internal static T SetGroupRelationProxyLazyLoadDelegate <T>(this ICoreReadonlyRelationsRepository providerSession, T entity) where T : class, IRelatableEntity
{
if (entity == null)
{
return(null);
}
entity.RelationProxies.LazyLoadDelegate = CreateGroupRelationLazyLoadDelegate(providerSession, entity.Id);
return(entity);
}
/// <summary>
/// Returns descendent relations
/// </summary>
/// <param name="repo">The repository to recusively select child relations from</param>
/// <param name="ancestorId"></param>
/// <param name="relationType"></param>
/// <returns></returns>
public IEnumerable <IRelationById> PerformGetDescendentRelations(ICoreReadonlyRelationsRepository repo, HiveId ancestorId, RelationType relationType = null)
{
var childRelations = repo.GetChildRelations(ancestorId, relationType).ToArray();
return(childRelations.SelectRecursive(x =>
{
var childRelationsSub = repo.GetChildRelations(x.DestinationId, relationType).ToArray();
return childRelationsSub;
}));
}
public QueryableDataSourceWrapper(IEnumerable <AbstractReadonlyEntityRepository> repositoryPool,
ICoreReadonlyRelationsRepository groupRepo,
Uri idRoot,
IFrameworkContext context,
AbstractScopedCache containerScopedCache,
RepositoryContext hiveContext)
{
_idRoot = idRoot;
_groupRepo = groupRepo;
_repositoryPool = repositoryPool;
FrameworkContext = context;
ContainerScopedCache = containerScopedCache;
HiveContext = hiveContext;
}
internal static T ProcessIdsAndGroupRelationProxyDelegate <T>(ICoreReadonlyRelationsRepository groupRepo, Uri idRoot, T returnValue)
where T : class, IReferenceByHiveId
{
if (returnValue == null)
{
return(null);
}
GroupSessionHelper.MakeIdsAbsolute(returnValue, idRoot);
if (TypeFinder.IsTypeAssignableFrom <IRelatableEntity>(returnValue.GetType()))
{
var casted = (IRelatableEntity)returnValue;
groupRepo.SetGroupRelationProxyLazyLoadDelegate(casted);
}
return(returnValue);
}
public static IEnumerable <IRelationById> GetRelations(this ICoreReadonlyRelationsRepository session, HiveId sourceId, Direction direction, RelationType relationType = null)
{
switch (direction)
{
case Direction.Ancestors:
return(session.GetAncestorRelations(sourceId, relationType));
case Direction.Children:
return(session.GetChildRelations(sourceId, relationType));
case Direction.Descendents:
return(session.GetDescendentRelations(sourceId, relationType));
case Direction.Parents:
return(session.GetParentRelations(sourceId, relationType));
}
return(Enumerable.Empty <IReadonlyRelation <IRelatableEntity, IRelatableEntity> >());
}
internal static IEnumerable <T> Get <T>(this IEnumerable <IReadonlyProviderRepository <T> > readonlyRepositories, ICoreReadonlyRelationsRepository groupRepo, bool allOrNothing, Uri idRoot, params HiveId[] ids)
where T : class, IReferenceByHiveId
{
//TODO: Determine which repo is the primary one
//TODO: Ensure population of the incoming queue is sorted by Ordinal
var totalOutput = new HashSet <T>();
foreach (var reader in readonlyRepositories)
{
reader.Get <T>(allOrNothing, ids).SkipWhile(SkipAndMergeFromProviders(reader.ProviderMetadata, totalOutput)).ForEach(x => totalOutput.Add(x));
}
return(totalOutput.DistinctBy(x => x.Id).Select(x => ProcessIdsAndGroupRelationProxyDelegate(groupRepo, idRoot, x)));
}
public static IEnumerable <T> ExecuteMany <T>(this IEnumerable <IReadonlyEntityRepository> readonlyRepositories, ICoreReadonlyRelationsRepository groupRepo, Uri idRoot, QueryDescription query, ObjectBinder objectBinder)
where T : class, IReferenceByHiveId
{
var totalOutput = new HashSet <T>();
foreach (var reader in readonlyRepositories)
{
reader.ExecuteMany <T>(query, objectBinder).SkipWhile(SkipAndMergeFromProviders(reader.ProviderMetadata, totalOutput)).ForEach(x => totalOutput.Add(x));
}
return(totalOutput.DistinctBy(x => x.Id).Select(x => ProcessIdsAndGroupRelationProxyDelegate(groupRepo, idRoot, x)));
}
public static IEnumerable <IRelationById> GetRelations(this ICoreReadonlyRelationsRepository session, IRelatableEntity source, Direction direction, RelationType relationType = null)
{
Mandate.ParameterNotNull(source, "source");
return(GetRelations(session, source.Id, direction, relationType));
}
public static IEnumerable <IRelationById> GetDescendentRelations(this ICoreReadonlyRelationsRepository session, IRelatableEntity ancestor, RelationType relationType = null)
{
Mandate.ParameterNotNull(ancestor, "ancestor");
return(session.GetDescendentRelations(ancestor.Id, relationType));
}
public static IEnumerable <IRelationById> GetAncestorRelations(this ICoreReadonlyRelationsRepository session, IRelatableEntity descendent, RelationType relationType = null)
{
Mandate.ParameterNotNull(descendent, "descendent");
return(session.GetAncestorRelations(descendent.Id, relationType));
}
public static IEnumerable <IRelationById> GetSiblingRelations(this ICoreReadonlyRelationsRepository session, HiveId siblingId, RelationType relationType = null)
{
Mandate.ParameterNotEmpty(siblingId, "siblingId");
return(session.GetBranchRelations(siblingId, relationType).Where(x => !x.DestinationId.EqualsIgnoringProviderId(siblingId)));
}
public static IEnumerable <IRelationById> GetSiblingRelations(this ICoreReadonlyRelationsRepository session, IRelatableEntity sibling, RelationType relationType = null)
{
Mandate.ParameterNotNull(sibling, "sibling");
return(GetSiblingRelations(session, sibling.Id, relationType));
}
public static IEnumerable <IRelationById> GetParentRelations(this ICoreReadonlyRelationsRepository session, IRelatableEntity child, RelationType relationType = null)
{
Mandate.ParameterNotNull(child, "child");
return(session.GetParentRelations(child.Id, relationType));
}
public static HiveId[] GetDescendantIds(this ICoreReadonlyRelationsRepository session, HiveId sourceId, RelationType relationType)
{
return(session.GetDescendentRelations(sourceId, relationType).Select(x => x.DestinationId).ToArray());
}
private static HiveId[] GetAncestorRelationSourceIds(this ICoreReadonlyRelationsRepository session, RelationType relationType, HiveId sourceId)
{
return(session.GetAncestorRelations(sourceId, relationType).Select(x => x.SourceId).ToArray());
}
public static IEnumerable <IRelationById> GetChildRelations(this ICoreReadonlyRelationsRepository session, IRelatableEntity parent, RelationType relationType = null)
{
Mandate.ParameterNotNull(parent, "parent");
return(session.GetChildRelations(parent.Id, relationType));
}
public static Func <HiveId, RelationProxyBucket> CreateGroupRelationLazyLoadDelegate(ICoreReadonlyRelationsRepository providerSession, HiveId id)
{
var idCopy = id;
return(x =>
{
var parents = providerSession.GetParentRelations(idCopy).Select(y => new RelationById(y.SourceId, y.DestinationId, y.Type, y.Ordinal, y.MetaData.ToArray()));
var children = providerSession.GetChildRelations(idCopy).Select(y => new RelationById(y.SourceId, y.DestinationId, y.Type, y.Ordinal, y.MetaData.ToArray()));
return new RelationProxyBucket(parents, children);
});
}
/// <summary>
/// Returns ancestor relations
/// </summary>
/// <param name="repo">The repository to recursively select parent relations from</param>
/// <param name="descendentId"></param>
/// <param name="relationType"></param>
/// <returns></returns>
public IEnumerable <IRelationById> PerformGetAncestorRelations(ICoreReadonlyRelationsRepository repo, HiveId descendentId, RelationType relationType = null)
{
return(repo.GetParentRelations(descendentId, relationType).SelectRecursive(x => repo.GetParentRelations(x.SourceId, relationType)));
}
