public async Task <ConsulState> GetDependenciesAsync(ConsulDependencies dependencies)
{
var serviceTasks = dependencies.Services.Select(GetServiceAsync).ToArray();
var keyTasks = dependencies.Keys.Select(GetKeyAsync).ToArray();
var keyRecursiveTasks = dependencies.KeyPrefixes.Select(GetKeyRecursiveAsync).ToArray();
await Task.WhenAll(serviceTasks.Cast <Task>().Concat(keyTasks).Concat(keyRecursiveTasks)).ConfigureAwait(false);
var services = serviceTasks.Select(t => t.Result)
.Where(s => s != null)
.ToImmutableDictionary(s => s.Name);
var keys = new KeyValueStore(keyTasks
.Select(t => t.Result)
.Where(k => k != null)
.Concat(keyRecursiveTasks.SelectMany(t => t.Result)));
var missingKeyPrefixes = dependencies.KeyPrefixes
.Where(prefix => !keys.ContainsKeyStartingWith(prefix))
.ToImmutableHashSet();
return(new ConsulState(services, keys, missingKeyPrefixes));
}
public bool TryUpdate(IEnumerable <KeyValueNode> kvNodes, out KeyValueStore updatedStore)
{
bool atLeastOneUpdate = false;
var leaves = _leaves;
foreach (var kvNode in kvNodes)
{
if (leaves.TryGetValue(kvNode.FullKey, out var existingNode) && existingNode.Equals(kvNode))
{
continue;
}
atLeastOneUpdate = true;
leaves = leaves.SetItem(kvNode.FullKey, kvNode);
}
if (atLeastOneUpdate)
{
updatedStore = new KeyValueStore(leaves);
return(true);
}
updatedStore = null;
return(false);
}
