public static string GenerateSqlFor(AndCondition condition)
{
var filterExpressions = condition.Conditions.Select(ConditionSqlGenerator.GenerateSqlFor)
.Select(e => $"({e})")
.ToArray();
var filterExpression = string.Join(" AND ", filterExpressions);
return filterExpression;
}
public Task<SubscriptionClient> CreateSubscriptionReceiver(string topicPath, string subscriptionName, IFilterCondition filterCondition)
{
return Task.Run(() =>
{
EnsureSubscriptionExists(topicPath, subscriptionName);
var myOwnSubscriptionFilterCondition = new OrCondition(new MatchCondition(MessagePropertyKeys.RedeliveryToSubscriptionName, subscriptionName),
new IsNullCondition(MessagePropertyKeys.RedeliveryToSubscriptionName));
var combinedCondition = new AndCondition(filterCondition, myOwnSubscriptionFilterCondition);
var filterSql = _sqlFilterExpressionGenerator.GenerateFor(combinedCondition);
return _retry.Do(() =>
{
var subscriptionClient = _messagingFactory()
.CreateSubscriptionClient(topicPath, subscriptionName, ReceiveMode.ReceiveAndDelete);
subscriptionClient.ReplaceFilter("$Default", filterSql);
return subscriptionClient;
},
"Creating subscription receiver for topic " + topicPath + " and subscription " + subscriptionName + " with filter expression " +
filterCondition);
}).ConfigureAwaitFalse();
}
