private void PerformQueryTilesRequest(IServiceRequestContext context, XmlNode rType)
{
if (context == null || context.ServiceRequest == null)
{
_mapServer.Log("PerformQueryTilesRequest", loggingMethod.error, "no context or servicerequest");
return;
}
ServiceRequest serviceRequest = context.ServiceRequest;
_mapServer.Log("Service:" + serviceRequest.Service, loggingMethod.request, "TileService Request: QueryTiles");
try
{
int level = 0;
if (rType.Attributes["level"] != null)
{
level = int.Parse(rType.Attributes["level"].Value);
}
IServiceMap map = _mapServer[context];
if (map == null)
{
serviceRequest.Response = CreateException("Service not found");
return;
}
#region QueryGeometry
IGeometry queryGeometry = null;
#region Envelope
XmlNode envelopeNode = rType.SelectSingleNode("Envelope[@minx and @miny and @maxx and @maxy]");
if (envelopeNode != null)
{
Envelope queryEnvelope = new Envelope(
double.Parse(envelopeNode.Attributes["minx"].Value, _nhi),
double.Parse(envelopeNode.Attributes["miny"].Value, _nhi),
double.Parse(envelopeNode.Attributes["maxx"].Value, _nhi),
double.Parse(envelopeNode.Attributes["maxy"].Value, _nhi));
queryGeometry = queryEnvelope;
}
#endregion
#region Polygon
XmlNode polygonNode = rType.SelectSingleNode("Polygon");
if (polygonNode != null)
{
Polygon polygon = new Polygon();
foreach (XmlNode ringNode in polygonNode.SelectNodes("Ring"))
{
Ring ring = new Ring();
foreach (XmlNode pointNode in ringNode.SelectNodes("Point[@x and @y]"))
{
ring.AddPoint(new Point(double.Parse(pointNode.Attributes["x"].Value, _nhi),
double.Parse(pointNode.Attributes["y"].Value, _nhi)));
}
if (ring.PointCount > 2)
{
polygon.AddRing(ring);
}
}
if (polygon.RingCount == 0)
{
serviceRequest.Response = CreateException("Invalid Polygon definition node");
return;
}
queryGeometry = polygon;
}
#endregion
if (queryGeometry == null)
{
serviceRequest.Response = CreateException("No geometry (Envelope,Polygon) definition node");
return;
}
#endregion
#region Layer/Featureclass
XmlNode layerNode = rType.SelectSingleNode("Layer[@id]");
if (layerNode == null)
{
serviceRequest.Response = CreateException("No layer definition node");
return;
}
string id = layerNode.Attributes["id"].Value;
MapServerHelper.Layers layers = MapServerHelper.FindMapLayers(map, true, id);
if (layers.Count != 1)
{
serviceRequest.Response = CreateException("Can't find layer with id='" + id + "'");
return;
}
IFeatureClass fc = layers[0].Class as IFeatureClass;
if (fc == null || fc.FindField("GRID_LEVEL") == null ||
fc.FindField("GRID_ROW") == null ||
fc.FindField("GRID_COLUMN") == null ||
fc.FindField("FILE") == null)
{
serviceRequest.Response = CreateException("Featureclass is not a tilegrid");
return;
}
#endregion
#region Query
SpatialFilter filter = new SpatialFilter();
filter.AddField(fc.IDFieldName);
filter.AddField(fc.ShapeFieldName);
filter.AddField("GRID_LEVEL");
filter.AddField("GRID_ROW");
filter.AddField("GRID_COLUMN");
filter.AddField("FILE");
filter.Geometry = queryGeometry;
filter.WhereClause = "GRID_LEVEL=" + level;
StringBuilder sb = new StringBuilder();
sb.Append("<TileRequest><Tiles>");
using (IFeatureCursor cursor = fc.GetFeatures(filter))
{
IFeature feature;
while ((feature = cursor.NextFeature) != null)
{
sb.Append("<Tile");
#region Envelope
IEnvelope env = feature.Shape.Envelope;
sb.Append(" id='" + feature.OID + "'");
sb.Append(" minx='" + env.minx.ToString(_nhi) + "'");
sb.Append(" miny='" + env.miny.ToString(_nhi) + "'");
sb.Append(" maxx='" + env.maxx.ToString(_nhi) + "'");
sb.Append(" maxy='" + env.maxy.ToString(_nhi) + "'");
#endregion
#region File
FileInfo fi = new FileInfo(feature["FILE"].ToString());
sb.Append(" path='/" + feature["GRID_LEVEL"].ToString() + "/" + feature["GRID_ROW"].ToString() + "/" + feature["GRID_COLUMN"].ToString() + fi.Extension + "'");
#endregion
sb.Append(" />");
}
}
sb.Append("</Tiles></TileRequest>");
#endregion
serviceRequest.Response = sb.ToString();
}
catch (Exception ex)
{
_mapServer.Log("Service:" + serviceRequest.Service, loggingMethod.error, ex.Message + "\r\n" + ex.StackTrace);
serviceRequest.Response = CreateException(ex.Message);
return;
}
}
public void Request(IServiceRequestContext context)
{
if (context == null || context.ServiceRequest == null)
{
return;
}
if (_mapServer == null)
{
return;
}
MiscParameterDescriptor parameters = new MiscParameterDescriptor();
if (!parameters.ParseParameters(context.ServiceRequest.Request.Split('&')))
{
_mapServer.Log("Invalid Parameters", loggingMethod.error, context.ServiceRequest.Request);
return;
}
using (IServiceMap map = context.ServiceMap) // _mapServer[context];
{
if (map == null)
{
_mapServer.Log("Invalid Map", loggingMethod.error, context.ServiceRequest.Request);
return;
}
QueryFilter filter = parameters.BBOX != null ? new SpatialFilter() : new QueryFilter();
filter.SubFields = "*";
if (parameters.BBOX != null)
{
((SpatialFilter)filter).Geometry = parameters.BBOX;
}
ISpatialReference sRef = SpatialReference.FromID("epsg:4326");
filter.FeatureSpatialReference = sRef;
if (filter is SpatialFilter)
{
((SpatialFilter)filter).FilterSpatialReference = sRef;
}
// Get Layers
List <ILayer> queryLayers = new List <ILayer>();
foreach (string l in parameters.LAYERS)
{
if (l == String.Empty || l[0] != 'c')
{
continue;
}
MapServerHelper.Layers layers = MapServerHelper.FindMapLayers(map, _useTOC, l.Substring(1, l.Length - 1));
if (layers == null)
{
continue;
}
foreach (ILayer layer in layers)
{
queryLayers.Add(layer);
}
}
StringBuilder sb = new StringBuilder();
foreach (ILayer layer in queryLayers)
{
if (layer is IFeatureLayer && ((IFeatureLayer)layer).FeatureClass != null)
{
using (IFeatureCursor cursor = ((IFeatureLayer)layer).FeatureClass.Search(filter) as IFeatureCursor)
{
Stream stream = gView.Framework.OGC.KML.KML.ToKml(cursor, 1000);
stream.Position = 0;
byte[] bytes = new byte[(int)stream.Length];
stream.Read(bytes, 0, bytes.Length);
sb.Append(Encoding.UTF8.GetString(bytes));
}
}
}
context.ServiceRequest.Response = sb.ToString();
}
}
public void Request(IServiceRequestContext context)
{
if (context == null || context.ServiceRequest == null)
{
return;
}
if (_mapServer == null)
{
return;
}
MiscParameterDescriptor parameters = new MiscParameterDescriptor();
if (!parameters.ParseParameters(context.ServiceRequest.Request.Split('&')))
{
_mapServer.Log("Invalid Parameters", loggingMethod.error, context.ServiceRequest.Request);
return;
}
using (IServiceMap map = context.ServiceMap) // _mapServer[context];
{
if (map == null)
{
_mapServer.Log("Invalid Map", loggingMethod.error, context.ServiceRequest.Request);
return;
}
QueryFilter filter = parameters.BBOX != null ? new SpatialFilter() : new QueryFilter();
filter.SubFields = "*";
if (parameters.BBOX != null)
{
((SpatialFilter)filter).Geometry = parameters.BBOX;
}
if (!String.IsNullOrEmpty(parameters.SRS))
{
ISpatialReference sRef = SpatialReference.FromID(parameters.SRS);
filter.FeatureSpatialReference = sRef;
if (filter is SpatialFilter)
{
((SpatialFilter)filter).FilterSpatialReference = sRef;
}
}
// Get Layers
List <ILayer> queryLayers = new List <ILayer>();
foreach (string l in parameters.LAYERS)
{
if (l == String.Empty || l[0] != 'c')
{
continue;
}
MapServerHelper.Layers layers = MapServerHelper.FindMapLayers(map, _useTOC, l.Substring(1, l.Length - 1));
if (layers == null)
{
continue;
}
foreach (ILayer layer in layers)
{
queryLayers.Add(layer);
}
}
StringBuilder sb = new StringBuilder();
sb.Append("{'type':'FeatureCollection','features':[");
foreach (ILayer layer in queryLayers)
{
if (layer is IFeatureLayer && ((IFeatureLayer)layer).FeatureClass != null)
{
using (IFeatureCursor cursor = ((IFeatureLayer)layer).FeatureClass.Search(filter) as IFeatureCursor)
{
string json = gView.Framework.OGC.GeoJson.GeoJson.ToGeoJsonFeatures(cursor, parameters.MaxFeatures);
sb.Append(json);
}
}
}
sb.Append("]}");
context.ServiceRequest.Response = sb.ToString();
}
}
