[VOL-1386] This commit add "dep" as the package management tool
for voltha-go.
Change-Id: I52bc4911dd00a441756ec7c30f46d45091f3f90e
diff --git a/vendor/gopkg.in/Shopify/sarama.v1/produce_set.go b/vendor/gopkg.in/Shopify/sarama.v1/produce_set.go
new file mode 100644
index 0000000..4b42d9c
--- /dev/null
+++ b/vendor/gopkg.in/Shopify/sarama.v1/produce_set.go
@@ -0,0 +1,258 @@
+package sarama
+
+import (
+ "encoding/binary"
+ "errors"
+ "time"
+)
+
+type partitionSet struct {
+ msgs []*ProducerMessage
+ recordsToSend Records
+ bufferBytes int
+}
+
+type produceSet struct {
+ parent *asyncProducer
+ msgs map[string]map[int32]*partitionSet
+
+ bufferBytes int
+ bufferCount int
+}
+
+func newProduceSet(parent *asyncProducer) *produceSet {
+ return &produceSet{
+ msgs: make(map[string]map[int32]*partitionSet),
+ parent: parent,
+ }
+}
+
+func (ps *produceSet) add(msg *ProducerMessage) error {
+ var err error
+ var key, val []byte
+
+ if msg.Key != nil {
+ if key, err = msg.Key.Encode(); err != nil {
+ return err
+ }
+ }
+
+ if msg.Value != nil {
+ if val, err = msg.Value.Encode(); err != nil {
+ return err
+ }
+ }
+
+ timestamp := msg.Timestamp
+ if msg.Timestamp.IsZero() {
+ timestamp = time.Now()
+ }
+
+ partitions := ps.msgs[msg.Topic]
+ if partitions == nil {
+ partitions = make(map[int32]*partitionSet)
+ ps.msgs[msg.Topic] = partitions
+ }
+
+ var size int
+
+ set := partitions[msg.Partition]
+ if set == nil {
+ if ps.parent.conf.Version.IsAtLeast(V0_11_0_0) {
+ batch := &RecordBatch{
+ FirstTimestamp: timestamp,
+ Version: 2,
+ Codec: ps.parent.conf.Producer.Compression,
+ CompressionLevel: ps.parent.conf.Producer.CompressionLevel,
+ ProducerID: ps.parent.txnmgr.producerID,
+ ProducerEpoch: ps.parent.txnmgr.producerEpoch,
+ }
+ if ps.parent.conf.Producer.Idempotent {
+ batch.FirstSequence = msg.sequenceNumber
+ }
+ set = &partitionSet{recordsToSend: newDefaultRecords(batch)}
+ size = recordBatchOverhead
+ } else {
+ set = &partitionSet{recordsToSend: newLegacyRecords(new(MessageSet))}
+ }
+ partitions[msg.Partition] = set
+ }
+ set.msgs = append(set.msgs, msg)
+
+ if ps.parent.conf.Version.IsAtLeast(V0_11_0_0) {
+ if ps.parent.conf.Producer.Idempotent && msg.sequenceNumber < set.recordsToSend.RecordBatch.FirstSequence {
+ return errors.New("Assertion failed: Message out of sequence added to a batch")
+ }
+ // We are being conservative here to avoid having to prep encode the record
+ size += maximumRecordOverhead
+ rec := &Record{
+ Key: key,
+ Value: val,
+ TimestampDelta: timestamp.Sub(set.recordsToSend.RecordBatch.FirstTimestamp),
+ }
+ size += len(key) + len(val)
+ if len(msg.Headers) > 0 {
+ rec.Headers = make([]*RecordHeader, len(msg.Headers))
+ for i := range msg.Headers {
+ rec.Headers[i] = &msg.Headers[i]
+ size += len(rec.Headers[i].Key) + len(rec.Headers[i].Value) + 2*binary.MaxVarintLen32
+ }
+ }
+ set.recordsToSend.RecordBatch.addRecord(rec)
+ } else {
+ msgToSend := &Message{Codec: CompressionNone, Key: key, Value: val}
+ if ps.parent.conf.Version.IsAtLeast(V0_10_0_0) {
+ msgToSend.Timestamp = timestamp
+ msgToSend.Version = 1
+ }
+ set.recordsToSend.MsgSet.addMessage(msgToSend)
+ size = producerMessageOverhead + len(key) + len(val)
+ }
+
+ set.bufferBytes += size
+ ps.bufferBytes += size
+ ps.bufferCount++
+
+ return nil
+}
+
+func (ps *produceSet) buildRequest() *ProduceRequest {
+ req := &ProduceRequest{
+ RequiredAcks: ps.parent.conf.Producer.RequiredAcks,
+ Timeout: int32(ps.parent.conf.Producer.Timeout / time.Millisecond),
+ }
+ if ps.parent.conf.Version.IsAtLeast(V0_10_0_0) {
+ req.Version = 2
+ }
+ if ps.parent.conf.Version.IsAtLeast(V0_11_0_0) {
+ req.Version = 3
+ }
+
+ for topic, partitionSets := range ps.msgs {
+ for partition, set := range partitionSets {
+ if req.Version >= 3 {
+ // If the API version we're hitting is 3 or greater, we need to calculate
+ // offsets for each record in the batch relative to FirstOffset.
+ // Additionally, we must set LastOffsetDelta to the value of the last offset
+ // in the batch. Since the OffsetDelta of the first record is 0, we know that the
+ // final record of any batch will have an offset of (# of records in batch) - 1.
+ // (See https://cwiki.apache.org/confluence/display/KAFKA/A+Guide+To+The+Kafka+Protocol#AGuideToTheKafkaProtocol-Messagesets
+ // under the RecordBatch section for details.)
+ rb := set.recordsToSend.RecordBatch
+ if len(rb.Records) > 0 {
+ rb.LastOffsetDelta = int32(len(rb.Records) - 1)
+ for i, record := range rb.Records {
+ record.OffsetDelta = int64(i)
+ }
+ }
+ req.AddBatch(topic, partition, rb)
+ continue
+ }
+ if ps.parent.conf.Producer.Compression == CompressionNone {
+ req.AddSet(topic, partition, set.recordsToSend.MsgSet)
+ } else {
+ // When compression is enabled, the entire set for each partition is compressed
+ // and sent as the payload of a single fake "message" with the appropriate codec
+ // set and no key. When the server sees a message with a compression codec, it
+ // decompresses the payload and treats the result as its message set.
+
+ if ps.parent.conf.Version.IsAtLeast(V0_10_0_0) {
+ // If our version is 0.10 or later, assign relative offsets
+ // to the inner messages. This lets the broker avoid
+ // recompressing the message set.
+ // (See https://cwiki.apache.org/confluence/display/KAFKA/KIP-31+-+Move+to+relative+offsets+in+compressed+message+sets
+ // for details on relative offsets.)
+ for i, msg := range set.recordsToSend.MsgSet.Messages {
+ msg.Offset = int64(i)
+ }
+ }
+ payload, err := encode(set.recordsToSend.MsgSet, ps.parent.conf.MetricRegistry)
+ if err != nil {
+ Logger.Println(err) // if this happens, it's basically our fault.
+ panic(err)
+ }
+ compMsg := &Message{
+ Codec: ps.parent.conf.Producer.Compression,
+ CompressionLevel: ps.parent.conf.Producer.CompressionLevel,
+ Key: nil,
+ Value: payload,
+ Set: set.recordsToSend.MsgSet, // Provide the underlying message set for accurate metrics
+ }
+ if ps.parent.conf.Version.IsAtLeast(V0_10_0_0) {
+ compMsg.Version = 1
+ compMsg.Timestamp = set.recordsToSend.MsgSet.Messages[0].Msg.Timestamp
+ }
+ req.AddMessage(topic, partition, compMsg)
+ }
+ }
+ }
+
+ return req
+}
+
+func (ps *produceSet) eachPartition(cb func(topic string, partition int32, pSet *partitionSet)) {
+ for topic, partitionSet := range ps.msgs {
+ for partition, set := range partitionSet {
+ cb(topic, partition, set)
+ }
+ }
+}
+
+func (ps *produceSet) dropPartition(topic string, partition int32) []*ProducerMessage {
+ if ps.msgs[topic] == nil {
+ return nil
+ }
+ set := ps.msgs[topic][partition]
+ if set == nil {
+ return nil
+ }
+ ps.bufferBytes -= set.bufferBytes
+ ps.bufferCount -= len(set.msgs)
+ delete(ps.msgs[topic], partition)
+ return set.msgs
+}
+
+func (ps *produceSet) wouldOverflow(msg *ProducerMessage) bool {
+ version := 1
+ if ps.parent.conf.Version.IsAtLeast(V0_11_0_0) {
+ version = 2
+ }
+
+ switch {
+ // Would we overflow our maximum possible size-on-the-wire? 10KiB is arbitrary overhead for safety.
+ case ps.bufferBytes+msg.byteSize(version) >= int(MaxRequestSize-(10*1024)):
+ return true
+ // Would we overflow the size-limit of a message-batch for this partition?
+ case ps.msgs[msg.Topic] != nil && ps.msgs[msg.Topic][msg.Partition] != nil &&
+ ps.msgs[msg.Topic][msg.Partition].bufferBytes+msg.byteSize(version) >= ps.parent.conf.Producer.MaxMessageBytes:
+ return true
+ // Would we overflow simply in number of messages?
+ case ps.parent.conf.Producer.Flush.MaxMessages > 0 && ps.bufferCount >= ps.parent.conf.Producer.Flush.MaxMessages:
+ return true
+ default:
+ return false
+ }
+}
+
+func (ps *produceSet) readyToFlush() bool {
+ switch {
+ // If we don't have any messages, nothing else matters
+ case ps.empty():
+ return false
+ // If all three config values are 0, we always flush as-fast-as-possible
+ case ps.parent.conf.Producer.Flush.Frequency == 0 && ps.parent.conf.Producer.Flush.Bytes == 0 && ps.parent.conf.Producer.Flush.Messages == 0:
+ return true
+ // If we've passed the message trigger-point
+ case ps.parent.conf.Producer.Flush.Messages > 0 && ps.bufferCount >= ps.parent.conf.Producer.Flush.Messages:
+ return true
+ // If we've passed the byte trigger-point
+ case ps.parent.conf.Producer.Flush.Bytes > 0 && ps.bufferBytes >= ps.parent.conf.Producer.Flush.Bytes:
+ return true
+ default:
+ return false
+ }
+}
+
+func (ps *produceSet) empty() bool {
+ return ps.bufferCount == 0
+}