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Added an ability to sink to multiple writers (#23)
* Added an ability to sink to multiple writers * utc * fixed timezone in test * dep upgrade
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| package net | ||
|
|
||
| import ( | ||
| "errors" | ||
| "net" | ||
| "strings" | ||
|
|
||
| "github.com/emitter-io/address" | ||
| "github.com/kelindar/lua" | ||
| "github.com/kelindar/talaria/internal/monitor" | ||
| ) | ||
|
|
||
| const ctxTag = "net" | ||
|
|
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| // New creates a new lua module exposing the stats | ||
| func New(monitor monitor.Monitor) lua.Module { | ||
| l := &libnet{monitor} | ||
| m := &lua.NativeModule{ | ||
| Name: "net", | ||
| Version: "1.0", | ||
| } | ||
|
|
||
| m.Register("getmac", l.GetMac) | ||
| m.Register("addr", l.Addr) | ||
| return m | ||
| } | ||
|
|
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| type libnet struct { | ||
| monitor monitor.Monitor | ||
| } | ||
|
|
||
| // GetMac returns the mac address | ||
| func (l *libnet) GetMac() (lua.String, error) { | ||
| ifas, err := net.Interfaces() | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| for _, ifa := range ifas { | ||
| if addr := ifa.HardwareAddr.String(); addr != "" { | ||
| return lua.String(addr), nil | ||
| } | ||
| } | ||
| return "", errors.New("no valid mac address found") | ||
| } | ||
|
|
||
| // Addr returns the address of a specific host | ||
| func (l *libnet) Addr(host lua.String) (lua.String, error) { | ||
| if !strings.Contains(string(host), ":") { | ||
| host = host + ":80" | ||
| } | ||
|
|
||
| addr, err := address.Parse(string(host), 0) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| return lua.String(addr.IP.String()), nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| package net | ||
|
|
||
| import ( | ||
| "context" | ||
| "testing" | ||
|
|
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| "github.com/kelindar/lua" | ||
| "github.com/kelindar/talaria/internal/monitor" | ||
| "github.com/stretchr/testify/assert" | ||
| ) | ||
|
|
||
| func Test_GetMac(t *testing.T) { | ||
| m := New(monitor.NewNoop()) | ||
| assert.NotNil(t, m) | ||
|
|
||
| // Create a new script | ||
| s, err := lua.FromString("test", ` | ||
| local net = require("net") | ||
| function main() | ||
| local addr = net.getmac() | ||
| return addr | ||
| end`, m) | ||
| assert.NoError(t, err) | ||
| assert.NotNil(t, s) | ||
|
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| addr, err := s.Run(context.Background()) | ||
| assert.NoError(t, err) | ||
| assert.Contains(t, []rune(addr.(lua.String)), rune(':')) | ||
| } | ||
|
|
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| func Test_Addr(t *testing.T) { | ||
| m := New(monitor.NewNoop()) | ||
| assert.NotNil(t, m) | ||
|
|
||
| // Create a new script | ||
| s, err := lua.FromString("test", ` | ||
| local net = require("net") | ||
| function main() | ||
| return net.addr("localhost") | ||
| end`, m) | ||
| assert.NoError(t, err) | ||
| assert.NotNil(t, s) | ||
|
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| addr, err := s.Run(context.Background()) | ||
| assert.NoError(t, err) | ||
| assert.Equal(t, "127.0.0.1", string(addr.(lua.String))) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| package multi | ||
|
|
||
| import ( | ||
| "testing" | ||
|
|
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| "github.com/kelindar/talaria/internal/encoding/key" | ||
| "github.com/stretchr/testify/assert" | ||
| ) | ||
|
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||
| type MockWriter func(key key.Key, val []byte) error | ||
|
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| func (w MockWriter) Write(key key.Key, val []byte) error { | ||
| return w(key, val) | ||
| } | ||
|
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| func TestMulti(t *testing.T) { | ||
| var count int | ||
| sub := MockWriter(func(key key.Key, val []byte) error { | ||
| count++ | ||
| return nil | ||
| }) | ||
|
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| multiWriter := New(sub, sub, sub) | ||
| assert.NoError(t, multiWriter.Write(nil, nil)) | ||
| assert.Equal(t, 3, count) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| package multi | ||
|
|
||
| import ( | ||
| "github.com/kelindar/talaria/internal/encoding/key" | ||
| ) | ||
|
|
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| // SubWriter represents the sub-writer | ||
| type SubWriter interface { | ||
| Write(key.Key, []byte) error | ||
| } | ||
|
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| // Writer represents a writer that writes into multiple sub-writers. | ||
| type Writer struct { | ||
| writers []SubWriter | ||
| } | ||
|
|
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| // New ... | ||
| func New(writers ...SubWriter) *Writer { | ||
| return &Writer{ | ||
| writers: writers, | ||
| } | ||
| } | ||
|
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| // Write writes the data to the sink. | ||
| func (w *Writer) Write(key key.Key, val []byte) error { | ||
| for _, w := range w.writers { | ||
| if err := w.Write(key, val); err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
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| return nil | ||
| } |
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