Initial QSfera import

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

@@ -0,0 +1,103 @@
+package kafka
+
+import (
+	"context"
+	"fmt"
+	"net"
+	"time"
+
+	"github.com/segmentio/kafka-go/protocol/createpartitions"
+)
+
+// CreatePartitionsRequest represents a request sent to a kafka broker to create
+// and update topic parititions.
+type CreatePartitionsRequest struct {
+	// Address of the kafka broker to send the request to.
+	Addr net.Addr
+
+	// List of topics to create and their configuration.
+	Topics []TopicPartitionsConfig
+
+	// When set to true, topics are not created but the configuration is
+	// validated as if they were.
+	ValidateOnly bool
+}
+
+// CreatePartitionsResponse represents a response from a kafka broker to a partition
+// creation request.
+type CreatePartitionsResponse struct {
+	// The amount of time that the broker throttled the request.
+	Throttle time.Duration
+
+	// Mapping of topic names to errors that occurred while attempting to create
+	// the topics.
+	//
+	// The errors contain the kafka error code. Programs may use the standard
+	// errors.Is function to test the error against kafka error codes.
+	Errors map[string]error
+}
+
+// CreatePartitions sends a partitions creation request to a kafka broker and returns the
+// response.
+func (c *Client) CreatePartitions(ctx context.Context, req *CreatePartitionsRequest) (*CreatePartitionsResponse, error) {
+	topics := make([]createpartitions.RequestTopic, len(req.Topics))
+
+	for i, t := range req.Topics {
+		topics[i] = createpartitions.RequestTopic{
+			Name:        t.Name,
+			Count:       t.Count,
+			Assignments: t.assignments(),
+		}
+	}
+
+	m, err := c.roundTrip(ctx, req.Addr, &createpartitions.Request{
+		Topics:       topics,
+		TimeoutMs:    c.timeoutMs(ctx, defaultCreatePartitionsTimeout),
+		ValidateOnly: req.ValidateOnly,
+	})
+
+	if err != nil {
+		return nil, fmt.Errorf("kafka.(*Client).CreatePartitions: %w", err)
+	}
+
+	res := m.(*createpartitions.Response)
+	ret := &CreatePartitionsResponse{
+		Throttle: makeDuration(res.ThrottleTimeMs),
+		Errors:   make(map[string]error, len(res.Results)),
+	}
+
+	for _, t := range res.Results {
+		ret.Errors[t.Name] = makeError(t.ErrorCode, t.ErrorMessage)
+	}
+
+	return ret, nil
+}
+
+type TopicPartitionsConfig struct {
+	// Topic name
+	Name string
+
+	// Topic partition's count.
+	Count int32
+
+	// TopicPartitionAssignments among kafka brokers for this topic partitions.
+	TopicPartitionAssignments []TopicPartitionAssignment
+}
+
+func (t *TopicPartitionsConfig) assignments() []createpartitions.RequestAssignment {
+	if len(t.TopicPartitionAssignments) == 0 {
+		return nil
+	}
+	assignments := make([]createpartitions.RequestAssignment, len(t.TopicPartitionAssignments))
+	for i, a := range t.TopicPartitionAssignments {
+		assignments[i] = createpartitions.RequestAssignment{
+			BrokerIDs: a.BrokerIDs,
+		}
+	}
+	return assignments
+}
+
+type TopicPartitionAssignment struct {
+	// Broker IDs
+	BrokerIDs []int32
+}