SharpPulsar 2.15.1

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. 
dotnet add package SharpPulsar --version 2.15.1                

                    
                

            
NuGet\Install-Package SharpPulsar -Version 2.15.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="SharpPulsar" Version="2.15.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
paket add SharpPulsar --version 2.15.1                

                    
                

            
#r "nuget: SharpPulsar, 2.15.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
// Install SharpPulsar as a Cake Addin
#addin nuget:?package=SharpPulsar&version=2.15.1

// Install SharpPulsar as a Cake Tool
#tool nuget:?package=SharpPulsar&version=2.15.1

Build Tests Nuget

SharpPulsar

SharpPulsar is an Apache Pulsar Client built on top Akka.net, which can handle millions of Apache Pulsar Producers/Consumers/Reader/Transaction/Table (in theory).

What Is Akka.NET?

Akka.NET is a toolkit and runtime for building highly concurrent, distributed, and fault tolerant event-driven applications on .NET & Mono that is able to support up to 50 million msg/sec on a single machine, with small memory footprint and ~2.5 million actors(or Apache Pulsar Producers/Consumers) per GB of heap.

What Is Apache Pulsar?

Apache Pulsar is a cloud-native, distributed messaging and streaming platform that is able to support millions of topics while delivering high-throughput and low-latency performance.

Supported features

Client

  • TLS
  • Authentication (token, tls, OAuth2)
  • Multi-Hosts Service URL
  • Proxy
  • SNI Routing
  • Transactions
  • Subscription(Durable, Non-durable)
  • Cluster-level Auto Failover

Producer

  • Exclusive Producer
  • Partitioned Topics
  • Batching
  • Compression (LZ4, ZLIB, ZSTD, SNAPPY)
  • Schema (Primitive, Avro, Json, KeyValue, AutoSchema)
  • User-defined properties
  • Key-based batcher
  • Delayed/Scheduled messages
  • Interceptors
  • Message Router (RoundRobin, ConsistentHashing, Broadcast, Random)
  • End-to-end Encryption
  • Chunking
  • Transactions

Consumer

  • User-defined properties
  • HasMessageAvailable
  • Subscription Type (Exclusive, Failover, Shared, Key_Shared)
  • Subscription Mode (Durable, Non-durable)
  • Interceptors
  • Ack (Ack Individual, Ack Commulative, Batch-Index Ack)
  • Ack Timeout
  • Negative Ack
  • Dead Letter Policy
  • End-to-end Encryption
  • SubscriptionInitialPosition
  • Partitioned Topics
  • Batching
  • Compression (LZ4, ZLIB, ZSTD, SNAPPY)
  • Schema (Primitive, Avro, Json, KeyValue, AutoSchema)
  • Compacted Topics
  • Multiple Topics
  • Regex Consumer
  • Broker Entry Metadata

Reader

  • User-defined properties
  • HasMessageAvailable
  • Schema (Primitive, Avro, Json, KeyValue, AutoSchema)
  • Seek (MessageID, Timestamp)
  • Multiple Topics
  • End-to-end Encryption
  • Interceptors

TableView

  • Compacted Topics
  • Schema (All supported schema types)
  • Register Listener

Extras

  • Pulsar SQL
  • Pulsar Admin REST API
  • Function REST API
  • EventSource(Reader/SQL)
  • OpenTelemetry (ProducerOTelInterceptor, ConsumerOTelInterceptor)

Getting Started

Install the NuGet package SharpPulsar and follow the Tutorials.

//pulsar client settings builder
            var clientConfig = new PulsarClientConfigBuilder()
                .ServiceUrl("pulsar://localhost:6650");

            //pulsar actor system
            var pulsarSystem = PulsarSystem.GetInstance(clientConfig);

            var pulsarClient = pulsarSystem.NewClient();

            var consumer = pulsarClient.NewConsumer(new ConsumerConfigBuilder<sbyte[]>()
                .Topic(myTopic)
                .ForceTopicCreation(true)
                .SubscriptionName("myTopic-sub"));

            var producer = pulsarClient.NewProducer(new ProducerConfigBuilder<sbyte[]>()
                .Topic(myTopic));

            for (var i = 0; i < 10; i++)
            {
                var data = Encoding.UTF8.GetBytes($"tuts-{i}").ToSBytes();
                producer.NewMessage().Value(data).Send();
            }
			Thread.Sleep(TimeSpan.FromSeconds(5));
            for (var i = 0; i < 10; i++)
            {
                var message = (Message<sbyte[]>)consumer.Receive();
                consumer.Acknowledge(message);
                var res = Encoding.UTF8.GetString(message.Data.ToBytes());
                Console.WriteLine($"message '{res}' from topic: {message.TopicName}");
            }

Logical Types

Avro Logical Types are supported. Message object MUST implement ISpecificRecord

    AvroSchema<LogicalMessage> avroSchema = AvroSchema<LogicalMessage>.Of(ISchemaDefinition<LogicalMessage>.Builder().WithPojo(typeof(LogicalMessage)).WithJSR310ConversionEnabled(true).Build());

    public class LogicalMessage : ISpecificRecord
    {
        [LogicalType(LogicalTypeKind.Date)]
        public DateTime CreatedTime { get; set; }
		
        [LogicalType(LogicalTypeKind.TimestampMicrosecond)]
        public DateTime StampMicros { get; set; }

        [LogicalType(LogicalTypeKind.TimestampMillisecond)]
        public DateTime StampMillis { get; set; }
		
	[LogicalType(LogicalTypeKind.TimeMicrosecond)]
        public TimeSpan TimeMicros { get; set; }

        [LogicalType(LogicalTypeKind.TimeMillisecond)]
        public TimeSpan TimeMillis { get; set; }
        
        public AvroDecimal Size { get; set; }
		
        public string DayOfWeek { get; set; }

        [Ignore]
        public Avro.Schema Schema { get; set; }

        public object Get(int fieldPos)
        {
            switch (fieldPos)
            {
                case 0: return CreatedTime; 
	        case 1: return StampMicros;
                case 2: return StampMillis;
	        case 3: return TimeMicros;
                case 4: return TimeMillis;
                case 5: return Size;
                case 6: return DayOfWeek;
                default: throw new AvroRuntimeException("Bad index " + fieldPos + " in Get()");
            };
        }

        public void Put(int fieldPos, object fieldValue)
        {
            switch (fieldPos)
            {
                case 0: CreatedTime = (DateTime)fieldValue; break;
		case 1: StampMicros = (DateTime)fieldValue; break;
                case 2: StampMillis = (DateTime)fieldValue; break;
	        case 3: TimeMicros = (TimeSpan)fieldValue; break;
                case 4: TimeMillis = (TimeSpan)fieldValue; break;
                case 5: Size = (AvroDecimal)fieldValue; break;
                case 6: DayOfWeek = (String)fieldValue; break;
                default: throw new AvroRuntimeException("Bad index " + fieldPos + " in Put()");
            };
        }
    }

KeyValue Schema ALERT!!!!

Because I have become lazy and a lover of "peace of mind":

  • For schema type of KEYVALUESCHEMA: 
    producer.NewMessage().Value<TK, TV>(data).Send();
    OR 
    producer.Send<TK, TV>(data);

TK, TV represents the key and value types of the KEYVALUESCHEMA respectively.

TableView

var topic = $"persistent://public/default/tableview-{DateTime.Now.Ticks}";
var count = 20;
var keys = await PublishMessages(topic, count, false);

var tv = await _client.NewTableViewBuilder(ISchema<string>.Bytes)
.Topic(topic)
.AutoUpdatePartitionsInterval(TimeSpan.FromSeconds(60))
.CreateAsync();
 
 Console.WriteLine($"start tv size: {tv.Size()}");
 tv.ForEachAndListen((k, v) => Console.WriteLine($"{k} -> {Encoding.UTF8.GetString(v)}"));
 await Task.Delay(5000);
 Console.WriteLine($"Current tv size: {tv.Size()}");

 tv.ForEachAndListen((k, v) => Console.WriteLine($"checkpoint {k} -> {Encoding.UTF8.GetString(v)}"));

OpenTelemetry

var exportedItems = new List<Activity>();
using var tracerProvider = Sdk.CreateTracerProviderBuilder()
.AddSource("producer", "consumer")
.SetResourceBuilder(ResourceBuilder.CreateDefault().AddService("inmemory-test"))
.AddInMemoryExporter(exportedItems)
.Build();

 var producerBuilder = new ProducerConfigBuilder<byte[]>()
 .Intercept(new ProducerOTelInterceptor<byte[]>("producer", _client.Log))
 .Topic(topic);

 var consumerBuilder = new ConsumerConfigBuilder<byte[]>()
 .Intercept(new ConsumerOTelInterceptor<byte[]>("consumer", _client.Log))
 .Topic(topic);

Cluster-level Auto Failover

var config = new PulsarClientConfigBuilder();
var builder = AutoClusterFailover.Builder().Primary(serviceUrl)
.Secondary(new List<string> { secondary })
.FailoverDelay(TimeSpan.FromSeconds(failoverDelay))
.SwitchBackDelay(TimeSpan.FromSeconds(switchBackDelay))
.CheckInterval(TimeSpan.FromSeconds(checkInterval));
config.ServiceUrlProvider(new AutoClusterFailover((AutoClusterFailoverBuilder)builder));

[Experimental]Running SharpPulsar Tests in docker container (the issue I have faced is how to create container from within a container)

You can run SharpPulsar tests in docker container. A Dockerfile and docker-compose file is provided at the root folder to help you run these tests in a docker container. docker-compose.yml:

version: "2.4"

services:
  akka-test:
    image: sharp-pulsar-test
    build: 
      context: .
    cpu_count: 1
    mem_limit: 1g
    environment:
      run_count: 2
      # to filter tests, uncomment
      # test_filter: "--filter FullyQualifiedName=SharpPulsar.Test.MessageChunkingTest"
      test_file: Tests/SharpPulsar.Test/SharpPulsar.Test.csproj

Dockerfile:

FROM mcr.microsoft.com/dotnet/sdk:6.0 
ENV test_file="Tests/SharpPulsar.Test/SharpPulsar.Test.csproj"
ENV test_filter=""
ENV run_count=2
RUN mkdir sharppulsar
COPY . ./sharppulsar
RUN ls
WORKDIR /sharppulsar
CMD ["/bin/bash", "-c", "x=1; c=0; while [ $x -le 1 ] && [ $c -le ${run_count} ]; do dotnet test ${test_file} ${test_filter} --framework net6.0 --logger trx; c=$(( $c + 1 )); if [ $? -eq 0 ]; then x=1; else x=0; fi;  done"]

How to:

cd into the root directory and execute docker-compose up run-count is the number of times you want the test repeated. test_filter is used when you need to test a specific test instead of running all the tests in the test suite.

License

This project is licensed under the Apache License Version 2.0 - see the LICENSE file for details.

Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated
2.15.1 221 2/15/2024
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2.0.0-beta.9 207 4/23/2021
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2.0.0-beta.6 200 4/22/2021
2.0.0-beta.5 199 4/15/2021
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1.4.2.1 677 9/3/2020
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1.2.0 772 5/26/2020
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0.7.0 646 4/20/2020
0.6.5 585 4/16/2020
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0.3.0 625 3/13/2020
0.2.0 594 3/11/2020
0.0.1.1 647 3/7/2020
0.0.1 640 3/7/2020
0.0.1-alpha 433 3/8/2020

• [FIX][ServiceUrlProvider] ClientConfigurationData
• [Updated] Nager.PublicSuffix v3.0.0

Full changelog at https://github.com/Sharp-Pulsar/SharpPulsar/blob/refs/tags/2.15.1/CHANGELOG.md