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Merge branch 'release/0.4.0'

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This commit is contained in:
Menno van Lavieren 2017-10-20 11:28:20 +02:00
commit 5bf0ed03df
49 changed files with 957 additions and 457 deletions
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55
Publish.ps1
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@ -1,55 +0,0 @@
param([switch]$nopush)
function pack
{
param([string]$project)
Write-Host "Packing $($project).csproj" -Foreground Blue
NuGet.exe pack "$($project)\$($project).csproj" -Build -OutputDir publish -Version "$($version.NuGetVersion)" -Properties depversion="$($version.NuGetVersion)"
}
function push
{
param([string]$project)
Write-Host "Pushing $($project).csproj" -Foreground Blue
NuGet.exe push "publish\X2Software.$($project).$($version.NuGetVersion).nupkg" -apikey "$($nugetkey)" -Source https://www.nuget.org/api/v2/package
}
$projects = @(
"Tapeti.Annotations",
"Tapeti",
"Tapeti.DataAnnotations",
"Tapeti.Flow",
"Tapeti.SimpleInjector"
)
New-Item -Path publish -Type directory -Force | Out-Null
$version = GitVersion.exe | Out-String | ConvertFrom-Json
$nugetkey = Get-Content .nuget.apikey
Write-Host "Publishing version $($version.NuGetVersion) using API key $($nugetkey)"-Foreground Cyan
foreach ($project in $projects)
{
pack($project)
}
if ($nopush -eq $false)
{
foreach ($project in $projects)
{
push($project)
}
}
else
{
Write-Host "Skipping push" -Foreground Blue
}

11
README.md
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@ -6,3 +6,14 @@ The documentation for Tapeti is available on Read the Docs:
[Master branch](http://tapeti.readthedocs.io/en/stable/)<br />
[![Documentation Status](https://readthedocs.org/projects/tapeti/badge/?version=stable)](http://tapeti.readthedocs.io/en/stable/?badge=stable)
## Builds
Builds are automatically run using AppVeyor, with the resulting packages being pushed to NuGet.
Latest build
[![Build status](https://ci.appveyor.com/api/projects/status/cyuo0vm7admy0d9x?svg=true)](https://ci.appveyor.com/project/MvRens/tapeti)
Master build
[![Build status](https://ci.appveyor.com/api/projects/status/cyuo0vm7admy0d9x/branch/master?svg=true)](https://ci.appveyor.com/project/MvRens/tapeti/branch/master)

8
Tapeti.Annotations/Tapeti.Annotations.nuspec
View File

@ -3,12 +3,12 @@
<metadata>
<id>X2Software.Tapeti.Annotations</id>
<version>$version$</version>
<title>$title$</title>
<title>Tapeti Annotations</title>
<authors>Mark van Renswoude</authors>
<owners>Mark van Renswoude</owners>
<licenseUrl>https://git.x2software.net/pub/tapeti/raw/master/UNLICENSE</licenseUrl>
<projectUrl>https://git.x2software.net/pub/tapeti</projectUrl>
<iconUrl>https://git.x2software.net/pub/tapeti/raw/master/resources/icons/Tapeti.Annotations.png</iconUrl>
<licenseUrl>https://raw.githubusercontent.com/MvRens/Tapeti/master/UNLICENSE</licenseUrl>
<projectUrl>https://github.com/MvRens/Tapeti</projectUrl>
<iconUrl>https://raw.githubusercontent.com/MvRens/Tapeti/master/resources/icons/Tapeti.Annotations.png</iconUrl>
<requireLicenseAcceptance>false</requireLicenseAcceptance>
<description>Annotations for Tapeti</description>
<copyright></copyright>

10
Tapeti.DataAnnotations/Tapeti.DataAnnotations.nuspec
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@ -3,18 +3,18 @@
<metadata>
<id>X2Software.Tapeti.DataAnnotations</id>
<version>$version$</version>
<title>$title$</title>
<title>Tapeti DataAnnotations</title>
<authors>Mark van Renswoude</authors>
<owners>Mark van Renswoude</owners>
<licenseUrl>https://git.x2software.net/pub/tapeti/raw/master/UNLICENSE</licenseUrl>
<projectUrl>https://git.x2software.net/pub/tapeti</projectUrl>
<iconUrl>https://git.x2software.net/pub/tapeti/raw/master/resources/icons/Tapeti.DataAnnotations.png</iconUrl>
<licenseUrl>https://raw.githubusercontent.com/MvRens/Tapeti/master/UNLICENSE</licenseUrl>
<projectUrl>https://github.com/MvRens/Tapeti</projectUrl>
<iconUrl>https://raw.githubusercontent.com/MvRens/Tapeti/master/resources/icons/Tapeti.DataAnnotations.png</iconUrl>
<requireLicenseAcceptance>false</requireLicenseAcceptance>
<description>DataAnnotations validation extension for Tapeti</description>
<copyright></copyright>
<tags>rabbitmq tapeti dataannotations</tags>
<dependencies>
<dependency id="X2Software.Tapeti" version="[$depversion$]" />
<dependency id="X2Software.Tapeti" version="[$version$]" />
</dependencies>
</metadata>
</package>

2
Tapeti.Flow.SQL/ConfigExtensions.cs
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@ -30,7 +30,7 @@ namespace Tapeti.Flow.SQL
public void RegisterDefaults(IDependencyContainer container)
{
container.RegisterDefault<IFlowRepository<Default.FlowState>>(() => new SqlConnectionFlowRepository<Default.FlowState>(connectionString, serviceId, schema));
container.RegisterDefault<IFlowRepository>(() => new SqlConnectionFlowRepository(connectionString, serviceId, schema));
}

8
Tapeti.Flow.SQL/SqlConnectionFlowRepository.cs
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@ -24,7 +24,7 @@ namespace Tapeti.Flow.SQL
);
go;
*/
public class SqlConnectionFlowRepository<T> : IFlowRepository<T>
public class SqlConnectionFlowRepository : IFlowRepository
{
private readonly string connectionString;
private readonly int serviceId;
@ -39,7 +39,7 @@ namespace Tapeti.Flow.SQL
}
public async Task<List<KeyValuePair<Guid, T>>> GetStates()
public async Task<List<KeyValuePair<Guid, T>>> GetStates<T>()
{
using (var connection = await GetConnection())
{
@ -69,14 +69,14 @@ namespace Tapeti.Flow.SQL
}
public Task CreateState(Guid flowID, T state, DateTime timestamp)
public Task CreateState<T>(Guid flowID, T state, DateTime timestamp)
{
var stateJason = JsonConvert.SerializeObject(state);
throw new NotImplementedException();
}
public Task UpdateState(Guid flowID, T state)
public Task UpdateState<T>(Guid flowID, T state)
{
throw new NotImplementedException();
}

12
Tapeti.Flow.SQL/Tapeti.Flow.SQL.nuspec
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@ -3,19 +3,19 @@
<metadata>
<id>X2Software.Tapeti.Flow.SQL</id>
<version>$version$</version>
<title>$title$</title>
<title>Tapeti Flow SQL</title>
<authors>Mark van Renswoude</authors>
<owners>Mark van Renswoude</owners>
<licenseUrl>https://git.x2software.net/pub/tapeti/raw/master/UNLICENSE</licenseUrl>
<projectUrl>https://git.x2software.net/pub/tapeti</projectUrl>
<iconUrl>https://git.x2software.net/pub/tapeti/raw/master/resources/icons/Tapeti.Flow.SQL.png</iconUrl>
<licenseUrl>https://raw.githubusercontent.com/MvRens/Tapeti/master/UNLICENSE</licenseUrl>
<projectUrl>https://github.com/MvRens/Tapeti</projectUrl>
<iconUrl>https://raw.githubusercontent.com/MvRens/Tapeti/master/resources/icons/Tapeti.Flow.SQL.png</iconUrl>
<requireLicenseAcceptance>false</requireLicenseAcceptance>
<description>SQL backing repository for the Tapeti Flow package</description>
<copyright></copyright>
<tags>rabbitmq tapeti sql</tags>
<dependencies>
<dependency id="X2Software.Tapeti" version="[$depversion$]" />
<dependency id="X2Software.Tapeti.Flow" version="[$depversion$]" />
<dependency id="X2Software.Tapeti" version="[$version$]" />
<dependency id="X2Software.Tapeti.Flow" version="[$version$]" />
</dependencies>
</metadata>
</package>

2
Tapeti.Flow/ConfigExtensions.cs
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@ -2,7 +2,7 @@
{
public static class ConfigExtensions
{
public static TapetiConfig WithFlow(this TapetiConfig config, IFlowRepository<Default.FlowState> flowRepository = null)
public static TapetiConfig WithFlow(this TapetiConfig config, IFlowRepository flowRepository = null)
{
config.Use(new FlowMiddleware(flowRepository));
return config;

7
Tapeti.Flow/Default/DelegateYieldPoint.cs
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@ -3,16 +3,13 @@ using System.Threading.Tasks;
namespace Tapeti.Flow.Default
{
internal class DelegateYieldPoint : IExecutableYieldPoint
internal class DelegateYieldPoint : IYieldPoint
{
public bool StoreState { get; }
private readonly Func<FlowContext, Task> onExecute;
public DelegateYieldPoint(bool storeState, Func<FlowContext, Task> onExecute)
public DelegateYieldPoint(Func<FlowContext, Task> onExecute)
{
StoreState = storeState;
this.onExecute = onExecute;
}

2
Tapeti.Flow/Default/FlowBindingMiddleware.cs
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@ -87,7 +87,7 @@ namespace Tapeti.Flow.Default
private static Task HandleParallelResponse(IMessageContext context)
{
var flowHandler = context.DependencyResolver.Resolve<IFlowHandler>();
return flowHandler.Execute(context, new StateYieldPoint(true));
return flowHandler.Execute(context, new DelegateYieldPoint((a) => Task.CompletedTask));
}

30
Tapeti.Flow/Default/FlowCleanupMiddleware.cs Normal file
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@ -0,0 +1,30 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tapeti.Config;
namespace Tapeti.Flow.Default
{
public class FlowCleanupMiddleware : ICleanupMiddleware
{
public async Task Handle(IMessageContext context, HandlingResult handlingResult)
{
object flowContextObj;
if (!context.Items.TryGetValue(ContextItems.FlowContext, out flowContextObj))
return;
var flowContext = (FlowContext)flowContextObj;
if (flowContext?.FlowStateLock != null)
{
if (handlingResult.ConsumeResponse == ConsumeResponse.Nack
|| handlingResult.MessageAction == MessageAction.ErrorLog)
{
await flowContext.FlowStateLock.DeleteFlowState();
}
flowContext.FlowStateLock.Dispose();
}
}
}
}

22
Tapeti.Flow/Default/FlowContext.cs
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@ -13,13 +13,13 @@ namespace Tapeti.Flow.Default
public Guid ContinuationID { get; set; }
public ContinuationMetadata ContinuationMetadata { get; set; }
private bool stored;
private bool storeCalled;
private bool deleteCalled;
public async Task EnsureStored()
public async Task Store()
{
if (stored)
return;
storeCalled = true;
if (MessageContext == null) throw new ArgumentNullException(nameof(MessageContext));
if (FlowState == null) throw new ArgumentNullException(nameof(FlowState));
@ -27,8 +27,20 @@ namespace Tapeti.Flow.Default
FlowState.Data = Newtonsoft.Json.JsonConvert.SerializeObject(MessageContext.Controller);
await FlowStateLock.StoreFlowState(FlowState);
}
stored = true;
public async Task Delete()
{
deleteCalled = true;
if (FlowStateLock != null)
await FlowStateLock.DeleteFlowState();
}
public void EnsureStoreOrDeleteIsCalled()
{
if (!storeCalled && !deleteCalled)
throw new InvalidProgramException("Neither Store nor Delete are called for the state of the current flow. FlowID = " + FlowStateLock?.FlowID);
}
public void Dispose()

2
Tapeti.Flow/Default/FlowMessageFilterMiddleware.cs
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@ -39,8 +39,6 @@ namespace Tapeti.Flow.Default
return null;
var flowStateLock = await flowStore.LockFlowState(flowID.Value);
if (flowStateLock == null)
return null;
var flowState = await flowStateLock.GetFlowState();
if (flowState == null)

94
Tapeti.Flow/Default/FlowProvider.cs
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@ -26,13 +26,13 @@ namespace Tapeti.Flow.Default
public IYieldPoint YieldWithRequest<TRequest, TResponse>(TRequest message, Func<TResponse, Task<IYieldPoint>> responseHandler)
{
var responseHandlerInfo = GetResponseHandlerInfo(config, message, responseHandler);
return new DelegateYieldPoint(true, context => SendRequest(context, message, responseHandlerInfo));
return new DelegateYieldPoint(context => SendRequest(context, message, responseHandlerInfo));
}
public IYieldPoint YieldWithRequestSync<TRequest, TResponse>(TRequest message, Func<TResponse, IYieldPoint> responseHandler)
{
var responseHandlerInfo = GetResponseHandlerInfo(config, message, responseHandler);
return new DelegateYieldPoint(true, context => SendRequest(context, message, responseHandlerInfo));
return new DelegateYieldPoint(context => SendRequest(context, message, responseHandlerInfo));
}
public IFlowParallelRequestBuilder YieldWithParallelRequest()
@ -42,18 +42,23 @@ namespace Tapeti.Flow.Default
public IYieldPoint EndWithResponse<TResponse>(TResponse message)
{
return new DelegateYieldPoint(false, context => SendResponse(context, message));
return new DelegateYieldPoint(context => SendResponse(context, message));
}
public IYieldPoint End()
{
return new DelegateYieldPoint(false, EndFlow);
return new DelegateYieldPoint(EndFlow);
}
private async Task SendRequest(FlowContext context, object message, ResponseHandlerInfo responseHandlerInfo,
string convergeMethodName = null, bool convergeMethodTaskSync = false)
{
if (context.FlowState == null)
{
await CreateNewFlowState(context);
}
var continuationID = Guid.NewGuid();
context.FlowState.Continuations.Add(continuationID,
@ -70,14 +75,18 @@ namespace Tapeti.Flow.Default
ReplyTo = responseHandlerInfo.ReplyToQueue
};
await context.EnsureStored();
await context.Store();
await publisher.Publish(message, properties);
}
private async Task SendResponse(FlowContext context, object message)
{
var reply = context.FlowState.Metadata.Reply;
var reply = context.FlowState == null
? GetReply(context.MessageContext)
: context.FlowState.Metadata.Reply;
if (reply == null)
throw new YieldPointException("No response is required");
@ -92,19 +101,21 @@ namespace Tapeti.Flow.Default
properties.CorrelationId = reply.CorrelationId;
// TODO disallow if replyto is not specified?
if (context.FlowState.Metadata.Reply.ReplyTo != null)
if (reply.ReplyTo != null)
await publisher.PublishDirect(message, reply.ReplyTo, properties);
else
await publisher.Publish(message, properties);
await context.Delete();
}
private static Task EndFlow(FlowContext context)
private static async Task EndFlow(FlowContext context)
{
if (context.FlowState.Metadata.Reply != null)
throw new YieldPointException($"Flow must end with a response message of type {context.FlowState.Metadata.Reply.ResponseTypeName}");
await context.Delete();
return Task.CompletedTask;
if (context.FlowState != null && context.FlowState.Metadata.Reply != null)
throw new YieldPointException($"Flow must end with a response message of type {context.FlowState.Metadata.Reply.ResponseTypeName}");
}
@ -147,11 +158,31 @@ namespace Tapeti.Flow.Default
};
}
private async Task CreateNewFlowState(FlowContext flowContext)
{
var flowStore = flowContext.MessageContext.DependencyResolver.Resolve<IFlowStore>();
var flowID = Guid.NewGuid();
flowContext.FlowStateLock = await flowStore.LockFlowState(flowID);
if (flowContext.FlowStateLock == null)
throw new InvalidOperationException("Unable to lock a new flow");
flowContext.FlowState = new FlowState
{
Metadata = new FlowMetadata
{
Reply = GetReply(flowContext.MessageContext)
}
};
}
public async Task Execute(IMessageContext context, IYieldPoint yieldPoint)
{
var executableYieldPoint = yieldPoint as IExecutableYieldPoint;
var storeState = executableYieldPoint?.StoreState ?? false;
var executableYieldPoint = yieldPoint as DelegateYieldPoint;
if (executableYieldPoint == null)
throw new YieldPointException($"Yield point is required in controller {context.Controller.GetType().Name} for method {context.Binding.Method.Name}");
FlowContext flowContext;
object flowContextItem;
@ -160,27 +191,10 @@ namespace Tapeti.Flow.Default
{
flowContext = new FlowContext
{
MessageContext = context,
FlowState = new FlowState()
MessageContext = context
};
if (storeState)
{
// Initiate the flow
var flowStore = context.DependencyResolver.Resolve<IFlowStore>();
var flowID = Guid.NewGuid();
flowContext.FlowStateLock = await flowStore.LockFlowState(flowID);
if (flowContext.FlowStateLock == null)
throw new InvalidOperationException("Unable to lock a new flow");
flowContext.FlowState = await flowContext.FlowStateLock.GetFlowState();
if (flowContext.FlowState == null)
throw new InvalidOperationException("Unable to get state for new flow");
flowContext.FlowState.Metadata.Reply = GetReply(context);
}
context.Items.Add(ContextItems.FlowContext, flowContext);
}
else
flowContext = (FlowContext)flowContextItem;
@ -193,19 +207,17 @@ namespace Tapeti.Flow.Default
}
catch (YieldPointException e)
{
var controllerName = flowContext.MessageContext.Controller.GetType().FullName;
var methodName = flowContext.MessageContext.Binding.Method.Name;
throw new YieldPointException($"{e.Message} in controller {controllerName}, method {methodName}", e);
// Useful for debugging
e.Data["Tapeti.Controller.Name"] = context.Controller.GetType().FullName;
e.Data["Tapeti.Controller.Method"] = context.Binding.Method.Name;
throw;
}
if (storeState)
await flowContext.EnsureStored();
else if (flowContext.FlowStateLock != null)
await flowContext.FlowStateLock.DeleteFlowState();
flowContext.EnsureStoreOrDeleteIsCalled();
}
private class ParallelRequestBuilder : IFlowParallelRequestBuilder
{
public delegate Task SendRequestFunc(FlowContext context,
@ -275,7 +287,7 @@ namespace Tapeti.Flow.Default
if (convergeMethod?.Method == null)
throw new ArgumentNullException(nameof(convergeMethod));
return new DelegateYieldPoint(true, context =>
return new DelegateYieldPoint(context =>
{
if (convergeMethod.Method.DeclaringType != context.MessageContext.Controller.GetType())
throw new YieldPointException("Converge method must be in the same controller class");

62
Tapeti.Flow/Default/FlowStarter.cs
View File

@ -10,30 +10,42 @@ namespace Tapeti.Flow.Default
public class FlowStarter : IFlowStarter
{
private readonly IConfig config;
private readonly ILogger logger;
public FlowStarter(IConfig config)
public FlowStarter(IConfig config, ILogger logger)
{
this.config = config;
this.logger = logger;
}
public Task Start<TController>(Expression<Func<TController, Func<IYieldPoint>>> methodSelector) where TController : class
{
return CallControllerMethod<TController>(GetExpressionMethod(methodSelector), value => Task.FromResult((IYieldPoint)value));
return CallControllerMethod<TController>(GetExpressionMethod(methodSelector), value => Task.FromResult((IYieldPoint)value), new object[] { });
}
public Task Start<TController>(Expression<Func<TController, Func<Task<IYieldPoint>>>> methodSelector) where TController : class
{
return CallControllerMethod<TController>(GetExpressionMethod(methodSelector), value => (Task<IYieldPoint>)value);
return CallControllerMethod<TController>(GetExpressionMethod(methodSelector), value => (Task<IYieldPoint>)value, new object[] {});
}
public Task Start<TController, TParameter>(Expression<Func<TController, Func<TParameter, IYieldPoint>>> methodSelector, TParameter parameter) where TController : class
{
return CallControllerMethod<TController>(GetExpressionMethod(methodSelector), value => Task.FromResult((IYieldPoint)value), new object[] {parameter});
}
public Task Start<TController, TParameter>(Expression<Func<TController, Func<TParameter, Task<IYieldPoint>>>> methodSelector, TParameter parameter) where TController : class
{
return CallControllerMethod<TController>(GetExpressionMethod(methodSelector), value => (Task<IYieldPoint>)value, new object[] {parameter});
}
private async Task CallControllerMethod<TController>(MethodInfo method, Func<object, Task<IYieldPoint>> getYieldPointResult) where TController : class
private async Task CallControllerMethod<TController>(MethodInfo method, Func<object, Task<IYieldPoint>> getYieldPointResult, object[] parameters) where TController : class
{
var controller = config.DependencyResolver.Resolve<TController>();
var yieldPoint = await getYieldPointResult(method.Invoke(controller, new object[] {}));
var yieldPoint = await getYieldPointResult(method.Invoke(controller, parameters));
var context = new MessageContext
{
@ -42,7 +54,35 @@ namespace Tapeti.Flow.Default
};
var flowHandler = config.DependencyResolver.Resolve<IFlowHandler>();
HandlingResultBuilder handlingResult = new HandlingResultBuilder
{
ConsumeResponse = ConsumeResponse.Nack,
};
try
{
await flowHandler.Execute(context, yieldPoint);
handlingResult.ConsumeResponse = ConsumeResponse.Ack;
}
finally
{
await RunCleanup(context, handlingResult.ToHandlingResult());
}
}
private async Task RunCleanup(MessageContext context, HandlingResult handlingResult)
{
foreach (var handler in config.CleanupMiddleware)
{
try
{
await handler.Handle(context, handlingResult);
}
catch (Exception eCleanup)
{
logger.HandlerException(eCleanup);
}
}
}
@ -57,5 +97,17 @@ namespace Tapeti.Flow.Default
return method;
}
private static MethodInfo GetExpressionMethod<TController, TResult, TParameter>(Expression<Func<TController, Func<TParameter, TResult>>> methodSelector)
{
var callExpression = (methodSelector.Body as UnaryExpression)?.Operand as MethodCallExpression;
var targetMethodExpression = callExpression?.Object as ConstantExpression;
var method = targetMethodExpression?.Value as MethodInfo;
if (method == null)
throw new ArgumentException("Unable to determine the starting method", nameof(methodSelector));
return method;
}
}
}

17
Tapeti.Flow/Default/FlowState.cs
View File

@ -25,20 +25,13 @@ namespace Tapeti.Flow.Default
}
public void Assign(FlowState value)
{
Metadata = value.Metadata.Clone();
Data = value.Data;
Continuations = value.Continuations.ToDictionary(kv => kv.Key, kv => kv.Value.Clone());
}
public FlowState Clone()
{
var result = new FlowState();
result.Assign(this);
return result;
return new FlowState {
metadata = metadata.Clone(),
Data = Data,
continuations = continuations?.ToDictionary(kv => kv.Key, kv => kv.Value.Clone())
};
}
}

136
Tapeti.Flow/Default/FlowStore.cs
View File

@ -5,18 +5,21 @@ using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Tapeti.Flow.FlowHelpers;
namespace Tapeti.Flow.Default
{
public class FlowStore : IFlowStore
{
private static readonly ConcurrentDictionary<Guid, FlowState> FlowStates = new ConcurrentDictionary<Guid, FlowState>();
private static readonly ConcurrentDictionary<Guid, Guid> ContinuationLookup = new ConcurrentDictionary<Guid, Guid>();
private readonly ConcurrentDictionary<Guid, FlowState> FlowStates = new ConcurrentDictionary<Guid, FlowState>();
private readonly ConcurrentDictionary<Guid, Guid> ContinuationLookup = new ConcurrentDictionary<Guid, Guid>();
private readonly LockCollection<Guid> Locks = new LockCollection<Guid>(EqualityComparer<Guid>.Default);
private readonly IFlowRepository<FlowState> repository;
private readonly IFlowRepository repository;
private volatile bool InUse = false;
public FlowStore(IFlowRepository<FlowState> repository)
public FlowStore(IFlowRepository repository)
{
this.repository = repository;
}
@ -24,10 +27,15 @@ namespace Tapeti.Flow.Default
public async Task Load()
{
if (InUse)
throw new InvalidOperationException("Can only load the saved state once.");
InUse = true;
FlowStates.Clear();
ContinuationLookup.Clear();
foreach (var flowStateRecord in await repository.GetStates())
foreach (var flowStateRecord in await repository.GetStates<FlowState>())
{
FlowStates.TryAdd(flowStateRecord.Key, flowStateRecord.Value);
@ -46,97 +54,76 @@ namespace Tapeti.Flow.Default
public async Task<IFlowStateLock> LockFlowState(Guid flowID)
{
var isNew = false;
var flowState = FlowStates.GetOrAdd(flowID, id =>
{
isNew = true;
return new FlowState();
});
InUse = true;
var result = new FlowStateLock(this, flowState, flowID, isNew);
await result.Lock();
return result;
var flowStatelock = new FlowStateLock(this, flowID, await Locks.GetLock(flowID));
return flowStatelock;
}
private class FlowStateLock : IFlowStateLock
{
private readonly SemaphoreSlim semaphore = new SemaphoreSlim(1);
private readonly FlowStore owner;
private readonly FlowState flowState;
private readonly Guid flowID;
private bool isNew;
private bool isDisposed;
private volatile IDisposable flowLock;
private FlowState flowState;
public FlowStateLock(FlowStore owner, FlowState flowState, Guid flowID, bool isNew)
public FlowStateLock(FlowStore owner, Guid flowID, IDisposable flowLock)
{
this.owner = owner;
this.flowState = flowState;
this.flowID = flowID;
this.isNew = isNew;
this.flowLock = flowLock;
owner.FlowStates.TryGetValue(flowID, out flowState);
}
public Task Lock()
{
return semaphore.WaitAsync();
}
public void Dispose()
{
lock (flowState)
{
if (!isDisposed)
{
semaphore.Release();
semaphore.Dispose();
}
isDisposed = true;
}
var l = flowLock;
flowLock = null;
l?.Dispose();
}
public Guid FlowID => flowID;
public Task<FlowState> GetFlowState()
{
lock (flowState)
{
if (isDisposed)
if (flowLock == null)
throw new ObjectDisposedException("FlowStateLock");
return Task.FromResult(flowState.Clone());
}
return Task.FromResult(flowState?.Clone());
}
public async Task StoreFlowState(FlowState newFlowState)
{
lock (flowState)
{
if (isDisposed)
if (flowLock == null)
throw new ObjectDisposedException("FlowStateLock");
// Ensure no one has a direct reference to the protected state in the dictionary
newFlowState = newFlowState.Clone();
// Update the lookup dictionary for the ContinuationIDs
if (flowState != null)
{
foreach (var removedContinuation in flowState.Continuations.Keys.Where(k => !newFlowState.Continuations.ContainsKey(k)))
{
Guid removedValue;
ContinuationLookup.TryRemove(removedContinuation, out removedValue);
owner.ContinuationLookup.TryRemove(removedContinuation, out removedValue);
}
}
foreach (var addedContinuation in newFlowState.Continuations.Where(c => !flowState.Continuations.ContainsKey(c.Key)))
foreach (var addedContinuation in newFlowState.Continuations.Where(c => flowState == null || !flowState.Continuations.ContainsKey(c.Key)))
{
ContinuationLookup.TryAdd(addedContinuation.Key, flowID);
owner.ContinuationLookup.TryAdd(addedContinuation.Key, flowID);
}
flowState.Assign(newFlowState);
}
var isNew = flowState == null;
flowState = newFlowState;
owner.FlowStates[flowID] = newFlowState;
// Storing the flowstate in the underlying repository
if (isNew)
{
isNew = false;
var now = DateTime.UtcNow;
await owner.repository.CreateState(flowID, flowState, now);
}
@ -148,50 +135,27 @@ namespace Tapeti.Flow.Default
public async Task DeleteFlowState()
{
lock (flowState)
{
if (isDisposed)
if (flowLock == null)
throw new ObjectDisposedException("FlowStateLock");
if (flowState != null)
{
foreach (var removedContinuation in flowState.Continuations.Keys)
{
Guid removedValue;
ContinuationLookup.TryRemove(removedContinuation, out removedValue);
owner.ContinuationLookup.TryRemove(removedContinuation, out removedValue);
}
FlowState removedFlow;
FlowStates.TryRemove(flowID, out removedFlow);
}
owner.FlowStates.TryRemove(flowID, out removedFlow);
if (!isNew)
if (flowState != null)
{
flowState = null;
await owner.repository.DeleteState(flowID);
}
}
private static FlowStateRecord ToFlowStateRecord(Guid flowID, FlowState flowState)
{
return new FlowStateRecord
{
FlowID = flowID,
Metadata = JsonConvert.SerializeObject(flowState.Metadata),
Data = flowState.Data,
ContinuationMetadata = flowState.Continuations.ToDictionary(
kv => kv.Key,
kv => JsonConvert.SerializeObject(kv.Value))
};
}
private static FlowState ToFlowState(FlowStateRecord flowStateRecord)
{
return new FlowState
{
Metadata = JsonConvert.DeserializeObject<FlowMetadata>(flowStateRecord.Metadata),
Data = flowStateRecord.Data,
Continuations = flowStateRecord.ContinuationMetadata.ToDictionary(
kv => kv.Key,
kv => JsonConvert.DeserializeObject<ContinuationMetadata>(kv.Value))
};
}
}
}

10
Tapeti.Flow/Default/IExecutableYieldPoint.cs
View File

@ -1,10 +0,0 @@
using System.Threading.Tasks;
namespace Tapeti.Flow.Default
{
internal interface IExecutableYieldPoint : IYieldPoint
{
bool StoreState { get; }
Task Execute(FlowContext context);
}
}

8
Tapeti.Flow/Default/NonPersistentFlowRepository.cs
View File

@ -5,19 +5,19 @@ using System.Threading.Tasks;
namespace Tapeti.Flow.Default
{
public class NonPersistentFlowRepository<T> : IFlowRepository<T>
public class NonPersistentFlowRepository : IFlowRepository
{
Task<List<KeyValuePair<Guid, T>>> IFlowRepository<T>.GetStates()
Task<List<KeyValuePair<Guid, T>>> IFlowRepository.GetStates<T>()
{
return Task.FromResult(new List<KeyValuePair<Guid, T>>());
}
public Task CreateState(Guid flowID, T state, DateTime timestamp)
public Task CreateState<T>(Guid flowID, T state, DateTime timestamp)
{
return Task.CompletedTask;
}
public Task UpdateState(Guid flowID, T state)
public Task UpdateState<T>(Guid flowID, T state)
{
return Task.CompletedTask;
}

22
Tapeti.Flow/Default/StateYieldPoint.cs
View File

@ -1,22 +0,0 @@
using System.Threading.Tasks;
namespace Tapeti.Flow.Default
{
internal class StateYieldPoint : IExecutableYieldPoint
{
public bool StoreState { get; }
public StateYieldPoint(bool storeState)
{
StoreState = storeState;
}
public async Task Execute(FlowContext context)
{
if (StoreState)
await context.EnsureStored();
}
}
}

110
Tapeti.Flow/FlowHelpers/LockCollection.cs Normal file
View File

@ -0,0 +1,110 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Tapeti.Flow.FlowHelpers
{
public class LockCollection<T>
{
private readonly Dictionary<T, LockItem> locks;
public LockCollection(IEqualityComparer<T> comparer)
{
locks = new Dictionary<T, LockItem>(comparer);
}
public Task<IDisposable> GetLock(T key)
{
LockItem nextLi = new LockItem(locks, key);
try
{
bool continueImmediately = false;
lock (locks)
{
LockItem li;
if (!locks.TryGetValue(key, out li))
{
locks.Add(key, nextLi);
continueImmediately = true;
}
else
{
while (li.Next != null)
li = li.Next;
li.Next = nextLi;
}
}
if (continueImmediately)
nextLi.Continue();
}
catch (Exception e)
{
nextLi.Error(e);
}
return nextLi.GetTask();
}
private class LockItem : IDisposable
{
internal volatile LockItem Next;
private readonly Dictionary<T, LockItem> locks;
private readonly TaskCompletionSource<IDisposable> tcs = new TaskCompletionSource<IDisposable>(TaskCreationOptions.RunContinuationsAsynchronously);
private readonly T key;
public LockItem(Dictionary<T, LockItem> locks, T key)
{
this.locks = locks;
this.key = key;
}
internal void Continue()
{
tcs.TrySetResult(this);
}
internal void Error(Exception e)
{
tcs.SetException(e);
}
internal Task<IDisposable> GetTask()
{
return tcs.Task;
}
public void Dispose()
{
lock (locks)
{
LockItem li;
if (!locks.TryGetValue(key, out li))
return;
if (li != this)
{
// Something is wrong (comparer is not stable?), but we cannot loose the completions sources
while (li.Next != null)
li = li.Next;
li.Next = Next;
return;
}
if (Next == null)
{
locks.Remove(key);
return;
}
locks[key] = Next;
}
Next.Continue();
}
}
}
}

11
Tapeti.Flow/FlowMiddleware.cs
View File

@ -6,9 +6,9 @@ namespace Tapeti.Flow
{
public class FlowMiddleware : ITapetiExtension
{
private IFlowRepository<Default.FlowState> flowRepository;
private IFlowRepository flowRepository;
public FlowMiddleware(IFlowRepository<Default.FlowState> flowRepository)
public FlowMiddleware(IFlowRepository flowRepository)
{
this.flowRepository = flowRepository;
}
@ -18,13 +18,14 @@ namespace Tapeti.Flow
container.RegisterDefault<IFlowProvider, FlowProvider>();
container.RegisterDefault<IFlowStarter, FlowStarter>();
container.RegisterDefault<IFlowHandler, FlowProvider>();
container.RegisterDefault<IFlowRepository<FlowState>>(() => flowRepository ?? new NonPersistentFlowRepository<Default.FlowState>());
container.RegisterDefault<IFlowStore, FlowStore>();
container.RegisterDefaultSingleton<IFlowRepository>(() => flowRepository ?? new NonPersistentFlowRepository());
container.RegisterDefaultSingleton<IFlowStore, FlowStore>();
}
public IEnumerable<object> GetMiddleware(IDependencyResolver dependencyResolver)
{
return new[] { new FlowBindingMiddleware() };
yield return new FlowBindingMiddleware();
yield return new FlowCleanupMiddleware();
}
}
}

2
Tapeti.Flow/IFlowProvider.cs
View File

@ -27,6 +27,8 @@ namespace Tapeti.Flow
{
Task Start<TController>(Expression<Func<TController, Func<IYieldPoint>>> methodSelector) where TController : class;
Task Start<TController>(Expression<Func<TController, Func<Task<IYieldPoint>>>> methodSelector) where TController : class;
Task Start<TController, TParameter>(Expression<Func<TController, Func<TParameter, IYieldPoint>>> methodSelector, TParameter parameter) where TController : class;
Task Start<TController, TParameter>(Expression<Func<TController, Func<TParameter, Task<IYieldPoint>>>> methodSelector, TParameter parameter) where TController : class;
}
/// <summary>

8
Tapeti.Flow/IFlowRepository.cs
View File

@ -5,11 +5,11 @@ using System.Threading.Tasks;
namespace Tapeti.Flow
{
public interface IFlowRepository<T>
public interface IFlowRepository
{
Task<List<KeyValuePair<Guid, T>>> GetStates();
Task CreateState(Guid flowID, T state, DateTime timestamp);
Task UpdateState(Guid flowID, T state);
Task<List<KeyValuePair<Guid, T>>> GetStates<T>();
Task CreateState<T>(Guid flowID, T state, DateTime timestamp);
Task UpdateState<T>(Guid flowID, T state);
Task DeleteState(Guid flowID);
}

4
Tapeti.Flow/Tapeti.Flow.csproj
View File

@ -54,17 +54,17 @@
<Compile Include="Annotations\ContinuationAttribute.cs" />
<Compile Include="Annotations\StartAttribute.cs" />
<Compile Include="ContextItems.cs" />
<Compile Include="Default\FlowCleanupMiddleware.cs" />
<Compile Include="Default\FlowMessageFilterMiddleware.cs" />
<Compile Include="Default\FlowBindingMiddleware.cs" />
<Compile Include="Default\FlowContext.cs" />
<Compile Include="Default\FlowMessageMiddleware.cs" />
<Compile Include="Default\FlowStarter.cs" />
<Compile Include="Default\FlowState.cs" />
<Compile Include="Default\IExecutableYieldPoint.cs" />
<Compile Include="Default\NonPersistentFlowRepository.cs" />
<Compile Include="Default\DelegateYieldPoint.cs" />
<Compile Include="ConfigExtensions.cs" />
<Compile Include="Default\StateYieldPoint.cs" />
<Compile Include="FlowHelpers\LockCollection.cs" />
<Compile Include="FlowHelpers\MethodSerializer.cs" />
<Compile Include="FlowMiddleware.cs" />
<Compile Include="Default\FlowStore.cs" />

12
Tapeti.Flow/Tapeti.Flow.nuspec
View File

@ -3,19 +3,19 @@
<metadata>
<id>X2Software.Tapeti.Flow</id>
<version>$version$</version>
<title>$title$</title>
<title>Tapeti Flow</title>
<authors>Menno van Lavieren, Mark van Renswoude</authors>
<owners>Mark van Renswoude</owners>
<licenseUrl>https://git.x2software.net/pub/tapeti/raw/master/UNLICENSE</licenseUrl>
<projectUrl>https://git.x2software.net/pub/tapeti</projectUrl>
<iconUrl>https://git.x2software.net/pub/tapeti/raw/master/resources/icons/Tapeti.Flow.png</iconUrl>
<licenseUrl>https://raw.githubusercontent.com/MvRens/Tapeti/master/UNLICENSE</licenseUrl>
<projectUrl>https://github.com/MvRens/Tapeti</projectUrl>
<iconUrl>https://raw.githubusercontent.com/MvRens/Tapeti/master/resources/icons/Tapeti.Flow.png</iconUrl>
<requireLicenseAcceptance>false</requireLicenseAcceptance>
<description>Flow extension for Tapeti</description>
<copyright></copyright>
<tags>rabbitmq tapeti flow</tags>
<dependencies>
<dependency id="X2Software.Tapeti" version="[$depversion$]" />
<dependency id="X2Software.Tapeti.Annotations" version="[$depversion$]" />
<dependency id="X2Software.Tapeti" version="[$version$]" />
<dependency id="X2Software.Tapeti.Annotations" version="[$version$]" />
</dependencies>
</metadata>
</package>

10
Tapeti.SimpleInjector/Tapeti.SimpleInjector.nuspec
View File

@ -3,18 +3,18 @@
<metadata>
<id>X2Software.Tapeti.SimpleInjector</id>
<version>$version$</version>
<title>$title$</title>
<title>Tapeti SimpleInjector</title>
<authors>Mark van Renswoude</authors>
<owners>Mark van Renswoude</owners>
<licenseUrl>https://git.x2software.net/pub/tapeti/raw/master/UNLICENSE</licenseUrl>
<projectUrl>https://git.x2software.net/pub/tapeti</projectUrl>
<iconUrl>https://git.x2software.net/pub/tapeti/raw/master/resources/icons/Tapeti.SimpleInjector.png</iconUrl>
<licenseUrl>https://raw.githubusercontent.com/MvRens/Tapeti/master/UNLICENSE</licenseUrl>
<projectUrl>https://github.com/MvRens/Tapeti</projectUrl>
<iconUrl>https://raw.githubusercontent.com/MvRens/Tapeti/master/resources/icons/Tapeti.SimpleInjector.png</iconUrl>
<requireLicenseAcceptance>false</requireLicenseAcceptance>
<description>SimpleInjector integration package for Tapeti</description>
<copyright></copyright>
<tags>rabbitmq tapeti simpleinjector</tags>
<dependencies>
<dependency id="X2Software.Tapeti" version="[$depversion$]" />
<dependency id="X2Software.Tapeti" version="[$version$]" />
</dependencies>
</metadata>
</package>

13
Tapeti/Config/ICleanupMiddleware.cs Normal file
View File

@ -0,0 +1,13 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Tapeti.Config
{
public interface ICleanupMiddleware
{
Task Handle(IMessageContext context, HandlingResult handlingResult);
}
}

1
Tapeti/Config/IConfig.cs
View File

@ -9,6 +9,7 @@ namespace Tapeti.Config
{
IDependencyResolver DependencyResolver { get; }
IReadOnlyList<IMessageMiddleware> MessageMiddleware { get; }
IReadOnlyList<ICleanupMiddleware> CleanupMiddleware { get; }
IReadOnlyList<IPublishMiddleware> PublishMiddleware { get; }
IEnumerable<IQueue> Queues { get; }

17
Tapeti/Config/IExceptionStrategyContext.cs Normal file
View File

@ -0,0 +1,17 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Tapeti.Config
{
public interface IExceptionStrategyContext
{
IMessageContext MessageContext { get; }
Exception Exception { get; }
HandlingResultBuilder HandlingResult { get; set; }
}
}

148
Tapeti/Connection/TapetiConsumer.cs
View File

@ -16,50 +16,152 @@ namespace Tapeti.Connection
private readonly string queueName;
private readonly IDependencyResolver dependencyResolver;
private readonly IReadOnlyList<IMessageMiddleware> messageMiddleware;
private readonly IReadOnlyList<ICleanupMiddleware> cleanupMiddleware;
private readonly List<IBinding> bindings;
private readonly ILogger logger;
private readonly IExceptionStrategy exceptionStrategy;
public TapetiConsumer(TapetiWorker worker, string queueName, IDependencyResolver dependencyResolver, IEnumerable<IBinding> bindings, IReadOnlyList<IMessageMiddleware> messageMiddleware)
public TapetiConsumer(TapetiWorker worker, string queueName, IDependencyResolver dependencyResolver, IEnumerable<IBinding> bindings, IReadOnlyList<IMessageMiddleware> messageMiddleware, IReadOnlyList<ICleanupMiddleware> cleanupMiddleware)
{
this.worker = worker;
this.queueName = queueName;
this.dependencyResolver = dependencyResolver;
this.messageMiddleware = messageMiddleware;
this.cleanupMiddleware = cleanupMiddleware;
this.bindings = bindings.ToList();
logger = dependencyResolver.Resolve<ILogger>();
exceptionStrategy = dependencyResolver.Resolve<IExceptionStrategy>();
}
public override void HandleBasicDeliver(string consumerTag, ulong deliveryTag, bool redelivered, string exchange, string routingKey,
IBasicProperties properties, byte[] body)
{
Task.Run(async () =>
{
ExceptionDispatchInfo exception = null;
MessageContext context = null;
HandlingResult handlingResult = null;
try
{
var message = dependencyResolver.Resolve<IMessageSerializer>().Deserialize(body, properties);
if (message == null)
throw new ArgumentException("Empty message");
var validMessageType = false;
using (var context = new MessageContext
try
{
context = new MessageContext
{
DependencyResolver = dependencyResolver,
Queue = queueName,
RoutingKey = routingKey,
Message = message,
Properties = properties
})
};
await DispatchMesage(context, body);
handlingResult = new HandlingResult
{
ConsumeResponse = ConsumeResponse.Ack,
MessageAction = MessageAction.None
};
}
catch (Exception eDispatch)
{
exception = ExceptionDispatchInfo.Capture(UnwrapException(eDispatch));
logger.HandlerException(eDispatch);
try
{
var exceptionStrategyContext = new ExceptionStrategyContext(context, exception.SourceException);
exceptionStrategy.HandleException(exceptionStrategyContext);
handlingResult = exceptionStrategyContext.HandlingResult.ToHandlingResult();
}
catch (Exception eStrategy)
{
logger.HandlerException(eStrategy);
}
}
try
{
if (handlingResult == null)
{
handlingResult = new HandlingResult
{
ConsumeResponse = ConsumeResponse.Nack,
MessageAction = MessageAction.None
};
}
await RunCleanup(context, handlingResult);
}
catch (Exception eCleanup)
{
logger.HandlerException(eCleanup);
}
}
finally
{
try
{
if (handlingResult == null)
{
handlingResult = new HandlingResult
{
ConsumeResponse = ConsumeResponse.Nack,
MessageAction = MessageAction.None
};
}
await worker.Respond(deliveryTag, handlingResult.ConsumeResponse);
}
catch (Exception eRespond)
{
logger.HandlerException(eRespond);
}
try
{
if (context != null)
{
context.Dispose();
}
}
catch (Exception eDispose)
{
logger.HandlerException(eDispose);
}
}
});
}
private async Task RunCleanup(MessageContext context, HandlingResult handlingResult)
{
foreach(var handler in cleanupMiddleware)
{
try
{
await handler.Handle(context, handlingResult);
}
catch (Exception eCleanup)
{
logger.HandlerException(eCleanup);
}
}
}
private async Task DispatchMesage(MessageContext context, byte[] body)
{
var message = dependencyResolver.Resolve<IMessageSerializer>().Deserialize(body, context.Properties);
if (message == null)
throw new ArgumentException("Empty message");
context.Message = message;
var validMessageType = false;
foreach (var binding in bindings)
{
if (binding.Accept(context, message))
{
InvokeUsingBinding(context, binding, message);
await InvokeUsingBinding(context, binding, message);
validMessageType = true;
}
@ -67,27 +169,9 @@ namespace Tapeti.Connection
if (!validMessageType)
throw new ArgumentException($"Unsupported message type: {message.GetType().FullName}");
worker.Respond(deliveryTag, ConsumeResponse.Ack);
}
catch (Exception e)
{
exception = ExceptionDispatchInfo.Capture(UnwrapException(e));
worker.Respond(deliveryTag, exceptionStrategy.HandleException(context, exception.SourceException));
}
}
}
catch (Exception e)
{
exception = ExceptionDispatchInfo.Capture(UnwrapException(e));
worker.Respond(deliveryTag, exceptionStrategy.HandleException(null, exception.SourceException));
}
exception?.Throw();
}
private void InvokeUsingBinding(MessageContext context, IBinding binding, object message)
private Task InvokeUsingBinding(MessageContext context, IBinding binding, object message)
{
context.Binding = binding;
@ -136,9 +220,7 @@ namespace Tapeti.Connection
await binding.Invoke(c, message);
});
firstCaller.Call(context)
.Wait();
return firstCaller.Call(context);
}
private static Exception UnwrapException(Exception exception)

2
Tapeti/Connection/TapetiWorker.cs
View File

@ -57,7 +57,7 @@ namespace Tapeti.Connection
return taskQueue.Value.Add(async () =>
{
(await GetChannel()).BasicConsume(queueName, false, new TapetiConsumer(this, queueName, config.DependencyResolver, bindings, config.MessageMiddleware));
(await GetChannel()).BasicConsume(queueName, false, new TapetiConsumer(this, queueName, config.DependencyResolver, bindings, config.MessageMiddleware, config.CleanupMiddleware));
}).Unwrap();
}

9
Tapeti/Default/ConsoleLogger.cs
View File

@ -1,4 +1,6 @@
namespace Tapeti.Default
using System;
namespace Tapeti.Default
{
public class ConsoleLogger : ILogger
{
@ -16,5 +18,10 @@
{
throw new System.NotImplementedException();
}
public void HandlerException(Exception e)
{
Console.WriteLine(e.ToString());
}
}
}

8
Tapeti/Default/DevNullLogger.cs
View File

@ -1,4 +1,6 @@
namespace Tapeti.Default
using System;
namespace Tapeti.Default
{
public class DevNullLogger : ILogger
{
@ -13,5 +15,9 @@
public void ConnectSuccess(TapetiConnectionParams connectionParams)
{
}
public void HandlerException(Exception e)
{
}
}
}

40
Tapeti/Default/ExceptionStrategyContext.cs Normal file
View File

@ -0,0 +1,40 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tapeti.Config;
namespace Tapeti.Default
{
public class ExceptionStrategyContext : IExceptionStrategyContext
{
internal ExceptionStrategyContext(IMessageContext messageContext, Exception exception)
{
MessageContext = messageContext;
Exception = exception;
}
public IMessageContext MessageContext { get; }
public Exception Exception { get; }
private HandlingResultBuilder handlingResult;
public HandlingResultBuilder HandlingResult
{
get
{
if (handlingResult == null)
{
handlingResult = new HandlingResultBuilder();
}
return handlingResult;
}
set
{
handlingResult = value;
}
}
}
}

17
Tapeti/Default/NackExceptionStrategy.cs Normal file
View File

@ -0,0 +1,17 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tapeti.Config;
namespace Tapeti.Default
{
public class NackExceptionStrategy : IExceptionStrategy
{
public void HandleException(IExceptionStrategyContext context)
{
context.HandlingResult.ConsumeResponse = ConsumeResponse.Nack;
}
}
}

5
Tapeti/Default/RequeueExceptionStrategy.cs
View File

@ -5,10 +5,9 @@ namespace Tapeti.Default
{
public class RequeueExceptionStrategy : IExceptionStrategy
{
public ConsumeResponse HandleException(IMessageContext context, Exception exception)
public void HandleException(IExceptionStrategyContext context)
{
// TODO log exception
return ConsumeResponse.Requeue;
context.HandlingResult.ConsumeResponse = ConsumeResponse.Requeue;
}
}
}

79
Tapeti/HandlingResult.cs Normal file
View File

@ -0,0 +1,79 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Tapeti
{
public class HandlingResult
{
public HandlingResult()
{
ConsumeResponse = ConsumeResponse.Nack;
MessageAction = MessageAction.None;
}
/// <summary>
/// Determines which response will be given to the message bus from where the message originates.
/// </summary>
public ConsumeResponse ConsumeResponse { get; internal set; }
/// <summary>
/// Registers which action the Exception strategy has taken or will take to handle the error condition
/// on the message. This is important to know for cleanup handlers registered by middleware.
/// </summary>
public MessageAction MessageAction { get; internal set; }
}
public class HandlingResultBuilder
{
private static readonly HandlingResult Default = new HandlingResult();
private HandlingResult data = Default;
public ConsumeResponse ConsumeResponse {
get
{
return data.ConsumeResponse;
}
set
{
GetWritableData().ConsumeResponse = value;
}
}
public MessageAction MessageAction
{
get
{
return data.MessageAction;
}
set
{
GetWritableData().MessageAction = value;
}
}
public HandlingResult ToHandlingResult()
{
if (data == Default)
{
return new HandlingResult();
}
var result = GetWritableData();
data = Default;
return result;
}
private HandlingResult GetWritableData()
{
if (data == Default)
{
data = new HandlingResult();
}
return data;
}
}
}

8
Tapeti/IExceptionStrategy.cs
View File

@ -8,9 +8,9 @@ namespace Tapeti
/// <summary>
/// Called when an exception occurs while handling a message.
/// </summary>
/// <param name="context">The message context if available. May be null!</param>
/// <param name="exception">The exception instance</param>
/// <returns>The ConsumeResponse to determine whether to requeue, dead-letter (nack) or simply ack the message.</returns>
ConsumeResponse HandleException(IMessageContext context, Exception exception);
/// <param name="context">The exception strategy context containing the necessary data including the message context and the thrown exception.
/// Also the response to the message can be set.
/// If there is any other handling of the message than the expected default than HandlingResult.MessageFutureAction must be set accordingly. </param>
void HandleException(IExceptionStrategyContext context);
}
}

5
Tapeti/ILogger.cs
View File

@ -1,4 +1,6 @@
namespace Tapeti
using System;
namespace Tapeti
{
// This interface is deliberately specific and typed to allow for structured logging (e.g. Serilog)
// instead of only string-based logging without control over the output.
@ -7,5 +9,6 @@
void Connect(TapetiConnectionParams connectionParams);
void ConnectFailed(TapetiConnectionParams connectionParams);
void ConnectSuccess(TapetiConnectionParams connectionParams);
void HandlerException(Exception e);
}
}

15
Tapeti/MessageFutureAction.cs Normal file
View File

@ -0,0 +1,15 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Tapeti
{
public enum MessageAction
{
None = 1,
ErrorLog = 2,
Retry = 3,
}
}

6
Tapeti/Tapeti.csproj
View File

@ -53,6 +53,8 @@
<Reference Include="System.Xml" />
</ItemGroup>
<ItemGroup>
<Compile Include="Config\IExceptionStrategyContext.cs" />
<Compile Include="Config\ICleanupMiddleware.cs" />
<Compile Include="Config\IPublishContext.cs" />
<Compile Include="Config\IMessageFilterMiddleware.cs" />
<Compile Include="Config\IPublishMiddleware.cs" />
@ -63,6 +65,9 @@
<Compile Include="Connection\TapetiWorker.cs" />
<Compile Include="Default\ConsoleLogger.cs" />
<Compile Include="Default\DevNullLogger.cs" />
<Compile Include="Default\ExceptionStrategyContext.cs" />
<Compile Include="Default\NackExceptionStrategy.cs" />
<Compile Include="HandlingResult.cs" />
<Compile Include="Default\JsonMessageSerializer.cs" />
<Compile Include="Default\MessageContext.cs" />
<Compile Include="Default\PublishResultBinding.cs" />
@ -83,6 +88,7 @@
<Compile Include="Config\IConfig.cs" />
<Compile Include="MessageController.cs" />
<Compile Include="Config\IBindingMiddleware.cs" />
<Compile Include="MessageFutureAction.cs" />
<Compile Include="TapetiAppSettingsConnectionParams.cs" />
<Compile Include="TapetiConnectionParams.cs" />
<Compile Include="TapetiConfig.cs" />

10
Tapeti/Tapeti.nuspec
View File

@ -3,18 +3,18 @@
<metadata>
<id>X2Software.Tapeti</id>
<version>$version$</version>
<title>$title$</title>
<title>Tapeti</title>
<authors>Mark van Renswoude</authors>
<owners>Mark van Renswoude</owners>
<licenseUrl>https://git.x2software.net/pub/tapeti/raw/master/UNLICENSE</licenseUrl>
<projectUrl>https://git.x2software.net/pub/tapeti</projectUrl>
<iconUrl>https://git.x2software.net/pub/tapeti/raw/master/resources/icons/Tapeti.png</iconUrl>
<licenseUrl>https://raw.githubusercontent.com/MvRens/Tapeti/master/UNLICENSE</licenseUrl>
<projectUrl>https://github.com/MvRens/Tapeti</projectUrl>
<iconUrl>https://raw.githubusercontent.com/MvRens/Tapeti/master/resources/icons/Tapeti.png</iconUrl>
<requireLicenseAcceptance>false</requireLicenseAcceptance>
<description>Controller-based framework for RabbitMQ microservice architectures</description>
<copyright></copyright>
<tags>rabbitmq tapeti</tags>
<dependencies>
<dependency id="X2Software.Tapeti.Annotations" version="[$depversion$]" />
<dependency id="X2Software.Tapeti.Annotations" version="[$version$]" />
</dependencies>
</metadata>
</package>

18
Tapeti/TapetiConfig.cs
View File

@ -26,6 +26,7 @@ namespace Tapeti
private readonly List<IBindingMiddleware> bindingMiddleware = new List<IBindingMiddleware>();
private readonly List<IMessageMiddleware> messageMiddleware = new List<IMessageMiddleware>();
private readonly List<ICleanupMiddleware> cleanupMiddleware = new List<ICleanupMiddleware>();
private readonly List<IPublishMiddleware> publishMiddleware = new List<IPublishMiddleware>();
private readonly IDependencyResolver dependencyResolver;
@ -62,7 +63,7 @@ namespace Tapeti
queues.AddRange(dynamicBindings.Select(bl => new Queue(new QueueInfo { Dynamic = true }, bl)));
var config = new Config(dependencyResolver, messageMiddleware, publishMiddleware, queues);
var config = new Config(dependencyResolver, messageMiddleware, cleanupMiddleware, publishMiddleware, queues);
(dependencyResolver as IDependencyContainer)?.RegisterDefaultSingleton<IConfig>(config);
return config;
@ -83,6 +84,13 @@ namespace Tapeti
}
public TapetiConfig Use(ICleanupMiddleware handler)
{
cleanupMiddleware.Add(handler);
return this;
}
public TapetiConfig Use(IPublishMiddleware handler)
{
publishMiddleware.Add(handler);
@ -108,6 +116,8 @@ namespace Tapeti
Use((IBindingMiddleware)middleware);
else if (middleware is IMessageMiddleware)
Use((IMessageMiddleware)middleware);
else if (middleware is ICleanupMiddleware)
Use((ICleanupMiddleware)middleware);
else if (middleware is IPublishMiddleware)
Use((IPublishMiddleware)middleware);
else
@ -133,7 +143,7 @@ namespace Tapeti
container.RegisterDefault<IMessageSerializer, JsonMessageSerializer>();
container.RegisterDefault<IExchangeStrategy, NamespaceMatchExchangeStrategy>();
container.RegisterDefault<IRoutingKeyStrategy, TypeNameRoutingKeyStrategy>();
container.RegisterDefault<IExceptionStrategy, RequeueExceptionStrategy>();
container.RegisterDefault<IExceptionStrategy, NackExceptionStrategy>();
}
@ -345,16 +355,18 @@ namespace Tapeti
{
public IDependencyResolver DependencyResolver { get; }
public IReadOnlyList<IMessageMiddleware> MessageMiddleware { get; }
public IReadOnlyList<ICleanupMiddleware> CleanupMiddleware { get; }
public IReadOnlyList<IPublishMiddleware> PublishMiddleware { get; }
public IEnumerable<IQueue> Queues { get; }
private readonly Dictionary<MethodInfo, IBinding> bindingMethodLookup;
public Config(IDependencyResolver dependencyResolver, IReadOnlyList<IMessageMiddleware> messageMiddleware, IReadOnlyList<IPublishMiddleware> publishMiddleware, IEnumerable<IQueue> queues)
public Config(IDependencyResolver dependencyResolver, IReadOnlyList<IMessageMiddleware> messageMiddleware, IReadOnlyList<ICleanupMiddleware> cleanupMiddleware, IReadOnlyList<IPublishMiddleware> publishMiddleware, IEnumerable<IQueue> queues)
{
DependencyResolver = dependencyResolver;
MessageMiddleware = messageMiddleware;
CleanupMiddleware = cleanupMiddleware;
PublishMiddleware = publishMiddleware;
Queues = queues.ToList();

42
Test/FlowEndController.cs
View File

@ -1,6 +1,7 @@
using System;
using Tapeti.Annotations;
using Tapeti.Flow;
using Tapeti.Flow.Annotations;
namespace Test
{
@ -17,7 +18,25 @@ namespace Test
public IYieldPoint StartFlow(PingMessage message)
{
Console.WriteLine("PingMessage received, call flowProvider.End()");
Console.WriteLine("PingMessage received, calling flowProvider.End() directly");
if (DateTime.Now < new DateTime(2000, 1, 1))
{
//never true
return flowProvider
.YieldWithRequestSync<PingConfirmationRequestMessage, PingConfirmationResponseMessage>
(new PingConfirmationRequestMessage() { StoredInState = "Ping:" },
HandlePingConfirmationResponse);
}
return Finish();
}
[Continuation]
public IYieldPoint HandlePingConfirmationResponse(PingConfirmationResponseMessage msg)
{
Console.WriteLine("Ending ping flow: " + msg.Answer);
return Finish();
}
@ -33,5 +52,26 @@ namespace Test
}
[Request(Response = typeof(PingConfirmationResponseMessage))]
public class PingConfirmationRequestMessage
{
public string StoredInState { get; set; }
}
public class PingConfirmationResponseMessage
{
public string Answer { get; set; }
}
public PingConfirmationResponseMessage PingConfirmation(PingConfirmationRequestMessage message)
{
Console.WriteLine(">> receive Ping (returning pong)");
return new PingConfirmationResponseMessage
{
Answer = message.StoredInState + " Pong!"
};
}
}
}

28
Test/MarcoController.cs
View File

@ -19,6 +19,7 @@ namespace Test
// Public properties are automatically stored and retrieved while in a flow
public Guid StateTestGuid { get; set; }
public int Phase;
public MarcoController(IPublisher publisher, IFlowProvider flowProvider, Visualizer visualizer)
{
@ -29,21 +30,40 @@ namespace Test
[Start]
public async Task<IYieldPoint> StartFlow()
public async Task<IYieldPoint> StartFlow(bool go)
{
Console.WriteLine("Starting stand-alone flow");
await Task.Delay(1000);
Console.WriteLine("Phase = " + Phase + " Starting stand-alone flow");
await Task.Delay(10);
Phase = 1;
if (go)
return flowProvider.YieldWithRequestSync<PoloConfirmationRequestMessage, PoloConfirmationResponseMessage>
(new PoloConfirmationRequestMessage(),
HandlePoloConfirmationResponse);
Console.WriteLine("Phase = " + Phase + " Ending stand-alone flow prematurely");
return flowProvider.End();
}
[Continuation]
public IYieldPoint HandlePoloConfirmationResponse(PoloConfirmationResponseMessage msg)
{
Console.WriteLine("Ending stand-alone flow");
Console.WriteLine("Phase = " + Phase + " Handling the first response and sending the second...");
Phase = 2;
return flowProvider.YieldWithRequestSync<PoloConfirmationRequestMessage, PoloConfirmationResponseMessage>
(new PoloConfirmationRequestMessage(),
HandlePoloConfirmationResponseEnd);
}
[Continuation]
public IYieldPoint HandlePoloConfirmationResponseEnd(PoloConfirmationResponseMessage msg)
{
Console.WriteLine("Phase = " + Phase + " Handling the second response and Ending stand-alone flow");
return flowProvider.End();
}

2
Test/MarcoEmitter.cs
View File

@ -17,7 +17,7 @@ namespace Test
public async Task Run()
{
await publisher.Publish(new MarcoMessage());
//await publisher.Publish(new MarcoMessage());
/*
var concurrent = new SemaphoreSlim(20);

14
Test/Program.cs
View File

@ -1,4 +1,5 @@
using System;
using System.Threading.Tasks;
using SimpleInjector;
using Tapeti;
using Tapeti.DataAnnotations;
@ -6,6 +7,7 @@ using Tapeti.Flow;
using Tapeti.Flow.SQL;
using Tapeti.Helpers;
using Tapeti.SimpleInjector;
using System.Threading;
namespace Test
{
@ -20,8 +22,7 @@ namespace Test
var container = new Container();
container.Register<MarcoEmitter>();
container.Register<Visualizer>();
//container.Register<IFlowRepository>(() => new EF(serviceID));
container.Register<ILogger, Tapeti.Default.ConsoleLogger>();
var config = new TapetiConfig(new SimpleInjectorDependencyResolver(container))
.WithFlow()
@ -34,6 +35,11 @@ namespace Test
Params = new TapetiAppSettingsConnectionParams()
})
{
var flowStore = container.GetInstance<IFlowStore>();
var flowStore2 = container.GetInstance<IFlowStore>();
Console.WriteLine("IFlowHandler is singleton = " + (flowStore == flowStore2));
connection.Connected += (sender, e) => {
Console.WriteLine("Event Connected");
};
@ -54,7 +60,9 @@ namespace Test
connection.GetPublisher().Publish(new FlowEndController.PingMessage());
container.GetInstance<IFlowStarter>().Start<MarcoController>(c => c.StartFlow);
container.GetInstance<IFlowStarter>().Start<MarcoController, bool>(c => c.StartFlow, true);
Thread.Sleep(1000);
var emitter = container.GetInstance<MarcoEmitter>();
emitter.Run().Wait();

40
appveyor.yml Normal file
View File

@ -0,0 +1,40 @@
image: Visual Studio 2015
install:
- choco install gitversion.portable -pre -y
before_build:
- nuget restore
- ps: gitversion /l console /output buildserver /updateAssemblyInfo
after_build:
- cmd: ECHO nuget pack Tapeti\Tapeti.nuspec -version "%GitVersion_NuGetVersion%" -prop "target=%CONFIGURATION%"
- cmd: nuget pack Tapeti\Tapeti.nuspec -version "%GitVersion_NuGetVersion%" -prop "target=%CONFIGURATION%"
- cmd: appveyor PushArtifact "X2Software.Tapeti.%GitVersion_NuGetVersion%.nupkg"
- cmd: nuget pack Tapeti.Annotations\Tapeti.Annotations.nuspec -version "%GitVersion_NuGetVersion%" -prop "target=%CONFIGURATION%"
- cmd: appveyor PushArtifact "X2Software.Tapeti.Annotations.%GitVersion_NuGetVersion%.nupkg"
- cmd: nuget pack Tapeti.DataAnnotations\Tapeti.DataAnnotations.nuspec -version "%GitVersion_NuGetVersion%" -prop "target=%CONFIGURATION%"
- cmd: appveyor PushArtifact "X2Software.Tapeti.DataAnnotations.%GitVersion_NuGetVersion%.nupkg"
- cmd: nuget pack Tapeti.Flow\Tapeti.Flow.nuspec -version "%GitVersion_NuGetVersion%" -prop "target=%CONFIGURATION%"
- cmd: appveyor PushArtifact "X2Software.Tapeti.Flow.%GitVersion_NuGetVersion%.nupkg"
- cmd: nuget pack Tapeti.SimpleInjector\Tapeti.SimpleInjector.nuspec -version "%GitVersion_NuGetVersion%" -prop "target=%CONFIGURATION%"
- cmd: appveyor PushArtifact "X2Software.Tapeti.SimpleInjector.%GitVersion_NuGetVersion%.nupkg"
assembly_info:
patch: false
build:
project: Tapeti.sln
platform:
- Any CPU
configuration:
- Release
deploy:
provider: NuGet
api_key:
secure: pkaN6R8ocu0Q93uCK3DOCifgr1Q4tuH4ZJ4eiV9U5NmwE5qRM2xjUy4B9SkZCsWx
skip_symbols: false
artifact: /.*\.nupkg/