/// <inheritdoc />
public virtual T SynchroniseGet <T>(IRegistry registry, string key)
{
if (registry != null)
{
IRegistryResolver resolver = RegistryResolvers.TryGetValue(registry, () => new RegistryResolver(registry));
//return resolver.ResolveGetSingle<>()
string[] emptyArrayThrowaway;
T[] result = resolver.ResolveGet <T>(key, out emptyArrayThrowaway);
if (result.Length != 0)
{
return(result[0]);
}
}
foreach (ISynchronisationSource source in Sources)
{
T res;
if (source.TryGet(key, out res))
{
return(res);
}
}
return(default(T));
}
/// <summary>
/// Resolve all registry entries using a given registry resolver.
/// </summary>
/// <param name="registryResolver">The registry resolver to use.</param>
/// <param name="allRegistryEntries">The registry entries to resolve.</param>
/// <param name="resultAllResolvedRegistryEntries">The resulting resolved registry entries.</param>
public static void ResolveAllRequiredRegistry(IRegistryResolver registryResolver, IEnumerable <string> allRegistryEntries, ISet <string> resultAllResolvedRegistryEntries)
{
resultAllResolvedRegistryEntries.Clear();
foreach (string registryEntry in allRegistryEntries)
{
string[] resolvedEntries;
registryResolver.ResolveGet <object>(registryEntry, out resolvedEntries, null);
resultAllResolvedRegistryEntries.AddRange(resolvedEntries);
}
}
/// <inheritdoc />
public override void SubInvoke(IRegistry registry, IRegistryResolver resolver)
{
IComputationHandler handler = Operator.Handler;
string registryEntryToProcess = ParameterRegistry.Get <string>("registry_entry_to_process");
Func <T, IComputationHandler, INumber> metricFunction = ParameterRegistry.Get <Func <T, IComputationHandler, INumber> >("metric_function");
string metricSharedResultIdentifier = ParameterRegistry.Get <string>("metric_shared_result_identifier");
object[] entries = resolver.ResolveGet <object>(registryEntryToProcess);
double totalMetric = 0.0;
int count = 0;
foreach (object entry in entries)
{
T entryAsT = entry as T;
IEnumerable <T> entryAsEnumerable = entry as IEnumerable <T>;
IDictionary <string, T> entryAsDictionary = entry as IDictionary <string, T>;
if (entryAsDictionary != null)
{
entryAsEnumerable = entryAsDictionary.Values;
}
if (entryAsT != null)
{
totalMetric += metricFunction.Invoke(entryAsT, handler).GetValueAs <double>();
count++;
}
else if (entryAsEnumerable != null)
{
foreach (T value in entryAsEnumerable)
{
totalMetric += metricFunction.Invoke(value, handler).GetValueAs <double>();
count++;
}
}
else
{
throw new InvalidOperationException($"Cannot process metric for entry of type {entry.GetType()} with identifier \"{registryEntryToProcess}\", must be {typeof(T)} or enumerable thereof.");
}
}
double resultMetric = totalMetric / count;
resolver.ResolveSet(metricSharedResultIdentifier, resultMetric, addIdentifierIfNotExists: true);
}
/// <summary>
/// Try to retrieve a value from this source (if existent).
/// </summary>
/// <typeparam name="T">The type of the value that will be retrieved.</typeparam>
/// <param name="key">The key of the value.</param>
/// <param name="val">The value itself that will be assigned if it could be retrieved, <c>null</c> otherwise.</param>
/// <returns><c>True</c> if the source could retrieve given key, <c>false</c> otherwise.</returns>
public bool TryGet <T>(string key, out T val)
{
IRegistry values = (IRegistry)ParameterRegistry[ValueIdentifier];
IRegistryResolver resolver = values.Get <IRegistryResolver>(RegistryResolver);
//TODO: validate lock requirement, probably it is required
lock (values)
{
T[] vals = resolver.ResolveGet <T>(key);
if (vals.Length > 0)
{
val = vals[0];
return(true);
}
val = default(T);
return(false);
}
}
/// <summary>
/// Invoke this hook with a certain parameter registry.
/// </summary>
/// <param name="registry">The registry containing the required values for this hook's execution.</param>
/// <param name="resolver">A helper resolver for complex registry entries (automatically cached).</param>
public override void SubInvoke(IRegistry registry, IRegistryResolver resolver)
{
string[] valueIdentifiers = ParameterRegistry.Get <string[]>("value_identifiers");
IDictionary <string, object> valuesByIdentifier = ParameterRegistry.Get <IDictionary <string, object> >("value_buffer");
valuesByIdentifier.Clear();
for (int i = 0; i < valueIdentifiers.Length; i++)
{
string[] resolvedIdentifiers;
object[] values = resolver.ResolveGet <object>(valueIdentifiers[i], out resolvedIdentifiers);
for (int y = 0; y < resolvedIdentifiers.Length; y++)
{
valuesByIdentifier.Add(resolvedIdentifiers[y], values[y]);
}
}
ReportValues(valuesByIdentifier, ParameterRegistry.Get <bool>("report_epoch_iteration"), registry.Get <int>("epoch"), registry.Get <int>("iteration"));
}