protected AbstractCompositeDataProvider(string databaseName, [NotNull] params DataProvider[] providers)
{
Assert.ArgumentNotNull(providers, nameof(providers));
DatabaseName = databaseName;
_ReadOnlyProviders.AddRange(providers.OfType <ReadOnlyDataProvider>());
_HeadProvider = providers.Single(x => !(x is ReadOnlyDataProvider));
_HeadProviderEx = (IDataProviderEx)HeadProvider;
}
public void AddDataProvider([NotNull] DataProvider dataProvider)
{
Assert.ArgumentNotNull(dataProvider, nameof(dataProvider));
lock (_ReadOnlyProviders)
{
var readOnlyDataProvider = dataProvider as ReadOnlyDataProvider;
if (readOnlyDataProvider == null)
{
Assert.IsNull(_HeadProvider, "The head provider is already defined");
Log.Info($"Add [{DatabaseName}] HEAD data provider: {dataProvider.GetType().FullName}", this);
_HeadProvider = dataProvider;
_HeadProviderEx = (IDataProviderEx)dataProvider;
}
else
{
Log.Info($"Add [{DatabaseName}] read-only data provider: {dataProvider.GetType().FullName}", this);
_ReadOnlyProviders.Add(readOnlyDataProvider);
}
}
}
