public async Task UpsertMetadataAsync(EventMetadata metadata)
{
_ = metadata ?? throw new ArgumentNullException(nameof(metadata));
try
{
if (State.Metadata != null && metadata.ResourceUriString != this.GetPrimaryKeyString())
{
throw new ResourceIdentityMismatchException("Metadata resource mismatch.");
}
State.Metadata = metadata;
ISigmaAlgebra resourceList = GrainFactory.GetGrain <ISigmaAlgebra>("resourcelist");
await resourceList.AddAsync(metadata.ResourceUriString);
await WriteStateAsync();
}
catch (Exception ex)
{
await logger?.LogErrorAsync(ex, $"Pi-system UpdateMetadataAsync '{metadata.ResourceUriString}'");
await NotifyErrorAsync(ex);
throw;
}
}
public async Task ClearAsync()
{
try
{
foreach (ISubscription item in State.Subscriptions.Values)
{
string id = await item.GetIdAsync();
if (id != null)
{
await UnsubscribeAsync(id);
}
}
if (State.Metadata != null)
{
ISigmaAlgebra resourceList = GrainFactory.GetGrain <ISigmaAlgebra>("resourcelist");
await resourceList.RemoveAsync(State.Metadata.ResourceUriString);
}
await ClearStateAsync();
}
catch (Exception ex)
{
await logger?.LogErrorAsync(ex, "Pi-system clear.");
await NotifyErrorAsync(ex);
throw;
}
}
public async Task ClearAsync()
{
foreach (ISubscription item in State.Subscriptions.Values)
{
string id = await item.GetIdAsync();
if (id != null)
{
await UnsubscribeAsync(id);
}
}
if (State.Metadata != null)
{
ISigmaAlgebra resourceList = GrainFactory.GetGrain <ISigmaAlgebra>("resourcelist");
await resourceList.RemoveAsync(State.Metadata.ResourceUriString);
}
await ClearStateAsync();
}
public async Task UpsertMetadataAsync(EventMetadata metadata)
{
if (metadata == null)
{
throw new ArgumentNullException("metadata");
}
if (State.Metadata != null && metadata.ResourceUriString != this.GetPrimaryKeyString())
{
Trace.TraceWarning("Resource metadata identifier mismatch failed for resource metadata upsert.");
Exception ex = new ResourceIdentityMismatchException(String.Format("Resource metadata {0} does not match grain identity {1}", State.Metadata.ResourceUriString, this.GetPrimaryKeyString()));
await NotifyErrorAsync(ex);
throw ex;
}
State.Metadata = metadata;
ISigmaAlgebra resourceList = GrainFactory.GetGrain <ISigmaAlgebra>("resourcelist");
await resourceList.AddAsync(metadata.ResourceUriString);
await WriteStateAsync();
}
/// <summary>
/// Returns of list of resources in Orleans.
/// </summary>
/// <returns>Array of resource URIs.</returns>
public async Task <List <string> > GetSigmaAlgebraAsync()
{
ISigmaAlgebra resourceList = client.GetGrain <ISigmaAlgebra>("resourcelist");
return(await resourceList.GetListAsync());
}
public async Task <ListContinuationToken> GetSigmaAlgebraAsync(ListContinuationToken token)
{
ISigmaAlgebra resourceList = client.GetGrain <ISigmaAlgebra>("resourcelist");
return(await resourceList.GetListAsync(token));
}