[VOL-4291] Rw-core updates for gRPC migration

Change-Id: I8d5a554409115b29318089671ca4e1ab3fa98810
diff --git a/vendor/github.com/Shopify/sarama/describe_log_dirs_request.go b/vendor/github.com/Shopify/sarama/describe_log_dirs_request.go
new file mode 100644
index 0000000..c0bf04e
--- /dev/null
+++ b/vendor/github.com/Shopify/sarama/describe_log_dirs_request.go
@@ -0,0 +1,87 @@
+package sarama
+
+// DescribeLogDirsRequest is a describe request to get partitions' log size
+type DescribeLogDirsRequest struct {
+	// Version 0 and 1 are equal
+	// The version number is bumped to indicate that on quota violation brokers send out responses before throttling.
+	Version int16
+
+	// If this is an empty array, all topics will be queried
+	DescribeTopics []DescribeLogDirsRequestTopic
+}
+
+// DescribeLogDirsRequestTopic is a describe request about the log dir of one or more partitions within a Topic
+type DescribeLogDirsRequestTopic struct {
+	Topic        string
+	PartitionIDs []int32
+}
+
+func (r *DescribeLogDirsRequest) encode(pe packetEncoder) error {
+	length := len(r.DescribeTopics)
+	if length == 0 {
+		// In order to query all topics we must send null
+		length = -1
+	}
+
+	if err := pe.putArrayLength(length); err != nil {
+		return err
+	}
+
+	for _, d := range r.DescribeTopics {
+		if err := pe.putString(d.Topic); err != nil {
+			return err
+		}
+
+		if err := pe.putInt32Array(d.PartitionIDs); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (r *DescribeLogDirsRequest) decode(pd packetDecoder, version int16) error {
+	n, err := pd.getArrayLength()
+	if err != nil {
+		return err
+	}
+	if n == -1 {
+		n = 0
+	}
+
+	topics := make([]DescribeLogDirsRequestTopic, n)
+	for i := 0; i < n; i++ {
+		topics[i] = DescribeLogDirsRequestTopic{}
+
+		topic, err := pd.getString()
+		if err != nil {
+			return err
+		}
+		topics[i].Topic = topic
+
+		pIDs, err := pd.getInt32Array()
+		if err != nil {
+			return err
+		}
+		topics[i].PartitionIDs = pIDs
+	}
+	r.DescribeTopics = topics
+
+	return nil
+}
+
+func (r *DescribeLogDirsRequest) key() int16 {
+	return 35
+}
+
+func (r *DescribeLogDirsRequest) version() int16 {
+	return r.Version
+}
+
+func (r *DescribeLogDirsRequest) headerVersion() int16 {
+	return 1
+}
+
+func (r *DescribeLogDirsRequest) requiredVersion() KafkaVersion {
+	return V1_0_0_0
+}