protected virtual object CreateEntity(object sourceEntity, Type type, List<object> includes=null)
{
IComponent component = sourceEntity as IComponent;
Dictionary<string, string> entityData;
if (component == null && sourceEntity is IComponentPresentation)
{
var cp = (IComponentPresentation)sourceEntity;
component = cp.Component;
entityData = GetEntityData(cp);
}
else
{
entityData = GetEntityData(component);
}
if (component != null)
{
// get schema item id from tcmuri -> tcm:1-2-8
string[] uriParts = component.Schema.Id.Split('-');
long schemaId = Convert.ToInt64(uriParts[1]);
MappingData mapData = new MappingData {SemanticSchema = SemanticMapping.GetSchema(schemaId.ToString(CultureInfo.InvariantCulture))};
// get schema entity names (indexed by vocabulary)
mapData.EntityNames = mapData.SemanticSchema!=null ? mapData.SemanticSchema.GetEntityNames() : null;
//TODO may need to merge with vocabs from embedded types
mapData.TargetEntitiesByPrefix = GetEntityDataFromType(type);
mapData.Content = component.Fields;
mapData.Meta = component.MetadataFields;
mapData.TargetType = type;
mapData.SourceEntity = component;
var model = CreateModelFromMapData(mapData);
if (model is IEntity)
{
((IEntity)model).EntityData = entityData;
((IEntity)model).Id = component.Id.Split('-')[1];
}
if (model is MediaItem && component.Multimedia != null && component.Multimedia.Url != null)
{
((MediaItem)model).Url = component.Multimedia.Url;
((MediaItem)model).FileName= component.Multimedia.FileName;
((MediaItem)model).FileSize = component.Multimedia.Size;
((MediaItem)model).MimeType = component.Multimedia.MimeType;
}
return model;
}
return null;
}
private object GetMultiEmbedded(IField field, Type propertyType, bool multival, MappingData mapData)
{
MappingData embedMapData = new MappingData
{
TargetType = propertyType,
Meta = null,
EntityNames = mapData.EntityNames,
ParentDefaultPrefix = mapData.ParentDefaultPrefix,
TargetEntitiesByPrefix = mapData.TargetEntitiesByPrefix,
SemanticSchema = mapData.SemanticSchema,
EmbedLevel = mapData.EmbedLevel + 1
};
//This is a bit weird, but necessary as we cannot return List<object>, we need to get the right type
var result = (IList)typeof(List<>).MakeGenericType(propertyType).GetConstructor(Type.EmptyTypes).Invoke(null);
foreach (IFieldSet fields in field.EmbeddedValues)
{
embedMapData.Content = fields;
var model = CreateModelFromMapData(embedMapData);
if (model != null)
{
result.Add(model);
}
}
return result.Count == 0 ? null : (multival ? result : result[0]);
}
private object GetFieldValues(IField field, Type propertyType, bool multival, MappingData mapData)
{
switch (field.FieldType)
{
case (FieldType.Date):
return GetDates(field, propertyType, multival);
case (FieldType.Number):
return GetNumbers(field, propertyType, multival);
case (FieldType.MultiMediaLink):
return GetMultiMediaLinks(field, propertyType, multival);
case (FieldType.ComponentLink):
return GetMultiComponentLinks(field, propertyType, multival);
case (FieldType.Embedded):
return GetMultiEmbedded(field, propertyType, multival, mapData);
case (FieldType.Keyword):
return GetMultiKeywords(field, propertyType, multival);
case (FieldType.Xhtml):
return GetMultiLineStrings(field, propertyType, multival);
default:
return GetStrings(field, propertyType, multival);
}
}
private static IField GetFieldFromSemantics(MappingData mapData, SemanticProperty info)
{
var entityData = GetEntityData(info.Prefix, mapData.TargetEntitiesByPrefix, mapData.ParentDefaultPrefix);
if (entityData != null)
{
// determine field semantics
var vocab = entityData.Value.Key;
string prefix = SemanticMapping.GetPrefix(vocab);
if (prefix != null && mapData.EntityNames!=null)
{
string property = info.PropertyName;
string entity = mapData.EntityNames[vocab].FirstOrDefault();
if (entity != null && mapData.SemanticSchema!=null)
{
FieldSemantics fieldSemantics = new FieldSemantics(prefix, entity, property);
// locate semantic schema field
SemanticSchemaField matchingField = mapData.SemanticSchema.FindFieldBySemantics(fieldSemantics);
if (matchingField != null)
{
return ExtractMatchedField(matchingField, (matchingField.IsMetadata && mapData.Meta!=null) ? mapData.Meta : mapData.Content, mapData.EmbedLevel);
}
}
}
}
return null;
}
protected virtual Dictionary<string, List<SemanticProperty>> FilterPropertySematicsByEntity(Dictionary<string, List<SemanticProperty>> semantics, MappingData mapData)
{
Dictionary<string, List<SemanticProperty>> filtered = new Dictionary<string, List<SemanticProperty>>();
foreach (var item in semantics)
{
filtered.Add(item.Key, new List<SemanticProperty>());
List<SemanticProperty> defaultProperties = new List<SemanticProperty>();
foreach (var prop in item.Value)
{
//Default prefix is always OK, but should be added last
if (String.IsNullOrEmpty(prop.Prefix))
{
defaultProperties.Add(prop);
}
else
{
//Filter out any properties belonging to other entities than the source entity
var entityData = GetEntityData(prop.Prefix, mapData.TargetEntitiesByPrefix, mapData.ParentDefaultPrefix);
if (entityData != null && mapData.EntityNames!=null)
{
if (mapData.EntityNames.Contains(entityData.Value.Key))
{
if (mapData.EntityNames[entityData.Value.Key].First() == entityData.Value.Value)
{
filtered[item.Key].Add(prop);
}
}
}
}
}
filtered[item.Key].AddRange(defaultProperties);
}
return filtered;
}
protected virtual object CreateModelFromMapData(MappingData mapData)
{
var model = Activator.CreateInstance(mapData.TargetType);
Dictionary<string, string> propertyData = new Dictionary<string, string>();
var propertySemantics = FilterPropertySematicsByEntity(LoadPropertySemantics(mapData.TargetType),mapData);
foreach (var pi in mapData.TargetType.GetProperties())
{
bool multival = pi.PropertyType.IsGenericType && (pi.PropertyType.GetGenericTypeDefinition() == typeof(List<>));
Type propertyType = multival ? pi.PropertyType.GetGenericArguments()[0] : pi.PropertyType;
if (propertySemantics.ContainsKey(pi.Name))
{
foreach (var info in propertySemantics[pi.Name])
{
IField field = GetFieldFromSemantics(mapData, info);
if (field != null && (field.Values.Count > 0 || field.EmbeddedValues.Count > 0))
{
pi.SetValue(model, GetFieldValues(field, propertyType, multival, mapData));
propertyData.Add(pi.Name, GetFieldXPath(field));
break;
}
//Special cases
if (mapData.SourceEntity!=null)
{
bool processed = false;
//Map the whole entity to an image property, or a resolved link to the entity to a Url field
if (info.PropertyName == "_self")
{
if (propertyType == typeof(MediaItem) && mapData.SourceEntity.Multimedia != null)
{
pi.SetValue(model, GetMultiMediaLinks(new List<IComponent> { mapData.SourceEntity }, propertyType, multival));
processed = true;
}
else if (propertyType == typeof(Link) || propertyType == typeof(String))
{
pi.SetValue(model, GetMultiComponentLinks(new List<IComponent> { mapData.SourceEntity }, propertyType, multival));
processed = true;
}
}
//Map all fields into a single (Dictionary) property
else if (info.PropertyName == "_all" && pi.PropertyType == typeof(Dictionary<string,string>))
{
pi.SetValue(model, GetAllFieldsAsDictionary(mapData.SourceEntity));
processed = true;
}
if (processed)
{
break;
}
}
}
}
}
if (model is IEntity)
{
((IEntity)model).PropertyData = propertyData;
}
return model;
}