riotpiaole
b1f039ae25
Implements SendMessage (size cap, FIFO dedup, shard routing), ReceiveMessage (long-poll loop across active+closing shards, FIFO per-group exclusivity gating, redelivery hand-out), DeleteMessage (ack + low-watermark offset advancement), and ChangeMessageVisibility against the Redis state layer and a real Kafka producer/consumer.
30 lines
859 B
Go
30 lines
859 B
Go
package queue
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import (
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"context"
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"fmt"
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"time"
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goredis "github.com/redis/go-redis/v9"
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kmsvcredis "github.com/rockliang/kafka-management-service/internal/redis"
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)
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type ChangeVisibilityService struct {
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Redis *goredis.Client
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}
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// ChangeMessageVisibility implements ChangeMessageVisibility (design.md
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// §2b): extends (or shortens) how long a received message stays invisible
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// to other consumers, without affecting its receive count.
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func (s *ChangeVisibilityService) ChangeMessageVisibility(ctx context.Context, queueName, receiptHandle string, newTimeout time.Duration) error {
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ok, err := kmsvcredis.ExtendVisibility(ctx, s.Redis, queueName, receiptHandle, newTimeout)
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if err != nil {
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return fmt.Errorf("change visibility %s: %w", queueName, err)
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}
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if !ok {
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return fmt.Errorf("receipt handle not found or already expired")
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}
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return nil
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}
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