/// <summary>
/// This method gets metadata about the featuretype to query from 'GetCapabilities' and 'DescribeFeatureType'.
/// </summary>
private void GetFeatureTypeInfo()
{
try
{
_featureTypeInfo = new WfsFeatureTypeInfo();
WFSClientHTTPConfigurator config = new WFSClientHTTPConfigurator(_textResources);
_featureTypeInfo.Prefix = _nsPrefix;
_featureTypeInfo.Name = _featureType;
string featureQueryName = string.IsNullOrEmpty(_nsPrefix)
? _featureType
: _nsPrefix + ":" + _featureType;
/***************************/
/* GetCapabilities request /
/***************************/
if (_featureTypeInfoQueryManager == null)
{
/* Initialize IXPathQueryManager with configured HttpClientUtil */
_featureTypeInfoQueryManager =
new XPathQueryManager_CompiledExpressionsDecorator(new XPathQueryManager());
_featureTypeInfoQueryManager.SetDocumentToParse(
config.configureForWfsGetCapabilitiesRequest(_httpClientUtil, _getCapabilitiesUri));
/* Namespaces for XPath queries */
_featureTypeInfoQueryManager.AddNamespace(_textResources.NSWFSPREFIX, _textResources.NSWFS);
_featureTypeInfoQueryManager.AddNamespace(_textResources.NSOWSPREFIX, _textResources.NSOWS);
_featureTypeInfoQueryManager.AddNamespace(_textResources.NSXLINKPREFIX, _textResources.NSXLINK);
}
/* Service URI (for WFS GetFeature request) */
_featureTypeInfo.ServiceURI = _featureTypeInfoQueryManager.GetValueFromNode
(_featureTypeInfoQueryManager.Compile(_textResources.XPATH_GETFEATURERESOURCE));
/* If no GetFeature URI could be found, try GetCapabilities URI */
if (_featureTypeInfo.ServiceURI == null) _featureTypeInfo.ServiceURI = _getCapabilitiesUri;
else if (_featureTypeInfo.ServiceURI.EndsWith("?", StringComparison.Ordinal))
_featureTypeInfo.ServiceURI =
_featureTypeInfo.ServiceURI.Remove(_featureTypeInfo.ServiceURI.Length - 1);
/* URI for DescribeFeatureType request */
string describeFeatureTypeUri = _featureTypeInfoQueryManager.GetValueFromNode
(_featureTypeInfoQueryManager.Compile(_textResources.XPATH_DESCRIBEFEATURETYPERESOURCE));
/* If no DescribeFeatureType URI could be found, try GetCapabilities URI */
if (describeFeatureTypeUri == null) describeFeatureTypeUri = _getCapabilitiesUri;
else if (describeFeatureTypeUri.EndsWith("?", StringComparison.Ordinal))
describeFeatureTypeUri =
describeFeatureTypeUri.Remove(describeFeatureTypeUri.Length - 1);
/* Spatial reference ID */
_featureTypeInfo.SRID = _featureTypeInfoQueryManager.GetValueFromNode(
_featureTypeInfoQueryManager.Compile(_textResources.XPATH_SRS),
new[] {new DictionaryEntry("_param1", featureQueryName)});
/* If no SRID could be found, try '4326' by default */
if (_featureTypeInfo.SRID == null) _featureTypeInfo.SRID = "4326";
else
/* Extract number */
_featureTypeInfo.SRID = _featureTypeInfo.SRID.Substring(_featureTypeInfo.SRID.LastIndexOf(":") + 1);
/* Bounding Box */
IXPathQueryManager bboxQuery = _featureTypeInfoQueryManager.GetXPathQueryManagerInContext(
_featureTypeInfoQueryManager.Compile(_textResources.XPATH_BBOX),
new[] {new DictionaryEntry("_param1", featureQueryName)});
if (bboxQuery != null)
{
WfsFeatureTypeInfo.BoundingBox bbox = new WfsFeatureTypeInfo.BoundingBox();
NumberFormatInfo formatInfo = new NumberFormatInfo();
formatInfo.NumberDecimalSeparator = ".";
string bboxVal = null;
if (_wfsVersion == WFSVersionEnum.WFS1_0_0)
bbox._MinLat =
Convert.ToDouble(
(bboxVal =
bboxQuery.GetValueFromNode(bboxQuery.Compile(_textResources.XPATH_BOUNDINGBOXMINY))) !=
null
? bboxVal
: "0.0", formatInfo);
else if (_wfsVersion == WFSVersionEnum.WFS1_1_0)
bbox._MinLat =
Convert.ToDouble(
(bboxVal =
bboxQuery.GetValueFromNode(bboxQuery.Compile(_textResources.XPATH_BOUNDINGBOXMINY))) !=
null
? bboxVal.Substring(bboxVal.IndexOf(' ') + 1)
: "0.0", formatInfo);
if (_wfsVersion == WFSVersionEnum.WFS1_0_0)
bbox._MaxLat =
Convert.ToDouble(
(bboxVal =
bboxQuery.GetValueFromNode(bboxQuery.Compile(_textResources.XPATH_BOUNDINGBOXMAXY))) !=
null
? bboxVal
: "0.0", formatInfo);
else if (_wfsVersion == WFSVersionEnum.WFS1_1_0)
bbox._MaxLat =
Convert.ToDouble(
(bboxVal =
bboxQuery.GetValueFromNode(bboxQuery.Compile(_textResources.XPATH_BOUNDINGBOXMAXY))) !=
null
? bboxVal.Substring(bboxVal.IndexOf(' ') + 1)
: "0.0", formatInfo);
if (_wfsVersion == WFSVersionEnum.WFS1_0_0)
bbox._MinLong =
Convert.ToDouble(
(bboxVal =
bboxQuery.GetValueFromNode(bboxQuery.Compile(_textResources.XPATH_BOUNDINGBOXMINX))) !=
null
? bboxVal
: "0.0", formatInfo);
else if (_wfsVersion == WFSVersionEnum.WFS1_1_0)
bbox._MinLong =
Convert.ToDouble(
(bboxVal =
bboxQuery.GetValueFromNode(bboxQuery.Compile(_textResources.XPATH_BOUNDINGBOXMINX))) !=
null
? bboxVal.Substring(0, bboxVal.IndexOf(' ') + 1)
: "0.0", formatInfo);
if (_wfsVersion == WFSVersionEnum.WFS1_0_0)
bbox._MaxLong =
Convert.ToDouble(
(bboxVal =
bboxQuery.GetValueFromNode(bboxQuery.Compile(_textResources.XPATH_BOUNDINGBOXMAXX))) !=
null
? bboxVal
: "0.0", formatInfo);
else if (_wfsVersion == WFSVersionEnum.WFS1_1_0)
bbox._MaxLong =
Convert.ToDouble(
(bboxVal =
bboxQuery.GetValueFromNode(bboxQuery.Compile(_textResources.XPATH_BOUNDINGBOXMAXX))) !=
null
? bboxVal.Substring(0, bboxVal.IndexOf(' ') + 1)
: "0.0", formatInfo);
_featureTypeInfo.BBox = bbox;
}
//Continue with a clone in order to preserve the 'GetCapabilities' response
IXPathQueryManager describeFeatureTypeQueryManager = _featureTypeInfoQueryManager.Clone();
/******************************/
/* DescribeFeatureType request /
/******************************/
/* Initialize IXPathQueryManager with configured HttpClientUtil */
describeFeatureTypeQueryManager.ResetNamespaces();
describeFeatureTypeQueryManager.SetDocumentToParse(config.configureForWfsDescribeFeatureTypeRequest
(_httpClientUtil, describeFeatureTypeUri,
featureQueryName));
/* Namespaces for XPath queries */
describeFeatureTypeQueryManager.AddNamespace(_textResources.NSSCHEMAPREFIX, _textResources.NSSCHEMA);
describeFeatureTypeQueryManager.AddNamespace(_textResources.NSGMLPREFIX, _textResources.NSGML);
/* Get target namespace */
string targetNs = describeFeatureTypeQueryManager.GetValueFromNode(
describeFeatureTypeQueryManager.Compile(_textResources.XPATH_TARGETNS));
if (targetNs != null)
_featureTypeInfo.FeatureTypeNamespace = targetNs;
/* Get geometry */
string geomType = _geometryType == GeometryTypeEnum.Unknown ? null : _geometryType.ToString();
string geomName = null;
string geomComplexTypeName = null;
/* The easiest way to get geometry info, just ask for the 'gml'-prefixed type-attribute...
Simple, but effective in 90% of all cases...this is the standard GeoServer creates.*/
/* example: <xs:element nillable = "false" name = "the_geom" maxOccurs = "1" type = "gml:MultiPolygonPropertyType" minOccurs = "0" /> */
/* Try to get context of the geometry element by asking for a 'gml:*' type-attribute */
IXPathQueryManager geomQuery = describeFeatureTypeQueryManager.GetXPathQueryManagerInContext(
describeFeatureTypeQueryManager.Compile(_textResources.XPATH_GEOMETRYELEMENT_BYTYPEATTRIBUTEQUERY));
if (geomQuery != null)
{
geomName = geomQuery.GetValueFromNode(geomQuery.Compile(_textResources.XPATH_NAMEATTRIBUTEQUERY));
/* Just, if not set manually... */
if (geomType == null)
geomType = geomQuery.GetValueFromNode(geomQuery.Compile(_textResources.XPATH_TYPEATTRIBUTEQUERY));
}
else
{
/* Try to get context of a complexType with element ref ='gml:*' - use the global context */
/* example:
<xs:complexType name="geomType">
<xs:sequence>
<xs:element ref="gml:polygonProperty" minOccurs="0"/>
</xs:sequence>
</xs:complexType> */
geomQuery = describeFeatureTypeQueryManager.GetXPathQueryManagerInContext(
describeFeatureTypeQueryManager.Compile(
_textResources.XPATH_GEOMETRYELEMENTCOMPLEXTYPE_BYELEMREFQUERY));
if (geomQuery != null)
{
/* Ask for the name of the complextype - use the local context*/
geomComplexTypeName =
geomQuery.GetValueFromNode(geomQuery.Compile(_textResources.XPATH_NAMEATTRIBUTEQUERY));
if (geomComplexTypeName != null)
{
/* Ask for the name of an element with a complextype of 'geomComplexType' - use the global context */
geomName =
describeFeatureTypeQueryManager.GetValueFromNode(
describeFeatureTypeQueryManager.Compile(
_textResources.XPATH_GEOMETRY_ELEMREF_GEOMNAMEQUERY), new[]
{
new DictionaryEntry
("_param1",
_featureTypeInfo
.
FeatureTypeNamespace)
,
new DictionaryEntry
("_param2",
geomComplexTypeName)
});
}
else
{
/* The geometry element must be an ancestor, if we found an anonymous complextype */
/* Ask for the element hosting the anonymous complextype - use the global context */
/* example:
<xs:element name ="SHAPE">
<xs:complexType>
<xs:sequence>
<xs:element ref="gml:lineStringProperty" minOccurs="0"/>
</xs:sequence>
</xs:complexType>
</xs:element> */
geomName =
describeFeatureTypeQueryManager.GetValueFromNode(
describeFeatureTypeQueryManager.Compile(
_textResources.XPATH_GEOMETRY_ELEMREF_GEOMNAMEQUERY_ANONYMOUSTYPE));
}
/* Just, if not set manually... */
if (geomType == null)
{
/* Ask for the 'ref'-attribute - use the local context */
if (
(geomType =
geomQuery.GetValueFromNode(
geomQuery.Compile(_textResources.XPATH_GEOMETRY_ELEMREF_GMLELEMENTQUERY))) != null)
{
switch (geomType)
{
case "gml:pointProperty":
geomType = "PointPropertyType";
break;
case "gml:lineStringProperty":
geomType = "LineStringPropertyType";
break;
case "gml:curveProperty":
geomType = "CurvePropertyType";
break;
case "gml:polygonProperty":
geomType = "PolygonPropertyType";
break;
case "gml:surfaceProperty":
geomType = "SurfacePropertyType";
break;
case "gml:multiPointProperty":
geomType = "MultiPointPropertyType";
break;
case "gml:multiLineStringProperty":
geomType = "MultiLineStringPropertyType";
break;
case "gml:multiCurveProperty":
geomType = "MultiCurvePropertyType";
break;
case "gml:multiPolygonProperty":
geomType = "MultiPolygonPropertyType";
break;
case "gml:multiSurfaceProperty":
geomType = "MultiSurfacePropertyType";
break;
// e.g. 'gml:_geometryProperty'
default:
break;
}
}
}
}
}
if (geomName == null)
/* Default value for geometry column = geom */
geomName = "geom";
if (geomType == null)
/* Set geomType to an empty string in order to avoid exceptions.
The geometry type is not necessary by all means - it can be detected in 'GetFeature' response too.. */
geomType = string.Empty;
/* Remove prefix */
if (geomType.Contains(":"))
geomType = geomType.Substring(geomType.IndexOf(":") + 1);
WfsFeatureTypeInfo.GeometryInfo geomInfo = new WfsFeatureTypeInfo.GeometryInfo();
geomInfo._GeometryName = geomName;
geomInfo._GeometryType = geomType;
_featureTypeInfo.Geometry = geomInfo;
}
finally
{
_httpClientUtil.Close();
}
}
/// <summary>
/// Gets the features within the specified <see cref="GeoAPI.Geometries.Envelope"/>
/// </summary>
/// <param name="bbox"></param>
/// <returns>Features within the specified <see cref="GeoAPI.Geometries.Envelope"/></returns>
public Collection<IGeometry> GetGeometriesInView(Envelope bbox)
{
if (_featureTypeInfo == null) return null;
var geoms = new Collection<IGeometry>();
string geometryTypeString = _featureTypeInfo.Geometry._GeometryType;
GeometryFactory geomFactory = null;
if (!string.IsNullOrEmpty(_label))
{
_labelInfo = new FeatureDataTable();
_labelInfo.Columns.Add(_label);
// Turn off quick geometries, if a label is applied...
_quickGeometries = false;
}
// Configuration for GetFeature request */
WFSClientHTTPConfigurator config = new WFSClientHTTPConfigurator(_textResources);
config.configureForWfsGetFeatureRequest(_httpClientUtil, _featureTypeInfo, _label, bbox, _ogcFilter,
_getFeatureGETRequest);
try
{
switch (geometryTypeString)
{
/* Primitive geometry elements */
// GML2
case "PointPropertyType":
geomFactory = new PointFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML2
case "LineStringPropertyType":
geomFactory = new LineStringFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML2
case "PolygonPropertyType":
geomFactory = new PolygonFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML3
case "CurvePropertyType":
geomFactory = new LineStringFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML3
case "SurfacePropertyType":
geomFactory = new PolygonFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
/* Aggregate geometry elements */
// GML2
case "MultiPointPropertyType":
if (_multiGeometries)
geomFactory = new MultiPointFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
else
geomFactory = new PointFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML2
case "MultiLineStringPropertyType":
if (_multiGeometries)
geomFactory = new MultiLineStringFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
else
geomFactory = new LineStringFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML2
case "MultiPolygonPropertyType":
if (_multiGeometries)
geomFactory = new MultiPolygonFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
else
geomFactory = new PolygonFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML3
case "MultiCurvePropertyType":
if (_multiGeometries)
geomFactory = new MultiLineStringFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
else
geomFactory = new LineStringFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML3
case "MultiSurfacePropertyType":
if (_multiGeometries)
geomFactory = new MultiPolygonFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
else
geomFactory = new PolygonFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// .e.g. 'gml:GeometryAssociationType' or 'GeometryPropertyType'
//It's better to set the geometry type manually, if it is known...
default:
geomFactory = new UnspecifiedGeometryFactory_WFS1_0_0_GML2(_httpClientUtil, _featureTypeInfo,
_multiGeometries, _quickGeometries,
_labelInfo);
geoms = geomFactory.createGeometries();
return geoms;
}
geoms = _quickGeometries
? geomFactory.createQuickGeometries(geometryTypeString)
: geomFactory.createGeometries();
geomFactory.Dispose();
return geoms;
}
// Free resources (net connection of geometry factory)
finally
{
if (geomFactory != null)
{
geomFactory.Dispose();
}
}
}
public System.Collections.ObjectModel.Collection <SharpMap.Geometries.Geometry> GetGeometriesInView(SharpMap.Geometries.BoundingBox bbox)
{
if (_FeatureTypeInfo == null)
{
return(null);
}
System.Collections.ObjectModel.Collection <Geometry> geoms = new System.Collections.ObjectModel.Collection <Geometry>();
string geometryTypeString = _FeatureTypeInfo.Geometry._GeometryType;
GeometryFactory geomFactory = null;
if (!string.IsNullOrEmpty(_Label))
{
_LabelInfo = new FeatureDataTable();
_LabelInfo.Columns.Add(_Label);
// Turn off quick geometries, if a label is applied...
_QuickGeometries = false;
}
// Configuration for GetFeature request */
WFSClientHTTPConfigurator config = new WFSClientHTTPConfigurator(_TextResources);
config.configureForWfsGetFeatureRequest(_HttpClientUtil, _FeatureTypeInfo, _Label, bbox, _OGCFilter, _GetFeatureGETRequest);
try
{
switch (geometryTypeString)
{
/* Primitive geometry elements */
// GML2
case "PointPropertyType":
geomFactory = new PointFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
break;
// GML2
case "LineStringPropertyType":
geomFactory = new LineStringFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
break;
// GML2
case "PolygonPropertyType":
geomFactory = new PolygonFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
break;
// GML3
case "CurvePropertyType":
geomFactory = new LineStringFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
break;
// GML3
case "SurfacePropertyType":
geomFactory = new PolygonFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
break;
/* Aggregate geometry elements */
// GML2
case "MultiPointPropertyType":
if (_MultiGeometries)
{
geomFactory = new MultiPointFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
}
else
{
geomFactory = new PointFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
}
break;
// GML2
case "MultiLineStringPropertyType":
if (_MultiGeometries)
{
geomFactory = new MultiLineStringFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
}
else
{
geomFactory = new LineStringFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
}
break;
// GML2
case "MultiPolygonPropertyType":
if (_MultiGeometries)
{
geomFactory = new MultiPolygonFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
}
else
{
geomFactory = new PolygonFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
}
break;
// GML3
case "MultiCurvePropertyType":
if (_MultiGeometries)
{
geomFactory = new MultiLineStringFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
}
else
{
geomFactory = new LineStringFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
}
break;
// GML3
case "MultiSurfacePropertyType":
if (_MultiGeometries)
{
geomFactory = new MultiPolygonFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
}
else
{
geomFactory = new PolygonFactory(_HttpClientUtil, _FeatureTypeInfo, _LabelInfo);
}
break;
// .e.g. 'gml:GeometryAssociationType' or 'GeometryPropertyType'
//It's better to set the geometry type manually, if it is known...
default:
geomFactory = new UnspecifiedGeometryFactory_WFS1_0_0_GML2(_HttpClientUtil, _FeatureTypeInfo, _MultiGeometries, _QuickGeometries, _LabelInfo);
geoms = geomFactory.createGeometries();
return(geoms);
}
geoms = _QuickGeometries ? geomFactory.createQuickGeometries(geometryTypeString) : geomFactory.createGeometries();
geomFactory.Dispose();
return(geoms);
}
// Free resources (net connection of geometry factory)
finally
{
geomFactory.Dispose();
}
}
/// <summary>
/// This method gets metadata about the featuretype to query from 'GetCapabilities' and 'DescribeFeatureType'.
/// </summary>
private void GetFeatureTypeInfo()
{
try
{
_FeatureTypeInfo = new WfsFeatureTypeInfo();
WFSClientHTTPConfigurator config = new WFSClientHTTPConfigurator(_TextResources);
_FeatureTypeInfo.Prefix = _NsPrefix;
_FeatureTypeInfo.Name = _FeatureType;
string featureQueryName = string.IsNullOrEmpty(_NsPrefix) ? _FeatureType : _NsPrefix + ":" + _FeatureType;
/***************************/
/* GetCapabilities request /
* /***************************/
if (_FeatureTypeInfoQueryManager == null)
{
/* Initialize IXPathQueryManager with configured HttpClientUtil */
_FeatureTypeInfoQueryManager = new XPathQueryManager_CompiledExpressionsDecorator(new XPathQueryManager());
_FeatureTypeInfoQueryManager.SetDocumentToParse(config.configureForWfsGetCapabilitiesRequest(_HttpClientUtil, _GetCapabilitiesURI));
/* Namespaces for XPath queries */
_FeatureTypeInfoQueryManager.AddNamespace(_TextResources.NSWFSPREFIX, _TextResources.NSWFS);
_FeatureTypeInfoQueryManager.AddNamespace(_TextResources.NSOWSPREFIX, _TextResources.NSOWS);
_FeatureTypeInfoQueryManager.AddNamespace(_TextResources.NSXLINKPREFIX, _TextResources.NSXLINK);
}
/* Service URI (for WFS GetFeature request) */
_FeatureTypeInfo.ServiceURI = _FeatureTypeInfoQueryManager.GetValueFromNode
(_FeatureTypeInfoQueryManager.Compile(_TextResources.XPATH_GETFEATURERESOURCE));
/* If no GetFeature URI could be found, try GetCapabilities URI */
if (_FeatureTypeInfo.ServiceURI == null)
{
_FeatureTypeInfo.ServiceURI = _GetCapabilitiesURI;
}
else
if (_FeatureTypeInfo.ServiceURI.EndsWith("?", StringComparison.Ordinal))
{
_FeatureTypeInfo.ServiceURI =
_FeatureTypeInfo.ServiceURI.Remove(_FeatureTypeInfo.ServiceURI.Length - 1);
}
/* URI for DescribeFeatureType request */
string describeFeatureTypeUri = _FeatureTypeInfoQueryManager.GetValueFromNode
(_FeatureTypeInfoQueryManager.Compile(_TextResources.XPATH_DESCRIBEFEATURETYPERESOURCE));
/* If no DescribeFeatureType URI could be found, try GetCapabilities URI */
if (describeFeatureTypeUri == null)
{
describeFeatureTypeUri = _GetCapabilitiesURI;
}
else
if (describeFeatureTypeUri.EndsWith("?", StringComparison.Ordinal))
{
describeFeatureTypeUri =
describeFeatureTypeUri.Remove(describeFeatureTypeUri.Length - 1);
}
/* Spatial reference ID */
_FeatureTypeInfo.SRID = _FeatureTypeInfoQueryManager.GetValueFromNode(
_FeatureTypeInfoQueryManager.Compile(_TextResources.XPATH_SRS),
new DictionaryEntry[] { new DictionaryEntry("_param1", featureQueryName) });
/* If no SRID could be found, try '4326' by default */
if (_FeatureTypeInfo.SRID == null)
{
_FeatureTypeInfo.SRID = "4326";
}
else
{
/* Extract number */
_FeatureTypeInfo.SRID = _FeatureTypeInfo.SRID.Substring(_FeatureTypeInfo.SRID.LastIndexOf(":") + 1);
}
/* Bounding Box */
IXPathQueryManager bboxQuery = _FeatureTypeInfoQueryManager.GetXPathQueryManagerInContext(
_FeatureTypeInfoQueryManager.Compile(_TextResources.XPATH_BBOX),
new DictionaryEntry[] { new DictionaryEntry("_param1", featureQueryName) });
if (bboxQuery != null)
{
WfsFeatureTypeInfo.BoundingBox bbox = new WfsFeatureTypeInfo.BoundingBox();
System.Globalization.NumberFormatInfo formatInfo = new System.Globalization.NumberFormatInfo();
formatInfo.NumberDecimalSeparator = ".";
string bboxVal = null;
if (_WfsVersion == WFSVersionEnum.WFS1_0_0)
{
bbox._MinLat = Convert.ToDouble((bboxVal = bboxQuery.GetValueFromNode(bboxQuery.Compile(_TextResources.XPATH_BOUNDINGBOXMINY))) != null ? bboxVal : "0.0", formatInfo);
}
else if (_WfsVersion == WFSVersionEnum.WFS1_1_0)
{
bbox._MinLat = Convert.ToDouble((bboxVal = bboxQuery.GetValueFromNode(bboxQuery.Compile(_TextResources.XPATH_BOUNDINGBOXMINY))) != null ? bboxVal.Substring(bboxVal.IndexOf(' ') + 1) : "0.0", formatInfo);
}
if (_WfsVersion == WFSVersionEnum.WFS1_0_0)
{
bbox._MaxLat = Convert.ToDouble((bboxVal = bboxQuery.GetValueFromNode(bboxQuery.Compile(_TextResources.XPATH_BOUNDINGBOXMAXY))) != null ? bboxVal : "0.0", formatInfo);
}
else if (_WfsVersion == WFSVersionEnum.WFS1_1_0)
{
bbox._MaxLat = Convert.ToDouble((bboxVal = bboxQuery.GetValueFromNode(bboxQuery.Compile(_TextResources.XPATH_BOUNDINGBOXMAXY))) != null ? bboxVal.Substring(bboxVal.IndexOf(' ') + 1) : "0.0", formatInfo);
}
if (_WfsVersion == WFSVersionEnum.WFS1_0_0)
{
bbox._MinLong = Convert.ToDouble((bboxVal = bboxQuery.GetValueFromNode(bboxQuery.Compile(_TextResources.XPATH_BOUNDINGBOXMINX))) != null ? bboxVal : "0.0", formatInfo);
}
else if (_WfsVersion == WFSVersionEnum.WFS1_1_0)
{
bbox._MinLong = Convert.ToDouble((bboxVal = bboxQuery.GetValueFromNode(bboxQuery.Compile(_TextResources.XPATH_BOUNDINGBOXMINX))) != null ? bboxVal.Substring(0, bboxVal.IndexOf(' ') + 1) : "0.0", formatInfo);
}
if (_WfsVersion == WFSVersionEnum.WFS1_0_0)
{
bbox._MaxLong = Convert.ToDouble((bboxVal = bboxQuery.GetValueFromNode(bboxQuery.Compile(_TextResources.XPATH_BOUNDINGBOXMAXX))) != null ? bboxVal : "0.0", formatInfo);
}
else if (_WfsVersion == WFSVersionEnum.WFS1_1_0)
{
bbox._MaxLong = Convert.ToDouble((bboxVal = bboxQuery.GetValueFromNode(bboxQuery.Compile(_TextResources.XPATH_BOUNDINGBOXMAXX))) != null ? bboxVal.Substring(0, bboxVal.IndexOf(' ') + 1) : "0.0", formatInfo);
}
_FeatureTypeInfo.BBox = bbox;
}
//Continue with a clone in order to preserve the 'GetCapabilities' response
IXPathQueryManager describeFeatureTypeQueryManager = _FeatureTypeInfoQueryManager.Clone();
/******************************/
/* DescribeFeatureType request /
* /******************************/
/* Initialize IXPathQueryManager with configured HttpClientUtil */
describeFeatureTypeQueryManager.ResetNamespaces();
describeFeatureTypeQueryManager.SetDocumentToParse(config.configureForWfsDescribeFeatureTypeRequest
(_HttpClientUtil, describeFeatureTypeUri, featureQueryName));
/* Namespaces for XPath queries */
describeFeatureTypeQueryManager.AddNamespace(_TextResources.NSSCHEMAPREFIX, _TextResources.NSSCHEMA);
describeFeatureTypeQueryManager.AddNamespace(_TextResources.NSGMLPREFIX, _TextResources.NSGML);
/* Get target namespace */
string targetNs = describeFeatureTypeQueryManager.GetValueFromNode(
describeFeatureTypeQueryManager.Compile(_TextResources.XPATH_TARGETNS));
if (targetNs != null)
{
_FeatureTypeInfo.FeatureTypeNamespace = targetNs;
}
/* Get geometry */
string geomType = _GeometryType == GeometryTypeEnum.Unknown ? null : _GeometryType.ToString();
string geomName = null;
string geomComplexTypeName = null;
/* The easiest way to get geometry info, just ask for the 'gml'-prefixed type-attribute...
* Simple, but effective in 90% of all cases...this is the standard GeoServer creates.*/
/* example: <xs:element nillable = "false" name = "the_geom" maxOccurs = "1" type = "gml:MultiPolygonPropertyType" minOccurs = "0" /> */
/* Try to get context of the geometry element by asking for a 'gml:*' type-attribute */
IXPathQueryManager geomQuery = describeFeatureTypeQueryManager.GetXPathQueryManagerInContext(
describeFeatureTypeQueryManager.Compile(_TextResources.XPATH_GEOMETRYELEMENT_BYTYPEATTRIBUTEQUERY));
if (geomQuery != null)
{
geomName = geomQuery.GetValueFromNode(geomQuery.Compile(_TextResources.XPATH_NAMEATTRIBUTEQUERY));
/* Just, if not set manually... */
if (geomType == null)
{
geomType = geomQuery.GetValueFromNode(geomQuery.Compile(_TextResources.XPATH_TYPEATTRIBUTEQUERY));
}
}
else
{
/* Try to get context of a complexType with element ref ='gml:*' - use the global context */
/* example:
* <xs:complexType name="geomType">
* <xs:sequence>
* <xs:element ref="gml:polygonProperty" minOccurs="0"/>
* </xs:sequence>
* </xs:complexType> */
geomQuery = describeFeatureTypeQueryManager.GetXPathQueryManagerInContext(
describeFeatureTypeQueryManager.Compile(_TextResources.XPATH_GEOMETRYELEMENTCOMPLEXTYPE_BYELEMREFQUERY));
if (geomQuery != null)
{
/* Ask for the name of the complextype - use the local context*/
geomComplexTypeName = geomQuery.GetValueFromNode(geomQuery.Compile(_TextResources.XPATH_NAMEATTRIBUTEQUERY));
if (geomComplexTypeName != null)
{
/* Ask for the name of an element with a complextype of 'geomComplexType' - use the global context */
geomName = describeFeatureTypeQueryManager.GetValueFromNode(describeFeatureTypeQueryManager.Compile(
_TextResources.XPATH_GEOMETRY_ELEMREF_GEOMNAMEQUERY), new DictionaryEntry[] {
new DictionaryEntry("_param1", _FeatureTypeInfo.FeatureTypeNamespace),
new DictionaryEntry("_param2", geomComplexTypeName)
});
}
else
{
/* The geometry element must be an ancestor, if we found an anonymous complextype */
/* Ask for the element hosting the anonymous complextype - use the global context */
/* example:
* <xs:element name ="SHAPE">
* <xs:complexType>
* <xs:sequence>
* <xs:element ref="gml:lineStringProperty" minOccurs="0"/>
* </xs:sequence>
* </xs:complexType>
* </xs:element> */
geomName = describeFeatureTypeQueryManager.GetValueFromNode(describeFeatureTypeQueryManager.Compile(_TextResources.XPATH_GEOMETRY_ELEMREF_GEOMNAMEQUERY_ANONYMOUSTYPE));
}
/* Just, if not set manually... */
if (geomType == null)
{
/* Ask for the 'ref'-attribute - use the local context */
if ((geomType = geomQuery.GetValueFromNode(geomQuery.Compile(_TextResources.XPATH_GEOMETRY_ELEMREF_GMLELEMENTQUERY))) != null)
{
switch (geomType)
{
case "gml:pointProperty": geomType = "PointPropertyType"; break;
case "gml:lineStringProperty": geomType = "LineStringPropertyType"; break;
case "gml:curveProperty": geomType = "CurvePropertyType"; break;
case "gml:polygonProperty": geomType = "PolygonPropertyType"; break;
case "gml:surfaceProperty": geomType = "SurfacePropertyType"; break;
case "gml:multiPointProperty": geomType = "MultiPointPropertyType"; break;
case "gml:multiLineStringProperty": geomType = "MultiLineStringPropertyType"; break;
case "gml:multiCurveProperty": geomType = "MultiCurvePropertyType"; break;
case "gml:multiPolygonProperty": geomType = "MultiPolygonPropertyType"; break;
case "gml:multiSurfaceProperty": geomType = "MultiSurfacePropertyType"; break;
// e.g. 'gml:_geometryProperty'
default: break;
}
}
}
}
}
if (geomName == null)
{
/* Default value for geometry column = geom */
geomName = "geom";
}
if (geomType == null)
{
/* Set geomType to an empty string in order to avoid exceptions.
* The geometry type is not necessary by all means - it can be detected in 'GetFeature' response too.. */
geomType = string.Empty;
}
/* Remove prefix */
if (geomType.Contains(":"))
{
geomType = geomType.Substring(geomType.IndexOf(":") + 1);
}
WfsFeatureTypeInfo.GeometryInfo geomInfo = new WfsFeatureTypeInfo.GeometryInfo();
geomInfo._GeometryName = geomName;
geomInfo._GeometryType = geomType;
_FeatureTypeInfo.Geometry = geomInfo;
}
finally
{
_HttpClientUtil.Close();
}
}
/// <summary>
/// Gets the features within the specified <see cref="GeoAPI.Geometries.Envelope"/>
/// </summary>
/// <param name="bbox"></param>
/// <returns>Features within the specified <see cref="GeoAPI.Geometries.Envelope"/></returns>
public IEnumerable<IGeometry> GetGeometriesInView(Envelope bbox, CancellationToken? cancellationToken = null)
{
if (_featureTypeInfo == null) return null;
var geoms = new Collection<IGeometry>();
string geometryTypeString = _featureTypeInfo.Geometry._GeometryType;
GeometryFactory geomFactory = null;
if (!string.IsNullOrEmpty(_label))
{
var ff = FeatureFactory.CreateInt32(GeoAPI.GeometryServiceProvider.Instance.CreateGeometryFactory(SRID),
new FeatureAttributeDefinition
{
AttributeName = "Label",
Default = string.Empty,
AttributeType = typeof(string),
IsNullable = true
});
_labelInfo = new FeatureCollection<int>(ff);
// Turn off quick geometries, if a label is applied...
_quickGeometries = false;
}
// Configuration for GetFeatureByOid request */
WFSClientHTTPConfigurator config = new WFSClientHTTPConfigurator(_textResources);
config.configureForWfsGetFeatureRequest(_httpClientUtil, _featureTypeInfo, _label, bbox, _ogcFilter,
_getFeatureGETRequest);
try
{
switch (geometryTypeString)
{
/* Primitive geometry elements */
// GML2
case "PointPropertyType":
geomFactory = new PointFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML2
case "LineStringPropertyType":
geomFactory = new LineStringFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML2
case "PolygonPropertyType":
geomFactory = new PolygonFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML3
case "CurvePropertyType":
geomFactory = new LineStringFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML3
case "SurfacePropertyType":
geomFactory = new PolygonFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
/* Aggregate geometry elements */
// GML2
case "MultiPointPropertyType":
if (_multiGeometries)
geomFactory = new MultiPointFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
else
geomFactory = new PointFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML2
case "MultiLineStringPropertyType":
if (_multiGeometries)
geomFactory = new MultiLineStringFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
else
geomFactory = new LineStringFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML2
case "MultiPolygonPropertyType":
if (_multiGeometries)
geomFactory = new MultiPolygonFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
else
geomFactory = new PolygonFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML3
case "MultiCurvePropertyType":
if (_multiGeometries)
geomFactory = new MultiLineStringFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
else
geomFactory = new LineStringFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// GML3
case "MultiSurfacePropertyType":
if (_multiGeometries)
geomFactory = new MultiPolygonFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
else
geomFactory = new PolygonFactory(_httpClientUtil, _featureTypeInfo, _labelInfo);
break;
// .e.g. 'gml:GeometryAssociationType' or 'GeometryPropertyType'
//It's better to set the geometry type manually, if it is known...
default:
geomFactory = new UnspecifiedGeometryFactory_WFS1_0_0_GML2(_httpClientUtil, _featureTypeInfo,
_multiGeometries, _quickGeometries,
_labelInfo);
geoms = geomFactory.createGeometries();
return geoms;
}
geoms = _quickGeometries
? geomFactory.createQuickGeometries(geometryTypeString)
: geomFactory.createGeometries();
geomFactory.Dispose();
return geoms;
}
// Free resources (net connection of geometry factory)
finally
{
if (geomFactory != null)
{
geomFactory.Dispose();
}
}
}
