/// <summary>
/// Add map service layer to map
/// </summary>
/// <param name="msi">Map service information</param>
private void AddMapServiceLayer(esri.gpt.csw.MapServiceInfo msi)
{
switch (msi.ServiceType.ToUpper())
{
case "WMS": AddLayerWMS(msi, false);
break;
case "WCS": AddLayerWCS(msi, false);
break;
default: AddLayerArcIMS(msi);
break;
}
}
/// <summary>
/// Add WCS map service layer to map
/// </summary>
/// <param name="msi">Map service information</param>
private void AddLayerWCS(esri.gpt.csw.MapServiceInfo msi, Boolean fromServerUrl)
{
if (msi == null) { throw new ArgumentNullException(); }
try
{
string _mapServerUrl = AppendQuestionOrAmpersandToUrlString(msi.Server);
// append serviceParam to server url
// todo: does msi.ServiceParam have a leading "?" or "&"?
if (msi.ServiceParam.Length > 0 && !fromServerUrl)
{
_mapServerUrl = _mapServerUrl + msi.ServiceParam;
_mapServerUrl = AppendQuestionOrAmpersandToUrlString(_mapServerUrl);
}
// MapServiceInfo msi = new MapServiceInfo();
String[] s = _mapServerUrl.Trim().Split('?');
_mapServerUrl = s[0] + "?request=GetCapabilities&service=WCS";
CswClient client = new CswClient();
String response = client.SubmitHttpRequest("GET", _mapServerUrl, "");
XmlDocument xmlDocument = new XmlDocument();
try { xmlDocument.LoadXml(response); }
catch (XmlException xmlEx)
{ }
XmlNodeList contentMetadata = xmlDocument.GetElementsByTagName("ContentMetadata");
if (contentMetadata != null && contentMetadata.Count > 0)
{
XmlNodeList coverageList = contentMetadata.Item(0).ChildNodes;
foreach (XmlNode coverage in coverageList) {
XmlNodeList nodes = coverage.ChildNodes;
foreach(XmlNode node in nodes)
{
if (node.Name.ToLower().Equals("name"))
{
_mapServerUrl = s[0] + "?request=GetCoverage&service=WCS&format=GeoTIFF&coverage=" + node.InnerText;
try{
String filePath = client.SubmitHttpRequest("DOWNLOAD", _mapServerUrl, "");
AddAGSService(filePath);
} catch(Exception e){
ShowErrorMessageBox("WCS service with no GeoTiff interface");
return;
}
}
}
}
}
}
catch (Exception ex)
{
// ShowErrorMessageBox(StringResources.AddWcsLayerFailed + "\r\n" + ex.Message);
}
}
/// <summary>
/// Add WMS map service layer to map
/// </summary>
/// <param name="msi">Map service information</param>
private void AddLayerWMS(esri.gpt.csw.MapServiceInfo msi, Boolean fromServerUrl)
{
if (msi == null) { throw new ArgumentNullException(); }
try
{
string url = AppendQuestionOrAmpersandToUrlString(msi.Server);
// append serviceParam to server url
// todo: does msi.ServiceParam have a leading "?" or "&"?
if (msi.ServiceParam.Length > 0 || !fromServerUrl)
{
url = url + msi.ServiceParam;
url = AppendQuestionOrAmpersandToUrlString(url);
}
IPropertySet propertySet = new PropertySetClass();
propertySet.SetProperty("URL", url);
IMxDocument mxDoc = (IMxDocument)m_application.Document;
IMap map = (IMap)mxDoc.FocusMap;
IActiveView activeView = (IActiveView)map;
IWMSGroupLayer wmsGroupLayer = (IWMSGroupLayer)new WMSMapLayerClass();
IWMSConnectionName wmsConnectionName = new WMSConnectionName();
wmsConnectionName.ConnectionProperties = propertySet;
// connect to wms service
IDataLayer dataLayer;
bool connected = false;
try
{
dataLayer = (IDataLayer)wmsGroupLayer;
IName connName = (IName)wmsConnectionName;
connected = dataLayer.Connect(connName);
}
catch (Exception ex)
{
ShowErrorMessageBox (StringResources.ConnectToMapServiceFailed + "\r\n" + ex.Message);
connected = false;
}
if (!connected) return;
// get service description out of the layer. the service description contains
// inforamtion about the wms categories and layers supported by the service
IWMSServiceDescription wmsServiceDesc = wmsGroupLayer.WMSServiceDescription;
IWMSLayerDescription wmsLayerDesc;
ILayer newLayer;
ILayer layer;
IWMSLayer newWmsLayer;
IWMSGroupLayer newWmsGroupLayer;
/* for (int i = 0; i < wmsServiceDesc.LayerDescriptionCount; i++)
{
newLayer = null;
wmsLayerDesc = wmsServiceDesc.get_LayerDescription(i);
if (wmsLayerDesc.LayerDescriptionCount == 0)
{
// wms layer
newWmsLayer = wmsGroupLayer.CreateWMSLayer(wmsLayerDesc);
newLayer = (ILayer)newWmsLayer;
if (newLayer == null) { throw new Exception(StringResources.CreateWmsLayerFailed); };
}
else
{
// wms group layer
newWmsGroupLayer = wmsGroupLayer.CreateWMSGroupLayers(wmsLayerDesc);
newLayer = (ILayer)newWmsGroupLayer;
if (newLayer == null) { throw new Exception(StringResources.CreateWmsGroupLayerFailed); }
}
// add newly created layer
// if(wmsGroupLayer.get_Layer(i).Name != newLayer.Name)
wmsGroupLayer.InsertLayer(newLayer, 0);
}*/
// configure the layer before adding it to the map
layer = (ILayer)wmsGroupLayer;
layer.Name = wmsServiceDesc.WMSTitle;
ExpandLayer(layer, true);
SetLayerVisibility(layer, true);
// add to focus map
map.AddLayer(layer);
return;
}
catch (Exception ex)
{
ShowErrorMessageBox (StringResources.AddWmsLayerFailed + "\r\n" + ex.Message);
}
}
/// <summary>
/// Add ArcIMS map service layer to map
/// </summary>
/// <param name="msi">Map service information</param>
private void AddLayerArcIMS(esri.gpt.csw.MapServiceInfo msi)
{
if (msi == null) { throw new ArgumentNullException(); }
try
{
IMxDocument mxDoc = (IMxDocument)m_application.Document;
IMap map = (IMap)mxDoc.FocusMap;
IActiveView activeView = (IActiveView)map;
bool isAlreadyInMap = false;
if (isAlreadyInMap)
{
ShowErrorMessageBox (StringResources.MapServiceLayerAlreadyExistInMap);
return;
}
else
{
//IIMSConnection imsConnection;
IIMSMapLayer imsMapLayer;
// create service description based on provided map service info
IIMSServiceDescription imsServiceDesc = new IMSServiceNameClass();
imsServiceDesc.URL = msi.Server;
imsServiceDesc.Name = msi.Service;
imsServiceDesc.ServiceType = acServiceType.acMapService;
// note: add as image map service
// todo: research on the relationship between MapServiceInfo.ServiceType and IIMSServiceDescription
#region acServiceType info
#endregion
// connect to service
try
{
imsMapLayer = new IMSMapLayerClass();
imsMapLayer.ConnectToService(imsServiceDesc);
}
catch (System.Runtime.InteropServices.COMException ex)
{
// note: when a site request usr/pwd to connect, user may choose "cancel". Then, imsMapLayer.ConnectToService()
// would then throw an System.Runtime.InteropServices.COMException. Catch it but no need to display
// any error message.
System.Diagnostics.Trace.WriteLine(ex.Message, "NoConnectionToService");
return;
}
catch (Exception ex)
{
ShowErrorMessageBox(StringResources.ConnectToMapServiceFailed + "\r\n" + ex.Message);
return;
}
ILayer layer = (ILayer)imsMapLayer;
ExpandLayer(layer, true);
SetLayerVisibility(layer, true);
// Add the layer
mxDoc.AddLayer(imsMapLayer);
}
}
catch (Exception ex)
{
ShowErrorMessageBox(StringResources.AddArcimsLayerFailed + "\r\n" + ex.Message);
}
}
