internal 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 void SaveObjects(ManagementSession session)
{
var concreteCompositeType = new List <IClass>(this.database.MetaPopulation.Classes);
concreteCompositeType.Sort();
foreach (var type in concreteCompositeType)
{
var atLeastOne = false;
var sql = "SELECT " + Mapping.ColumnNameForObject + ", " + Mapping.ColumnNameForVersion + "\n";
sql += "FROM " + this.database.Mapping.TableNameForObjects + "\n";
sql += "WHERE " + Mapping.ColumnNameForClass + "=" + Mapping.ParamInvocationNameForClass + "\n";
sql += "ORDER BY " + Mapping.ColumnNameForObject;
using (var command = session.Connection.CreateCommand())
{
command.CommandText = sql;
command.CommandType = CommandType.Text;
command.AddInParameter(Mapping.ParamNameForClass, 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());
var version = reader[1].ToString();
this.writer.WriteString(objectId + Serialization.ObjectSplitter + version);
}
}
}
if (atLeastOne)
{
this.writer.WriteEndElement();
}
}
}
protected void SaveRelations(ManagementSession session)
{
var exclusiverRootClassesByObjectType = new Dictionary <IObjectType, HashSet <IObjectType> >();
var relations = new List <IRelationType>(this.database.MetaPopulation.RelationTypes);
relations.Sort();
foreach (var relation in relations)
{
var associationType = relation.AssociationType;
if (associationType.ObjectType.ExistClass)
{
var roleType = relation.RoleType;
var sql = string.Empty;
if (roleType.ObjectType.IsUnit)
{
if (!exclusiverRootClassesByObjectType.TryGetValue(associationType.ObjectType, out var exclusiveRootClasses))
{
exclusiveRootClasses = new HashSet <IObjectType>();
foreach (var concreteClass in associationType.ObjectType.Classes)
{
exclusiveRootClasses.Add(concreteClass.ExclusiveClass);
}
exclusiverRootClassesByObjectType[associationType.ObjectType] = exclusiveRootClasses;
}
var first = true;
foreach (var exclusiveRootClass in exclusiveRootClasses)
{
if (first)
{
first = false;
}
else
{
sql += "UNION\n";
}
sql += "SELECT " + Mapping.ColumnNameForObject + " As " + Mapping.ColumnNameForAssociation + ", " + this.database.Mapping.ColumnNameByRelationType[roleType.RelationType] + " As " + Mapping.ColumnNameForRole + "\n";
sql += "FROM " + this.database.Mapping.TableNameForObjectByClass[(IClass)exclusiveRootClass] + "\n";
sql += "WHERE " + this.database.Mapping.ColumnNameByRelationType[roleType.RelationType] + " IS NOT NULL\n";
}
sql += "ORDER BY " + Mapping.ColumnNameForAssociation;
}
else
{
if ((roleType.IsMany && associationType.IsMany) || !relation.ExistExclusiveClasses)
{
sql += "SELECT " + Mapping.ColumnNameForAssociation + "," + Mapping.ColumnNameForRole + "\n";
sql += "FROM " + this.database.Mapping.TableNameForRelationByRelationType[relation] + "\n";
sql += "ORDER BY " + Mapping.ColumnNameForAssociation + "," + Mapping.ColumnNameForRole;
}
else
{
// use foreign keys
if (roleType.IsOne)
{
sql += "SELECT " + Mapping.ColumnNameForObject + " As " + Mapping.ColumnNameForAssociation + ", " + this.database.Mapping.ColumnNameByRelationType[roleType.RelationType] + " As " + Mapping.ColumnNameForRole + "\n";
sql += "FROM " + this.database.Mapping.TableNameForObjectByClass[associationType.ObjectType.ExclusiveClass] + "\n";
sql += "WHERE " + this.database.Mapping.ColumnNameByRelationType[roleType.RelationType] + " IS NOT NULL\n";
sql += "ORDER BY " + Mapping.ColumnNameForAssociation;
}
else
{
// role.Many
sql += "SELECT " + this.database.Mapping.ColumnNameByRelationType[associationType.RelationType] + " As " + Mapping.ColumnNameForAssociation + ", " + Mapping.ColumnNameForObject + " As " + Mapping.ColumnNameForRole + "\n";
sql += "FROM " + this.database.Mapping.TableNameForObjectByClass[((IComposite)roleType.ObjectType).ExclusiveClass] + "\n";
sql += "WHERE " + this.database.Mapping.ColumnNameByRelationType[associationType.RelationType] + " IS NOT NULL\n";
sql += "ORDER BY " + Mapping.ColumnNameForAssociation + "," + Mapping.ColumnNameForRole;
}
}
}
using (var command = session.Connection.CreateCommand())
{
command.CommandText = sql;
command.CommandType = CommandType.Text;
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.IsUnit)
{
var unitTypeTag = ((IUnit)roleType.ObjectType).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();
}
}
}
}
}
}
}