Rename DistributedJob to AtomicJob

docs/DbProviders.md

@@ -22,15 +22,15 @@ var order = new Order(args);
 db.Orders.Add(order);
 await db.SaveChangesAsync();
 
-var job = await distributedJobFactory.CreateJobAsync(new EfCoreSteppingDbContext(db));
+var job = await atomicJobFactory.CreateJobAsync(new EfCoreSteppingDbContext(db));
 
 job.AddStep(new SendOrderCreatedEmailStep(order));
 job.AddStep(new SendOrderCreatedSmsStep(order));
 
 await job.StartAsync(); // it will commit the DB transaction
 ```
 
-Use methods of `IAdvancedDistributedJob`: (it's equivalent to the above)
+Use methods of `IAdvancedAtomicJob`: (it's equivalent to the above)
 
 ```csharp
 var db = serviceProvider.GetRequiredService<MyDbContext>();
@@ -41,7 +41,7 @@ var order = new Order(args);
 db.Orders.Add(order);
 await db.SaveChangesAsync();
 
-var job = await distributedJobFactory.CreateAdvancedJobAsync(new EfCoreSteppingDbContext(db));
+var job = await atomicJobFactory.CreateAdvancedJobAsync(new EfCoreSteppingDbContext(db));
 
 job.AddStep(new SendOrderCreatedEmailStep(order));
 job.AddStep(new SendOrderCreatedSmsStep(order));
@@ -72,15 +72,15 @@ var order = new Order(args);
 var collection = steppingDbContext.Database.GetCollection<Order>("Orders");
 await collection.InsertOneAsync(order);
 
-var job = await distributedJobFactory.CreateJobAsync(steppingDbContext);
+var job = await atomicJobFactory.CreateJobAsync(steppingDbContext);
 
 job.AddStep(new SendOrderCreatedEmailStep(order));
 job.AddStep(new SendOrderCreatedSmsStep(order));
 
 await job.StartAsync(); // it will commit the DB transaction
 ```
 
-Use methods of `IAdvancedDistributedJob`: (it's equivalent to the above)
+Use methods of `IAdvancedAtomicJob`: (it's equivalent to the above)
 
 ```csharp
 var client = new MongoClient(connectionString);
@@ -95,7 +95,7 @@ var order = new Order(args);
 var collection = steppingDbContext.Database.GetCollection<Order>("Orders");
 await collection.InsertOneAsync(order);
 
-var job = await distributedJobFactory.CreateJobAsync(steppingDbContext);
+var job = await atomicJobFactory.CreateJobAsync(steppingDbContext);
 
 job.AddStep(new SendOrderCreatedEmailStep(order));
 job.AddStep(new SendOrderCreatedSmsStep(order));

docs/README.md

@@ -9,9 +9,9 @@ Stepping is a distributed [BASE](https://en.wikipedia.org/wiki/Eventual_consiste
 
 We have provided documentation for the following languages: [English](./README.md), [简体中文](./README.zh-CN.md).
 
-## What are `Job` and `Step` in Stepping?
+## What are `AtomicJob` and `Step`?
 
-`Job` is a distributed transaction unit, and `Step` is a specific task inside a job.
+`AtomicJob` is a distributed atomic job unit, and `Step` is a specific task inside a job.
 
 A job contains one or many steps, and the transaction manager will execute them in order. If step 1 fails, it will be retried until success, and then step 2 starts to execute.
 
@@ -40,7 +40,7 @@ Stepping also supports the "multi-tenant with multi-DB" scenario, meaning it wor
 The transaction manager will eventually complete the added steps:
 
 ```csharp
-var job = await distributedJobFactory.CreateJobAsync();
+var job = await atomicJobFactory.CreateJobAsync();
 
 job.AddStep(new RequestBank1TransferOutStep(args)); // step with args
 job.AddStep<RequestBank2TransferInStep>(); // step without args
@@ -61,7 +61,7 @@ var order = new Order(args);
 db.Orders.Add(order);
 await db.SaveChangesAsync();
 
-var job = await distributedJobFactory.CreateJobAsync(new EfCoreSteppingDbContext(db));
+var job = await atomicJobFactory.CreateJobAsync(new EfCoreSteppingDbContext(db));
 
 job.AddStep(new SendOrderCreatedEmailStep(order));
 job.AddStep(new SendOrderCreatedSmsStep(order));

docs/README.zh-CN.md

@@ -9,9 +9,9 @@ Stepping 是一个基于 [BASE](https://en.wikipedia.org/wiki/Eventual_consisten
 
 我们已为以下语言提供了文档：[English](./README.md)，[简体中文](./README.zh-CN.md)。
 
-## Stepping 中 `Job` 和 `Step` 是什么?
+## `AtomicJob` 和 `Step` 是什么?
 
-`Job` 是一个分布式事务单元，而 `Step` 是 job 中一个特定的任务。
+`AtomicJob` 是一个分布式原子作业单元，而 `Step` 是 job 中一个特定的任务。
 
 一个 job（作业）包含了一个或多个 step（步骤），事务管理器会按顺序执行步骤。如果步骤 1 失败了，它将重试直到成功，然后开始执行步骤 2。
 
@@ -40,7 +40,7 @@ Stepping 也支持“多租户且多数据库”的场景，这意味着无论
 事务管理器会最终完成添加的步骤：
 
 ```csharp
-var job = await distributedJobFactory.CreateJobAsync();
+var job = await atomicJobFactory.CreateJobAsync();
 
 job.AddStep(new RequestBank1TransferOutStep(args)); // 带参数的步骤
 job.AddStep<RequestBank2TransferInStep>(); // 不带参数的步骤
@@ -61,7 +61,7 @@ var order = new Order(args);
 db.Orders.Add(order);
 await db.SaveChangesAsync();
 
-var job = await distributedJobFactory.CreateJobAsync(new EfCoreSteppingDbContext(db));
+var job = await atomicJobFactory.CreateJobAsync(new EfCoreSteppingDbContext(db));
 
 job.AddStep(new SendOrderCreatedEmailStep(order));
 job.AddStep(new SendOrderCreatedSmsStep(order));

src/Stepping.Core/Microsoft/Extensions/DependencyInjection/SteppingServiceCollectionExtensions.cs

@@ -50,11 +50,11 @@ private static IServiceCollection AddSteppingServices(this IServiceCollection se
         services.TryAddTransient<ISteppingJsonSerializer, NewtonsoftSteppingJsonSerializer>();
         services.TryAddTransient<NewtonsoftSteppingJsonSerializer>();
 
-        services.TryAddTransient<IDistributedJobGidGenerator, DistributedJobGidGenerator>();
-        services.TryAddTransient<DistributedJobGidGenerator>();
+        services.TryAddTransient<IAtomicJobGidGenerator, AtomicJobGidGenerator>();
+        services.TryAddTransient<AtomicJobGidGenerator>();
 
-        services.TryAddTransient<IDistributedJobFactory, DistributedJobFactory>();
-        services.TryAddTransient<DistributedJobFactory>();
+        services.TryAddTransient<IAtomicJobFactory, AtomicJobFactory>();
+        services.TryAddTransient<AtomicJobFactory>();
 
         services.TryAddTransient<IStepArgsSerializer, JsonStepArgsSerializer>();
         services.TryAddTransient<JsonStepArgsSerializer>();

src/Stepping.Core/Stepping/Core/Jobs/DistributedJob.cs → src/Stepping.Core/Stepping/Core/Jobs/AtomicJob.cs

@@ -6,7 +6,7 @@
 
 namespace Stepping.Core.Jobs;
 
-public class DistributedJob : IAdvancedDistributedJob
+public class AtomicJob : IAdvancedAtomicJob
 {
     public virtual string Gid { get; }
     public virtual List<IStep> Steps { get; } = new();
@@ -25,7 +25,7 @@ public class DistributedJob : IAdvancedDistributedJob
     /// You should set <see cref="DbContext"/> for eventual consistency
     /// when the current session has DB-write operations in the DB transaction.
     /// </summary>
-    internal DistributedJob(
+    internal AtomicJob(
         string gid,
         ISteppingDbContext? dbContext,
         IServiceProvider serviceProvider)
@@ -44,14 +44,14 @@ internal DistributedJob(
         }
     }
 
-    public virtual IDistributedJob AddStep<TStep>(TStep step) where TStep : IStep
+    public virtual IAtomicJob AddStep<TStep>(TStep step) where TStep : IStep
     {
         Steps.Add(step);
 
         return this;
     }
 
-    public virtual IDistributedJob AddStep<TStep>() where TStep : IStepWithoutArgs
+    public virtual IAtomicJob AddStep<TStep>() where TStep : IStepWithoutArgs
     {
         Steps.Add(StepResolver.Resolve<TStep>());
 

src/Stepping.Core/Stepping/Core/Jobs/AtomicJobFactory.cs

@@ -0,0 +1,32 @@
+using Microsoft.Extensions.DependencyInjection;
+using Stepping.Core.Databases;
+
+namespace Stepping.Core.Jobs;
+
+public class AtomicJobFactory : IAtomicJobFactory
+{
+    protected IServiceProvider ServiceProvider { get; }
+
+    public AtomicJobFactory(IServiceProvider serviceProvider)
+    {
+        ServiceProvider = serviceProvider;
+    }
+
+    public virtual async Task<IAtomicJob> CreateJobAsync(string? gid, ISteppingDbContext? dbContext)
+    {
+        return new AtomicJob(gid ?? await GenerateGidAsync(), dbContext, ServiceProvider);
+    }
+
+    public virtual async Task<IAdvancedAtomicJob> CreateAdvancedJobAsync(string? gid,
+        ISteppingDbContext? dbContext)
+    {
+        return new AtomicJob(gid ?? await GenerateGidAsync(), dbContext, ServiceProvider);
+    }
+
+    protected virtual async Task<string> GenerateGidAsync()
+    {
+        var generator = ServiceProvider.GetRequiredService<IAtomicJobGidGenerator>();
+
+        return await generator.CreateAsync();
+    }
+}

src/Stepping.Core/Stepping/Core/Jobs/AtomicJobFactoryExtensions.cs

@@ -0,0 +1,12 @@
+using Stepping.Core.Databases;
+
+namespace Stepping.Core.Jobs;
+
+public static class AtomicJobFactoryExtensions
+{
+    public static Task<IAtomicJob> CreateJobAsync(this IAtomicJobFactory factory,
+        ISteppingDbContext dbContext) => factory.CreateJobAsync(null, dbContext);
+
+    public static Task<IAdvancedAtomicJob> CreateAdvancedJobAsync(this IAtomicJobFactory factory,
+        ISteppingDbContext dbContext) => factory.CreateAdvancedJobAsync(null, dbContext);
+}

src/Stepping.Core/Stepping/Core/Jobs/DistributedJobGidGenerator.cs → src/Stepping.Core/Stepping/Core/Jobs/AtomicJobGidGenerator.cs

@@ -1,6 +1,6 @@
 namespace Stepping.Core.Jobs;
 
-public class DistributedJobGidGenerator : IDistributedJobGidGenerator
+public class AtomicJobGidGenerator : IAtomicJobGidGenerator
 {
     public Task<string> CreateAsync() => Task.FromResult(Guid.NewGuid().ToString());
 }

src/Stepping.Core/Stepping/Core/Jobs/IAdvancedDistributedJob.cs → src/Stepping.Core/Stepping/Core/Jobs/IAdvancedAtomicJob.cs

@@ -1,6 +1,6 @@
 namespace Stepping.Core.Jobs;
 
-public interface IAdvancedDistributedJob : IDistributedJob
+public interface IAdvancedAtomicJob : IAtomicJob
 {
     /// <summary>
     /// Send "prepare" to TM, insert a barrier record to DB.

src/Stepping.Core/Stepping/Core/Jobs/IDistributedJob.cs → src/Stepping.Core/Stepping/Core/Jobs/IAtomicJob.cs

@@ -4,7 +4,7 @@
 
 namespace Stepping.Core.Jobs;
 
-public interface IDistributedJob
+public interface IAtomicJob
 {
     string Gid { get; }
 
@@ -21,12 +21,12 @@ public interface IDistributedJob
     /// <summary>
     /// Add a step for the job to do in order.
     /// </summary>
-    IDistributedJob AddStep<TStep>(TStep step) where TStep : IStep;
+    IAtomicJob AddStep<TStep>(TStep step) where TStep : IStep;
 
     /// <summary>
     /// Add a step for the job to do in order.
     /// </summary>
-    IDistributedJob AddStep<TStep>() where TStep : IStepWithoutArgs;
+    IAtomicJob AddStep<TStep>() where TStep : IStepWithoutArgs;
 
     /// <summary>
     /// Send "prepare" to TM, insert a barrier record to DB, commit the DB transaction, and send "submit" to TM.

src/Stepping.Core/Stepping/Core/Jobs/IAtomicJobFactory.cs

@@ -0,0 +1,10 @@
+using Stepping.Core.Databases;
+
+namespace Stepping.Core.Jobs;
+
+public interface IAtomicJobFactory
+{
+    Task<IAtomicJob> CreateJobAsync(string? gid = null, ISteppingDbContext? dbContext = null);
+
+    Task<IAdvancedAtomicJob> CreateAdvancedJobAsync(string? gid = null, ISteppingDbContext? dbContext = null);
+}

src/Stepping.Core/Stepping/Core/Jobs/IDistributedJobGidGenerator.cs → src/Stepping.Core/Stepping/Core/Jobs/IAtomicJobGidGenerator.cs

@@ -1,6 +1,6 @@
 namespace Stepping.Core.Jobs;
 
-public interface IDistributedJobGidGenerator
+public interface IAtomicJobGidGenerator
 {
     Task<string> CreateAsync();
 }

src/Stepping.Core/Stepping/Core/TransactionManagers/ITmClient.cs

@@ -4,7 +4,7 @@ namespace Stepping.Core.TransactionManagers;
 
 public interface ITmClient
 {
-    Task PrepareAsync(IDistributedJob job, CancellationToken cancellationToken = default);
+    Task PrepareAsync(IAtomicJob job, CancellationToken cancellationToken = default);
 
-    Task SubmitAsync(IDistributedJob job, CancellationToken cancellationToken = default);
+    Task SubmitAsync(IAtomicJob job, CancellationToken cancellationToken = default);
 }