public System.Collections.ArrayList DoSearchEx(string url, string terms)
{
struct_Records st_Recs = new struct_Records();
string escaped_terms = System.Uri.EscapeDataString(terms);
url = url.Replace("{terms}", escaped_terms);
string xml = helpers.MakeOpenHTTPRequest(url, SetProxy, "GET");
if (xml == null || xml == "")
{
return null;
}
else
{
return Process_SRU(xml);
}
}
private System.Collections.ArrayList Process_SRU(string xml)
{
System.Xml.XmlTextReader rd;
System.Collections.ArrayList tp = new System.Collections.ArrayList();
System.Xml.XmlDocument objDoc = new System.Xml.XmlDocument();
objDoc.XmlResolver = null;
System.Xml.XmlNamespaceManager Manager = new System.Xml.XmlNamespaceManager(objDoc.NameTable);
System.Xml.XmlNodeList objNodes;
string RetrievedRecords = "0";
System.Collections.ArrayList RecordSet = new System.Collections.ArrayList();
rd = new System.Xml.XmlTextReader(xml, System.Xml.XmlNodeType.Document, null);
string RecordPosition = "1";
while (rd.Read())
{
if (rd.NodeType == System.Xml.XmlNodeType.Element)
{
if (rd.Name.IndexOf("numberOfRecords") > -1)
{
RetrievedRecords = rd.ReadString();
}
if (rd.Name.IndexOf("recordData") > -1)
{
RecordSet.Add(rd.ReadInnerXml());
//this needs to go somewhere
}
if (rd.Name.IndexOf("recordPosition") > -1)
{
RecordPosition = rd.ReadString();
}
}
}
rd.Close();
for (int x = 0; x < RecordSet.Count; x++)
{
struct_Records st_recs = new struct_Records();
st_recs.xml = (string)RecordSet[x];
Manager.AddNamespace("marc", "http://www.loc.gov/MARC21/slim");
//try
//{
objDoc.LoadXml((string)RecordSet[x]);
objNodes = objDoc.SelectNodes("marc:record/marc:datafield[@tag='150']", Manager);
if (objNodes == null)
{
objNodes = objDoc.SelectNodes("record/datafield[@tag='150']", Manager);
}
foreach (System.Xml.XmlNode objNode in objNodes)
{
st_recs.xml = objNode.InnerXml;
System.Xml.XmlNodeList codes = objNode.SelectNodes("marc:subfield", Manager);
if (codes == null)
{
codes = objNode.SelectNodes("subfield", Manager);
}
foreach (System.Xml.XmlNode objN in codes)
{
st_recs.display += objN.InnerText + " -- ";
st_recs.main += "$" + objN.Attributes["code"].InnerText + objN.InnerText;
}
if (st_recs.display != null)
{
st_recs.display = st_recs.display.TrimEnd(" -".ToCharArray());
}
else
{
st_recs.display = "";
}
}
if (objNodes.Count <= 0)
{
st_recs.main = "Undefined";
st_recs.xml = "<undefined>undefined</undefined>";
}
//}
//catch
//{
// return null;
//}
tp.Add(st_recs);
}
RecordCount = System.Convert.ToInt32(RetrievedRecords);
return tp;
}