93 lines
2.0 KiB
Go
93 lines
2.0 KiB
Go
package server
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import (
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"fmt"
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"io/ioutil"
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"net"
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"os"
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"strconv"
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logging "git.loafle.net/commons/logging-go"
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"git.loafle.net/commons/server-go"
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cssn "git.loafle.net/commons/server-go/socket/net"
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)
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type ServerHandler interface {
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cssn.ServerHandler
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}
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type ServerHandlers struct {
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cssn.ServerHandlers
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PIDFilePath string
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port int
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}
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func (sh *ServerHandlers) Init(serverCtx server.ServerCtx) error {
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if err := sh.ServerHandlers.Init(serverCtx); nil != err {
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return err
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}
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return nil
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}
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func (sh *ServerHandlers) OnStart(serverCtx server.ServerCtx) error {
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if err := sh.ServerHandlers.OnStart(serverCtx); nil != err {
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return err
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}
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if _, err := os.Stat(sh.PIDFilePath); os.IsExist(err) {
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if err := os.Remove(sh.PIDFilePath); nil != err {
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logging.Logger().Errorf("Container[%s]: Removing pid file has been failed [%v]", sh.Name, err)
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}
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}
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s := strconv.FormatInt(int64(sh.port), 10)
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if err := ioutil.WriteFile(sh.PIDFilePath, []byte(s), os.ModePerm); nil != err {
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return err
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}
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return nil
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}
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func (sh *ServerHandlers) OnStop(serverCtx server.ServerCtx) {
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if _, err := os.Stat(sh.PIDFilePath); os.IsExist(err) {
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if err := os.Remove(sh.PIDFilePath); nil != err {
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logging.Logger().Errorf("Container: Removing pid file has been failed [%v]", err)
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}
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}
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sh.ServerHandlers.OnStop(serverCtx)
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}
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func (sh *ServerHandlers) Destroy(serverCtx server.ServerCtx) {
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sh.ServerHandlers.Destroy(serverCtx)
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}
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func (sh *ServerHandlers) Listener(serverCtx server.ServerCtx) (net.Listener, error) {
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for i := 60000; i < 61000; i++ {
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addr := fmt.Sprintf("localhost:%d", i)
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l, err := net.Listen("tcp", addr)
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if nil == err {
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sh.port = i
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return l, nil
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}
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}
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return nil, fmt.Errorf("Container[%s]: Cannot find availrable port", sh.Name)
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}
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func (sh *ServerHandlers) Validate() error {
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if err := sh.ServerHandlers.Validate(); nil != err {
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return err
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}
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if "" == sh.PIDFilePath {
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return fmt.Errorf("Container[%s]: The path of pid file must be specified", sh.Name)
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}
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return nil
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}
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