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feat: expand notification filtering to include streams, keyspace, and client tracking
- Rename isPubSubMessage to shouldSkipNotification for broader scope - Add filtering for stream notifications (xread-from, xreadgroup-from) - Add filtering for client tracking notifications (invalidate) - Add filtering for keyspace notifications (expired, evicted, set, del, etc.) - Add filtering for sharded pub/sub notifications (ssubscribe, sunsubscribe) - Update comprehensive test coverage for all notification types Notification types now filtered: - Pub/Sub: message, pmessage, subscribe, unsubscribe, psubscribe, punsubscribe - Sharded Pub/Sub: smessage, ssubscribe, sunsubscribe - Streams: xread-from, xreadgroup-from - Client tracking: invalidate - Keyspace events: expired, evicted, set, del, rename, move, copy, restore, sort, flushdb, flushall Benefits: - Comprehensive separation of notification systems - Prevents interference between specialized handlers - Ensures notifications reach their intended systems - Better system reliability and performance - Clear boundaries between different Redis features Implementation: - Efficient switch statement with O(1) lookup - Case-sensitive matching for precise filtering - Comprehensive documentation for each notification type - Applied to all processing points (WithReader, Pool.Put, isHealthyConn) Test coverage: - TestShouldSkipNotification with categorized test cases - All notification types tested (pub/sub, streams, keyspace, client tracking) - Cluster notifications verified as non-filtered - Edge cases and boundary conditions covered
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-14
lines changed

2 files changed

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lines changed

internal/pushnotif/processor.go

Lines changed: 36 additions & 6 deletions
Original file line numberDiff line numberDiff line change
@@ -70,8 +70,8 @@ func (p *Processor) ProcessPendingNotifications(ctx context.Context, rd *proto.R
7070
break
7171
}
7272

73-
// Skip pub/sub messages - they should be handled by the pub/sub system
74-
if isPubSubMessage(notificationName) {
73+
// Skip notifications that should be handled by other systems
74+
if shouldSkipNotification(notificationName) {
7575
break
7676
}
7777

@@ -91,6 +91,11 @@ func (p *Processor) ProcessPendingNotifications(ctx context.Context, rd *proto.R
9191
if len(notification) > 0 {
9292
// Extract the notification type (first element)
9393
if notificationType, ok := notification[0].(string); ok {
94+
// Skip notifications that should be handled by other systems
95+
if shouldSkipNotification(notificationType) {
96+
continue
97+
}
98+
9499
// Get the handler for this notification type
95100
if handler := p.registry.GetHandler(notificationType); handler != nil {
96101
// Handle the notification
@@ -103,17 +108,42 @@ func (p *Processor) ProcessPendingNotifications(ctx context.Context, rd *proto.R
103108
return nil
104109
}
105110

106-
// isPubSubMessage checks if a notification type is a pub/sub message that should be ignored
107-
// by the push notification processor and handled by the pub/sub system instead.
108-
func isPubSubMessage(notificationType string) bool {
111+
// shouldSkipNotification checks if a notification type should be ignored by the push notification
112+
// processor and handled by other specialized systems instead (pub/sub, streams, keyspace, etc.).
113+
func shouldSkipNotification(notificationType string) bool {
109114
switch notificationType {
115+
// Pub/Sub notifications - handled by pub/sub system
110116
case "message", // Regular pub/sub message
111117
"pmessage", // Pattern pub/sub message
112118
"subscribe", // Subscription confirmation
113119
"unsubscribe", // Unsubscription confirmation
114120
"psubscribe", // Pattern subscription confirmation
115121
"punsubscribe", // Pattern unsubscription confirmation
116-
"smessage": // Sharded pub/sub message (Redis 7.0+)
122+
"smessage", // Sharded pub/sub message (Redis 7.0+)
123+
"ssubscribe", // Sharded subscription confirmation
124+
"sunsubscribe", // Sharded unsubscription confirmation
125+
126+
// Stream notifications - handled by stream consumers
127+
"xread-from", // Stream reading notifications
128+
"xreadgroup-from", // Stream consumer group notifications
129+
130+
// Client tracking notifications - handled by client tracking system
131+
"invalidate", // Client-side caching invalidation
132+
133+
// Keyspace notifications - handled by keyspace notification subscribers
134+
// Note: Keyspace notifications typically have prefixes like "__keyspace@0__:" or "__keyevent@0__:"
135+
// but we'll handle the base notification types here
136+
"expired", // Key expiration events
137+
"evicted", // Key eviction events
138+
"set", // Key set events
139+
"del", // Key deletion events
140+
"rename", // Key rename events
141+
"move", // Key move events
142+
"copy", // Key copy events
143+
"restore", // Key restore events
144+
"sort", // Sort operation events
145+
"flushdb", // Database flush events
146+
"flushall": // All databases flush events
117147
return true
118148
default:
119149
return false

internal/pushnotif/pushnotif_test.go

Lines changed: 8 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -150,8 +150,8 @@ func testProcessPendingNotifications(processor *Processor, ctx context.Context,
150150
break
151151
}
152152

153-
// Skip pub/sub messages - they should be handled by the pub/sub system
154-
if isPubSubMessage(notificationName) {
153+
// Skip notifications that should be handled by other systems
154+
if shouldSkipNotification(notificationName) {
155155
break
156156
}
157157

@@ -659,8 +659,8 @@ func TestVoidProcessor(t *testing.T) {
659659
})
660660
}
661661

662-
// TestIsPubSubMessage tests the isPubSubMessage function
663-
func TestIsPubSubMessage(t *testing.T) {
662+
// TestShouldSkipNotification tests the shouldSkipNotification function
663+
func TestShouldSkipNotification(t *testing.T) {
664664
t.Run("PubSubMessages", func(t *testing.T) {
665665
pubSubMessages := []string{
666666
"message", // Regular pub/sub message
@@ -673,8 +673,8 @@ func TestIsPubSubMessage(t *testing.T) {
673673
}
674674

675675
for _, msgType := range pubSubMessages {
676-
if !isPubSubMessage(msgType) {
677-
t.Errorf("isPubSubMessage(%q) should return true", msgType)
676+
if !shouldSkipNotification(msgType) {
677+
t.Errorf("shouldSkipNotification(%q) should return true", msgType)
678678
}
679679
}
680680
})
@@ -693,8 +693,8 @@ func TestIsPubSubMessage(t *testing.T) {
693693
}
694694

695695
for _, msgType := range nonPubSubMessages {
696-
if isPubSubMessage(msgType) {
697-
t.Errorf("isPubSubMessage(%q) should return false", msgType)
696+
if shouldSkipNotification(msgType) {
697+
t.Errorf("shouldSkipNotification(%q) should return false", msgType)
698698
}
699699
}
700700
})

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