protected virtual void DropTables(ManagementSession session)
{
foreach (SchemaTable table in Schema)
{
this.DropTable(session, table);
}
}
protected virtual void CreateProcedures(ManagementSession session)
{
foreach (var procedure in Schema.Procedures)
{
this.CreateProcedure(session, procedure);
}
}
public virtual void Execute(ManagementSession session)
{
var writeDocument = false;
if (this.writer.WriteState == WriteState.Start)
{
this.writer.WriteStartDocument();
this.writer.WriteStartElement(Serialization.Allors);
writeDocument = true;
}
this.writer.WriteStartElement(Serialization.Population);
this.writer.WriteAttributeString(Serialization.Version, Serialization.VersionCurrent.ToString());
this.writer.WriteStartElement(Serialization.Objects);
this.writer.WriteStartElement(Serialization.Database);
this.SaveObjects(session);
this.writer.WriteEndElement();
this.writer.WriteEndElement();
this.writer.WriteStartElement(Serialization.Relations);
this.writer.WriteStartElement(Serialization.Database);
this.SaveRelations(session);
this.writer.WriteEndElement();
this.writer.WriteEndElement();
this.writer.WriteEndElement();
if (writeDocument)
{
this.writer.WriteEndElement();
this.writer.WriteEndDocument();
}
}
protected virtual void LoadRelations(ManagementSession session)
{
while (this.reader.Read())
{
switch (this.reader.NodeType)
{
case XmlNodeType.Element:
if (this.reader.Name.Equals(Serialization.Database))
{
if (!this.reader.IsEmptyElement)
{
this.LoadDatabaseRelationTypes(session);
}
}
else if (reader.Name.Equals(Serialization.Workspace))
{
throw new Exception("Can not load workspace relations in a database.");
}
else
{
throw new Exception("Unknown child element <" + this.reader.Name + "> in parent element <" + Serialization.Relations + ">");
}
break;
case XmlNodeType.EndElement:
if (!this.reader.Name.Equals(Serialization.Relations))
{
throw new Exception("Expected closing element </" + Serialization.Relations + ">");
}
return;
}
}
}
protected virtual void DropIndexes(ManagementSession session)
{
foreach (SchemaTable table in Schema)
{
foreach (SchemaColumn column in table)
{
if (column.IndexType != SchemaIndexType.None)
{
this.DropIndex(session, table, column);
}
}
}
}
protected void SaveObjects(ManagementSession session)
{
var concreteCompositeType = new List <IClass>(this.database.MetaPopulation.Classes);
concreteCompositeType.Sort(MetaObjectComparer.ById);
foreach (var type in concreteCompositeType)
{
var atLeastOne = false;
var sql = "SELECT " + this.database.Schema.ObjectId + "\n";
sql += "FROM " + this.database.Schema.Table(type.ExclusiveClass) + "\n";
sql += "WHERE " + this.database.Schema.TypeId + "=" + this.database.Schema.TypeId.Param.InvocationName + "\n";
sql += "ORDER BY " + this.database.Schema.ObjectId;
using (var command = session.CreateCommand(sql))
{
command.AddInParameter(this.database.Schema.TypeId.Param.Name, type.Id);
using (var reader = command.ExecuteReader())
{
while (reader.Read())
{
if (atLeastOne == false)
{
atLeastOne = true;
this.writer.WriteStartElement(Serialization.ObjectType);
this.writer.WriteAttributeString(Serialization.Id, type.Id.ToString());
}
else
{
this.writer.WriteString(Serialization.ObjectsSplitter);
}
var objectId = long.Parse(reader[0].ToString());
this.writer.WriteString(objectId.ToString());
}
reader.Close();
}
}
if (atLeastOne)
{
this.writer.WriteEndElement();
}
}
}
protected virtual void TruncateTables(ManagementSession session)
{
this.ResetSequence(session);
foreach (SchemaTable table in Schema)
{
switch (table.Kind)
{
case SchemaTableKind.System:
case SchemaTableKind.Object:
case SchemaTableKind.Relation:
this.TruncateTables(session, table);
break;
}
}
}
protected virtual void LoadPopulation(ManagementSession session)
{
while (this.reader.Read())
{
switch (this.reader.NodeType)
{
// only process elements, ignore others
case XmlNodeType.Element:
if (this.reader.Name.Equals(Serialization.Objects))
{
if (!this.reader.IsEmptyElement)
{
this.LoadObjects(session);
}
this.LoadObjectsPostProcess(session);
}
else if (reader.Name.Equals(Serialization.Relations))
{
if (!reader.IsEmptyElement)
{
this.LoadRelations(session);
}
}
else
{
throw new Exception("Unknown child element <" + this.reader.Name + "> in parent element <" + Serialization.Population + ">");
}
break;
case XmlNodeType.EndElement:
if (!this.reader.Name.Equals(Serialization.Population))
{
throw new Exception("Expected closing element </" + Serialization.Population + ">");
}
return;
}
}
}
protected virtual void LoadObjectsPostProcess(ManagementSession session)
{
foreach (var type in this.database.MetaPopulation.Composites)
{
if (type is IClass)
{
var sql = new StringBuilder();
sql.Append("INSERT INTO " + this.database.Schema.Objects + " (" + this.database.Schema.ObjectId + "," + this.database.Schema.TypeId + "," + this.database.Schema.CacheId + ")\n");
sql.Append("SELECT " + this.database.Schema.ObjectId + "," + this.database.Schema.TypeId + ", " + Reference.InitialVersion + "\n");
sql.Append("FROM " + this.database.Schema.Table(type.ExclusiveClass));
lock (this)
{
using (var command = session.CreateCommand(sql.ToString()))
{
command.ExecuteNonQuery();
}
}
}
}
}
public void Execute(ManagementSession session)
{
while (this.reader.Read())
{
// only process elements, ignore others
if (this.reader.NodeType.Equals(XmlNodeType.Element))
{
if (this.reader.Name.Equals(Serialization.Population))
{
// TODO: check version
// Serialization.CheckVersion(this.xml.Population.Version);
if (!this.reader.IsEmptyElement)
{
this.LoadPopulation(session);
}
return;
}
}
}
}
protected virtual void LoadDatabaseRelationTypes(ManagementSession session)
{
while (this.reader.Read())
{
switch (this.reader.NodeType)
{
// only process elements, ignore others
case XmlNodeType.Element:
if (!this.reader.IsEmptyElement)
{
if (this.reader.Name.Equals(Serialization.RelationTypeUnit) ||
this.reader.Name.Equals(Serialization.RelationTypeComposite))
{
var relationTypeIdString = this.reader.GetAttribute(Serialization.Id);
if (string.IsNullOrEmpty(relationTypeIdString))
{
throw new Exception("Relation type has no id");
}
var relationTypeId = new Guid(relationTypeIdString);
var relationType = (IRelationType)this.database.MetaPopulation.Find(relationTypeId);
if (this.reader.Name.Equals(Serialization.RelationTypeUnit))
{
if (relationType == null || relationType.RoleType.ObjectType is IComposite)
{
this.CantLoadUnitRole(relationTypeId);
}
else
{
var relationsByExclusiveLeafClass = new Dictionary <IObjectType, List <UnitRelation> >();
this.LoadUnitRelations(relationType, relationsByExclusiveLeafClass);
foreach (var dictionaryEntry in relationsByExclusiveLeafClass)
{
var exclusiveLeafClass = dictionaryEntry.Key;
var relations = dictionaryEntry.Value;
var loadUnitRelations = session.LoadUnitRelationsFactory.Create();
loadUnitRelations.Execute(relations, exclusiveLeafClass, relationType.RoleType);
}
}
}
else if (this.reader.Name.Equals(Serialization.RelationTypeComposite))
{
if (relationType == null || relationType.RoleType.ObjectType is IUnit)
{
this.CantLoadCompositeRole(relationTypeId);
}
else
{
var relations = new List <CompositeRelation>();
this.LoadCompositeRelations(relationType, relations);
if (relations.Count > 0)
{
var loadCompositeRelations = session.LoadCompositeRelationsFactory.Create(relationType.RoleType);
loadCompositeRelations.Execute(relations);
}
}
}
}
else
{
throw new Exception(
"Unknown child element <" + this.reader.Name + "> in parent element <"
+ Serialization.Database + ">");
}
}
break;
case XmlNodeType.EndElement:
if (!this.reader.Name.Equals(Serialization.Database))
{
throw new Exception("Expected closing element </" + Serialization.Database + ">");
}
return;
}
}
}
protected virtual void DropFunctions(ManagementSession session)
{
}
protected abstract void DropTable(ManagementSession session, SchemaTable table);
protected abstract void TruncateTables(ManagementSession session, SchemaTable table);
protected virtual void ResetSequence(ManagementSession session)
{
}
protected virtual void LoadDatabaseObjectTypes(ManagementSession session)
{
while (this.reader.Read())
{
switch (this.reader.NodeType)
{
// only process elements, ignore others
case XmlNodeType.Element:
if (this.reader.Name.Equals(Serialization.ObjectType))
{
if (!this.reader.IsEmptyElement)
{
var objectTypeIdString = this.reader.GetAttribute(Serialization.Id);
if (string.IsNullOrEmpty(objectTypeIdString))
{
throw new Exception("Object type id is missing");
}
var objectTypeId = new Guid(objectTypeIdString);
var objectType = this.database.ObjectFactory.GetObjectTypeForType(objectTypeId);
var canLoad = objectType is IClass;
var objectIdsString = this.reader.ReadString();
var objectIdStringArray = objectIdsString.Split(Serialization.ObjectsSplitterCharArray);
var objectIds = new long[objectIdStringArray.Length];
for (var i = 0; i < objectIds.Length; i++)
{
var objectIdString = objectIdStringArray[i];
var objectId = long.Parse(objectIdString);
if (canLoad)
{
objectIds[i] = objectId;
this.objectTypeByObjectId[objectId] = (IClass)objectType;
}
else
{
this.OnObjectNotLoaded(objectTypeId, objectId);
}
}
if (canLoad)
{
var loadObjects = session.LoadObjectsFactory.Create(objectType);
loadObjects.Execute((IClass)objectType, objectIds);
}
}
}
else
{
throw new Exception("Unknown child element <" + this.reader.Name + "> in parent element <" + Serialization.Database + ">");
}
break;
case XmlNodeType.EndElement:
if (!this.reader.Name.Equals(Serialization.Database))
{
throw new Exception("Expected closing element </" + Serialization.Database + ">");
}
return;
}
}
}
protected virtual void DropTriggers(ManagementSession session)
{
}
protected abstract void CreateProcedure(ManagementSession session, SchemaProcedure procedure);
protected abstract void CreateIndex(ManagementSession session, SchemaTable table, SchemaColumn column);
protected virtual void CreateFunctions(ManagementSession session)
{
}
protected virtual void CreateTriggers(ManagementSession session)
{
}
protected void SaveRelations(ManagementSession session)
{
var exclusiveLeafClassesByObjectType = new Dictionary <IObjectType, HashSet <IClass> >();
var relations = new List <IRelationType>(this.database.MetaPopulation.RelationTypes);
relations.Sort(MetaObjectComparer.ById);
foreach (var relation in relations)
{
var associationType = relation.AssociationType;
if (associationType.ObjectType.ExistClass)
{
var roleType = relation.RoleType;
var sql = string.Empty;
if (roleType.ObjectType is IUnit)
{
HashSet <IClass> exclusiveLeafClasses;
if (!exclusiveLeafClassesByObjectType.TryGetValue(associationType.ObjectType, out exclusiveLeafClasses))
{
exclusiveLeafClasses = new HashSet <IClass>();
foreach (var concreteClass in associationType.ObjectType.Classes)
{
exclusiveLeafClasses.Add(concreteClass.ExclusiveClass);
}
exclusiveLeafClassesByObjectType[associationType.ObjectType] = exclusiveLeafClasses;
}
var first = true;
foreach (var exclusiveLeafClass in exclusiveLeafClasses)
{
if (first)
{
first = false;
}
else
{
sql += "UNION\n";
}
sql += "SELECT " + this.database.Schema.ObjectId + " As " + this.database.Schema.AssociationId + ", " + this.database.Schema.Column(roleType) + " As " + this.database.Schema.RoleId + "\n";
sql += "FROM " + this.database.Schema.Table(exclusiveLeafClass) + "\n";
sql += "WHERE " + this.database.Schema.Column(roleType) + " IS NOT NULL\n";
}
sql += "ORDER BY " + this.database.Schema.AssociationId;
}
else
{
if ((roleType.IsMany && associationType.IsMany) || !relation.ExistExclusiveClasses)
{
sql += "SELECT " + this.database.Schema.AssociationId + "," + this.database.Schema.RoleId + "\n";
sql += "FROM " + this.database.Schema.Table(relation) + "\n";
sql += "ORDER BY " + this.database.Schema.AssociationId + "," + this.database.Schema.RoleId;
}
else
{
// use foreign keys
if (roleType.IsOne)
{
sql += "SELECT " + this.database.Schema.ObjectId + " As " + this.database.Schema.AssociationId + ", " + this.database.Schema.Column(roleType) + " As " + this.database.Schema.RoleId + "\n";
sql += "FROM " + this.database.Schema.Table(associationType.ObjectType.ExclusiveClass) + "\n";
sql += "WHERE " + this.database.Schema.Column(roleType) + " IS NOT NULL\n";
sql += "ORDER BY " + this.database.Schema.AssociationId;
}
else
{
// role.Many
var compositeType = (IComposite)roleType.ObjectType;
sql += "SELECT " + this.database.Schema.Column(associationType) + " As " + this.database.Schema.AssociationId + ", " + this.database.Schema.ObjectId + " As " + this.database.Schema.RoleId + "\n";
sql += "FROM " + this.database.Schema.Table(compositeType.ExclusiveClass) + "\n";
sql += "WHERE " + this.database.Schema.Column(associationType) + " IS NOT NULL\n";
sql += "ORDER BY " + this.database.Schema.AssociationId + "," + this.database.Schema.RoleId;
}
}
}
using (var command = session.CreateCommand(sql))
{
using (var reader = command.ExecuteReader())
{
if (roleType.IsMany)
{
using (var relationTypeManyXmlWriter = new RelationTypeManyXmlWriter(relation, this.writer))
{
while (reader.Read())
{
var a = long.Parse(reader[0].ToString());
var r = long.Parse(reader[1].ToString());
relationTypeManyXmlWriter.Write(a, r);
}
relationTypeManyXmlWriter.Close();
}
}
else
{
using (var relationTypeOneXmlWriter = new RelationTypeOneXmlWriter(relation, this.writer))
{
while (reader.Read())
{
var a = long.Parse(reader[0].ToString());
if (roleType.ObjectType is IUnit)
{
var unitType = (IUnit)roleType.ObjectType;
var unitTypeTag = unitType.UnitTag;
var r = command.GetValue(reader, unitTypeTag, 1);
var content = Serialization.WriteString(unitTypeTag, r);
relationTypeOneXmlWriter.Write(a, content);
}
else
{
var r = reader[1];
relationTypeOneXmlWriter.Write(a, XmlConvert.ToString(long.Parse(r.ToString())));
}
}
relationTypeOneXmlWriter.Close();
}
}
}
}
}
}
}
protected virtual void DropUserDefinedTypes(ManagementSession session)
{
}
protected virtual void DropProcedures(ManagementSession session)
{
}
public abstract void DropIndex(ManagementSession session, SchemaTable table, SchemaColumn column);