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Merge branch 'nslaughter/azureeventhubreceiver-20240611' into nslaugh…
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190
collector/components/azureeventhubreceiver/azureeventprocessor.go
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package azureeventhubreceiver | ||
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// https://github.com/Azure/azure-sdk-for-go/blob/main/sdk/messaging/azeventhubs/processor.go | ||
// https://github.com/Azure/azure-sdk-for-go/blob/main/sdk/messaging/azeventhubs/processor_partition_client.go | ||
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/* | ||
>> https://github.com/Azure/azure-sdk-for-go/blob/main/sdk/messaging/azeventhubs/example_consuming_with_checkpoints_test.go | ||
- get a processor | ||
- dispatchPartitionClients | ||
- processor.Run | ||
>> https://github.com/Azure/azure-sdk-for-go/blob/main/sdk/messaging/azeventhubs/example_consuming_events_test.go | ||
- ReceiveEvents(ctx, count int, options *ReceiveEventsOptions) ([]*ReceivedEventData, error) | ||
- call cancel() | ||
- panic if there's an error that isn't context.DeadlineExceeded | ||
- process events | ||
--> put them into the entity thingy | ||
*/ | ||
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// import ( | ||
// "context" | ||
// "errors" | ||
// "fmt" | ||
// "time" | ||
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// "github.com/Azure/azure-sdk-for-go/sdk/messaging/azeventhubs" | ||
// "github.com/Azure/azure-sdk-for-go/sdk/messaging/azeventhubs/checkpoints" | ||
// "github.com/Azure/azure-sdk-for-go/sdk/storage/azblob/container" | ||
// ) | ||
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// // Assuming there's a struct managing the processor setup | ||
// // type EventHubProcessor struct { | ||
// // Processor *azeventhubs.Processor | ||
// // } | ||
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// // Updated initialization function using the new SDK components | ||
// func NewEventHubProcessor(ehConn, ehName, storageConn, storageCnt string) (*EventHubProcessor, error) { | ||
// checkpointingProcessor, err := newCheckpointingProcessor(ehConn, ehName, storageConn, storageCnt) | ||
// if err != nil { | ||
// return nil, fmt.Errorf("failed to create checkpointing processor: %w", err) | ||
// } | ||
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// // Start processing events | ||
// return &EventHubProcessor{ | ||
// Processor: checkpointingProcessor, | ||
// }, nil | ||
// } | ||
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// // Assume there's a function to start processing events | ||
// func (e *EventHubProcessor) StartProcessing(ctx context.Context) error { | ||
// // Start the processor | ||
// if err := e.Processor.Run(ctx); err != nil { | ||
// return fmt.Errorf("error running processor: %w", err) | ||
// } | ||
// return nil | ||
// } | ||
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// // Assuming there's a struct managing the processor setup | ||
// type EventHubProcessor struct { | ||
// Processor *azeventhubs.Processor | ||
// } | ||
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// // These are config values the processor factory can use to create processors: | ||
// // | ||
// // (a) EventHubConnectionString | ||
// // (b) EventHubName | ||
// // (c) StorageConnectionString | ||
// // (d) StorageContainerName | ||
// // | ||
// // You always need the EventHub variable values. | ||
// // And you need all 4 of these to checkpoint. | ||
// // | ||
// // I think the config values should be managed in the factory struct. | ||
// /* | ||
// func (pf *processorFactory) CreateProcessor() (*azeventhubs.Processor, error) { | ||
// // Create the consumer client | ||
// consumerClient, err := azeventhubs.NewConsumerClientFromConnectionString(pf.EventHubConnectionString, pf.EventHubName, azeventhubs.DefaultConsumerGroup, nil) | ||
// if err != nil { | ||
// return nil, err | ||
// } | ||
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// // Create the blob container client for the checkpoint store | ||
// blobContainerClient, err := container.NewClientFromConnectionString(pf.StorageConnectionString, pf.StorageContainerName, nil) | ||
// if err != nil { | ||
// return nil, err | ||
// } | ||
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// // Create the checkpoint store using the blob container client | ||
// checkpointStore, err := azeventhubs.NewBlobCheckpointStore(blobContainerClient, nil) | ||
// // checkpointStore, err := azeventhubs.NewBlobCheckpointStore(blobContainerClient, nil) | ||
// // if err != nil { | ||
// // return nil, err | ||
// // } | ||
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// // Create the processor with checkpointing | ||
// processor, err := azeventhubs.NewProcessor(consumerClient, checkpointStore, nil) | ||
// if err != nil { | ||
// return nil, err | ||
// } | ||
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// return processor, nil | ||
// } | ||
// */ | ||
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// // checkpointing processor should be auth aware | ||
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// func newCheckpointingProcessor(eventHubConnectionString, eventHubName, storageConnectionString, storageContainerName string) (*azeventhubs.Processor, error) { | ||
// blobContainerClient, err := container.NewClientFromConnectionString(storageConnectionString, storageContainerName, nil) | ||
// if err != nil { | ||
// return nil, err | ||
// } | ||
// checkpointStore, err := checkpoints.NewBlobStore(blobContainerClient, nil) | ||
// if err != nil { | ||
// return nil, err | ||
// } | ||
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// consumerClient, err := azeventhubs.NewConsumerClientFromConnectionString(eventHubConnectionString, eventHubName, azeventhubs.DefaultConsumerGroup, nil) | ||
// if err != nil { | ||
// return nil, err | ||
// } | ||
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// return azeventhubs.NewProcessor(consumerClient, checkpointStore, nil) | ||
// } | ||
/* | ||
func dispatchPartitionClients(processor *azeventhubs.Processor) { | ||
for { | ||
processorPartitionClient := processor.NextPartitionClient(context.TODO()) | ||
if processorPartitionClient == nil { | ||
break | ||
} | ||
go func() { | ||
if err := processEventsForPartition(processorPartitionClient); err != nil { | ||
panic(err) | ||
} | ||
}() | ||
} | ||
} | ||
func processEventsForPartition(partitionClient *azeventhubs.ProcessorPartitionClient) error { | ||
defer shutdownPartitionResources(partitionClient) | ||
if err := initializePartitionResources(partitionClient.PartitionID()); err != nil { | ||
return err | ||
} | ||
for { | ||
receiveCtx, cancelReceive := context.WithTimeout(context.TODO(), time.Minute) | ||
events, err := partitionClient.ReceiveEvents(receiveCtx, 100, nil) | ||
cancelReceive() | ||
if err != nil && !errors.Is(err, context.DeadlineExceeded) { | ||
return err | ||
} | ||
if len(events) == 0 { | ||
continue | ||
} | ||
if err := processEvents(events, partitionClient); err != nil { | ||
return err | ||
} | ||
if err := partitionClient.UpdateCheckpoint(context.TODO(), events[len(events)-1], nil); err != nil { | ||
return err | ||
} | ||
} | ||
} | ||
func shutdownPartitionResources(partitionClient *azeventhubs.ProcessorPartitionClient) { | ||
if err := partitionClient.Close(context.TODO()); err != nil { | ||
panic(err) | ||
} | ||
} | ||
func initializePartitionResources(partitionID string) error { | ||
fmt.Printf("Initializing resources for partition %s\n", partitionID) | ||
return nil | ||
} | ||
// This is very much like the old processEvents function | ||
func processEvents(events []*azeventhubs.ReceivedEventData, partitionClient *azeventhubs.ProcessorPartitionClient) error { | ||
for _, event := range events { | ||
// fmt.Printf("Processing event: %v\n", event.EventData()) | ||
} | ||
return nil | ||
} | ||
*/ |
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