/// <summary>
/// Gets the ontology tree as a xml file
/// </summary>
/// <returns>the tree xml
/// </returns>
public string GetOntologyTree()
{
string soapAction = @"http://hiscentral.cuahsi.org/20100205/getOntologyTree";
StringBuilder soapEnvelope = new StringBuilder();
soapEnvelope.Append(soapEnvelopeHeader);
soapEnvelope.Append(@"<getOntologyTree ");
soapEnvelope.Append(cuahsiXmlns);
soapEnvelope.Append(@"><conceptKeyword>Hydrosphere</conceptKeyword></getOntologyTree>");
soapEnvelope.Append(soapEnvelopeClosing);
watch1.Reset();
WebResponse resp = SoapHelper.HttpSOAPRequest(soapEnvelope.ToString(), soapAction);
watch1.Stop();
Debug.WriteLine("getOntologyTree: " + watch1.ElapsedMilliseconds);
Stream stm = resp.GetResponseStream();
StreamReader r = new StreamReader(stm);
// process SOAP return doc here.
string result = r.ReadToEnd();
r.Close();
resp.Close();
return(result);
}
/// <summary>
/// Retrieves information about CUAHSI WaterOneFlow web services available in the specified region
/// (latitude / longitude bounding box).
/// </summary>
/// <param name="xmin">Minimum x (longitude)</param>
/// <param name="xmax">Maximum x (longitude)</param>
/// <param name="ymax">Maximum y (latitude)</param>
/// <param name="ymin">Minimum y (latitude)</param>
/// <returns></returns>
public IList <DataServiceInfo> GetServicesInBox(double xmin, double ymin, double xmax, double ymax)
{
List <DataServiceInfo> serviceList = new List <DataServiceInfo>();
string soapAction = cuahsiSoapAction + "GetServicesInBox2";
StringBuilder soap = new StringBuilder();
soap.Append(soapEnvelopeHeader);
soap.Append(@"<GetServicesInBox2 ");
soap.Append(cuahsiXmlns);
soap.Append(@">");
soap.Append(@"<xmin>");
soap.Append(xmin.ToString(CultureInfo.InvariantCulture));
soap.Append(@"</xmin>");
soap.Append(@"<ymin>");
soap.Append(ymin.ToString(CultureInfo.InvariantCulture));
soap.Append(@"</ymin>");
soap.Append(@"<xmax>");
soap.Append(xmax.ToString(CultureInfo.InvariantCulture));
soap.Append(@"</xmax>");
soap.Append(@"<ymax>");
soap.Append(ymax.ToString(CultureInfo.InvariantCulture));
soap.Append(@"</ymax>");
soap.Append(@"</GetServicesInBox2>");
soap.Append(soapEnvelopeClosing);
WebResponse response = SoapHelper.HttpSOAPRequest(soap.ToString(), soapAction);
Stream responseStream = response.GetResponseStream();
XmlTextReader reader = new XmlTextReader(responseStream);
while (reader.Read())
{
if (reader.NodeType == XmlNodeType.Element)
{
string readerName = reader.Name.ToLower();
if (readerName == "serviceinfo")
{
//Read the site information
DataServiceInfo service = ReadDataServiceInfo(reader);
if (service != null)
{
serviceList.Add(service);
}
}
}
}
reader.Close();
responseStream.Close();
response.Close();
return(serviceList);
}