private void RegisterRenameTableHint(StoredTypeInfo oldType, StoredTypeInfo newType)
{
if (EnsureTableExist(oldType))
{
schemaHints.Add(new RenameHint(GetTablePath(oldType), GetTablePath(newType)));
}
}
private void RegisterRenameFieldHint(
StoredTypeInfo oldType, StoredTypeInfo newType, string oldColumnName, string newColumnName)
{
if (EnsureTableExist(oldType) && EnsureFieldExist(oldType, oldColumnName))
{
schemaHints.Add(
new RenameHint(GetColumnPath(oldType, oldColumnName), GetColumnPath(newType, newColumnName)));
}
}
private void GenerateClearReferenceHint(
StoredTypeInfo removedType,
StoredTypeInfo updatedType,
StoredAssociationInfo association,
bool inverse)
{
if (association.ReferencingField.IsEntitySet && association.ConnectorType == null)
{
// There is nothing to cleanup in class containing EntitySet<T> property,
// when T is removed, and EntitySet<T> was paired to a property of T.
return;
}
var identityFieldsOfRemovedType = removedType.AllFields.Where(f => f.IsPrimaryKey).ToList();
var identityFieldsOfUpdatedType = association.ConnectorType != null
? association.ConnectorType.Fields
.Single(field => field.Name == ((association.IsMaster ^ inverse) ? WellKnown.SlaveFieldName : WellKnown.MasterFieldName))
.Fields
: association.ReferencingField.Fields;
var pairedIdentityFields = JoinFieldsByOriginalName(identityFieldsOfRemovedType, identityFieldsOfUpdatedType);
var pairedIdentityColumns = AssociateMappedFields(pairedIdentityFields);
if (pairedIdentityColumns == null)
{
throw new InvalidOperationException(
String.Format(Strings.ExPairedIdentityColumnsForTypesXAndXNotFound, removedType, updatedType));
}
var sourceTablePath = GetTablePath(updatedType);
var identities = pairedIdentityColumns.Select(pair =>
new IdentityPair(
GetColumnPath(updatedType, pair.Second),
GetColumnPath(removedType, pair.First), false))
.ToList();
if (removedType.Hierarchy.InheritanceSchema != InheritanceSchema.ConcreteTable)
{
identities.Add(new IdentityPair(
GetColumnPath(removedType, GetTypeIdMappingName(removedType)),
removedType.TypeId.ToString(), true));
}
var updatedColumns = pairedIdentityColumns.Select(pair =>
new Pair <string, object>(GetColumnPath(updatedType, pair.Second), null))
.ToList();
if (association.ConnectorType == null)
{
schemaHints.Add(new UpdateDataHint(sourceTablePath, identities, updatedColumns));
}
else
{
schemaHints.Add(new DeleteDataHint(sourceTablePath, identities));
}
}
private string GetColumnPath(StoredTypeInfo type, string columnName)
{
var nodeName = GetTableName(type);
// Due to current implementation of domain model FieldInfo.MappingName is not correct,
// it has naming rules unapplied, corresponding ColumnInfo.Name however is correct.
// StoredFieldInfo.MappingName is taken directly from FieldInfo.MappingName and thus is incorrect too.
// We need to apply naming rules here to make it work.
var actualColumnName = nameBuilder.ApplyNamingRules(columnName);
return(string.Format("Tables/{0}/Columns/{1}", nodeName, actualColumnName));
}
private void GenerateClearReferenceHints(
StoredTypeInfo removedType,
StoredTypeInfo[] updatedTypes,
StoredAssociationInfo association,
bool inverse)
{
foreach (var updatedType in updatedTypes)
{
GenerateClearReferenceHint(removedType, updatedType, association, inverse);
}
}
private void MapType(StoredTypeInfo oldType, StoredTypeInfo newType)
{
if (typeMapping.TryGetValue(oldType, out var existingNewType))
{
throw new InvalidOperationException(string.Format(
Strings.ExUnableToAssociateTypeXWithTypeYTypeXIsAlreadyMappedToTypeZ,
oldType, newType, existingNewType));
}
typeMapping[oldType] = newType;
reverseTypeMapping[newType] = oldType;
}
private bool EnsureTableExist(StoredTypeInfo type)
{
var nodeName = GetTableName(type);
if (extractedStorageModel.Tables.Contains(nodeName))
{
return(true);
}
UpgradeLog.Warning(Strings.ExTableXIsNotFound, nodeName);
return(false);
}
private static StoredTypeInfo[] GetAffectedMappedTypesAsArray(StoredTypeInfo type, bool includeInheritors)
{
var count = 1;
var result = EnumerableUtils.One(type);
if (includeInheritors)
{
result = result.Concat(type.AllDescendants);
count += type.AllDescendants.Length;
}
return(type.Hierarchy.InheritanceSchema == InheritanceSchema.ConcreteTable
? result.Where(t => !t.IsAbstract).ToArray()
: result.ToArray(count));
}
private static IEnumerable <StoredTypeInfo> GetAffectedMappedTypes(StoredTypeInfo type, bool includeInheritors)
{
var result = EnumerableUtils.One(type);
if (includeInheritors)
{
result = result.Concat(type.AllDescendants);
}
if (type.Hierarchy.InheritanceSchema == InheritanceSchema.ConcreteTable)
{
result = result.Where(t => !t.IsAbstract);
}
return(result);
}
private bool EnsureFieldExist(StoredTypeInfo type, string fieldName)
{
if (!EnsureTableExist(type))
{
return(false);
}
var nodeName = GetTableName(type);
var actualFieldName = nameBuilder.ApplyNamingRules(fieldName);
if (extractedStorageModel.Tables[nodeName].Columns.Contains(actualFieldName))
{
return(true);
}
UpgradeLog.Warning(Strings.ExColumnXIsNotFoundInTableY, actualFieldName, nodeName);
return(false);
}
private List <string> GetAffectedColumns(StoredTypeInfo type, StoredFieldInfo field)
{
var affectedColumns = new List <string>();
if (type.IsStructure)
{
var structureFields = extractedModel.Types
.Where(t => t.IsEntity)
.SelectMany(t => extractedModelFields[t].Where(f => f.IsStructure && f.ValueType == type.UnderlyingType));
foreach (var structureField in structureFields)
{
var nestedField = structureField.Fields.FirstOrDefault(f => f.OriginalName == field.Name);
if (nestedField != null)
{
affectedColumns.AddRange(GetAffectedColumns(structureField.DeclaringType, nestedField));
}
}
return(affectedColumns);
}
foreach (var primitiveField in field.PrimitiveFields)
{
var inheritanceSchema = type.Hierarchy.InheritanceSchema;
switch (inheritanceSchema)
{
case InheritanceSchema.ClassTable:
affectedColumns.Add(GetColumnPath(primitiveField.DeclaringType, primitiveField.MappingName));
break;
case InheritanceSchema.SingleTable:
affectedColumns.Add(GetColumnPath(type.Hierarchy.Root, primitiveField.MappingName));
break;
case InheritanceSchema.ConcreteTable:
var columns = GetAffectedMappedTypes(type, true)
.Select(t => GetColumnPath(t, primitiveField.MappingName));
affectedColumns.AddRange(columns);
break;
default:
throw Exceptions.InternalError(String.Format(Strings.ExInheritanceSchemaIsInvalid, inheritanceSchema), UpgradeLog.Instance);
}
}
return(affectedColumns);
}
private void GenerateRenameFieldHint(StoredFieldInfo oldField, StoredFieldInfo newField,
StoredTypeInfo newType, bool includeInheritors)
{
if (oldField.MappingName == newField.MappingName)
{
return;
}
foreach (var newTargetType in GetAffectedMappedTypes(newType, includeInheritors))
{
StoredTypeInfo oldTargetType;
if (!reverseTypeMapping.TryGetValue(newTargetType, out oldTargetType))
{
continue;
}
RegisterRenameFieldHint(oldTargetType, newTargetType, oldField.MappingName, newField.MappingName);
}
}
private void GenerateCleanupByPrimaryKeyHints(StoredTypeInfo removedType, bool isMovedToAnotherHierarchy)
{
var hierarchy = removedType.Hierarchy;
switch (hierarchy.InheritanceSchema)
{
case InheritanceSchema.ClassTable:
IEnumerable <StoredTypeInfo> typesToProcess;
typesToProcess = !isMovedToAnotherHierarchy
? EnumerableUtils.One(removedType).Concat(removedType.AllAncestors)
: removedType.AllAncestors;
foreach (var type in typesToProcess)
{
var identities1 = new[] { new IdentityPair(
GetColumnPath(type, GetTypeIdMappingName(type)),
removedType.TypeId.ToString(),
true) };
schemaHints.Add(
new DeleteDataHint(GetTablePath(type), identities1, isMovedToAnotherHierarchy));
}
break;
case InheritanceSchema.SingleTable:
var rootType = hierarchy.Root;
var identities2 = new[] { new IdentityPair(
GetColumnPath(rootType, GetTypeIdMappingName(rootType)),
removedType.TypeId.ToString(),
true) };
schemaHints.Add(
new DeleteDataHint(GetTablePath(rootType), identities2, isMovedToAnotherHierarchy));
break;
case InheritanceSchema.ConcreteTable:
// ConcreteTable schema doesn't include TypeId
schemaHints.Add(
new DeleteDataHint(GetTablePath(removedType), Array.Empty <IdentityPair>(), isMovedToAnotherHierarchy));
break;
default:
throw Exceptions.InternalError(string.Format(Strings.ExInheritanceSchemaIsInvalid, hierarchy.InheritanceSchema), UpgradeLog.Instance);
}
}
private void GenerateCleanupByPrimaryKeyHints(StoredTypeInfo removedType, bool isMovedToAnotherHierarchy)
{
var typesToProcess = new List <StoredTypeInfo>();
var hierarchy = removedType.Hierarchy;
switch (hierarchy.InheritanceSchema)
{
case InheritanceSchema.ClassTable:
if (!isMovedToAnotherHierarchy)
{
typesToProcess.Add(removedType);
}
typesToProcess.AddRange(removedType.AllAncestors);
break;
case InheritanceSchema.SingleTable:
typesToProcess.Add(hierarchy.Root);
break;
case InheritanceSchema.ConcreteTable:
typesToProcess.Add(removedType);
break;
default:
throw Exceptions.InternalError(String.Format(Strings.ExInheritanceSchemaIsInvalid, hierarchy.InheritanceSchema), UpgradeLog.Instance);
}
foreach (var type in typesToProcess)
{
var sourceTablePath = GetTablePath(type);
var identities = new List <IdentityPair>();
// ConcreteTable schema doesn't include TypeId
if (hierarchy.InheritanceSchema != InheritanceSchema.ConcreteTable)
{
identities.Add(new IdentityPair(
GetColumnPath(type, GetTypeIdMappingName(type)),
removedType.TypeId.ToString(),
true));
}
schemaHints.Add(
new DeleteDataHint(sourceTablePath, identities, isMovedToAnotherHierarchy));
}
}
private bool IsMovedToAnotherHierarchy(StoredTypeInfo oldType)
{
var newType = typeMapping.GetValueOrDefault(oldType);
if (newType == null)
{
return(false); // Type is removed
}
var oldRoot = oldType.Hierarchy.Root;
if (oldRoot == null)
{
return(false); // Just to be sure
}
var newRoot = newType.Hierarchy.Root;
if (newRoot == null)
{
return(false); // Just to be sure
}
return(newRoot != typeMapping.GetValueOrDefault(oldRoot));
}
private string GetTablePath(StoredTypeInfo type)
{
var nodeName = GetTableName(type);
return(string.Format("Tables/{0}", nodeName));
}
private string GetTableName(StoredTypeInfo type)
{
return(resolver.GetNodeName(
type.MappingDatabase, type.MappingSchema, type.MappingName));
}
private static string GetTablePath(this MappingResolver resolver, StoredTypeInfo type)
{
var nodeName = resolver.GetTableName(type);
return(string.Format("Tables/{0}", nodeName));
}
private string GetTablePath(StoredTypeInfo type) => $"Tables/{GetTableName(type)}";
private static string GetTypeIdMappingName(StoredTypeInfo type)
{
return(type.AllFields
.Single(field => field.Name.Equals(WellKnown.TypeIdFieldName, StringComparison.Ordinal))
.MappingName);
}
private void BuildFieldMapping(IEnumerable <RenameFieldHint> renames, IEnumerable <ChangeFieldTypeHint> typeChanges,
StoredTypeInfo oldType, StoredTypeInfo newType)
{
var newFields = newType.Fields.ToDictionary(field => field.Name);
foreach (var oldField in oldType.Fields)
{
var renameHint = renames.FirstOrDefault(hint => hint.OldFieldName == oldField.Name && hint.TargetType.GetFullName() == newType.UnderlyingType);
var newFieldName = renameHint != null
? renameHint.NewFieldName
: oldField.Name;
var newField = newFields.GetValueOrDefault(newFieldName);
if (newField == null)
{
continue;
}
if (oldField.IsStructure)
{
// If it is structure, we map it immediately
MapField(oldField, newField);
continue;
}
var typeChangeHint = typeChanges
.FirstOrDefault(hint => hint.Type.GetFullName() == newType.UnderlyingType && hint.FieldName == newField.Name);
if (typeChangeHint == null)
{
// Check & skip field if type is changed
var newValueTypeName = newField.IsEntitySet
? newField.ItemType
: newField.ValueType;
var oldValueTypeName = oldField.IsEntitySet
? oldField.ItemType
: oldField.ValueType;
var newValueType = currentTypes.GetValueOrDefault(newValueTypeName);
var oldValueType = extractedTypes.GetValueOrDefault(oldValueTypeName);
if (newValueType != null && oldValueType != null)
{
// We deal with reference field
var mappedOldValueType = typeMapping.GetValueOrDefault(oldValueType);
if (mappedOldValueType == null)
{
// Mapped to nothing = removed
continue;
}
if (mappedOldValueType != newValueType && !newValueType.AllDescendants.Contains(mappedOldValueType))
{
// This isn't a Dog -> Animal type mapping
continue;
}
}
else
// We deal with regular field
if (oldValueTypeName != newValueTypeName)
{
continue;
}
}
MapField(oldField, newField);
}
}
public static string GetTableName(this MappingResolver resolver, StoredTypeInfo type)
{
return(resolver.GetNodeName(
type.MappingDatabase, type.MappingSchema, type.MappingName));
}
private bool IsRemoved(StoredTypeInfo type)
{
return(!typeMapping.ContainsKey(type));
}
private static string GetTypeIdMappingName(StoredTypeInfo type)
{
var typeIdField = type.AllFields.Single(field => field.Name == WellKnown.TypeIdFieldName);
return(typeIdField.MappingName);
}
private void GenerateCleanupByForeignKeyHints(StoredTypeInfo removedType)
{
var removedTypeAndAncestors = removedType.AllAncestors.ToHashSet();
removedTypeAndAncestors.Add(removedType);
var affectedAssociations = (
from association in extractedModel.Associations
let requiresInverseCleanup =
association.IsMaster &&
association.ConnectorType != null &&
removedTypeAndAncestors.Contains(association.ReferencingField.DeclaringType)
where
// Regular association X.Y, Y must be cleaned up
removedTypeAndAncestors.Contains(association.ReferencedType) ||
// X.EntitySet<Y>, where X is in removedTypeAndAncestors,
// connectorType.X must be cleaned up as well
requiresInverseCleanup
select new { association, requiresInverseCleanup }
).ToList();
foreach (var pair in affectedAssociations)
{
var association = pair.association;
bool requiresInverseCleanup = pair.requiresInverseCleanup;
if (association.ConnectorType == null)
{
// This is regular reference
var field = association.ReferencingField;
var declaringType = field.DeclaringType;
if (declaringType.IsInterface)
{
var candidates = (extractedModel.Types.Where(
t => !t.IsInterface && t.Fields.Any(
f => f.IsInterfaceImplementation && f.Name == field.Name && f.ValueType == field.ValueType)))
.ToList();
foreach (var candidate in candidates)
{
var inheritanceSchema = candidate.Hierarchy.InheritanceSchema;
GenerateClearReferenceHints(
removedType,
GetAffectedMappedTypes(candidate, inheritanceSchema == InheritanceSchema.ConcreteTable).ToArray(),
association,
requiresInverseCleanup);
}
}
else
{
var inheritanceSchema = declaringType.Hierarchy.InheritanceSchema;
GenerateClearReferenceHints(
removedType,
GetAffectedMappedTypes(declaringType, inheritanceSchema == InheritanceSchema.ConcreteTable).ToArray(),
association,
requiresInverseCleanup);
}
}
else
{
// This is EntitySet
GenerateClearReferenceHints(
removedType,
new [] { association.ConnectorType },
association,
requiresInverseCleanup);
}
}
}
