/// <summary>
/// Executes the request asynchronously.
/// </summary>
/// <returns> The async task with the request result.</returns>
public override async Task <KinveyDeleteResponse> ExecuteAsync()
{
var kdr = default(KinveyDeleteResponse);
switch (Policy)
{
case WritePolicy.FORCE_LOCAL:
// sync
if (_query == null)
{
// cache
kdr = Cache.DeleteByID(entityID);
var request = Client.NetworkFactory.buildDeleteRequest <KinveyDeleteResponse>(Collection, entityID);
var pendingAction = PendingWriteAction.buildFromRequest(request);
SyncQueue.Enqueue(pendingAction);
}
else
{
// cache
kdr = Cache.DeleteByQuery(_query);
foreach (var id in kdr.IDs)
{
var request = Client.NetworkFactory.buildDeleteRequest <KinveyDeleteResponse>(Collection, id);
var pendingAction = PendingWriteAction.buildFromRequest(request);
SyncQueue.Enqueue(pendingAction);
}
}
break;
case WritePolicy.FORCE_NETWORK:
// network
if (_query == null)
{
kdr = await Client.NetworkFactory.buildDeleteRequest <KinveyDeleteResponse>(Collection, entityID).ExecuteAsync().ConfigureAwait(false);
}
else
{
var mongoQuery = KinveyMongoQueryBuilder.GetQueryForRemoveOperation <T>(_query);
kdr = await Client.NetworkFactory.buildDeleteRequestWithQuery <KinveyDeleteResponse>(Collection, mongoQuery).ExecuteAsync().ConfigureAwait(false);
}
break;
case WritePolicy.NETWORK_THEN_LOCAL:
if (_query == null)
{
// cache
kdr = Cache.DeleteByID(entityID);
// network
kdr = await Client.NetworkFactory.buildDeleteRequest <KinveyDeleteResponse>(Collection, entityID).ExecuteAsync().ConfigureAwait(false);
}
else
{
// cache
kdr = Cache.DeleteByQuery(_query);
// network
var mongoQuery = KinveyMongoQueryBuilder.GetQueryForRemoveOperation <T>(_query);
kdr = await Client.NetworkFactory.buildDeleteRequestWithQuery <KinveyDeleteResponse>(Collection, mongoQuery).ExecuteAsync().ConfigureAwait(false);
}
break;
case WritePolicy.LOCAL_THEN_NETWORK:
if (_query == null)
{
// cache
kdr = Cache.DeleteByID(entityID);
var deleteRequest = Client.NetworkFactory.buildDeleteRequest <KinveyDeleteResponse>(Collection, entityID);
KinveyException kinveyException = null;
Exception exception = null;
try
{
// network
kdr = await deleteRequest.ExecuteAsync().ConfigureAwait(false);
}
catch (KinveyException kinveyEx)
{
kinveyException = kinveyEx;
}
catch (Exception ex)
{
exception = ex;
}
if (kinveyException != null || exception != null)
{
var pendingAction = PendingWriteAction.buildFromRequest(deleteRequest);
SyncQueue.Enqueue(pendingAction);
if (kinveyException != null)
{
throw kinveyException;
}
}
}
else
{
// cache
kdr = Cache.DeleteByQuery(_query);
// network
KinveyException kinveyException = null;
Exception exception = null;
try
{
var mongoQuery = KinveyMongoQueryBuilder.GetQueryForRemoveOperation <T>(_query);
kdr = await Client.NetworkFactory.buildDeleteRequestWithQuery <KinveyDeleteResponse>(Collection, mongoQuery).ExecuteAsync().ConfigureAwait(false);
}
catch (KinveyException kinveyEx)
{
kinveyException = kinveyEx;
}
catch (Exception ex)
{
exception = ex;
}
if (kinveyException != null || exception != null)
{
foreach (var id in kdr.IDs)
{
var request = Client.NetworkFactory.buildDeleteRequest <KinveyDeleteResponse>(Collection, id);
var pendingAction = PendingWriteAction.buildFromRequest(request);
SyncQueue.Enqueue(pendingAction);
}
if (kinveyException != null)
{
throw kinveyException;
}
}
}
break;
default:
throw new KinveyException(EnumErrorCategory.ERROR_GENERAL, EnumErrorCode.ERROR_GENERAL, "Invalid write policy");
}
return(kdr);
}
