/// <summary>
/// Extends value population to include stream data
/// </summary>
/// <param name="row">The row containing the data</param>
/// <param name="instance">The structural instacne</param>
protected override void PopulateInstanceFromRow(EntitySetDataRow row, QueryStructuralValue instance)
{
base.PopulateInstanceFromRow(row, instance);
var rowWithStreams = row as EntitySetDataRowWithStreams;
if (rowWithStreams != null)
{
foreach (var stream in rowWithStreams.Streams)
{
if (stream.IsEditLinkBasedOnConvention)
{
ExceptionUtilities.CheckObjectNotNull(this.LinkGenerator, "Cannot compute convention-based edit link without injected generator");
stream.EditLink = this.LinkGenerator.GenerateStreamEditLink(instance, stream.Name);
// for the default stream, there must always be a self-link
if (stream.Name == null && stream.SelfLink == null)
{
stream.SelfLink = stream.EditLink;
}
}
instance.SetStreamValue(stream.Name, stream.ContentType, stream.ETag, stream.EditLink, stream.SelfLink, stream.Content);
}
}
instance.MarkDynamicPropertyValues();
}
private void PopulateNavigations(EntitySetDataRow row, QueryStructuralValue instance)
{
var entityInstance = instance as QueryEntityValue;
EntitySetData entitySetData = row.Parent;
EntityContainerData containerData = entitySetData.Parent;
foreach (AssociationSet associationSet in containerData.EntityContainer.AssociationSets)
{
foreach (var fromSetEnd in associationSet.Ends.Where(e => e.EntitySet == entitySetData.EntitySet))
{
var fromEntityType = fromSetEnd.AssociationEnd.EntityType;
if (!row.EntityType.IsKindOf(fromEntityType))
{
continue;
}
var toSetEnd = associationSet.GetOtherEnd(fromSetEnd);
this.PopulateNavigateResult(row, entityInstance, associationSet, fromSetEnd, toSetEnd);
// if Navigation property exists, populate it as well
var navProp = row.EntityType.AllNavigationProperties.SingleOrDefault(p => p.Association == associationSet.AssociationType &&
p.ToAssociationEnd == toSetEnd.AssociationEnd);
if (navProp != null)
{
instance.SetValue(navProp.Name, entityInstance.GetNavigateResult(navProp.Association, navProp.ToAssociationEnd));
}
}
}
}
private void ConsiderCandidateForRelationships(EntitySetDataRow row)
{
foreach (RelationshipSelector rs in this.relationshipSelectors)
{
rs.ConsiderCandidate(row.Parent.EntitySet, row.EntityType, row.Key);
}
}
private void CreateRelationships(
EntityContainerData data,
ref int createdEntitiesCount,
ref int createdAssociationsCount)
{
List <RelationshipDescription> relationshipsToCreate;
List <KeyValuePair <EntitySet, EntityType> > entitiesToCreateInCurrentBatch;
int loopCount = 0;
while (this.GetRelationshipsAndEntitiesToCreate(out relationshipsToCreate, out entitiesToCreateInCurrentBatch))
{
loopCount++;
// there are times when relationships are unable to be created for particular entity type graphs
// in these situations this check guards against running infinitely long, adding 20
// ensures that all models get at least 100 loops to generate relationship data, otherwise this
// guard might be too low
if (loopCount > ((this.relationshipSelectors.Count * 4) + 20))
{
throw new TaupoInvalidOperationException("Specified relationship requirements cannot be met. Make sure capacity selectors don't contradict each other.");
}
this.PopulateAssociationSetRows(data, relationshipsToCreate);
createdAssociationsCount += relationshipsToCreate.Count;
foreach (var setTypePair in entitiesToCreateInCurrentBatch)
{
EntitySetDataRow r = this.PopulateNewEntitySetRow(data, setTypePair.Key, setTypePair.Value);
createdEntitiesCount++;
this.ConsiderCandidateForRelationships(r);
}
}
}
private void ResolveConstraints(EntitySetDataRow row, PropertyWithConstraints propertyWithConstraints)
{
List <PropertyConstraint> constraints = propertyWithConstraints.GetConstraints(row.EntityType);
if (constraints.Count > 0)
{
this.ResolvePropertyValue(row, propertyWithConstraints.Property, constraints);
}
}
private IEntitySetData CreateObjectFromRow(EntitySetDataRow targetRow)
{
var targetEntityType = targetRow.EntityType;
var targetObject = this.ObjectServices.GetObjectAdapter(targetEntityType.FullName).CreateData(
targetRow.PropertyPaths.Select(p => new NamedValue(p, targetRow.GetValue(p))).Where(v => v.Value != UninitializedData.Value));
return(this.CreateEntitySetObjectData(targetObject, targetRow.Parent.EntitySet.ContainerQualifiedName));
}
private object ResolvePropertyValue(EntitySetDataRow row, MemberProperty property, List <PropertyConstraint> constraints)
{
if (this.resolved.Any(kv => kv.Key == row && kv.Value == property))
{
return(row[property.Name]);
}
KeyValuePair <EntitySetDataRow, MemberProperty> sameItem = this.visited.Where(kv => kv.Key == row && kv.Value == property).SingleOrDefault();
if (sameItem.Key != null)
{
int indexCycleStartsWith = this.visited.IndexOf(sameItem);
List <object> values = this.visited.Where((kv, i) => i >= indexCycleStartsWith).Select(kv => kv.Key[kv.Value.Name]).Distinct(ValueComparer.Instance).ToList();
if (values.Count > 1)
{
throw new TaupoInvalidOperationException("Referential constraint cycle detected: " + GetReferentialConstraintCycleDescription(this.visited, indexCycleStartsWith));
}
return(values[0]);
}
var candidates = new List <object>();
foreach (PropertyConstraint constraint in constraints)
{
object candidate;
if (this.ResolveConstraintValue(row, property, constraint, out candidate))
{
candidates.Add(candidate);
}
}
if (candidates.Distinct(ValueComparer.Instance).Count() > 1)
{
throw new TaupoInvalidOperationException("Overlapping foreign keys with conflicting values detected: " + GetOverlappingForeignKeyDescription(constraints));
}
object value;
if (candidates.Count > 0)
{
value = candidates[0];
if (!ValueComparer.Instance.Equals(value, row[property.Name]))
{
row[property.Name] = value;
}
}
else
{
value = row[property.Name];
}
this.resolved.Add(new KeyValuePair <EntitySetDataRow, MemberProperty>(row, property));
return(value);
}
private EntitySetDataRow PopulateEntitySetRow(EntityContainerData data, EntitySet entitySet, EntityType entityType, IEnumerable <NamedValue> entityData)
{
EntitySetDataRow row = data[entitySet].AddNewRowOfType(entityType);
foreach (NamedValue namedValue in entityData)
{
row.SetValue(namedValue.Name, namedValue.Value);
}
this.entitySetAndTypeSelector.IncrementCount(entitySet, entityType);
return(row);
}
private void PopulateNavigateResult(EntitySetDataRow row, QueryEntityValue entityInstance, AssociationSet associationSet, AssociationSetEnd fromSetEnd, AssociationSetEnd toSetEnd)
{
EntityContainerData containerData = row.Parent.Parent;
var associationSetData = containerData.GetAssociationSetData(associationSet.Name);
var targetInstanceLookup = this.rowInstances[toSetEnd.EntitySet.Name];
var associatedObjects = associationSetData.Rows
.Where(r => r.GetRoleKey(fromSetEnd.AssociationEnd.RoleName).Equals(row.Key))
.Select(r => targetInstanceLookup[r.GetRoleKey(toSetEnd.AssociationEnd.RoleName)])
.ToArray();
var toEntityType = toSetEnd.AssociationEnd.EntityType;
var toQueryEntityType = this.GetQueryType(toSetEnd.EntitySet.Name, toEntityType);
if (toSetEnd.AssociationEnd.Multiplicity == EndMultiplicity.Many)
{
var collectionType = toQueryEntityType.CreateCollectionType();
var collectionValue = collectionType.CreateCollectionWithValues(associatedObjects);
entityInstance.SetNavigateResult(associationSet.AssociationType, toSetEnd.AssociationEnd, collectionValue);
}
else
{
if (associatedObjects.Length == 0)
{
entityInstance.SetNavigateResult(associationSet.AssociationType, toSetEnd.AssociationEnd, toQueryEntityType.NullValue);
}
else
{
if (associatedObjects.Length != 1)
{
var debugAssociatedValues = string.Join("," + Environment.NewLine, associatedObjects.Select(ao => ao.ToString()));
throw new TaupoInfrastructureException(
string.Format(
CultureInfo.InvariantCulture,
"Found {0} associated objects for {1}.{2}, on Entity Instance {3} associated Objects = {4}",
associatedObjects.Length,
associationSet.AssociationType.FullName,
fromSetEnd.AssociationEnd.RoleName,
entityInstance,
debugAssociatedValues));
}
var targetInstance = associatedObjects.Single();
entityInstance.SetNavigateResult(associationSet.AssociationType, toSetEnd.AssociationEnd, targetInstance);
}
}
}
private bool ResolveConstraintValue(EntitySetDataRow dependentRow, MemberProperty property, PropertyConstraint constraint, out object value)
{
value = null;
List <AssociationSetDataRow> associationRows = this.data[constraint.AssociationSet].Rows.Where(
r => ReferenceEquals(r.GetRoleKey(constraint.DependentRoleName), dependentRow.Key)).ToList();
if (associationRows.Count == 0)
{
return(false);
}
if (associationRows.Count > 1)
{
throw new TaupoInvalidOperationException(string.Format(
CultureInfo.InvariantCulture,
"Multiplicity constraint violated: the association set '{0}' has multiple rows with the same role key for the dependent role '{1}'.",
constraint.AssociationSet.Name,
constraint.DependentRoleName));
}
EntityDataKey principalKey = associationRows[0].GetRoleKey(constraint.PrincipalRoleName);
EntitySetDataRow principalRow = this.data[constraint.PrincipalEntitySet].Rows.Where(r => ReferenceEquals(r.Key, principalKey)).SingleOrDefault();
if (principalRow != null)
{
List <PropertyConstraint> constraints;
if (this.TryGetConstraints(principalRow, constraint.PrincipalProperty, out constraints))
{
var item = new KeyValuePair <EntitySetDataRow, MemberProperty>(dependentRow, property);
this.visited.Add(item);
value = this.ResolvePropertyValue(principalRow, constraint.PrincipalProperty, constraints);
this.visited.Remove(item);
}
else
{
value = principalRow[constraint.PrincipalProperty.Name];
}
}
else if (constraint.PrincipalProperty.IsPrimaryKey)
{
value = principalKey[constraint.PrincipalProperty.Name];
}
return(true);
}
/// <summary>
/// Tries to get next data to upload.
/// </summary>
/// <param name="data">The data to upload.</param>
/// <returns>True if there is a data for upload, false otherwise.</returns>
public virtual bool TryPopulateNextData(out EntityContainerData data)
{
ExceptionUtilities.CheckObjectNotNull(this.StructuralDataServices, "StructuralGenerators cannot be null.");
this.CreateEntitySetAndTypeSelectorIfNull();
this.CreateRelationshipSelectorsIfNull();
if (this.seedData != null)
{
data = this.seedData;
this.seedData = null;
}
else
{
data = new EntityContainerData(this.EntityContainer);
}
int createdEntitiesCount = 0, createdAssociationsCount = 0;
this.CreateRelationships(data, ref createdEntitiesCount, ref createdAssociationsCount);
EntitySet entitySet;
EntityType entityType;
while (this.GetNextEntitySetAndTypeToCreate(out entitySet, out entityType))
{
EntitySetDataRow row = this.PopulateNewEntitySetRow(data, entitySet, entityType);
createdEntitiesCount++;
this.ConsiderCandidateForRelationships(row);
this.CreateRelationships(data, ref createdEntitiesCount, ref createdAssociationsCount);
if (createdEntitiesCount >= this.ThresholdForNumberOfEntities && this.ThresholdForNumberOfEntities != -1)
{
break;
}
}
if (this.ReferentialConstraintsResolver != null)
{
this.ReferentialConstraintsResolver.ResolveReferentialConstraints(data);
}
return(createdEntitiesCount > 0 || createdAssociationsCount > 0);
}
private void PopulateScalarAndComplexCollectionAndNonCollectionProperties(EntitySetDataRow row, QueryStructuralValue instance)
{
IEnumerable <QueryProperty> allProperties = instance.Type.Properties;
if (instance.Type is QueryEntityType)
{
List <string> properties = ((QueryEntityType)instance.Type).EntityType.AllProperties.Select(p => p.Name).ToList();
allProperties = instance.Type.Properties.Where(m => properties.Contains(m.Name));
}
List <QueryProperty> nonEntityQueryProperties = new List <QueryProperty>();
foreach (QueryProperty qp in allProperties)
{
nonEntityQueryProperties.Add(qp);
}
this.BuildStructuralPropertiesQueryValue(instance, string.Empty, row.EntityType.AllProperties.ToList(), nonEntityQueryProperties, row);
}
private bool TryGetConstraints(EntitySetDataRow row, MemberProperty property, out List <PropertyConstraint> constraints)
{
constraints = null;
List <PropertyWithConstraints> propertiesWithConstraints;
if (this.entitySetToConstraintsMap.TryGetValue(row.Parent.EntitySet, out propertiesWithConstraints))
{
constraints = propertiesWithConstraints
.Where(p => p.Property == property)
.Select(p => p.GetConstraints(row.EntityType)).SingleOrDefault();
if (constraints != null && constraints.Count == 0)
{
constraints = null;
}
}
return(constraints != null);
}
private void BuildStructuralPropertiesQueryValue(QueryStructuralValue instance, string propertyPath, IList <MemberProperty> properties, IList <QueryProperty> queryProperties, EntitySetDataRow row)
{
ExceptionUtilities.Assert(properties.Count == queryProperties.Count, "QueryProperties '{0}' and MemberProperties '{1}' are not the same number!", CreateQueryPropertyList(queryProperties), CreateMemberPropertyList(properties));
// TODO: Some Taupo framework pieces skip over StreamDataType properties
foreach (MemberProperty childProperty in properties.Where(p => !(p.PropertyType is StreamDataType)))
{
string childPropertyPath = propertyPath + childProperty.Name;
List <QueryProperty> childQueryProperties = queryProperties.Where(p => p.Name == childProperty.Name).ToList();
ExceptionUtilities.Assert(childQueryProperties.Count == 1, "Could not find query property based on MemberProperty Name '{0}' in list of query properties '{1}'", childProperty.Name, CreateQueryPropertyList(childQueryProperties));
QueryProperty childQueryProperty = childQueryProperties.First();
QueryCollectionType childCollectionDataType = childQueryProperty.PropertyType as QueryCollectionType;
QueryScalarType childScalarType = childQueryProperty.PropertyType as QueryScalarType;
QueryComplexType childComplexType = childQueryProperty.PropertyType as QueryComplexType;
if (childCollectionDataType != null)
{
instance.SetValue(childProperty.Name, this.BuildCollectionQueryValue(childPropertyPath + ".", childCollectionDataType, row));
}
else if (childScalarType != null)
{
var value = row[childPropertyPath];
var queryValue = childScalarType.CreateValue(value);
instance.SetValue(childQueryProperty.Name, queryValue);
}
else
{
ExceptionUtilities.CheckObjectNotNull(childComplexType, "Unknown type '{0}'", childProperty.PropertyType);
// If a complex type instance is null in the datarow, we will create a QueryStructuralValue indicating null and set it on the instance.
if (row.PropertyPaths.Contains(childPropertyPath) && row[childPropertyPath] == null)
{
instance.SetValue(childProperty.Name, new QueryStructuralValue(childComplexType, true, null, childComplexType.EvaluationStrategy));
}
else
{
QueryStructuralValue childInstance = childComplexType.CreateNewInstance();
this.BuildStructuralPropertiesQueryValue(childInstance, childPropertyPath + ".", childComplexType.ComplexType.Properties, childComplexType.Properties, row);
instance.SetValue(childProperty.Name, childInstance);
}
}
}
}
private QueryValue BuildCollectionQueryValue(string propertyPath, QueryCollectionType queryCollectionType, EntitySetDataRow row)
{
QueryScalarType scalarElementDataType = queryCollectionType.ElementType as QueryScalarType;
QueryComplexType complexTypeElementDataType = queryCollectionType.ElementType as QueryComplexType;
List <QueryValue> queryValues = new List <QueryValue>();
if (scalarElementDataType != null)
{
int i = 0;
while (row.PropertyPaths.Any(pp => pp == propertyPath + i))
{
var value = row[propertyPath + i];
queryValues.Add(scalarElementDataType.CreateValue(value));
i++;
}
}
else
{
ExceptionUtilities.CheckObjectNotNull(complexTypeElementDataType, "PropertyPath '{0}' is an invalid type '{1}'", propertyPath, queryCollectionType.ElementType);
int i = 0;
while (row.PropertyPaths.Where(pp => pp.StartsWith(propertyPath + i, StringComparison.Ordinal)).Count() > 0)
{
QueryStructuralValue complexChildInstance = complexTypeElementDataType.CreateNewInstance();
this.BuildStructuralPropertiesQueryValue(complexChildInstance, propertyPath + i + ".", complexTypeElementDataType.ComplexType.Properties, complexTypeElementDataType.Properties, row);
queryValues.Add(complexChildInstance);
i++;
}
}
return(queryCollectionType.CreateCollectionWithValues(queryValues.ToArray()));
}
/// <summary>
/// Helper method for populating property values on the given instance
/// </summary>
/// <param name="row">The row containing the data</param>
/// <param name="instance">The structural instacne</param>
protected virtual void PopulateInstanceFromRow(EntitySetDataRow row, QueryStructuralValue instance)
{
this.PopulateNavigations(row, instance);
this.PopulateScalarAndComplexCollectionAndNonCollectionProperties(row, instance);
}
