/// <summary>
/// Process the docs and convert them to entities.
/// </summary>
/// <param name="rows"></param>
/// <returns></returns>
internal EntitiesProcessResult Process(
JToken[] rows, OdmViewProcessingOptions processingOptions)
{
PreProcessInfo preProcess = PreProcess(rows);
return(PostProcess(preProcess, processingOptions));
}
internal void FillProxy(
EntityDefinition entityDef,
object proxy, JToken doc, string id, PreProcessInfo preProcess,
OdmViewProcessingOptions processingOptions, bool emptyProxy)
{
foreach (EntityPropertyDefinition propDef in entityDef.Properties)
{
propDef.Read(proxy, doc, id, preProcess, processingOptions, emptyProxy, context);
}
//foreach (PropertyInfo prop in GetPropertiesOf(proxy)) {
// if (emptyProxy && IsSimpleType(prop)) {
// ReadValueType(proxy, prop, doc);
// }
// else if (emptyProxy && IsArray(prop)) {
// ReadArray(proxy, prop, doc);
// }
// else if (IsCollection(prop)) {
// CreateReferenceProxies(proxy, prop, doc, id, preProcess, processingOptions, emptyProxy);
// }
// else if (IsToOneReference(prop)) {
// DebugWriteLine("The property {0}.{1} is entity reference which is supported yet",
// prop.DeclaringType.Name, prop.Name, prop.PropertyType.Name);
// }
// else {
// DebugWriteLine("The property {0}.{1} is of type {2} which is not supported yet",
// prop.DeclaringType.Name, prop.Name, prop.PropertyType.Name);
// }
//}
}
private EntitiesProcessResult ExecuteView(CouchViewOptions viewOptions)
{
JToken[] rows = couchDBContext.ClientAdaper.GetViewRows(viewName, viewOptions);
var processingOptions = new OdmViewProcessingOptions(assoicateCollectionsToLoad);
EntitiesProcessResult processResult = couchDBContext.Process(rows, processingOptions);
return(processResult);
}
/// <summary>
/// Process document rows.
/// </summary>
/// <param name="rows"></param>
/// <returns></returns>
internal EntitiesProcessResult Process(
JToken[] rows, OdmViewProcessingOptions processingOptions)
{
EntitiesProcessResult result = IdentityMap.Process(rows, processingOptions);
DocumentManager.Add(result.NewEntities);
return(result);
}
/// <summary>
/// Create proxy from the specified document and entity type.
/// </summary>
/// <param name="doc"></param>
/// <param name="entityType"></param>
/// <returns></returns>
public object CreateProxy(
JToken doc, Type entityType, string id, PreProcessInfo preProcess,
OdmViewProcessingOptions processingOptions, bool emptyProxy)
{
EntityDefinition entityDef = context.Mapping.GetEntityDefinition(entityType);
object proxy = entityDef.CreateInstance();
FillProxy(entityDef, proxy, doc, id, preProcess, processingOptions, emptyProxy);
return(proxy);
}
private object Deserialize(
JToken doc, PreProcessInfo preProcess, OdmViewProcessingOptions processingOptions)
{
Type entityType = GetDocEntityType(doc);
string entityId = GetDocId(doc);
object entity = context.Serializer.CreateProxy(doc, entityType, entityId, preProcess, processingOptions, emptyProxy: true);
return(entity);
}
internal void ReFillProxy(
object entity,
JToken doc,
string id,
PreProcessInfo preProcess,
OdmViewProcessingOptions processingOptions)
{
EntityDefinition entityDef = context.Mapping.GetEntityDefinition(entity.GetType());
FillProxy(entityDef, entity, doc, id, preProcess, processingOptions, false);
}
private EntitiesProcessResult PostProcess(
PreProcessInfo preProcess, OdmViewProcessingOptions processingOptions)
{
var resultBuilder = new EntitiesProcessResultBuilder();
foreach (PreProcessEntityInfo preProcessRow in preProcess.Rows)
{
JToken row = preProcessRow.Row;
JToken doc = row[CouchDBFieldsConst.ResultRowDoc];
if (doc == null)
{
throw new Exception("doc field was not found");
}
string id = preProcessRow.Id;
string rev = doc.Value <string>(CouchDBFieldsConst.DocRev);
var idrev = new IdRev(id, rev);
object entity;
if (idToEntity.TryGetValue(id, out entity))
{
// PATCH: This line reload exist entities and should be remove in the future.
// The reason it is here is because when loading main entity with associated entity
// with many-to-many relations between them the related entity's assoication will
// be partially loaded and when updating the association of the related entity
// only part of the data will be avilable. This patch solve the problem
// but it will introduce inconsistensis and also cost in performance.
context.Serializer.ReFillProxy(entity, doc, id, preProcess, processingOptions);
// Reuse exist entity.
resultBuilder.AddExist(entity, idrev, doc, preProcessRow.Key);
}
else
{
// Found new entity
entity = Deserialize(doc, preProcess, processingOptions);
idToEntity.Add(id, entity);
entityToId.Add(entity, id);
resultBuilder.AddNew(entity, idrev, doc, preProcessRow.Key);
}
}
return(resultBuilder.BuildResult());
}
