Print info for users to stderr when socket files are missing

[govpp.git] / adapter / statsclient / statsclient.go

diff --git a/adapter/statsclient/statsclient.go b/adapter/statsclient/statsclient.go
index f715a70..6381b9f 100644 (file)
--- a/adapter/statsclient/statsclient.go
+++ b/adapter/statsclient/statsclient.go
@@ -27,6 +27,25 @@ import (
        "git.fd.io/govpp.git/adapter"
 )
 
+const (
+       // DefaultSocketName is default VPP stats socket file path.
+       DefaultSocketName = adapter.DefaultStatsSocket
+)
+
+const socketMissing = `
+------------------------------------------------------------
+ VPP stats socket file %s is missing!
+
+  - is VPP running with stats segment enabled?
+  - is the correct socket name configured?
+
+ To enable it add following section to your VPP config:
+   statseg {
+     default
+   }
+------------------------------------------------------------
+`
+
 var (
        // Debug is global variable that determines debug mode
        Debug = os.Getenv("DEBUG_GOVPP_STATS") != ""
@@ -55,29 +74,17 @@ type StatsClient struct {
 // NewStatsClient returns new VPP stats API client.
 func NewStatsClient(sockAddr string) *StatsClient {
        if sockAddr == "" {
-               sockAddr = adapter.DefaultStatsSocket
+               sockAddr = DefaultSocketName
        }
        return &StatsClient{
                sockAddr: sockAddr,
        }
 }
 
-const sockNotFoundWarn = `stats socket not found at: %s
-------------------------------------------------------------
- VPP stats socket is missing!
- Is VPP running with stats segment enabled?
-
- To enable it add following section to startup config:
-   statseg {
-     default
-   }
-------------------------------------------------------------
-`
-
 func (c *StatsClient) Connect() error {
        // check if socket exists
        if _, err := os.Stat(c.sockAddr); os.IsNotExist(err) {
-               Log.Warnf(sockNotFoundWarn, c.sockAddr)
+               fmt.Fprintf(os.Stderr, socketMissing, c.sockAddr)
                return fmt.Errorf("stats socket file %s does not exist", c.sockAddr)
        } else if err != nil {
                return fmt.Errorf("stats socket error: %v", err)