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run.go
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/
run.go
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package usecase
import (
"fmt"
"os"
"os/signal"
"syscall"
"github.com/pkg/errors"
log "github.com/sirupsen/logrus"
"github.com/suzuki-shunsuke/go-graylog/mockserver"
"github.com/suzuki-shunsuke/go-graylog/mockserver/store/plain"
)
// Run runs a mock server.
func Run(dataPath, logLevel string, port int) error {
var (
server *mockserver.Server
err error
)
if port == 0 {
server, err = mockserver.NewServer(
"", plain.NewStore(dataPath))
} else {
server, err = mockserver.NewServer(
fmt.Sprintf(":%d", port), plain.NewStore(dataPath))
}
if err != nil {
return errors.Wrap(err, "failed to create a mock server")
}
lvl, err := log.ParseLevel(logLevel)
if err != nil {
return fmt.Errorf(
`invalid log-level %s.
log-level must be any of debug|info|warn|error|fatal|panic`, logLevel)
}
server.Logger().SetLevel(lvl)
if err := server.Load(); err != nil {
return errors.Wrap(err, fmt.Sprintf("failed to load data at %s", dataPath))
}
server.Start()
defer server.Close()
server.Logger().Infof(
"Start Graylog mock server: %s\nCtrl + C to stop server", server.Endpoint())
signalChan := make(chan os.Signal, 1)
signal.Notify(
signalChan, syscall.SIGHUP, syscall.SIGINT,
syscall.SIGTERM, syscall.SIGQUIT)
exitChan := make(chan int)
go func() {
for {
<-signalChan
exitChan <- 0
}
}()
<-exitChan
return nil
}