// Note how the DataFeedManager service composes other services. The Engine and DataAccessor
// services are hosted and run "in process" to this DataFeedManager service via
// the ServiceModelEx InProcFactory. Please see "Programming WCF Services", 3rd Edition
// by Juval Lowy, pp 71-74 for more information.
void IDataFeeds.IngestTestData(TestMessage msg)
{
DateTime msgReceivedTime = DateTime.Now;
Debug.Assert(msg != null);
//string displayMsg = string.Format("{0}.IngestTestData(): Entered:", m_ThisName);
//ConsoleNTraceHelpers.DisplayInfoToConsoleNTrace(displayMsg);
// Check validity.
InProcessFeedMsg checkedMsg = null;
IFeedValidityEngine validityEngProxy = InProcFactory.CreateInstance <ValidityEngine, IFeedValidityEngine>();
checkedMsg = validityEngProxy.IsTestMessageValid(msg, msgReceivedTime);
InProcFactory.CloseProxy(validityEngProxy);
Debug.Assert(checkedMsg != null);
if (checkedMsg.IsValid)
{
// Used only with a test client.
DisplayMsgAndQueueLength(msg, checkedMsg);
// Save data.
IIngestedDataDA ingestDataDaProxy = InProcFactory.CreateInstance <IngestedDataDA, IIngestedDataDA>();
ingestDataDaProxy.SaveTestData(checkedMsg);
InProcFactory.CloseProxy(ingestDataDaProxy);
}
else
{
Debug.Assert(checkedMsg.IsValid);
LogInvalidMessageError(checkedMsg);
}
}
public void Distribute(int publicationItemID)
{
BLL.DistributionHub.IDistributionHub distributionHub = InProcFactory.CreateInstance <BLL.DistributionHub.DistributionHub, BLL.DistributionHub.IDistributionHub>();
try
{
Entities.PublicationEntities.PublicationItem publicationItem = distributionHub.PopulatePublicationItem(publicationItemID);
HelperClasses.Output.ThrowIfFailed(publicationItem != null, string.Format("Could not load item {0}", publicationItemID.ToString()));
bool isItemPublishable = distributionHub.IsItemPublishable(publicationItem);
if (isItemPublishable)
{
publicationItem.Status = 1;
HelperClasses.Output.ThrowIfFailed(distributionHub.SaveItem(publicationItem), string.Format("Could not set queued status for item {0} published status.", publicationItemID.ToString()));
HelperClasses.Output.ThrowIfFailed(PublishIt(publicationItemID), string.Format("Could not stream to destination: {0}", publicationItemID.ToString()));
publicationItem.Status = 2;
HelperClasses.Output.ThrowIfFailed(distributionHub.SaveItem(publicationItem), string.Format("Could not set item {0} published status.", publicationItemID.ToString()));
}
}
catch (Exception ex)
{
HelperClasses.Output.ThrowIfFailed(false, ex.Message);
}
finally
{
InProcFactory.CloseProxy(distributionHub);
}
//Life is good, so let the transaction commit and be published.
}
IngestedDataAnalysisResult ISomeServiceContract.AnalyzeIngestedData()
{
// Get the ingested data from the DB.
ISomeDataAnalysisEngine dataAnalysisEngineProxy =
InProcFactory.CreateInstance <SomeDataAnalysisEngine, ISomeDataAnalysisEngine>();
IngestedDataAnalysisResult analysisResult = dataAnalysisEngineProxy.DoIngestedDataAnalysis();
return(analysisResult);
}
public ApplicationInfo[] GetApplications()
{
var repositoryService = InProcFactory.CreateInstance <ApplicationRepositoryService, IApplicationRepository>();
try
{
return(repositoryService.GetApplications());
}
finally
{
InProcFactory.CloseProxy(repositoryService);
}
}
private void UseRepository(Action <IApplicationRepository> action)
{
var repositoryService = InProcFactory.CreateInstance <ApplicationRepositoryService, IApplicationRepository>();
try
{
action(repositoryService);
}
finally
{
InProcFactory.CloseProxy(repositoryService);
}
}
public ApplicationTenantsResult GetApplicationTenants(ApplicationTenantsQuery query)
{
var repositoryService = InProcFactory.CreateInstance <ApplicationRepositoryService, IApplicationRepository>();
try
{
return(repositoryService.GetApplicationTenants(query));
}
finally
{
InProcFactory.CloseProxy(repositoryService);
}
}
private static void DisplayMsgAndQueueLength(TestMessage msg, InProcessFeedMsg checkedMsg)
{
// For test client only.
IFeedAdminDA feedAdminDaProxy = InProcFactory.CreateInstance <AdminDA, IFeedAdminDA>();
long queueLength = feedAdminDaProxy.GetQueueLength(iFX.Common.ConstantsNEnums.IngestionQueueName);
InProcFactory.CloseProxy(feedAdminDaProxy);
checkedMsg.QueueLength = queueLength;
string queueLengthMsg = string.Format("{0} count = {1}",
iFX.Common.ConstantsNEnums.IngestionQueueName,
queueLength);
ConsoleNTraceHelpers.DisplayInfoToConsoleNTrace(queueLengthMsg);
ConsoleNTraceHelpers.DisplayTestMessage(msg);
ConsoleNTraceHelpers.TraceTestMessage(msg);
}
IngestedDataAnalysisResult ISomeDataAnalysisEngine.DoIngestedDataAnalysis()
{
// Get the ingested data from the DB.
IIngestedDataDA ingestDataDaProxy = InProcFactory.CreateInstance <IngestedDataDA, IIngestedDataDA>();
string dummyDataForAnalysis = ingestDataDaProxy.GetDummyDataForAnalysis();
// Do the analysis.
IngestedDataAnalysisResult result = new IngestedDataAnalysisResult();
InProcFactory.CloseProxy(ingestDataDaProxy);
result.ResultPart1 = dummyDataForAnalysis;
int analysisResult = dummyDataForAnalysis.Length;
result.ResultPart2 =
string.Format("The analysis of the dummy data reveals it contains {0} characters", analysisResult);
return(result);
}
DataFeedStatistics IFeedAdmin.PresentFeedComponentInfo(string componentName)
{
ConsoleNTraceHelpers.DisplayInfoToConsoleNTrace(m_ThisName + ".PresentFeedComponentInfo(): Entered:");
// Check validity of all requests.
IAdminValidityEngine validityEngProxy = InProcFactory.CreateInstance <ValidityEngine, IAdminValidityEngine>();
validityEngProxy.IsPresentFeedComponentInfoRequestValid(componentName);
InProcFactory.CloseProxy(validityEngProxy);
// Retrieve Feed Component info
DataFeedStatistics stats = null;
IFeedAdminDA feedAdminDaProxy = InProcFactory.CreateInstance <AdminDA, IFeedAdminDA>();
stats = feedAdminDaProxy.GetFeedStatistics(componentName);
InProcFactory.CloseProxy(feedAdminDaProxy);
return(stats);
}
protected WcfStreamWrapper()
{
NetNamedPipeBinding binding;
try
{
binding = new NetNamedPipeContextBinding("InProcFactory");
}
catch
{
binding = new NetNamedPipeContextBinding();
}
binding.TransferMode = TransferMode.Streamed;
binding.MaxReceivedMessageSize = 524288;
InProcFactory.SetBinding(binding);
Proxy = InProcFactory.CreateInstance <S, I>(binding);
}
protected void UpdateTenant(string applicationName, string tenantName, Action <ApplicationTenantHeaderUpdateInfo> updateInfo)
{
if (string.IsNullOrEmpty(applicationName))
{
throw new ArgumentNullException("applicationName");
}
if (string.IsNullOrEmpty(tenantName))
{
throw new ArgumentNullException("tenantName");
}
var repositoryService = InProcFactory.CreateInstance <ApplicationRepositoryService, IApplicationRepository>();
try
{
var tenant = repositoryService.GetTenantHeaderInfo(applicationName, tenantName);
if (tenant == null)
{
throw new ArgumentException(string.Format("Tenant {0} from application {1} could not be found.", tenantName, applicationName));
}
var tenantUpdateInfo = new ApplicationTenantHeaderUpdateInfo()
{
ApplicationName = applicationName,
Name = tenantName,
IsActive = tenant.IsActive,
ContractStartTime = tenant.ContractStartedAt,
Url = tenant.Url
};
updateInfo(tenantUpdateInfo);
repositoryService.UpdateTenantHeaderInfo(tenantUpdateInfo);
}
finally
{
InProcFactory.CloseProxy(repositoryService);
}
}
protected WcfWrapper(S singleton)
{
InProcFactory.SetSingleton(singleton);
Proxy = InProcFactory.CreateInstance <S, I>();
}
public static ITasksDao CreateTasksInstance()
{
return(InProcFactory.CreateInstance <TasksDao, ITasksDao>());
}
private static void DoEverythingSync()
{
var useWcf = true;
IHumanService humanService;
IDogService dogService;
if (useWcf)
{
humanService = InProcFactory.CreateInstance <HumanService, IHumanService>();
dogService = InProcFactory.CreateInstance <DogService, IDogService>();
}
else
{
humanService = new HumanService();
dogService = new DogService();
}
var humanRecord = new List <Human>();
var dogRecord = new List <Dog>();
for (int i = 0; i < 1000; i++)
{
var newHuman = new Human
{
DateOfBirth = DateTime.Today.AddYears(_random.Next(20, 50) * -1),
Forename = _forenames[_random.Next(0, _forenames.Length)],
Surname = _surnames[_random.Next(0, _surnames.Length)]
};
newHuman.Id = humanService.AddHumanSync(newHuman);
humanRecord.Add(newHuman);
}
for (int i = 0; i < 1000; i++)
{
var newDog = new Dog
{
Breed = (DogBreed)_random.Next(1, 3),
DateOfBirth = DateTime.Today.AddYears(_random.Next(3, 12) * -1),
Name = _dognames[_random.Next(0, _dognames.Length)]
};
newDog.Id = dogService.AddDogSync(newDog);
dogRecord.Add(newDog);
}
for (int i = 0; i < 1000; i++)
{
var firstFriendId = _random.Next(0, 999);
dogService.MakeFriendSync(dogRecord[i], dogRecord[firstFriendId]);
var secondFriendId = _random.Next(0, 999);
while (secondFriendId == firstFriendId)
{
secondFriendId = _random.Next(0, 999);
}
dogService.MakeFriendSync(dogRecord[i], dogRecord[secondFriendId]);
}
for (int i = 0; i < 1000; i++)
{
humanService.AdoptDogSync(humanRecord[i], dogRecord[i]);
}
using (var context = EntityFunDbContext.Create())
{
var dogCount = context.Dogs.Count();
Console.WriteLine("There are {0} dogs in the system", dogCount);
var humanCount = context.Humans.Count();
Console.WriteLine("There are {0} humans in the system", humanCount);
var dogFriends = context.Dogs.SelectMany(x => x.Friends).Count();
Console.WriteLine(dogFriends);
var dogsWithManyFriends = context.Dogs.Count(x => x.Friends.Count > 2);
Console.WriteLine("{0} dogs have more than 2 friends", dogsWithManyFriends);
Console.WriteLine("{0} dogs have 0 friends", context.Dogs.Count(x => x.Friends.Count == 0));
}
}
private static async Task DoEverything()
{
var useWcf = true;
IHumanService humanService;
IDogService dogService;
if (useWcf)
{
humanService = InProcFactory.CreateInstance <HumanService, IHumanService>();
dogService = InProcFactory.CreateInstance <DogService, IDogService>();
}
else
{
humanService = new HumanService();
dogService = new DogService();
}
var humanRecord = new List <Human>();
var dogRecord = new List <Dog>();
var numberOfIterations = 100;
var humanAddTasks = Enumerable.Range(0, numberOfIterations)
.Select(async i =>
{
var newHuman = new Human
{
DateOfBirth = DateTime.Today.AddYears(_random.Next(20, 50) * -1),
Forename = _forenames[_random.Next(0, _forenames.Length)],
Surname = _surnames[_random.Next(0, _surnames.Length)]
};
newHuman.Id = await humanService.AddHumanAsync(newHuman);
humanRecord.Add(newHuman);
});
await Task.WhenAll(humanAddTasks);
var dogAddTasks = Enumerable.Range(0, numberOfIterations)
.Select(async i =>
{
var newDog = new Dog
{
Breed = (DogBreed)_random.Next(1, 3),
DateOfBirth = DateTime.Today.AddYears(_random.Next(3, 12) * -1),
Name = _dognames[_random.Next(0, _dognames.Length)]
};
newDog.Id = await dogService.AddDogAsync(newDog);
dogRecord.Add(newDog);
});
await Task.WhenAll(dogAddTasks);
var dogFriendTasks = Enumerable.Range(0, numberOfIterations)
.Select(async i =>
{
var firstFriendId = _random.Next(0, numberOfIterations - 1);
await dogService.MakeFriendAsync(dogRecord[i], dogRecord[firstFriendId]);
var secondFriendId = _random.Next(0, numberOfIterations - 1);
while (secondFriendId == firstFriendId)
{
secondFriendId = _random.Next(0, numberOfIterations - 1);
}
await dogService.MakeFriendAsync(new Dog {
Id = i
}, new Dog {
Id = secondFriendId
});
});
await Task.WhenAll(dogFriendTasks);
var adoptDogTasks = Enumerable.Range(0, numberOfIterations)
.Select(async i =>
{
await humanService.AdoptDogAsync(humanRecord[i], dogRecord[i]);
});
await Task.WhenAll(adoptDogTasks);
using (var context = EntityFunDbContext.Create())
{
var dogCount = context.Dogs.Count();
Console.WriteLine("There are {0} dogs in the system", dogCount);
var humanCount = context.Humans.Count();
Console.WriteLine("There are {0} humans in the system", humanCount);
var dogFriends = context.Dogs.SelectMany(x => x.Friends).Count();
Console.WriteLine("There are {0} dog friend combos", dogFriends);
var dogsWithManyFriends = context.Dogs.Count(x => x.Friends.Count > 2);
Console.WriteLine("{0} dogs have more than 2 friends", dogsWithManyFriends);
Console.WriteLine("{0} dogs have 0 friends", context.Dogs.Count(x => x.Friends.Count == 0));
}
}
protected WcfWrapper()
{
Proxy = InProcFactory.CreateInstance <S, I>();
}
public UserAccountEngine()
{
_UserAccountAccessor = new Lazy <IUserAccountAccessor>(() => InProcFactory.CreateInstance <UserAccountAccessor, IUserAccountAccessor>());
}