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server.go
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server.go
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package server
import (
"context"
"fmt"
"github.com/D3rus/go-library/configurator"
"github.com/D3rus/go-library/http/server/router"
"github.com/D3rus/go-library/logger"
"github.com/D3rus/go-library/runner"
"net/http"
)
//go:generate mockgen -package=server -destination=mock_configurator_test.go github.com/D3rus/go-library/configurator Configurator
type Server interface {
runner.Process
}
func NewWithConfigurator(configurator configurator.Configurator, config *Config, router router.Router, logger logger.Logger) *HTTPServer {
return NewHTTPServer(logger, router, Configuration(config, configurator))
}
func Configuration(config *Config, configurator configurator.Configurator) *Config {
if config.Interface == "" || config.Interface == InterfaceDefault {
configurator.SetDefault(InterfaceFieldName, InterfaceDefault)
config.Interface = configurator.GetString(InterfaceFieldName)
}
if config.Port == 0 || config.Port == PortDefault {
configurator.SetDefault(PortFieldName, PortDefault)
config.Port = configurator.GetUint16(PortFieldName)
}
if config.ShutdownTimeout == 0 || config.ShutdownTimeout == ShutdownTimeoutDefault {
configurator.SetDefault(ShutdownTimeoutFieldName, ShutdownTimeoutDefault)
config.ShutdownTimeout = configurator.GetDuration(ShutdownTimeoutFieldName)
}
return config
}
type HTTPServer struct {
logger logger.Logger
router router.Router
config *Config
server *http.Server
}
func NewHTTPServer(logger logger.Logger, router router.Router, config *Config) *HTTPServer {
return &HTTPServer{
logger: logger,
router: router,
config: config,
server: &http.Server{
Addr: fmt.Sprintf("%s:%d", config.Interface, config.Port),
Handler: router,
},
}
}
func (server *HTTPServer) Process(ctx context.Context) error {
ctx, cancelFunc := context.WithCancel(ctx)
defer cancelFunc()
server.logger.Infof("http.server: interface - %s, port - %d", server.config.Interface, server.config.Port)
go func() {
<-ctx.Done()
ctx, cancelFunc := context.WithTimeout(context.Background(), server.config.ShutdownTimeout)
defer cancelFunc()
server.logger.Info("http.server: shutdown")
if err := server.server.Shutdown(ctx); err != nil {
server.logger.Errorf("http.server: shutdown failed: %w", err)
}
}()
if err := server.server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
return fmt.Errorf("http.server: serve failed: %w", err)
}
return nil
}
func (server *HTTPServer) Name() string {
return "http.server"
}