public InformationArtifact NextSelection()
{
if (ContentList.Count != 0)
{
double probability = random.NextDouble();
int limit = ContentList.Count;
for (int i = 0; i < ContentList.Count; i++)
{
if (probability > ContentList[i].Probability)
limit = i+1;
}
int pos = random.Next(limit);
if (CurIA != null)
PreviouslyViewed.Add(CurIA);
CurIA = ContentList[pos];
return ContentList[pos];
}
else
return null;
}
public void UpdateArtifacts(GroupManager GM)
{
// first step is adding all the possible Content to an unsorted list
// checking for duplicates as well
if (GM.ChangeInGroups)
{
ContentList = new List<InformationArtifact>();
}
foreach (Group group in GM.Groups)
{
String SQL = String.Format("SELECT ArtifactID FROM GroupArtifact WHERE GroupID = {0};", group.GroupID);
try
{
DataTable DT = OcDBLink.getDataTable(SQL);
for (int x = 0; x < DT.Rows.Count; x++)
{
DataRow curRow = DT.Rows[x];
String ArtifactID = curRow.ItemArray[0].ToString();
InformationArtifact temp = new InformationArtifact(int.Parse(ArtifactID));
if (temp.Type.Equals("Message"))
{
AddToContent(group,temp, InfoBytes);
}
else
{
AddToContent(group,temp, ContentList);
}
}
}
catch { }
}
// next step is to get all the variables that are needed ready
int totalWeights = 0;
foreach (InformationArtifact IA in ContentList)
{
totalWeights += IA.Prepare(PreviouslyViewed);
}
foreach (InformationArtifact IA in ContentList)
{
IA.DetermineProbability(totalWeights);
}
ContentList.Sort();
totalWeights = 0;
foreach (InformationArtifact IA in InfoBytes)
{
totalWeights += IA.Prepare();
}
foreach (InformationArtifact IA in InfoBytes)
{
IA.DetermineProbability(totalWeights);
}
InfoBytes.Sort();
Messages = new List<String>();
foreach (InformationArtifact IA in InfoBytes)
{
Messages.Add(IA.Message);
}
}
private void AddToContent(Group group, InformationArtifact temp, List<InformationArtifact> list)
{
Boolean found = false;
foreach (InformationArtifact IA in list)
{
if (temp.ArtifactID.Equals(IA.ArtifactID))
{
found = true;
IA.AddGroup(group);
break;
}
}
if (!found)
{
temp.AddGroup(group);
list.Add(temp);
}
}