internal static OGCService Create(XElement layer)
{
GISEnvelope env = new GISEnvelope();
OGCService service = new OGCService("");
// <CRS>CRS:84</CRS>
//<EX_GeographicBoundingBox>
// <westBoundLongitude>-180.0</westBoundLongitude>
// <eastBoundLongitude>180.0</eastBoundLongitude>
// <southBoundLatitude>-90.0</southBoundLatitude>
// <northBoundLatitude>90.0</northBoundLatitude>
//</EX_GeographicBoundingBox>
foreach (XElement el in layer.Elements())
{
if (el.Name == "Name")
{
service._serviceName = layer.Element("Name").Value;
}
else if (el.Name == "Title")
{
service._description = el.Value;
}
else if (el.Name == "SRS")
{
env.CoordinateSystem = el.Value;
}
else if (el.Name == "CRS")
{
env.CoordinateSystem = el.Value;
}
else if (el.Name == "LatLonBoundingBox")
{
env.minX = double.Parse(el.Attribute("minx").Value);
env.maxX = double.Parse(el.Attribute("maxx").Value);
env.minY = double.Parse(el.Attribute("miny").Value);
env.maxY = double.Parse(el.Attribute("maxy").Value);
}
else if (el.Name == "BoundingBox")
{
env.minX = double.Parse(el.Attribute("minx").Value);
env.maxX = double.Parse(el.Attribute("maxx").Value);
env.minY = double.Parse(el.Attribute("miny").Value);
env.maxY = double.Parse(el.Attribute("maxy").Value);
env.CoordinateSystem = el.Attribute("SRS") != null ? el.Attribute("SRS").Value : el.Attribute("CRS").Value;
}
else if (el.Name == "Layer")
{
service._baseLayers.Add(OGCLayer.Create(el));
}
}
service._baseExtent = env;
return service;
}
public override GISService AddService(string serviceName, string serviceId, ServiceType serviceType)
{
OGCService svc = new OGCService(serviceName) { _type = serviceType, _serviceId = serviceId };
Server._services.Add(svc);
return svc;
}
private string GetUrl(OGC_OPERATION operation, OGC_SERVICE_TYPE type, OGCService service, IEnumerable<OGCLayer> layers, OGCEnvelope envelope, int width, int height, int x = 0, int y = 0)
{
StringBuilder requestUrl = new StringBuilder();
requestUrl.AppendFormat("http://{0}/{1}?", Server.Host, Server.ServletPath);
string stylename = string.Empty;
switch (operation)
{
case OGC_OPERATION.GetCapabilities:
requestUrl.AppendFormat("request=GetCapabilities&version={0}&service={1}", Server.Version, type);
break;
case OGC_OPERATION.GetMap:
requestUrl.AppendFormat(OGC_URL, service._getMapUrl, operation, type, Server.Version);
if (layers.Any() && layers.First().Style != null && layers.First().Style.Count > 0)
{
var style = from xx in layers where xx.Style != null && xx.Style.Count > 0 select xx.Style.First();
stylename = style.First().Name;
}
var fixedLayer = from qq in layers where qq.FixedHeight > 0 select qq;
if (fixedLayer.Count() > 0)
{
if (fixedLayer.First().Style != null && fixedLayer.First().Style.Count > 0)
{
stylename = fixedLayer.First().Style.First().Name;
}
requestUrl.AppendFormat(OGC_MAP, fixedLayer.First().FixedWidth, fixedLayer.First().FixedHeight, fixedLayer.First().Id, envelope, stylename);
}
else
{
string currentlayerId = BuildLayerString(layers, ref stylename);
requestUrl.AppendFormat(OGC_MAP, _imageWidth, height, currentlayerId, envelope, stylename, service.Format);
}
break;
case OGC_OPERATION.GetFeatureInfo:
string layerString = BuildLayerString(layers, ref stylename);
requestUrl.AppendFormat(OGC_URL, service._getMapUrl, operation, type, Server.Version);
requestUrl.AppendFormat(OGC_FEATURE_INFO, Server.Version, envelope, layerString, type, _imageWidth, _imageHeight, x, y);
break;
case OGC_OPERATION.GetFeature:
string layerString2 = BuildLayerString(layers, ref stylename);
requestUrl.AppendFormat(OGC_URL, service._getFeatureUrl, operation, type, "1.0.0");
requestUrl.AppendFormat(OGC_FEATURE, layerString2, envelope);
break;
case OGC_OPERATION.GetLegendGraphic:
if (layers.First().Style != null && layers.First().Style.Count > 0)
{
var url = from xx in layers.First().Style where !string.IsNullOrEmpty(xx.LegendURL) select xx;
if (url.Count() > 0) return url.First().LegendURL;
}
string legendlayerId = BuildLayerString(layers, ref stylename);
requestUrl.AppendFormat(OGC_URL, service._getMapUrl, operation, type, Server.Version);
requestUrl.AppendFormat(LEGEND_URL, Server.Version, legendlayerId, service.Format);
break;
}
if (!string.IsNullOrEmpty(Server.Map))
{
requestUrl.AppendFormat("&map={0}", Server.Map);
}
return requestUrl.ToString();
}
private bool ProcessServiceReturn(string responseString)
{
_requestProcessing = false;
// <BoundingBox SRS="EPSG:4269" minx="-180" miny="-90" maxx="180" maxy="90"/>
//<Layer queryable="1">
// <Name>world_countries_label</Name>
// <Title>Map Background - World Countries Labels</Title>
// <SRS>EPSG:4326</SRS>
// <LatLonBoundingBox minx="-180" miny="-90" maxx="180" maxy="90"/>
//</Layer>
try
{
string baseTag = "WMT_MS_Capabilities";
string xnamespace = string.Empty;
int idx = responseString.IndexOf("<WMT_MS_Capabilities");
if (idx < 0)
{
idx = responseString.IndexOf("<WMS_Capabilities");
baseTag = "WMS_Capabilities";
xnamespace = "http://www.opengis.net/wms";
}
XElement document = XElement.Parse(responseString.Substring(idx), LoadOptions.SetBaseUri);
IEnumerable<XElement> serviceElements = document.Elements(XName.Get("Capability", xnamespace)).First().Elements(XName.Get("Layer", xnamespace));
if (serviceElements.Count() == 1 && serviceElements.First().Elements(XName.Get("Layer", xnamespace)).Count() == 0)
{
}
else if (serviceElements.Count() == 1 && serviceElements.First().Elements(XName.Get("Layer", xnamespace)).First().Elements(XName.Get("Layer", xnamespace)).Count() > 0)
{
serviceElements = serviceElements.First().Elements(XName.Get("Layer", xnamespace));
}
_Server._services.Clear();
foreach (XElement selement in serviceElements)
{
GISService newSvc = new OGCService(selement.Elements(XName.Get("Title", xnamespace)).First().Value) { _description = selement.Elements(XName.Get("Title", xnamespace)).First().Value };
newSvc.BaseExtent = GetExtentFromElement(selement, xnamespace);
var layers = selement.Elements(XName.Get("Layer", xnamespace));
if (layers.Count() > 0)
{
foreach (XElement element in layers)
{
// <Layer queryable="1">
// <Name>world_countries_label</Name>
// <Title>Map Background - World Countries Labels</Title>
// <SRS>EPSG:4326</SRS>
// <LatLonBoundingBox minx="-180" miny="-90" maxx="180" maxy="90" />
//</Layer>
if (element.Descendants(XName.Get("Name", xnamespace)).Count() > 0)
{
GISLayerInfo layer = new OGCLayer(element.Descendants(XName.Get("Title", xnamespace)).First().Value, element.Descendants(XName.Get("Name", xnamespace)).First().Value);
if (element.Attribute(XName.Get("queryable", xnamespace)) != null)
{
layer.IsQueryable = element.Attribute(XName.Get("queryable", xnamespace)).Value == "1";
}
layer.BaseExtent = GetExtentFromElement(element, xnamespace);
newSvc.BaseLayers.Add(layer);
}
else if (element.Descendants(XName.Get("Layer", xnamespace)).Count() > 0)
{
IEnumerable<XElement> childElements = element.Descendants(XName.Get("Layer", xnamespace));
foreach (XElement childElement in childElements)
{
GISLayerInfo layer = new OGCLayer(element.Descendants(XName.Get("Title", xnamespace)).First().Value, childElement.Descendants(XName.Get("Name", xnamespace)).First().Value);
if (childElement.Attribute(XName.Get("queryable", xnamespace)) != null)
{
layer.IsQueryable = childElement.Attribute(XName.Get("queryable", xnamespace)).Value == "1";
}
layer.BaseExtent = GetExtentFromElement(childElement, xnamespace);
newSvc.BaseLayers.Add(layer);
}
}
}
}
else if (selement.Descendants().Count() > 0)
{
GISLayerInfo layer = new OGCLayer(selement.Descendants(XName.Get("Title", xnamespace)).First().Value, selement.Descendants(XName.Get("Name", xnamespace)).First().Value);
if (selement.Attribute(XName.Get("queryable", xnamespace)) != null)
{
layer.IsQueryable = selement.Attribute(XName.Get("queryable", xnamespace)).Value == "1";
}
layer.BaseExtent = GetExtentFromElement(selement, xnamespace);
newSvc.BaseLayers.Add(layer);
}
else
{
GISLayerInfo layer = new OGCLayer(newSvc._serviceName, newSvc._serviceId == null ? newSvc._serviceName : newSvc._serviceId);
layer.BaseExtent = GetExtentFromElement(selement, xnamespace);
newSvc.BaseLayers.Add(layer);
}
if (newSvc.Id == null) newSvc._serviceId = newSvc.Name;
_Server._services.Add(newSvc);
}
return true;
}
catch (Exception ex)
{
return false;
}
}
