66 | + if e != nil { | |
| 67 | + tx.Rollback() | |
| 68 | + return | |
| 69 | + } | |
| 70 | + } | |
| 71 | + | |
| 72 | + if *err = tx.Commit(); *err != nil { | |
| 73 | + tx.Rollback() | |
| 74 | + } | |
| 75 | +} | ... | ... |