public static IEnumerable <IDataProvider> LoadLocalDataProviders(DataProvidersConfigurationSection section, Type interfaceType)
{
return(GetAvailableDataProviderTypes(section, interfaceType, false)
.Select(
t => Reflection.CreateInstance <IDataProvider>(t)
));
}
public static IEnumerable <Type> GetAvailableDataProviderTypes(DataProvidersConfigurationSection section, Type interfaceType, bool isExternal)
{
if (interfaceType == null)
{
interfaceType = typeof(IDataProvider);
}
if (section != null)
{
try
{
var typesConfigurationElements = new TypeElement[section.Types.Count];
section.Types.CopyTo(typesConfigurationElements, 0);
return(typesConfigurationElements
.Select(typeConfigElement =>
{
try
{
string typeName = typeConfigElement.TypeName;
Type t = Type.GetType(typeName);
if (interfaceType.IsAssignableFrom(t))
{
if (t.IsClass && !t.IsAbstract && typeof(IDataProvider).IsAssignableFrom(t))
{
if (isExternal && typeof(IExternalDataProvider).IsAssignableFrom(t))
{
return t;
}
else if (!isExternal && !typeof(IExternalDataProvider).IsAssignableFrom(t))
{
return t;
}
}
}
}
catch (System.Reflection.ReflectionTypeLoadException ex)
{
Local.Admin.LogException(ex, ex.LoaderExceptions);
}
catch (Exception ex)
{
Local.Admin.LogException(ex);
}
return null;
})
.Where(t => t != null));
}
catch (Exception ex)
{
Local.Admin.LogException(ex);
}
}
return(new Type[0]);
}
public IEnumerable <TInterface> CreateDataProviders(SourceUsageOrder sourceUsageOrder)
{
DataProvidersConfigurationSection section = DataProvidersConfigurationSection.GetCurrent();
DataProvider[] dbProviders = DataProviderManager.ReadDatabaseDataProviders();
var dataProviders = DataProviderManager.GetDataProviderList(section, dbProviders, typeof(TInterface), sourceUsageOrder)
.Select(p => p as TInterface);
return(dataProviders);
}
public StandardReturType CreateDataProviders(out IEnumerable <ISingleDataProvider <TInputElement, TOutputElement> > dataProviders, SourceUsageOrder sourceUsageOrder)
{
DataProvidersConfigurationSection section = DataProvidersConfigurationSection.GetCurrent();
DataProvider[] dbProviders = DataProviderManager.ReadDatabaseDataProviders();
dataProviders = DataProviderManager.GetDataProviderList(section, dbProviders, InterfaceType, sourceUsageOrder)
.Select(p => p as ISingleDataProvider <TInputElement, TOutputElement>);
if (dataProviders.FirstOrDefault() == null)
{
Local.Admin.AddNewLog(TraceEventType.Warning, BrokerContext.Current.WebMethodMessageName, TextMessages.NoDataProvidersFound, null, null);
return(StandardReturType.Create(HttpErrorCode.DATASOURCE_UNAVAILABLE));
}
return(StandardReturType.OK());
}
public virtual SubMethodRunState[] CreateSubMethodRunStates(out bool missingDataProvidersExist)
{
DataProvidersConfigurationSection section = DataProvidersConfigurationSection.GetCurrent();
DataProvider[] dbProviders = DataProviderManager.ReadDatabaseDataProviders();
var subMethodRunStates = this.SubMethodInfos
.Select(mi => new SubMethodRunState()
{
SubMethodInfo = mi,
DataProviders = mi.GetDataProviderList(section, dbProviders)
})
.ToArray();
// Now check that each method call info either has at least one clearData provider implementation or can be safely ignored.
missingDataProvidersExist = subMethodRunStates.Where(mi => mi.SubMethodInfo.FailIfNoDataProvider && mi.DataProviders.FirstOrDefault() == null).FirstOrDefault() != null;
return(subMethodRunStates);
}
public static IEnumerable <IDataProvider> GetDataProviderList(DataProvidersConfigurationSection section, DataProvider[] dbProviders, Type interfaceType, SourceUsageOrder localOption)
{
switch (localOption)
{
case SourceUsageOrder.ExternalOnly:
return(LoadExternalDataProviders(dbProviders, interfaceType));
case SourceUsageOrder.LocalOnly:
return(LoadLocalDataProviders(section, interfaceType));
case SourceUsageOrder.LocalThenExternal:
return(LoadLocalDataProviders(section, interfaceType)
.Concat(
LoadExternalDataProviders(dbProviders, interfaceType)
));
default:
return(new IDataProvider[0]);
}
}
public abstract IEnumerable <IDataProvider> GetDataProviderList(DataProvidersConfigurationSection section, DataProvider[] dbProviders);
public static IEnumerable <Type> GetAvailableDataProviderTypes(Type interfaceType, bool isExternal)
{
return(GetAvailableDataProviderTypes(DataProvidersConfigurationSection.GetCurrent(), interfaceType, isExternal));
}
