Add NETCONF notification for ONU activation and Kafka client to receive events, update dependencies

Change-Id: I5f768fa8077ef7c64e00a534744ca47492344935
diff --git a/vendor/github.com/Shopify/sarama/offset_fetch_response.go b/vendor/github.com/Shopify/sarama/offset_fetch_response.go
new file mode 100644
index 0000000..1944922
--- /dev/null
+++ b/vendor/github.com/Shopify/sarama/offset_fetch_response.go
@@ -0,0 +1,280 @@
+package sarama
+
+type OffsetFetchResponseBlock struct {
+	Offset      int64
+	LeaderEpoch int32
+	Metadata    string
+	Err         KError
+}
+
+func (b *OffsetFetchResponseBlock) decode(pd packetDecoder, version int16) (err error) {
+	isFlexible := version >= 6
+
+	b.Offset, err = pd.getInt64()
+	if err != nil {
+		return err
+	}
+
+	if version >= 5 {
+		b.LeaderEpoch, err = pd.getInt32()
+		if err != nil {
+			return err
+		}
+	}
+
+	if isFlexible {
+		b.Metadata, err = pd.getCompactString()
+	} else {
+		b.Metadata, err = pd.getString()
+	}
+	if err != nil {
+		return err
+	}
+
+	tmp, err := pd.getInt16()
+	if err != nil {
+		return err
+	}
+	b.Err = KError(tmp)
+
+	if isFlexible {
+		if _, err := pd.getEmptyTaggedFieldArray(); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (b *OffsetFetchResponseBlock) encode(pe packetEncoder, version int16) (err error) {
+	isFlexible := version >= 6
+	pe.putInt64(b.Offset)
+
+	if version >= 5 {
+		pe.putInt32(b.LeaderEpoch)
+	}
+	if isFlexible {
+		err = pe.putCompactString(b.Metadata)
+	} else {
+		err = pe.putString(b.Metadata)
+	}
+	if err != nil {
+		return err
+	}
+
+	pe.putInt16(int16(b.Err))
+
+	if isFlexible {
+		pe.putEmptyTaggedFieldArray()
+	}
+
+	return nil
+}
+
+type OffsetFetchResponse struct {
+	Version        int16
+	ThrottleTimeMs int32
+	Blocks         map[string]map[int32]*OffsetFetchResponseBlock
+	Err            KError
+}
+
+func (r *OffsetFetchResponse) encode(pe packetEncoder) (err error) {
+	isFlexible := r.Version >= 6
+
+	if r.Version >= 3 {
+		pe.putInt32(r.ThrottleTimeMs)
+	}
+	if isFlexible {
+		pe.putCompactArrayLength(len(r.Blocks))
+	} else {
+		err = pe.putArrayLength(len(r.Blocks))
+	}
+	if err != nil {
+		return err
+	}
+
+	for topic, partitions := range r.Blocks {
+		if isFlexible {
+			err = pe.putCompactString(topic)
+		} else {
+			err = pe.putString(topic)
+		}
+		if err != nil {
+			return err
+		}
+
+		if isFlexible {
+			pe.putCompactArrayLength(len(partitions))
+		} else {
+			err = pe.putArrayLength(len(partitions))
+		}
+		if err != nil {
+			return err
+		}
+		for partition, block := range partitions {
+			pe.putInt32(partition)
+			if err := block.encode(pe, r.Version); err != nil {
+				return err
+			}
+		}
+		if isFlexible {
+			pe.putEmptyTaggedFieldArray()
+		}
+	}
+	if r.Version >= 2 {
+		pe.putInt16(int16(r.Err))
+	}
+	if isFlexible {
+		pe.putEmptyTaggedFieldArray()
+	}
+	return nil
+}
+
+func (r *OffsetFetchResponse) decode(pd packetDecoder, version int16) (err error) {
+	r.Version = version
+	isFlexible := version >= 6
+
+	if version >= 3 {
+		r.ThrottleTimeMs, err = pd.getInt32()
+		if err != nil {
+			return err
+		}
+	}
+
+	var numTopics int
+	if isFlexible {
+		numTopics, err = pd.getCompactArrayLength()
+	} else {
+		numTopics, err = pd.getArrayLength()
+	}
+	if err != nil {
+		return err
+	}
+
+	if numTopics > 0 {
+		r.Blocks = make(map[string]map[int32]*OffsetFetchResponseBlock, numTopics)
+		for i := 0; i < numTopics; i++ {
+			var name string
+			if isFlexible {
+				name, err = pd.getCompactString()
+			} else {
+				name, err = pd.getString()
+			}
+			if err != nil {
+				return err
+			}
+
+			var numBlocks int
+			if isFlexible {
+				numBlocks, err = pd.getCompactArrayLength()
+			} else {
+				numBlocks, err = pd.getArrayLength()
+			}
+			if err != nil {
+				return err
+			}
+
+			r.Blocks[name] = nil
+			if numBlocks > 0 {
+				r.Blocks[name] = make(map[int32]*OffsetFetchResponseBlock, numBlocks)
+			}
+			for j := 0; j < numBlocks; j++ {
+				id, err := pd.getInt32()
+				if err != nil {
+					return err
+				}
+
+				block := new(OffsetFetchResponseBlock)
+				err = block.decode(pd, version)
+				if err != nil {
+					return err
+				}
+
+				r.Blocks[name][id] = block
+			}
+
+			if isFlexible {
+				if _, err := pd.getEmptyTaggedFieldArray(); err != nil {
+					return err
+				}
+			}
+		}
+	}
+
+	if version >= 2 {
+		kerr, err := pd.getInt16()
+		if err != nil {
+			return err
+		}
+		r.Err = KError(kerr)
+	}
+
+	if isFlexible {
+		if _, err := pd.getEmptyTaggedFieldArray(); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (r *OffsetFetchResponse) key() int16 {
+	return 9
+}
+
+func (r *OffsetFetchResponse) version() int16 {
+	return r.Version
+}
+
+func (r *OffsetFetchResponse) headerVersion() int16 {
+	if r.Version >= 6 {
+		return 1
+	}
+
+	return 0
+}
+
+func (r *OffsetFetchResponse) requiredVersion() KafkaVersion {
+	switch r.Version {
+	case 1:
+		return V0_8_2_0
+	case 2:
+		return V0_10_2_0
+	case 3:
+		return V0_11_0_0
+	case 4:
+		return V2_0_0_0
+	case 5:
+		return V2_1_0_0
+	case 6:
+		return V2_4_0_0
+	case 7:
+		return V2_5_0_0
+	default:
+		return MinVersion
+	}
+}
+
+func (r *OffsetFetchResponse) GetBlock(topic string, partition int32) *OffsetFetchResponseBlock {
+	if r.Blocks == nil {
+		return nil
+	}
+
+	if r.Blocks[topic] == nil {
+		return nil
+	}
+
+	return r.Blocks[topic][partition]
+}
+
+func (r *OffsetFetchResponse) AddBlock(topic string, partition int32, block *OffsetFetchResponseBlock) {
+	if r.Blocks == nil {
+		r.Blocks = make(map[string]map[int32]*OffsetFetchResponseBlock)
+	}
+	partitions := r.Blocks[topic]
+	if partitions == nil {
+		partitions = make(map[int32]*OffsetFetchResponseBlock)
+		r.Blocks[topic] = partitions
+	}
+	partitions[partition] = block
+}