gunli commented on code in PR #1071:
URL: https://github.com/apache/pulsar-client-go/pull/1071#discussion_r1276242922
##########
pulsar/producer_partition.go:
##########
@@ -1121,78 +958,301 @@ func (p *partitionProducer) SendAsync(ctx
context.Context, msg *ProducerMessage,
p.internalSendAsync(ctx, msg, callback, false)
}
-func (p *partitionProducer) internalSendAsync(ctx context.Context, msg
*ProducerMessage,
- callback func(MessageID, *ProducerMessage, error), flushImmediately
bool) {
+func (p *partitionProducer) validateMsg(msg *ProducerMessage) error {
if msg == nil {
- p.log.Error("Message is nil")
- runCallback(callback, nil, msg, newError(InvalidMessage,
"Message is nil"))
- return
+ return newError(InvalidMessage, "Message is nil")
}
if msg.Value != nil && msg.Payload != nil {
- p.log.Error("Can not set Value and Payload both")
- runCallback(callback, nil, msg, newError(InvalidMessage, "Can
not set Value and Payload both"))
- return
+ return newError(InvalidMessage, "Can not set Value and Payload
both")
}
- // Register transaction operation to transaction and the transaction
coordinator.
- var newCallback func(MessageID, *ProducerMessage, error)
- var txn *transaction
- if msg.Transaction != nil {
- transactionImpl := (msg.Transaction).(*transaction)
- txn = transactionImpl
- if transactionImpl.state != TxnOpen {
- p.log.WithField("state",
transactionImpl.state).Error("Failed to send message" +
- " by a non-open transaction.")
- runCallback(callback, nil, msg, newError(InvalidStatus,
"Failed to send message by a non-open transaction."))
- return
+ if p.options.DisableMultiSchema {
+ if msg.Schema != nil && p.options.Schema != nil &&
+ msg.Schema.GetSchemaInfo().hash() !=
p.options.Schema.GetSchemaInfo().hash() {
+ p.log.Errorf("The producer %s of the topic %s is
disabled the `MultiSchema`", p.producerName, p.topic)
+ return fmt.Errorf("msg schema can not match with
producer schema")
}
+ }
- if err := transactionImpl.registerProducerTopic(p.topic); err
!= nil {
- runCallback(callback, nil, msg, err)
- return
+ return nil
+}
+
+func (p *partitionProducer) updateSchema(sr *sendRequest) error {
+ var schema Schema
+ var schemaVersion []byte
+ var err error
+
+ if sr.msg.Schema != nil {
+ schema = sr.msg.Schema
+ } else if p.options.Schema != nil {
+ schema = p.options.Schema
+ }
+
+ if schema == nil {
+ return nil
+ }
+
+ schemaVersion = p.schemaCache.Get(schema.GetSchemaInfo())
+ if schemaVersion == nil {
+ schemaVersion, err = p.getOrCreateSchema(schema.GetSchemaInfo())
+ if err != nil {
+ return fmt.Errorf("get schema version fail, err: %w",
err)
}
- if err := transactionImpl.registerSendOrAckOp(); err != nil {
- runCallback(callback, nil, msg, err)
- return
+ p.schemaCache.Put(schema.GetSchemaInfo(), schemaVersion)
+ }
+
+ sr.schema = schema
+ sr.schemaVersion = schemaVersion
+ return nil
+}
+
+func (p *partitionProducer) updateUncompressPayload(sr *sendRequest) error {
+ // read payload from message
+ sr.uncompressedPayload = sr.msg.Payload
+
+ if sr.msg.Value != nil {
+ if sr.schema == nil {
+ p.log.Errorf("Schema encode message failed %s",
sr.msg.Value)
+ return newError(SchemaFailure, "set schema value
without setting schema")
}
- newCallback = func(id MessageID, producerMessage
*ProducerMessage, err error) {
- runCallback(callback, id, producerMessage, err)
- transactionImpl.endSendOrAckOp(err)
+
+ // payload and schema are mutually exclusive
+ // try to get payload from schema value only if payload is not
set
+ schemaPayload, err := sr.schema.Encode(sr.msg.Value)
+ if err != nil {
+ p.log.WithError(err).Errorf("Schema encode message
failed %s", sr.msg.Value)
+ return newError(SchemaFailure, err.Error())
}
+
+ sr.uncompressedPayload = schemaPayload
+ }
+
+ sr.uncompressedSize = int64(len(sr.uncompressedPayload))
+ return nil
+}
+
+func (p *partitionProducer) updateMetaData(sr *sendRequest) {
+ deliverAt := sr.msg.DeliverAt
+ if sr.msg.DeliverAfter.Nanoseconds() > 0 {
+ deliverAt = time.Now().Add(sr.msg.DeliverAfter)
+ }
+
+ sr.mm = p.genMetadata(sr.msg, int(sr.uncompressedSize), deliverAt)
+
+ // set default ReplicationClusters when DisableReplication
+ if sr.msg.DisableReplication {
+ sr.msg.ReplicationClusters = []string{"__local__"}
+ }
+
+ sr.sendAsBatch = !p.options.DisableBatching &&
+ sr.msg.ReplicationClusters == nil &&
+ deliverAt.UnixNano() < 0
+
+ if !sr.sendAsBatch {
+ // update sequence id for metadata, make the size of
msgMetadata more accurate
+ // batch sending will update sequence ID in the BatchBuilder
+ p.updateMetadataSeqID(sr.mm, sr.msg)
+ }
+
+ sr.deliverAt = deliverAt
+}
+
+func (p *partitionProducer) updateChunkInfo(sr *sendRequest) error {
+ checkSize := sr.uncompressedSize
+ if !sr.sendAsBatch {
+ sr.compressedPayload = p.compressionProvider.Compress(nil,
sr.uncompressedPayload)
+ sr.compressedSize = len(sr.compressedPayload)
+
+ // set the compress type in msgMetaData
+ compressionType := pb.CompressionType(p.options.CompressionType)
+ if compressionType != pb.CompressionType_NONE {
+ sr.mm.Compression = &compressionType
+ }
+
+ checkSize = int64(sr.compressedSize)
+ }
+
+ sr.maxMessageSize = int32(int64(p._getConn().GetMaxMessageSize()))
Review Comment:
MaxMessageSize is cached in the conn when a conn is ready, you can check the
code of connection and connectionPool, this is OK.
Actually, `p.getOrCreateSchema()` will trigger a block RPC call. What make
`SendAsync` not a real asyn func is the fixed length `PendingQueue`, if
pengding queue can be expanded at runtime,
shema-encoding/compress/getOrCreateSchema can be done in `internalSend()`, that
can make it a real asyn func.
I don't think memLimit and fixed length queue is neccessary in a language
with GC like JAVA and Go, 'cause we have semaphore and dataChan to control how
many messages can be pending. As I mentioned in #1043 .
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