/// <summary>
/// Initializes a new instance of the <see cref="XmlTextParser"/> class.
/// </summary>
public XmlTextParser()
{
_facetId = "default";
_userId = "zeus";
_escRegex = new Regex(@"\(==([^)]+)\)");
_sortKeyBuilder = new StandardItemSortKeyBuilder();
}
/// <summary>
/// Initializes a new instance of the <see cref="ItemSeeder"/> class.
/// </summary>
/// <param name="options">The seed options.</param>
/// <exception cref="ArgumentNullException">options</exception>
public ItemSeeder(SeedOptions options)
{
_options = options
?? throw new ArgumentNullException(nameof(options));
_sortKeyBuilder = new StandardItemSortKeyBuilder();
}
/// <summary>
/// Gets the items.
/// </summary>
/// <param name="count">The desired count of items to get.</param>
/// <returns>The items.</returns>
public IEnumerable <IItem> GetItems(int count)
{
if (count < 1 ||
_options.FacetDefinitions == null ||
_options.FacetDefinitions.Length == 0)
{
yield break;
}
// init
if (_options.Seed.HasValue)
{
Randomizer.Seed = new Random(_options.Seed.Value);
}
ItemSeeder itemSeeder = _factory.GetItemSeeder();
_partSeeders = _factory.GetPartSeeders();
IItemSortKeyBuilder sortKeyBuilder = _factory.GetItemSortKeyBuilder();
// generate items
for (int n = 1; n <= count; n++)
{
// pick a facet
FacetDefinition facet = _options.FacetDefinitions[
_options.FacetDefinitions.Length == 1
? 0
: Randomizer.Seed.Next(0, _options.FacetDefinitions.Length)];
// get item
IItem item = itemSeeder.GetItem(n, facet.Id);
// add parts: first non layer parts, then the others.
// This ensures that the item already has the base text part
// before adding the layer parts, which refer to it.
// 1) non-layer parts, required
AddParts(facet.PartDefinitions
.Where(def => !IsLayerPart(def) && def.IsRequired),
item,
false);
// 2) non-layer parts, optional
AddParts(facet.PartDefinitions
.Where(def => !IsLayerPart(def) && !def.IsRequired),
item,
true);
// 3) layer-parts
// we must have a base text definition to have layers
PartDefinition baseTextDef = facet.PartDefinitions.Find(
def => def.RoleId == PartBase.BASE_TEXT_ROLE_ID);
if (baseTextDef != null && Randomizer.Seed.Next(0, 2) == 1)
{
// ensure there is a base text. This is required for
// the text layer part seeder, which must rely on a base text.
IPart baseTextPart = item.Parts.Find(
p => p.TypeId == baseTextDef.TypeId);
// add a base text if none found
if (baseTextPart == null)
{
baseTextPart = GetPart(item, baseTextDef);
if (baseTextPart != null)
{
item.Parts.Add(baseTextPart);
}
}
// once we have one, eventually add layer(s)
if (baseTextPart != null)
{
// 3) layer parts, required
AddParts(facet.PartDefinitions
.Where(def => IsLayerPart(def) && def.IsRequired),
item,
false);
// 4) layer parts, optional
AddParts(facet.PartDefinitions
.Where(def => IsLayerPart(def) && !def.IsRequired),
item,
true);
}
}
// once all the parts are in place, override the item's sort key
// if requested in the config.
// Note that we do not provide a repository, as while seeding
// there might be no database, and all the item's parts are
// in the item itself.
if (sortKeyBuilder != null)
{
item.SortKey = sortKeyBuilder.BuildKey(item, null);
}
yield return(item);
}
}
