static public string Create(IFeatureClass fc, string typeName, IQueryFilter filter, string srsName, Filter_Capabilities filterCapabilites, GmlVersion version)
{
MemoryStream ms = new MemoryStream();
StreamWriter sw = new StreamWriter(ms, Encoding.UTF8);
sw.WriteLine(
@"<?xml version=""1.0"" ?>
<wfs:GetFeature
version=""1.0.0""
service=""WFS""
maxfeatures=""5000""
handle=""gView Query""
xmlns=""http://www.opengis.net/wfs""
xmlns:wfs=""http://www.opengis.net/wfs""
xmlns:ogc=""http://www.opengis.net/ogc""
xmlns:gml=""http://www.opengis.net/gml""
xmlns:gv=""http://www.gview.com/server""
xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance""
xsi:schemaLocation=""http://www.opengis.net/wfs ../wfs/1.1.0/WFS.xsd"">
<wfs:Query typeName=""" + typeName + @"""" + ((srsName != String.Empty) ? " srsName=\"" + srsName + "\"" : "") + " >");
if (filter.SubFields != "*" && filter.SubFields != "#ALL#")
{
foreach (string field in filter.SubFields.Split(' '))
{
sw.Write("<wfs:PropertyName>" + field + "</wfs:PropertyName>");
}
}
else
{
foreach (IField field in fc.Fields)
{
sw.Write("<wfs:PropertyName>" + field.name + "</wfs:PropertyName>");
}
}
sw.WriteLine(Filter.ToWFS(fc, filter, filterCapabilites, version));
sw.WriteLine(
@"</wfs:Query>
</wfs:GetFeature>");
sw.Flush();
ms.Position = 0;
byte[] bytes = new byte[ms.Length];
ms.Read(bytes, 0, (int)ms.Length);
sw.Close();
string ret = Encoding.UTF8.GetString(bytes).Trim();
return(ret);
}
public FeatureCursor(IFeatureClass fc, XmlNode featureCollection, XmlNamespaceManager ns, IQueryFilter filter, GmlVersion gmlVersion, Filter_Capabilities filterCapabilities)
: this(fc, featureCollection, ns, filter, gmlVersion)
{
//
// wenn Filter schon geometry operation implementiert
// ist es hier nicht noch einmal zu vergleichen...
//
if (filterCapabilities != null &&
_filter is ISpatialFilter &&
filterCapabilities.SupportsSpatialOperator(((ISpatialFilter)_filter).SpatialRelation))
{
_checkGeometryRelation = false;
}
}
public bool Open()
{
try
{
_elements.Clear();
string param = "REQUEST=GetCapabilities&VERSION=1.0.0&SERVICE=WFS";
string url = WMSDataset.Append2Url(_url, param);
string response = WebFunctions.HttpSendRequest(url, "GET", null);
response = WMSDataset.RemoveDOCTYPE(response);
XmlDocument doc = new XmlDocument();
doc.LoadXml(response);
XmlNamespaceManager ns = new XmlNamespaceManager(doc.NameTable);
ns.AddNamespace("WFS", "http://www.opengis.net/wfs");
ns.AddNamespace("OGC", "http://www.opengis.net/ogc");
ns.AddNamespace("GML", "http://www.opengis.net/gml");
XmlNode CapabilitiesNode = doc.SelectSingleNode("WFS:WFS_Capabilities/WFS:Capability", ns);
_getCapabilities = new GetCapabilities(CapabilitiesNode.SelectSingleNode("WFS:Request/WFS:GetCapabilities", ns), ns);
_decribeFeatureType = new DescribeFeatureType(CapabilitiesNode.SelectSingleNode("WFS:Request/WFS:DescribeFeatureType", ns), ns);
_getFeature = new GetFeature(CapabilitiesNode.SelectSingleNode("WFS:Request/WFS:GetFeature", ns), ns);
XmlNode FeatureTypeListNode = doc.SelectSingleNode("WFS:WFS_Capabilities/WFS:FeatureTypeList", ns);
_operations = new Operations(FeatureTypeListNode.SelectSingleNode("WFS:Operations", ns));
foreach (XmlNode featureTypeNode in FeatureTypeListNode.SelectNodes("WFS:FeatureType", ns))
{
string name = "";
string title = "";
XmlNode nameNode = featureTypeNode.SelectSingleNode("WFS:Name", ns);
XmlNode titleNode = featureTypeNode.SelectSingleNode("WFS:Title", ns);
WMSClass.SRS srs = new WMSClass.SRS(featureTypeNode, ns, "WFS");
name = title = nameNode.InnerText;
if (titleNode != null)
{
title = titleNode.InnerText;
}
WFSFeatureClass featureClass = new WFSFeatureClass(this, name, srs);
//DatasetElement dselement = new DatasetElement(featureClass);
ILayer dselement = LayerFactory.Create(featureClass);
if (dselement == null)
{
continue;
}
dselement.Title = name;
_elements.Add(dselement);
}
_filter_capabilites = new Filter_Capabilities(doc.SelectSingleNode("WFS:WFS_Capabilities/OGC:Filter_Capabilities", ns), ns);
return(true);
}
catch (Exception ex)
{
string err = ex.Message;
return(false);
}
}
