/// <summary>
/// Imports name data from <paramref name="source"/>.
/// </summary>
/// <param name="source">
/// The data source to import name data from.
/// </param>
public void Import(INameImportSource source)
{
this.InitContext();
// read from the input source until that's no longer possible
while (source.Read())
{
// try to load the field values from the current row
String nameStr = this.GetField(source, NameProperty.Name);
String maleOccsStr = this.GetField(source, NameProperty.MaleOccurrences);
String femaleOccsStr = this.GetField(source, NameProperty.FemaleOccurrences);
String yearStr = this.GetField(source, NameProperty.Year);
String surnameStr = this.GetField(source, NameProperty.Surname);
// set some default values
Int32 year = this.DefaultYear;
Int64 maleOccs = 0;
Int64 femaleOccs = 0;
// try to parse field data, if available
if (!String.IsNullOrWhiteSpace(maleOccsStr))
{
maleOccs = Int64.Parse(maleOccsStr, NumberStyles.AllowThousands);
}
if (!String.IsNullOrWhiteSpace(femaleOccsStr))
{
femaleOccs = Int64.Parse(femaleOccsStr, NumberStyles.AllowThousands);
}
if (!String.IsNullOrWhiteSpace(yearStr))
{
year = Convert.ToInt32(yearStr);
}
if (!String.IsNullOrWhiteSpace(surnameStr))
{
surnameStr = surnameStr.Trim();
if (this.onProcessing != null)
{
this.onProcessing(this.entries, surnameStr);
}
// try to find an existing entry for this name in the database
Name name = this.FindOrCreateName(surnameStr);
NameUsage familyUsage = name.UsageFor(this.Culture, true);
if (familyUsage == null)
{
familyUsage = new NameUsage(this.Culture, Sex.NotApplicable);
familyUsage.FamilyName = true;
familyUsage.NameID = name.ID;
familyUsage.Name = name;
name.Usage.Add(familyUsage);
this.context.Usage.Add(familyUsage);
this.Commit();
}
}
if (!String.IsNullOrWhiteSpace(nameStr))
{
nameStr = nameStr.Trim();
if (this.onProcessing != null)
{
this.onProcessing(this.entries, nameStr);
}
// try to find an existing entry for this name in the database
Name name = this.FindOrCreateName(nameStr);
// add usage and frequency data for the current name
if (maleOccs > 0)
{
this.AddFrequency(name, Sex.Male, year, maleOccs);
}
if (femaleOccs > 0)
{
this.AddFrequency(name, Sex.Female, year, femaleOccs);
}
// update the static probabilities for the current name
foreach (NameUsage usage in name.Usage)
{
usage.RecalculateProbability();
}
entries++;
}
}
// save all remaining changes
context.SaveChanges();
context.Dispose();
context = null;
}