/// <summary>
/// Create label-ns mapping
/// hash of label as key, 'bitvector' of ns as value.
/// </summary>
/// <param name="namespaces">all namespaces.</param>
/// <returns>label-ns mapping.</returns>
public static Zen <IDictionary <int, IList <bool> > > CreateNSLabelMatrix(Zen <Namespace>[] namespaces)
{
var n = namespaces.Length;
Dictionary <int, bool[]> labelHash = new Dictionary <int, bool[]>();
for (int i = 0; i < n; ++i)
{
var keys = namespaces[i].GetLabelKeys();
var k = keys.Length();
// iterate over Zen<List> to traverse all keys
for (k -= 1; !k.EqualToNumber(ushort.MaxValue); k -= 1)
{
var keyHash = keys.At(k).Value().GetHashCode();
if (!labelHash.ContainsKey(keyHash))
{
labelHash[keyHash] = new bool[n];
}
labelHash[keyHash][i] = true;
}
}
// create zen data.
Zen <IDictionary <int, IList <bool> > > mx = Language.EmptyDict <int, IList <bool> >();
foreach (var kv in labelHash)
{
mx = mx.Add(kv.Key, kv.Value);
}
return(mx);
}
/// <summary>
/// Create user-pod mapping
/// hash of user as key, 'bitvector' of pods as value
/// assuming all pods have the user label.
/// </summary>
/// <param name="pods">all pods.</param>
/// <param name="userKey">key of 'user label'.</param>
/// <returns>user-pod mapping.</returns>
public static Zen <IDictionary <int, IList <bool> > > GetUserHash(Zen <Pod>[] pods, Zen <string> userKey)
{
var n = pods.Length;
Dictionary <int, bool[]> originalData = new Dictionary <int, bool[]>();
for (int i = 0; i < n; ++i)
{
var labelValue = pods[i].LabelValue(userKey);
if (labelValue == null)
{
continue;
}
var hash = labelValue.GetHashCode();
if (!originalData.ContainsKey(hash))
{
originalData[hash] = new bool[n];
}
originalData[hash][i] = true;
}
// create zen data.
Zen <IDictionary <int, IList <bool> > > userHashMap = EmptyDict <int, IList <bool> >();
foreach (var kv in originalData)
{
userHashMap = userHashMap.Add(kv.Key, kv.Value);
}
return(userHashMap);
}
/// <summary>
/// Create namespace-pod mapping
/// hash of namespace as key, 'bitvector' of pods as value.
/// </summary>
/// <param name="pods">all pods.</param>
/// <returns>namespace-pod mapping.</returns>
public static Zen <IDictionary <int, IList <bool> > > CreateNSMatrix(Zen <Pod>[] pods)
{
var n = pods.Length;
// create original data.
Dictionary <int, bool[]> originalData = new Dictionary <int, bool[]>();
for (int i = 0; i < n; ++i)
{
var ns = pods[i].GetNS();
var hash = ns.GetHashCode();
if (!originalData.ContainsKey(hash))
{
originalData[hash] = new bool[n];
}
originalData[hash][i] = true;
}
// create zen data.
Zen <IDictionary <int, IList <bool> > > nsMap = Language.EmptyDict <int, IList <bool> >();
foreach (var kv in originalData)
{
nsMap = nsMap.Add(kv.Key, kv.Value);
}
return(nsMap);
}