1 files changed, 50 insertions, 0 deletions
diff --git a/weed/mq/kafka/protocol/offset_storage_adapter.go b/weed/mq/kafka/protocol/offset_storage_adapter.go
new file mode 100644
index 000000000..079c5b621
--- /dev/null
+++ b/weed/mq/kafka/protocol/offset_storage_adapter.go
@@ -0,0 +1,50 @@
+package protocol
+
+import (
+	"github.com/seaweedfs/seaweedfs/weed/mq/kafka/consumer_offset"
+)
+
+// offsetStorageAdapter adapts consumer_offset.OffsetStorage to ConsumerOffsetStorage interface
+type offsetStorageAdapter struct {
+	storage consumer_offset.OffsetStorage
+}
+
+// newOffsetStorageAdapter creates a new adapter
+func newOffsetStorageAdapter(storage consumer_offset.OffsetStorage) ConsumerOffsetStorage {
+	return &offsetStorageAdapter{storage: storage}
+}
+
+func (a *offsetStorageAdapter) CommitOffset(group, topic string, partition int32, offset int64, metadata string) error {
+	return a.storage.CommitOffset(group, topic, partition, offset, metadata)
+}
+
+func (a *offsetStorageAdapter) FetchOffset(group, topic string, partition int32) (int64, string, error) {
+	return a.storage.FetchOffset(group, topic, partition)
+}
+
+func (a *offsetStorageAdapter) FetchAllOffsets(group string) (map[TopicPartition]OffsetMetadata, error) {
+	offsets, err := a.storage.FetchAllOffsets(group)
+	if err != nil {
+		return nil, err
+	}
+
+	// Convert from consumer_offset types to protocol types
+	result := make(map[TopicPartition]OffsetMetadata, len(offsets))
+	for tp, om := range offsets {
+		result[TopicPartition{Topic: tp.Topic, Partition: tp.Partition}] = OffsetMetadata{
+			Offset:   om.Offset,
+			Metadata: om.Metadata,
+		}
+	}
+
+	return result, nil
+}
+
+func (a *offsetStorageAdapter) DeleteGroup(group string) error {
+	return a.storage.DeleteGroup(group)
+}
+
+func (a *offsetStorageAdapter) Close() error {
+	return a.storage.Close()
+}
+