public Task <bool> SetConnectionString(string value)
{
_class = null;
_wfsDataset = null;
switch (ConfigTextStream.ExtractValue(value, "service").ToUpper())
{
case "WMS":
_type = SERVICE_TYPE.WMS;
_connection = ConfigTextStream.ExtractValue(value, "wms");
_class = new WMSClass(this);
break;
case "WFS":
_type = SERVICE_TYPE.WFS;
_wfsDataset = new WFSDataset(this, ConfigTextStream.ExtractValue(value, "wfs"));
break;
case "WMS_WFS":
_type = SERVICE_TYPE.WMS_WFS;
_connection = ConfigTextStream.ExtractValue(value, "wms");
_class = new WMSClass(this);
_wfsDataset = new WFSDataset(this, ConfigTextStream.ExtractValue(value, "wfs"));
break;
default:
return(Task.FromResult(false));
}
_connectionString = value;
return(Task.FromResult(true));
}
async public Task <bool> Open(gView.MapServer.IServiceRequestContext context)
{
string url = String.Empty;
try
{
_isOpened = true;
bool ret = true;
if (_wfsDataset != null)
{
ret = _wfsDataset.Open();
}
if (_class != null)
{
string param = "REQUEST=GetCapabilities&VERSION=1.1.1&SERVICE=WMS";
url = Append2Url(_connection, param);
string response = WebFunctions.HttpSendRequest(url, "GET", null,
ConfigTextStream.ExtractValue(_connectionString, "usr"),
ConfigTextStream.ExtractValue(_connectionString, "pwd"));
response = RemoveDOCTYPE(response);
_class.Init(response, _wfsDataset);
}
_state = (ret) ? DatasetState.opened : DatasetState.unknown;
return(ret);
}
catch (Exception ex)
{
await WMSClass.ErrorLogAsync(context, "GetCapabilities", url, ex);
_class = null;
_wfsDataset = null;
return(false);
}
}
internal void Init(string CapabilitiesString, WFSDataset wfsDataset)
{
try
{
_themes = new List <IWebServiceTheme>();
XmlDocument doc = new XmlDocument();
doc.LoadXml(CapabilitiesString);
XmlNode CapabilitiesNode = doc.SelectSingleNode("WMT_MS_Capabilities/Capability");
_getCapabilities = new GetCapabilities(CapabilitiesNode.SelectSingleNode("Request/GetCapabilities"));
_getMap = new GetMap(CapabilitiesNode.SelectSingleNode("Request/GetMap"));
_getFeatureInfo = new GetFeatureInfo(CapabilitiesNode.SelectSingleNode("Request/GetFeatureInfo"));
_describeLayer = new DescribeLayer(CapabilitiesNode.SelectSingleNode("Request/DescribeLayer"));
_getLegendGraphic = new GetLegendGraphic(CapabilitiesNode.SelectSingleNode("Request/GetLegendGraphic"));
_getStyles = new GetStyles(CapabilitiesNode.SelectSingleNode("Request/GetStyles"));
_exceptions = new WMSExceptions(CapabilitiesNode.SelectSingleNode("Exception"));
_userDefinedSymbolization = new UserDefinedSymbolization(CapabilitiesNode.SelectSingleNode("UserDefinedSymbolization"));
XmlNode service = CapabilitiesNode.SelectSingleNode("Layer");
XmlNode title = service.SelectSingleNode("Title");
if (title != null)
{
_name = title.InnerText;
}
_srs = new SRS(service);
this.SRSCode = _srs.Srs[_srs.SRSIndex];
foreach (XmlNode layer in service.SelectNodes("Layer"))
{
string name = "", Title = "";
XmlNode nameNode = layer.SelectSingleNode("Name");
XmlNode titleNode = layer.SelectSingleNode("Title");
if (nameNode == null)
{
continue;
}
name = Title = nameNode.InnerText;
if (titleNode != null)
{
Title = titleNode.InnerText;
}
XmlNodeList styles = layer.SelectNodes("Style");
WFSFeatureClass wfsFc = null;
if (wfsDataset != null)
{
IDatasetElement wfsElement = wfsDataset[name];
if (wfsElement != null && wfsElement.Class is WFSFeatureClass)
{
wfsFc = wfsElement.Class as WFSFeatureClass;
}
}
if (styles.Count == 0)
{
IClass wClass = null;
if (wfsFc != null)
{
wClass = wfsFc;
}
else if (layer.Attributes["queryable"] != null && layer.Attributes["queryable"].Value == "1")
{
wClass = new WMSQueryableThemeClass(_dataset, name, String.Empty, layer, _getFeatureInfo, _srs, _exceptions);
}
else
{
wClass = new WMSThemeClass(_dataset, name, String.Empty, layer);
}
IWebServiceTheme theme;
if (wClass is WFSFeatureClass)
{
theme = new WebServiceTheme2(
wClass, Title, name, true, this);
}
else
{
theme = new WebServiceTheme(
wClass, Title, name, true, this
);
}
_themes.Add(theme);
}
else
{
foreach (XmlNode style in styles)
{
string sName = "", sTitle = "";
XmlNode sNameNode = style.SelectSingleNode("Name");
XmlNode sTitleNode = style.SelectSingleNode("Title");
if (sNameNode == null)
{
continue;
}
sName = sTitle = sNameNode.InnerText;
if (sTitleNode != null)
{
sTitle = sTitleNode.InnerText;
}
IClass wClass = null;
if (wfsFc is WFSFeatureClass)
{
wClass = wfsFc;
((WFSFeatureClass)wClass).Style = sName;
}
else if (layer.Attributes["queryable"] != null && layer.Attributes["queryable"].Value == "1")
{
wClass = new WMSQueryableThemeClass(_dataset, name, sName, layer, _getFeatureInfo, _srs, _exceptions);
}
else
{
wClass = new WMSThemeClass(_dataset, name, sName, layer);
}
IWebServiceTheme theme;
if (wClass is WFSFeatureClass)
{
theme = new WebServiceTheme2(
wClass, Title + " (Style=" + sTitle + ")", name, true, this);
}
else
{
theme = new WebServiceTheme(
wClass, Title + " (Style=" + sTitle + ")", name, true, this
);
}
_themes.Add(theme);
}
}
}
doc = null;
}
catch (Exception ex)
{
string errMsg = ex.Message;
}
}