/// <summary>
/// Lookup/create a key set for a single key scheme.
/// </summary>
/// <param name="scheme"></param>
/// <returns></returns>
private DualKeySet NewKeysetFor(DualKeyScheme scheme)
{
IKeySet keys;
if (!keySets.TryGetValue(scheme, out keys))
{
keys = new DualKeySet();
keySets.Add(scheme, keys);
}
return (DualKeySet)keys;
}
/// <summary>
/// Remove a key for dual key scheme.
/// </summary>
/// <param name="scheme">The key scheme.</param>
/// <param name="subset">The key subset (PRODUCER or CONSUMER) to remove the key from.</param>
/// <param name="key">The key to remove.</param>
public virtual void Remove(DualKeyScheme scheme,
DualKeyScheme.Subset subset,
Key key)
{
IKeySet keySet;
if (keySets.TryGetValue(scheme, out keySet))
{
((DualKeySet)keySet).KeysFor(subset).Remove(key);
if (keySet.IsEmpty)
keySets.Remove(scheme);
}
}
/// <summary>
/// Add a key for dual key scheme.
/// </summary>
/// <param name="scheme">The key scheme.</param>
/// <param name="subset">The key subset (PRODUCER or CONSUMER) to add the key to. </param>
/// <param name="key"> The key to add.</param>
public virtual void Add(DualKeyScheme scheme,
DualKeyScheme.Subset subset, Key key)
{
NewKeysetFor(scheme).KeysFor(subset).Add(key);
}
/// <summary>
/// Get the key set for a dual scheme. This set should not be modified.
/// </summary>
/// <param name="scheme">The scheme.</param>
/// <returns>The key set for the scheme. Will be empty if no keys are defined for the scheme.</returns>
public DualKeySet KeysetFor(DualKeyScheme scheme)
{
IKeySet keys;
if (!keySets.TryGetValue(scheme, out keys))
return EmptyDualKeyset;
else
return (DualKeySet)keys;
}
/// <summary>
/// Get the keys for a producer or consumer.
/// </summary>
/// <param name="subset"></param>
/// <returns></returns>
public HashSet<Key> KeysFor(DualKeyScheme.Subset subset)
{
if (subset == DualKeyScheme.Subset.Producer)
return ProducerKeys;
else
return ConsumerKeys;
}