private void ResolveAssociation(XmlReader reader, MetadataConceptContainer container)
{
//创建关系元素对象
var association = new MetadataAssociation(reader.GetAttribute(XML_NAME_ATTRIBUTE));
int depth = reader.Depth;
while (reader.Read() && reader.Depth > depth)
{
if (reader.NodeType != XmlNodeType.Element)
{
continue;
}
if (reader.Name == XML_END_ELEMENT)
{
var member = new MetadataAssociationEnd(reader.GetAttribute(XML_NAME_ATTRIBUTE), reader.GetAttribute(XML_ENTITY_ATTRIBUTE))
{
Multiplicity = this.GetAttributeValue <MetadataAssociationMultiplicity>(reader, XML_MULTIPLICITY_ATTRIBUTE, MetadataAssociationMultiplicity.One),
};
//解析当前关系顶点的内部元素
this.ResolveAssociationEnd(reader, member);
//将解析成功的命令参数元素加入到命令的参数集合
association.Members.Add(member);
}
else
{
this.ProcessUnrecognizedElement(reader, null, container);
}
}
container.Associations.Add(association);
}
private void ResolveContainer(XmlReader reader, MetadataFile file)
{
if (reader.ReadState == ReadState.Initial)
{
reader.Read();
}
if (reader.NodeType != XmlNodeType.Element)
{
throw new InvalidOperationException("The reader position is invalid.");
}
switch (reader.NamespaceURI.ToLowerInvariant())
{
case XML_STORAGE_NAMESPACE_URI:
var storageContainer = new MetadataStorageContainer(reader.GetAttribute(XML_NAME_ATTRIBUTE), reader.GetAttribute("provider"), file);
file.Storages.Add(storageContainer);
using (reader = reader.ReadSubtree())
{
this.ResolveContainer(reader, storageContainer);
}
break;
case XML_CONCEPT_NAMESPACE_URI:
var conceptContainer = new MetadataConceptContainer(reader.GetAttribute(XML_NAME_ATTRIBUTE), file);
file.Concepts.Add(conceptContainer);
using (reader = reader.ReadSubtree())
{
this.ResolveContainer(reader, conceptContainer);
}
break;
default:
using (reader = reader.ReadSubtree())
{
this.ProcessUnrecognizedElement(reader, file, null);
}
break;
}
}
public MetadataAssociationCollection(MetadataConceptContainer container) : base(container)
{
}
public MetadataConceptEntityCollection(MetadataConceptContainer container) : base(container)
{
}