func (plugin *Plugin) ReConnect() error {
// Connect to the plugin
pluginConn, connErr := PluginConn.NewPluginClient(plugin.PluginSock)
if connErr != nil {
plugin.connected = false
return fmt.Errorf("Failed to reconnect: %v", connErr)
}
// Set connection object
plugin.pluginConn = pluginConn
plugin.connected = true
return nil
}
/* Load the plugin to the plugin Registry explicitly when lazy load is active.
(if The discovery Process is not running, It search for the plugin and then load it to the registry)
*/
func (pluginReg *PluginReg) LoadPlugin(namespace string, name string, version string) (*Plugin, error) {
// Get the plugin tar location
tarFold := pluginLoc
// Runtime Conf file
confFile := filepath.Join(tarFold, DefaultPluginiRuntimeConfFile)
// Create RuntimeConf
pluginConf := common.RuntimeConf{}
StartPath := "./" + PluginBinary
pluginConf.Url = PluginUrl
pluginConf.Sock = PluginSockFile
// Save new plugin Conf
confSaveError := common.SaveRuntimeConfigs(confFile, pluginConf)
if confSaveError != nil {
log.ERROR.Println("Configuration load failed for file: ", confFile, ", Error: ", confSaveError)
return nil, SaveConfError
}
// get the start path
startPath := filepath.Join(tarFold, StartPath)
// Start the Plugin
log.DEBUG.Printf("Starting plugin: %s\n", startPath)
pid, startErr := pluginReg.startPlugin(startPath)
if startErr != nil {
log.ERROR.Println("Failed to start the plugin: ", startErr)
}
// get the unix socket file path
sockFile := filepath.Join(tarFold, pluginConf.Sock)
retryCount := 0
var pluginConn *PluginConn.PluginClient = nil
time.Sleep(DefaultInterval * 4)
for retryCount < ConnRetryCount {
var connErr error
// Initiate Connection to a Plugin
log.DEBUG.Printf("Trying to connect: %s\n", sockFile)
pluginConn, connErr = PluginConn.NewPluginClient(sockFile)
if connErr == nil {
break
}
retryCount++
// Sleep for a delay
time.Sleep(DefaultInterval)
}
if pluginConn == nil {
return nil, PluginConnFailed
}
plugin := &Plugin{}
plugin.PluginSock = sockFile
plugin.PluginUrl = pluginConf.Url
plugin.pluginConn = pluginConn
plugin.connected = true
plugin.callbacks = make(map[string]bool)
// set the plugin instance process id
plugin.pid = pid
plugin.pluginloc = pluginLoc
// Activate the plugin
activateErr := plugin.activate()
if activateErr != nil {
return plugin, activateErr
}
return plugin, nil
}