/// <summary>
/// Get <see cref="EntitySet"/> of <see cref="Entity"/> for offline use
/// </summary>
/// <param name="domainContext"><see cref="DomainContext"/> source</param>
/// <param name="offEntity"><see cref="OfflinableEntity"/> to select the type of <see cref="EntitySet"/></param>
/// <returns><see cref="EntitySet"/> claimed</returns>
private static EntitySet GetEntitySetForOfflinableEntity(DomainContext domainContext, OfflinableEntity offEntity)
{
Type entityType = offEntity.CurrentEntity.GetType();
return GetEntitySetForOfflinableEntity(domainContext, entityType);
}
/// <summary>
/// Serialize <see cref="DomainContext"/> to a Json formatted string
/// </summary>
/// <param name="domainContext"><see cref="DomainContext"/> content to be serialized</param>
/// <returns>Json formatted <see cref="DomainContext"/></returns>
public static string SerializeContext(this DomainContext domainContext)
{
IEnumerable<Type> entityTypes = GetEntityTypesInContext(domainContext.GetType());
EntityChangeSet changeSet = domainContext.EntityContainer.GetChanges();
List<List<OfflinableEntity>> offlineEntityLists = new List<List<OfflinableEntity>>();
foreach (Type entityType in entityTypes)
{
EntitySet entitySet = domainContext.EntityContainer.GetEntitySet(entityType);
List<OfflinableEntity> offlineEntityList = new List<OfflinableEntity>();
foreach (Entity entity in entitySet)
{
OfflinableEntity offEntity = new OfflinableEntity(entity, changeSet.AddedEntities.Contains(entity));
offlineEntityList.Add(offEntity);
}
//Get deleted entities from changeset
IEnumerable<Entity> removedEntites = changeSet.RemovedEntities.Where(x => x.GetType().Equals(entityType));
//Need to save deleted entities as well
foreach (Entity entity in removedEntites)
{
OfflinableEntity offEntity = new OfflinableEntity(entity);
offlineEntityList.Add(offEntity);
}
offlineEntityLists.Add(offlineEntityList);
}
string jsonData = JsonUtil.SerializeList(offlineEntityLists);
return jsonData;
}
