//TODO to be tested
public void DeleteMany <T>(Expression <Func <T, bool> > where, string collectionName = null)
{
collectionName ??= typeof(T).Name;
var query = PredicateToQuery(where, collectionName);
var request = new RemoveManyRequest(query);
_childRequests.Add(request);
}
/// <summary>
/// remove all the items matching a query
/// </summary>
/// <param name="query"></param>
/// <returns>number of items effectively removed</returns>
public int RemoveMany(OrQuery query)
{
if (query == null)
{
throw new ArgumentNullException(nameof(query));
}
var request = new RemoveManyRequest(query);
var response = Channel.SendRequest(request);
if (response is ExceptionResponse exResponse)
{
throw new CacheException("Error in RemoveMany", exResponse.Message, exResponse.CallStack);
}
if (!(response is ItemsCountResponse countResponse))
{
throw new CacheException("Invalid type of response received in RemoveMany()");
}
return(countResponse.ItemsCount);
}
public void Split_transaction_request()
{
var schema = TypedSchemaFactory.FromType <Order>();
var requests = new List <DataRequest>();
// simple put requests
for (int i = 0; i < 100; i++)
{
var order1 = new Order {
Id = Guid.NewGuid(), Category = "geek", ProductId = 123, Quantity = 1
};
var putRequest = new PutRequest("orders");
var packed1 = PackedObject.Pack(order1, schema, "orders");
putRequest.Items.Add(packed1);
requests.Add(putRequest);
}
// conditional put requests
for (int i = 0; i < 100; i++)
{
var order1 = new Order {
Id = Guid.NewGuid(), Category = "geek", ProductId = 123, Quantity = 1
};
var putRequest = new PutRequest("orders");
var packed1 = PackedObject.Pack(order1, schema, "orders");
putRequest.Items.Add(packed1);
putRequest.Predicate = ExpressionTreeHelper.PredicateToQuery <Order>(o => o.IsDelivered, "orders");
requests.Add(putRequest);
}
// simple delete requests
for (int i = 0; i < 100; i++)
{
var order1 = new Order {
Id = Guid.NewGuid(), Category = "geek", ProductId = 123, Quantity = 1
};
var packed1 = PackedObject.Pack(order1, schema, "orders1");
var deleteRequest = new RemoveRequest("orders1", packed1.PrimaryKey);
requests.Add(deleteRequest);
}
// delete many request
var deleteMany = new RemoveManyRequest(ExpressionTreeHelper.PredicateToQuery <Order>(o => o.IsDelivered, "orders"));
requests.Add(deleteMany);
var transactionRequest = new TransactionRequest(requests)
{
TransactionId = Guid.NewGuid()
};
var split = transactionRequest.SplitByServer(k => k.GetHashCode() % 5, 5);
var total = split.Values.Sum(r => r.ChildRequests.Count);
// 300 uniformly distributed + 5 (delete many) cloned on each server
Assert.AreEqual(305, total);
Assert.IsTrue(split.Values.All(s => s.TransactionId == transactionRequest.TransactionId));
var tr0 = split[0];
Assert.IsTrue(tr0.ConditionalRequests.All(r => r.HasCondition));
Assert.IsTrue(tr0.ConditionalRequests.Any());
var deleteManyCount = tr0.ChildRequests.Count(r => r is RemoveManyRequest);
Assert.AreEqual(1, deleteManyCount);
Assert.AreEqual(2, tr0.AllCollections.Length);// orders and orders1
}
