public static void GetParseTreeInfo(Element e, ref string msg, ref int level)
{
if (e == null) return;
string tabs = "";
for (int i = 0; i < level; i++)
tabs += "\t";
msg += tabs;
msg += "Element " + e.Name + ": " + e.Value + "\n";
foreach (Libellus.XML.Attribute a in e.Attributes)
{
msg += tabs + "\tAttribute " + a.Name + ": " + a.Value + "\n";
}
if (e.Children.Count == 0)
{
return;
}
else
{
level++;
foreach(Element child in e.Children)
{
GetParseTreeInfo(child, ref msg, ref level);
}
level--;
}
}
/*
public List<Element> GetChildElement(string name)
{
List<Element> l = new List<Element>();
foreach(Element e in this.Children)
{
if (e.Name.Equals(name))
l.Add(e);
}
return l;
}
*/
public void AddChildElement(Element e)
{
this.Children.Add(e);
}
private void FindChildElementsHelper(List<Element> list, Element e, string name)
{
if (e.Children.Count == 0)
return;
foreach (Element child in e.Children)
{
if (child.Name.Equals(name))
{
list.Add(child);
}
FindChildElementsHelper(list, child, name);
}
}
/// <summary>
/// Receives a HashTable of Element objects that is received
/// from the XMLParser class, breaks down the Elements that are relevant,
/// and fills necessary text boxes
/// </summary>
/// <param name="table"></param>
public Constants.XMLResultReturnValue FillFromXMLResults(Element element)
{
Element bookListElement = element.GetFirstElementOf("BookList");
Element bookDataElement = element.GetFirstElementOf("BookData");
Element titleElement = element.GetFirstElementOf("Title");
Element titleLongElement = element.GetFirstElementOf("TitleLong");
Element authorsTextElement = element.GetFirstElementOf("Authors");
Element authorElement = element.GetFirstElementOf("AuthorsText");
Element publisherTextElement = element.GetFirstElementOf("PublisherText");
Element detailsElement = element.GetFirstElementOf("Details");
Element summaryElement = element.GetFirstElementOf("Summary");
Element notesElement = element.GetFirstElementOf("Notes");
Element awardsTextElement = element.GetFirstElementOf("AwardsText");
Element urlsTextElement = element.GetFirstElementOf("UrlsText");
Element editorsElement = element.GetFirstElementOf("EditorsText");
Element subjectsElement = element.GetFirstElementOf("Subjects");
Element pricesElement = element.GetFirstElementOf("Prices");
if (bookListElement.GetAttribute("total_results").Equals("0"))
return Constants.XMLResultReturnValue.NOT_FOUND;
this.Id = bookDataElement.GetAttribute("book_id");
this.ISBN = bookDataElement.GetAttribute("isbn");
this.ShortTitle = titleElement.Value;
this.LongTitle = titleLongElement.Value;
this.PublisherInfo = publisherTextElement.Value;
this.PublisherId = publisherTextElement.GetAttribute("publisher_id");
this.PhysicalDescription = detailsElement.GetAttribute("physical_description_text");
this.Language = detailsElement.GetAttribute("language");
this.Dewey = detailsElement.GetAttribute("dewey_decimal");
this.DeweyNormalized = detailsElement.GetAttribute("dewey_decimal_normalized");
this.Edition = detailsElement.GetAttribute("edition_info");
this.LibraryOfCongress = detailsElement.GetAttribute("lcc_number");
this.Summary = summaryElement.Value;
this.Notes = notesElement.Value;
//do subject info
this.Urls = urlsTextElement.Value;
this.Awards = awardsTextElement.Value;
//if there isn't any person elements, we do the best we can with what we have
if (authorsTextElement.Children.Count == 0 && !authorElement.Value.Equals(""))
{
Person p = new Person();
p.FirstName = Person.GetFirstNameFromPersonValue(authorElement.Value);
p.LastName = Person.GetLastNameFromPersonValue(authorElement.Value);
p.Id = Utils.CreateIdFromString(authorElement.Value);
this.Authors.Add(p);
}
else
{
foreach (Element child in authorsTextElement.FindChildElements("Person"))
{
Person p = new Person();
p.FillFromElement(child);
this.Authors.Add(p);
}
}
if (editorsElement.Children.Count == 0 && !editorsElement.Value.Equals(""))
{
Person p = new Person();
p.FirstName = Person.GetFirstNameFromPersonValue(editorsElement.Value);
p.LastName = Person.GetLastNameFromPersonValue(editorsElement.Value);
p.Id = Utils.CreateIdFromString(editorsElement.Value);
this.Editors.Add(p);
}
else
{
foreach (Element child in editorsElement.FindChildElements("Person"))
{
Person p = new Person();
p.FillFromElement(child);
this.Editors.Add(p);
}
}
foreach (Element subject in subjectsElement.FindChildElements("Subject"))
{
Subject s = new Subject();
s.Id = subject.GetAttribute("subject_id");
s.Name = subject.Value;
this.Subjects.Add(s);
}
int newCount = 0;
int usedCount = 0;
double newTotal = 0.0;
double usedTotal = 0.0;
foreach (Element price in pricesElement.FindChildElements("Price"))
{
string val = price.GetAttribute("price");
string isNew = price.GetAttribute("is_new");
if(isNew.Equals("1"))
{
try
{
newTotal += Double.Parse(val);
newCount++;
}
catch(Exception e)
{
Log.Instance.Out(e);
}
}
else if (isNew.Equals("0"))
{
try
{
usedTotal += Double.Parse(val);
usedCount++;
}
catch (Exception e)
{
Log.Instance.Out(e);
}
}
}
double newAvg = newTotal / newCount;
double usedAvg = usedTotal / usedCount;
this.NewPrice = newAvg.ToString("C");
this.UsedPrice = usedAvg.ToString("C");
if (this.NewPrice.Contains("NaN"))
this.NewPrice = "";
if (this.UsedPrice.Contains("NaN"))
this.UsedPrice = "";
return Constants.XMLResultReturnValue.SUCCESS;
}
public void FillFromElement(Element e)
{
this.FirstName = Person.GetFirstNameFromFull(e.Value);
this.LastName = Person.GetLastNameFromFull(e.Value);
this.Id = e.GetAttribute("person_id");
}
public static Element ParseXML(Stream xmlStream)
{
StreamReader textReader = new StreamReader(xmlStream);
string responseString = "";
while (!textReader.EndOfStream)
responseString += textReader.ReadLine();
StringReader stringReader = new StringReader(responseString);
XmlTextReader reader = new XmlTextReader(stringReader);
#if DEBUG
Console.Out.WriteLine("Original XML:");
responseString = responseString.Replace(">", ">\n");
Console.Out.WriteLine(responseString);
Console.Out.WriteLine("");
#endif
Element rootNode = new Element();
rootNode.IsRootNode = true;
//int lastDepth = -1;
try
{
Stack<Element> stack = new Stack<Element>();
stack.Push(rootNode);
while (reader.Read())
{
switch (reader.NodeType)
{
case XmlNodeType.Element:
Element newElement = new Element();
newElement.Name = reader.Name;
newElement.Parent = stack.Peek();
stack.Peek().AddChildElement(newElement);
while (reader.MoveToNextAttribute())
{
Libellus.XML.Attribute a = new Libellus.XML.Attribute();
a.Name = reader.Name;
a.Value = reader.ReadContentAsString();
newElement.Attributes.Add(a);
}
if(!newElement.Name.Equals("Price"))
stack.Push(newElement);
break;
case XmlNodeType.Text:
stack.Peek().Value = reader.Value;
break;
case XmlNodeType.EndElement:
stack.Pop();
break;
}
}
}
catch (Exception e1)
{
ExceptionHandler.HandleException(e1);
}
return rootNode;
}