Initial QSfera import

Server/vendor/github.com/segmentio/kafka-go/alterpartitionreassignments.go

@@ -0,0 +1,134 @@
+package kafka
+
+import (
+	"context"
+	"net"
+	"time"
+
+	"github.com/segmentio/kafka-go/protocol/alterpartitionreassignments"
+)
+
+// AlterPartitionReassignmentsRequest is a request to the AlterPartitionReassignments API.
+type AlterPartitionReassignmentsRequest struct {
+	// Address of the kafka broker to send the request to.
+	Addr net.Addr
+
+	// Topic is the name of the topic to alter partitions in. Keep this field empty and use Topic in AlterPartitionReassignmentsRequestAssignment to
+	// reassign to multiple topics.
+	Topic string
+
+	// Assignments is the list of partition reassignments to submit to the API.
+	Assignments []AlterPartitionReassignmentsRequestAssignment
+
+	// Timeout is the amount of time to wait for the request to complete.
+	Timeout time.Duration
+}
+
+// AlterPartitionReassignmentsRequestAssignment contains the requested reassignments for a single
+// partition.
+type AlterPartitionReassignmentsRequestAssignment struct {
+	// Topic is the name of the topic to alter partitions in. If empty, the value of Topic in AlterPartitionReassignmentsRequest is used.
+	Topic string
+
+	// PartitionID is the ID of the partition to make the reassignments in.
+	PartitionID int
+
+	// BrokerIDs is a slice of brokers to set the partition replicas to, or null to cancel a pending reassignment for this partition.
+	BrokerIDs []int
+}
+
+// AlterPartitionReassignmentsResponse is a response from the AlterPartitionReassignments API.
+type AlterPartitionReassignmentsResponse struct {
+	// Error is set to a non-nil value including the code and message if a top-level
+	// error was encountered when doing the update.
+	Error error
+
+	// PartitionResults contains the specific results for each partition.
+	PartitionResults []AlterPartitionReassignmentsResponsePartitionResult
+}
+
+// AlterPartitionReassignmentsResponsePartitionResult contains the detailed result of
+// doing reassignments for a single partition.
+type AlterPartitionReassignmentsResponsePartitionResult struct {
+	// Topic is the topic name.
+	Topic string
+
+	// PartitionID is the ID of the partition that was altered.
+	PartitionID int
+
+	// Error is set to a non-nil value including the code and message if an error was encountered
+	// during the update for this partition.
+	Error error
+}
+
+func (c *Client) AlterPartitionReassignments(
+	ctx context.Context,
+	req *AlterPartitionReassignmentsRequest,
+) (*AlterPartitionReassignmentsResponse, error) {
+	apiTopicMap := make(map[string]*alterpartitionreassignments.RequestTopic)
+
+	for _, assignment := range req.Assignments {
+		topic := assignment.Topic
+		if topic == "" {
+			topic = req.Topic
+		}
+
+		apiTopic := apiTopicMap[topic]
+		if apiTopic == nil {
+			apiTopic = &alterpartitionreassignments.RequestTopic{
+				Name: topic,
+			}
+			apiTopicMap[topic] = apiTopic
+		}
+
+		replicas := []int32{}
+		for _, brokerID := range assignment.BrokerIDs {
+			replicas = append(replicas, int32(brokerID))
+		}
+
+		apiTopic.Partitions = append(
+			apiTopic.Partitions,
+			alterpartitionreassignments.RequestPartition{
+				PartitionIndex: int32(assignment.PartitionID),
+				Replicas:       replicas,
+			},
+		)
+	}
+
+	apiReq := &alterpartitionreassignments.Request{
+		TimeoutMs: int32(req.Timeout.Milliseconds()),
+	}
+
+	for _, apiTopic := range apiTopicMap {
+		apiReq.Topics = append(apiReq.Topics, *apiTopic)
+	}
+
+	protoResp, err := c.roundTrip(
+		ctx,
+		req.Addr,
+		apiReq,
+	)
+	if err != nil {
+		return nil, err
+	}
+	apiResp := protoResp.(*alterpartitionreassignments.Response)
+
+	resp := &AlterPartitionReassignmentsResponse{
+		Error: makeError(apiResp.ErrorCode, apiResp.ErrorMessage),
+	}
+
+	for _, topicResult := range apiResp.Results {
+		for _, partitionResult := range topicResult.Partitions {
+			resp.PartitionResults = append(
+				resp.PartitionResults,
+				AlterPartitionReassignmentsResponsePartitionResult{
+					Topic:       topicResult.Name,
+					PartitionID: int(partitionResult.PartitionIndex),
+					Error:       makeError(partitionResult.ErrorCode, partitionResult.ErrorMessage),
+				},
+			)
+		}
+	}
+
+	return resp, nil
+}