parseXML( MemoryStream XmlCompressedStream ) {
////////////////////////////////////////////////////
MemoryStream XmlDecompressedStream = new MemoryStream();
XmlDecompressedStream = Exflator.decompress(XmlCompressedStream);
/*** Rimozione dall'heap degli oggetti oramai non più utili ***/
XmlCompressedStream.Close();
XmlCompressedStream.Dispose();
XmlDecompressedStream.Position = 0;
XmlReader reader = XmlReader.Create(XmlDecompressedStream);
/*
/*** Controllo se il file XML contiene un albero ***
while (reader.Read()) {
if (reader.NodeType == XmlNodeType.Element) {
switch(reader.Name) {
case "tree":
break;
case "header":
return null;
}
}
}
*/
/*** Analisi del custom XML header ***/
/*** Strutture ed oggetti che verranno riempiti per costruire l'albero ***/
String treeName = "";
String treeType = "";
int treeSplit = 0;
int treeDepth = 0;
Dictionary<String, String[]> nodeAttributeList = new Dictionary<String, String[]>();
Dictionary<String, String[]> edgeAttributeList = new Dictionary<String, String[]>();
/*** Finchè non si raggiunge la treeDepth non si e' conclusa l'analisi dell'header ***/
bool EndOfTreeInfo = false;
while (reader.Read() && !EndOfTreeInfo) {
if (reader.NodeType == XmlNodeType.Element) {
switch(reader.Name) {
case "treeName":
while (reader.Read()) {
if (reader.NodeType == XmlNodeType.Text) {
treeName = reader.Value;
break;
}
}
break;
case "treeType":
while (reader.Read()) {
if (reader.NodeType == XmlNodeType.Text) {
treeType = reader.Value;
break;
}
}
break;
case "treeSplit":
while (reader.Read()) {
if (reader.NodeType == XmlNodeType.Text) {
treeSplit = Int32.Parse(reader.Value);
break;
}
}
break;
case "treeDepth":
while (reader.Read()) {
if (reader.NodeType == XmlNodeType.Text) {
treeDepth = Int32.Parse(reader.Value);
EndOfTreeInfo = true;
break;
}
}
break;
}
}
}
nodeAttributeList = FileEngine.nodeAttrParser(XmlDecompressedStream);
edgeAttributeList = FileEngine.edgeAttrParser(XmlDecompressedStream);
Albero Tree = new Albero(treeName, treeType, treeSplit, treeDepth, nodeAttributeList, edgeAttributeList);
/*** Analisi dell'XML elementTable ***/
restoreValues(Tree, XmlDecompressedStream);
return Tree;
} // End of method parseXML()
assembleXML( Albero Tree ) {
///////////////////////////////////
/*** Settaggio impostazioni XmlWriter ***/
XmlWriterSettings settings = new XmlWriterSettings();
settings.Indent = true;
settings.IndentChars = ("\t");
settings.Encoding = System.Text.Encoding.UTF8;
settings.NewLineChars = Environment.NewLine;
settings.NewLineHandling = NewLineHandling.Replace;
settings.OmitXmlDeclaration = false;
MemoryStream XmlStream = new MemoryStream();
XmlWriter writer = XmlWriter.Create(XmlStream, settings);
/*** Inizio scrittura del codice XML ***/
String depth = Convert.ToString(Tree.depth);
String splitSize = Convert.ToString(Tree.splitSize);
writer.WriteStartDocument();
writer.WriteStartElement("tree");
writer.WriteStartElement("header");
writer.WriteElementString("treeName", Tree.nome);
writer.WriteElementString("treeType", Tree.tipo);
writer.WriteElementString("treeSplit", splitSize);
writer.WriteElementString("treeDepth", depth);
writer.WriteStartElement("treeNodeAttributeList");
foreach (KeyValuePair<String, String[]> pair in Tree.VertexAttributeList) {
writer.WriteStartElement("treeNodeAttribute");
writer.WriteElementString("treeNodeAttrName", pair.Key.ToString());
writer.WriteElementString("treeNodeAttrType", pair.Value[0].ToString());
writer.WriteElementString("treeNodeAttrGenRule", pair.Value[1].ToString());
writer.WriteEndElement();
}
writer.WriteEndElement();
writer.WriteStartElement("treeEdgeAttributeList");
foreach (KeyValuePair<String, String[]> pair in Tree.EdgeAttributeList) {
writer.WriteStartElement("treeEdgeAttribute");
writer.WriteElementString("treeEdgeAttrName", pair.Key.ToString());
writer.WriteElementString("treeEdgeAttrType", pair.Value[0].ToString());
writer.WriteElementString("treeEdgeAttrGenRule", pair.Value[1].ToString());
writer.WriteEndElement();
}
writer.WriteEndElement();
/*** Chiusura di header ***/
writer.WriteEndElement();
writer.WriteStartElement("elementTable");
FileEngine.XmlTraversal(writer, Tree);
/*** Chiusura di elementTable ***/
writer.WriteEndElement();
/*** Chiusura di tree ***/
writer.WriteEndElement();
writer.WriteEndDocument();
writer.Flush();
MemoryStream XmlCompressedStream = new MemoryStream();
XmlCompressedStream = Exflator.compress(XmlStream);
XmlStream.Close();
XmlStream.Dispose();
return XmlCompressedStream;
} // End of method assembleXML()
