public async Task <PagedMessages <ArchivedMessage> > Handle(GetMessages request, CancellationToken cancellationToken)
{
ICosmosDbContainer messagesContainer = await _cosmosDbClient.GetContainer("messages");
IQueryable <ArchivedMessage> query = messagesContainer.GetByLinq <ArchivedMessage>();
query = ApplyFilters(query, request);
query = query.OrderByDescending(m => m.MessageDate);
int count = await messagesContainer.ResolveCount(query);
query = ApplyPaging(query, request);
CosmosDbResponse <IEnumerable <ArchivedMessage> > messages = await messagesContainer.ResolveWithStreamIterator(query);
if (!messages.IsSuccessful)
{
throw new ApplicationException($"Error fetching messages: {messages.ErrorMessage}");
}
return(new PagedMessages <ArchivedMessage>()
{
Messages = messages.Result,
PageIndex = request.MessageFilters.PageIndex,
PageSize = request.MessageFilters.PageSize,
TotalRecords = count
});
}
public TrackedCosmosDbContainer(IContainerDefinition definition, ICosmosDbContainer container, IChargeTracker <CosmosDbChargedResponse> chargeTracker, string feature, ICollection <string> context)
{
Definition = definition;
_innerContainer = container;
ChargeTracker = chargeTracker;
Feature = feature;
Tags = context;
ChargeTracker = chargeTracker;
}
public static ICosmosDbContainer AddTag(this ICosmosDbContainer container, string context)
{
TrackedCosmosDbContainer trackedContainer = container as TrackedCosmosDbContainer;
if (trackedContainer != null)
{
trackedContainer.Tags.Add(context);
return(trackedContainer);
}
return(container);
}
public CosmosDbContainerRepository(
ICosmosDbContainer container,
IEntityTypeNameResolver entityTypeNameResolver,
IIdValueGenerator <TDomainEntity> idValueGenerator,
IPartitionKeyResolver pkvResolver
)
{
Container = container;
_idValueGenerator = idValueGenerator;
_pkvResolver = pkvResolver;
_entityType = entityTypeNameResolver.ResolveEntityTypeName <TDomainEntity>();
}
public ICosmosDbContainer Create(Type creatorType, IContainerDefinition definition, ICosmosDbClient client)
{
if (Provider == null)
{
ICosmosDbContainer container = client
.GetContainer(definition.ContainerId)
.ConfigureAwait(false).GetAwaiter().GetResult();
return(container);
}
return(Provider(creatorType, definition, client));
}
public static async Task <ICosmosDbContainer> GetContainerForFeature(this ICosmosDbClient client, string containerId, string featureToTrack)
{
ICosmosDbContainer container = await client.GetContainer(containerId);
TrackedCosmosDbContainer trackedContainer = container as TrackedCosmosDbContainer;
if (trackedContainer != null)
{
trackedContainer.Feature = featureToTrack;
return(trackedContainer);
}
return(container);
}
public static ICosmosDbContainer WithContext(this ICosmosDbContainer container, string context)
{
if (container is TrackedCosmosDbContainer trackedCosmosDbContainer)
{
trackedCosmosDbContainer.Context.Add(context);
return(trackedCosmosDbContainer);
}
else
{
var chargeTracker = container.Client.ServiceProvider.GetRequiredService <IChargeTracker <CosmosDbChargedResponse> >();
return(new TrackedCosmosDbContainer(container.Definition, container, chargeTracker, "Global", new List <string> {
context
}));
}
}
public async Task <IEnumerable <HealthCheckInfo> > Handle(GetHealthCheckInfo request, CancellationToken cancellationToken)
{
IList <HealthCheckInfo> healthCheckInfoList = new List <HealthCheckInfo>();
//Get the latest HealthCheck Requests from Cosmos DB
ICosmosDbContainer messagesContainer = await _cosmosDbClient.GetContainer("messages");
IQueryable <ArchivedMessage> query = messagesContainer.GetByLinq <ArchivedMessage>();
query = query.Where(m => m.Message.MessageType == typeof(HealthCheckRequest).AssemblyQualifiedName)
.OrderByDescending(m => m.MessageDate)
.Take(12); // last hour
CosmosDbResponse <IEnumerable <ArchivedMessage> > messages = await messagesContainer.ResolveWithStreamIterator(query);
if (!messages.IsSuccessful)
{
throw new ApplicationException($"Error fetching messages: {messages.ErrorMessage}");
}
foreach (var message in messages.Result)
{
var heathCheckRequest = message.Message as HealthCheckRequest;
var healthCheckInfo = new HealthCheckInfo
{
HealthCheckRequest = heathCheckRequest
};
//Search the HealthCheck Responses using the correlationId
IEnumerable <ArchivedMessage> healthCheckResponses = await GetHealthCheckResponsesByCorrelationId(message.Message.CorrelationId);
foreach (var response in healthCheckResponses)
{
HealthCheckResponse healthCheckResponse = (HealthCheckResponse)response.Message;
healthCheckResponse.ResponseStatus = healthCheckResponse.AggregateTestResults();
MarkDelayedHealthyResponseAsWarning(healthCheckResponse, heathCheckRequest.MessageDate);
healthCheckInfo.HealthCheckResponses.Add(healthCheckResponse);
}
AddErrorsForMissingServices(healthCheckInfo);
AggregateResult(healthCheckInfo);
healthCheckInfoList.Add(healthCheckInfo);
}
return(healthCheckInfoList);
}
public async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] HttpRequest req,
ILogger log)
{
log.LogInformation("C# HTTP trigger Test Storing a message!");
var message = new ArchivedMessage(new TestMessage()
{
Description = "This is a test message with a random value of " + new Random().Next(0, int.MaxValue)
});
ICosmosDbContainer cosmosContainer = await _cosmosClient.GetContainer <ArchivedMessage>();
CosmosDbResponse <ArchivedMessage> cosmosResponse = await cosmosContainer.Add(message.Id, message);
return(new OkObjectResult($"Cosmos Response: {cosmosResponse.IsSuccessful}"));
}
public static void AddCosmosContext <TContext>(this IServiceCollection services) where TContext : CosmosContext, new()
{
services.AddTransient(typeof(TContext), provider =>
{
var cosmosDbClient = provider.GetRequiredService <ICosmosDbClient>();
var cosmosContext = new TContext();
Type cosmosContextType = typeof(TContext);
// concrete repository type to instantiate against the IRepository<> interface
Type repoType = typeof(CosmosDbContainerRepository <>);
IEnumerable <PropertyInfo> contextRepositories = cosmosContextType.GetProperties()
.Where(prop =>
prop.PropertyType.IsInterface &&
prop.PropertyType.IsGenericType &&
prop.PropertyType.GetGenericTypeDefinition() == typeof(IRepository <>));
foreach (PropertyInfo prop in contextRepositories)
{
Type repositoryEntityGenericType = prop.PropertyType.GetGenericArguments()[0];
Type constructedRepoType = repoType.MakeGenericType(repositoryEntityGenericType);
// TODO: how can we allow multiple repos of the same type but with different names and pk paths?
// We somehow have to search via ContainerDefs or... rework the whole config story...and have a Config() method on the CosmosContext that
// we use to configure each repository individually...
ContainerDefinition containerDefinition = cosmosDbClient.GetContainerDefinitionForType(prop.PropertyType.GetGenericArguments()[0]);
ICosmosDbContainer container = cosmosDbClient.CreateContainer(containerDefinition).ConfigureAwait(false).GetAwaiter().GetResult();
var entityTypeNameResolverInstance = new CosmosDbEntityTypeNameResolver();
var pkvResolver = new CosmosDbPartitionKeyResolver();
var idValueGeneratorType = typeof(CosmosDbIdValueGenerator <>);
var idValueGeneratorInstanceType = idValueGeneratorType.MakeGenericType(repositoryEntityGenericType);
var idValueGeneratorInstance = Activator.CreateInstance(idValueGeneratorInstanceType);
object repoInstance = Activator.CreateInstance(constructedRepoType, args: new object[] { container, entityTypeNameResolverInstance, idValueGeneratorInstance, pkvResolver });
prop.SetValue(cosmosContext, repoInstance);
}
return(cosmosContext);
});
}
private async Task <IEnumerable <ArchivedMessage> > GetHealthCheckResponsesByCorrelationId(string correlationId)
{
ICosmosDbContainer messagesContainer = await _cosmosDbClient.GetContainer("messages");
IQueryable <ArchivedMessage> queryHealthCheckResponse = messagesContainer.GetByLinq <ArchivedMessage>();
queryHealthCheckResponse = queryHealthCheckResponse.Where(m =>
m.Message.MessageType == typeof(HealthCheckResponse).AssemblyQualifiedName &&
m.Message.CorrelationId == correlationId);
CosmosDbResponse <IEnumerable <ArchivedMessage> > messages = await messagesContainer.ResolveWithStreamIterator(queryHealthCheckResponse);
if (!messages.IsSuccessful)
{
throw new ApplicationException($"Error fetching messages: {messages.ErrorMessage}");
}
return(messages.Result);
}
public static IServiceCollection AddSpendOps(this IServiceCollection services)
{
services.TryAddSingleton <ICosmosDbContainerFactory>(provider =>
{
var factory = new CosmosDbContainerFactory
{
Provider = (creatorType, containerDefinition, cosmosDbClient) =>
{
var chargeTracker = cosmosDbClient.ServiceProvider.GetService <IChargeTracker <CosmosDbChargedResponse> >();
ICosmosDbContainer container = cosmosDbClient.GetContainer(containerDefinition.ContainerId)
.ConfigureAwait(false).GetAwaiter().GetResult();
return(new TrackedCosmosDbContainer(containerDefinition, container, chargeTracker, creatorType.Name));
}
};
return(factory);
});
return(services);
}
public static void AddCosmosDbContext <TContext>(this IServiceCollection services) where TContext : DbContext, new()
{
services.AddTransient(typeof(TContext), provider =>
{
var cosmosDbClient = provider.GetRequiredService <ICosmosDbClient>();
var instance = new TContext();
Type instanceType = typeof(TContext);
// concrete repository type to instantiate against the IRepository<> interface
Type repoType = typeof(CosmosDbContainerRepository <>);
IEnumerable <PropertyInfo> contextRepositories = instanceType.GetProperties()
.Where(prop =>
prop.PropertyType.IsInterface &&
prop.PropertyType.IsGenericType &&
prop.PropertyType.GetGenericTypeDefinition() == typeof(IRepository <>));
var containerFactory = provider.GetRequiredService <ICosmosDbContainerFactory>();
foreach (PropertyInfo prop in contextRepositories)
{
Type repositoryEntityGenericType = prop.PropertyType.GetGenericArguments()[0];
Type constructedRepoType = repoType.MakeGenericType(repositoryEntityGenericType);
ContainerDefinition containerDefinition = cosmosDbClient.GetContainerDefinitionForType(prop.PropertyType.GetGenericArguments()[0]);
ICosmosDbContainer container = containerFactory.Create(instanceType, containerDefinition, cosmosDbClient);
var entityTypeNameResolverInstance = new CosmosDbEntityTypeNameResolver();
var pkvResolver = new CosmosDbPartitionKeyResolver();
var idValueGeneratorType = typeof(CosmosDbIdValueGenerator <>);
var idValueGeneratorInstanceType = idValueGeneratorType.MakeGenericType(repositoryEntityGenericType);
var idValueGeneratorInstance = Activator.CreateInstance(idValueGeneratorInstanceType);
object repoInstance = Activator.CreateInstance(constructedRepoType, args: new object[] { container, entityTypeNameResolverInstance, idValueGeneratorInstance, pkvResolver });
prop.SetValue(instance, repoInstance);
}
return(instance);
});
}
public async Task Run([ServiceBusTrigger("%ServiceBusTopic%", "%ServiceBusSubscription%", Connection = "ServiceBusConnectionString")] string messageString, ILogger log)
{
MessageBase originalMessage = null;
try
{
originalMessage = _messageReader.ReadMessage(messageString);
var archivedMessage = new ArchivedMessage(originalMessage);
if (archivedMessage.MessageTypeName.Equals(nameof(HealthCheckRequest)))
{
await HandleHealthCheckRequest(_messageReader.ReadMessage <HealthCheckRequest>(messageString));
}
ICosmosDbContainer cosmosContainer = await _cosmosClient.GetContainer <ArchivedMessage>();
CosmosDbResponse <ArchivedMessage> cosmosResponse =
await cosmosContainer.Add(archivedMessage.Id, archivedMessage);
if (!cosmosResponse.IsSuccessful)
{
throw new ApplicationException(
$"MessageStorage failed to write message {archivedMessage.Message.MessageId} of type {archivedMessage.Message.MessageType}. {cosmosResponse.ErrorMessage}");
}
}
catch (Exception storeException)
{
try
{
log.LogError(storeException, "exception saving to MessageStorage. OriginalMessage: " + messageString);
await _messageSender.SendException(storeException, originalMessage);
}
catch (Exception sendException)
{
log.LogCritical(sendException, "Exception attempting to save an error message to the bus! This is very bad!");
}
throw;
}
}
public async Task <bool> Handle(ResubmitMessage request, CancellationToken cancellationToken)
{
ICosmosDbContainer messagesContainer = await _cosmosDbClient.GetContainer("messages");
var cosmosResponse = await messagesContainer.Get <ArchivedMessage>(request.MessageId, request.MessageId);
if (!cosmosResponse.IsSuccessful)
{
throw new ApplicationException("Cosmos error: " + cosmosResponse.ErrorMessage);
}
var archivedMessage = cosmosResponse.Result;
if (archivedMessage != null && archivedMessage.Message != null)
{
var message = archivedMessage.Message;
message.MessageId = Guid.NewGuid().ToString();
message.MessageDate = _dateTimeProvider.UtcNow;
await _messageSender.SendMessage(message);
return(true);
}
return(false);
}
public TrackedCosmosDbContainer(IContainerDefinition definition, ICosmosDbContainer container, IChargeTracker <CosmosDbChargedResponse> chargeTracker, string feature)
: this(definition, container, chargeTracker, feature, new List <string>())
{
}
public ICosmosDbContainer Create(ICosmosDbContainer container)
{
return(new TrackedCosmosDbContainer(container.Definition, container, _chargeTracker, "Unspecified Feature"));
}
public WorkspaceRepository(ICosmosDbContainer cosmosDbContainer) : base(cosmosDbContainer)
{
}
public CosmosDBRepository(ICosmosDbContainer cosmosDbContainer)
{
_container = cosmosDbContainer.GetContainer(ContainerName);
}