public long CreateSubscription(SubscriptionCriteria criteria)
{
long id = -1;
Database.TransactionalStorage.Batch(accessor =>
{
id = accessor.General.GetNextIdentityValue(Constants.RavenSubscriptionsPrefix);
var config = new SubscriptionConfig
{
SubscriptionId = id,
Criteria = criteria,
AckEtag = criteria.StartEtag ?? Etag.Empty,
};
SaveSubscriptionConfig(id, config);
});
return id;
}
private static bool MatchCriteria(SubscriptionCriteria criteria, JsonDocument doc)
{
if (criteria.BelongsToAnyCollection != null &&
criteria.BelongsToAnyCollection.Contains(doc.Metadata.Value<string>(Constants.RavenEntityName), StringComparer.InvariantCultureIgnoreCase) == false)
return false;
if (criteria.KeyStartsWith != null && doc.Key.StartsWith(criteria.KeyStartsWith) == false)
return false;
if (criteria.PropertiesMatch != null)
{
foreach (var match in criteria.PropertiesMatch)
{
var tokens = doc.DataAsJson.SelectTokenWithRavenSyntaxReturningFlatStructure(match.Key).Select(x => x.Item1).ToArray();
foreach (var curVal in tokens)
{
if (RavenJToken.DeepEquals(curVal, match.Value) == false)
return false;
}
if (tokens.Length == 0)
return false;
}
}
if (criteria.PropertiesNotMatch != null)
{
foreach (var match in criteria.PropertiesNotMatch)
{
var tokens = doc.DataAsJson.SelectTokenWithRavenSyntaxReturningFlatStructure(match.Key).Select(x => x.Item1).ToArray();
foreach (var curVal in tokens)
{
if (RavenJToken.DeepEquals(curVal, match.Value) == true)
return false;
}
}
}
return true;
}
public async Task StronglyTypedDataSubscriptions()
{
using (var store = NewDocumentStore())
{
using (var session = store.OpenSession())
{
for (int i = 0; i < 10; i++)
{
session.Store(new PersonWithAddress()
{
Name = "James",
Address = new Address()
{
ZipCode = 12345
}
});
session.Store(new PersonWithAddress()
{
Name = "James",
Address = new Address()
{
ZipCode = 54321
}
});
session.Store(new PersonWithAddress()
{
Name = "David",
Address = new Address()
{
ZipCode = 12345
}
});
session.Store(new Person());
}
session.SaveChanges();
}
var criteria = new SubscriptionCriteria<PersonWithAddress>();
criteria.PropertyMatch(x => x.Name, "James");
criteria.PropertyNotMatch(x => x.Address.ZipCode, 54321);
var id = await store.AsyncSubscriptions.CreateAsync(criteria);
var subscription = await store.AsyncSubscriptions.OpenAsync<PersonWithAddress>(id, new SubscriptionConnectionOptions());
var users = new List<PersonWithAddress>();
subscription.Subscribe(users.Add);
Assert.True(SpinWait.SpinUntil(() => users.Count >= 10, TimeSpan.FromSeconds(60)));
Assert.Equal(10, users.Count);
foreach (var user in users)
{
Assert.Equal("James", user.Name);
Assert.Equal(12345, user.Address.ZipCode);
}
}
}
private static bool MatchCriteria(SubscriptionCriteria criteria, JsonDocument doc)
{
if (criteria.BelongsToAnyCollection != null &&
criteria.BelongsToAnyCollection.Contains(doc.Metadata.Value<string>(Constants.RavenEntityName), StringComparer.InvariantCultureIgnoreCase) == false)
return false;
if (criteria.KeyStartsWith != null && doc.Key.StartsWith(criteria.KeyStartsWith) == false)
return false;
if (criteria.PropertiesMatch != null)
{
foreach (var match in criteria.PropertiesMatch)
{
var value = doc.DataAsJson.SelectToken(match.Key);
if (value == null)
return false;
if (RavenJToken.DeepEquals(value, match.Value) == false)
return false;
}
}
if (criteria.PropertiesNotMatch != null)
{
foreach (var notMatch in criteria.PropertiesNotMatch)
{
var value = doc.DataAsJson.SelectToken(notMatch.Key);
if (value != null)
{
if (RavenJToken.DeepEquals(value, notMatch.Value))
return false;
}
}
}
return true;
}
