public void GetFeatureRequestUrl()
{
string url = "http://slwgeo.artdata.slu.se:8080/geoserver/wfs";
string bbox = "6400000,1400000, 6500000,1500000";
string parameter = string.Empty;
string parametervalue = string.Empty;
string resultUrl = string.Empty;
WfsTypeName typeName = new WfsTypeName();
typeName.Namespace = "SLW:Sverigekarta_med_lan";
string srsName = string.Empty;
resultUrl = WFSManager.CreateGetFeatureRequestUrl(url, WFSVersion.Ver110, bbox, typeName, srsName, parameter, parametervalue);
Assert.AreEqual("http://slwgeo.artdata.slu.se:8080/geoserver/wfs?&service=wfs&request=GetFeature&version=1.1.0&bbox=6400000,1400000, 6500000,1500000&typeName=SLW:Sverigekarta_med_lan&outputFormat=json", resultUrl);
}
public void GetWfsFeaturesWithBoundingBox()
{
WfsTypeName typeName = new WfsTypeName();
WFSVersion version = WFSVersion.Ver110;
string serverUrl = "http://slwgeo.artdata.slu.se:8080/geoserver/wfs";
string parameter = string.Empty;
string parameterValue = string.Empty;
string bbox = "6400000,1400000, 6500000,1500000";
typeName.Namespace = "SLW:Sverigekarta_med_lan";
string srsName = string.Empty;
FeatureCollection featureCollection;
featureCollection = WFSManager.GetWfsFeatures(serverUrl, version, bbox, typeName, srsName, parameter, parameterValue);
Assert.IsNotNull(featureCollection);
Assert.IsTrue(featureCollection.Features.Count == 5);
}
public void GetWfsFeatures()
{
WfsTypeName typeName = new WfsTypeName();
WFSVersion version = WFSVersion.Ver110;
string serverUrl = "http://slwgeo.artdata.slu.se:8080/geoserver/SLW/wfs";
string parameter = string.Empty;
string parameterValue = string.Empty;
string bbox = string.Empty;//&BBOX=133499, 628499, 154501, 635501;//&BBOX=628499,133499,635501,154501";
typeName.Namespace = "SLW:Sverigekarta_med_lan";
string srsName = string.Empty;
FeatureCollection featureCollection;
featureCollection = WFSManager.GetWfsFeatures(serverUrl, version, bbox, typeName, srsName, parameter, parameterValue);
Assert.IsNotNull(featureCollection);
Assert.IsTrue(featureCollection.Features.Count == 22);
}
public void GetWfsFeaturesWithFilter()
{
WfsTypeName typeName = new WfsTypeName();
WFSVersion version = WFSVersion.Ver110;
string serverUrl = "http://slwgeo.artdata.slu.se:8080/geoserver/wfs";
string bbox = string.Empty;
string parameter = "SLW:LänSKOD";
string parameterValue = "17";
//Todo: vilken är det:?
typeName.Namespace = "SLW:Sverigekarta_med_lan";
//typeName.Name = "SLW:Sverigekarta_med_lan";
string srsName = string.Empty;
FeatureCollection featureCollection;
featureCollection = WFSManager.GetWfsFeatures(serverUrl, version, bbox, typeName, srsName, parameter, parameterValue);
Assert.IsNotNull(featureCollection);
Assert.IsTrue(featureCollection.Features.Count == 1);
}
public void GetWfsFeaturesWithBoundingBoxUsingMsFakes()
{
using (ShimsContext.Create())
{
ShimWebClient.AllInstances.DownloadStringString = (client, url) =>
File.ReadAllText(@"Sample files\SLW_Sverigekarta_med_lan - BBox Filter.json");
WfsTypeName typeName = new WfsTypeName();
WFSVersion version = WFSVersion.Ver110;
string serverUrl = "http://slwgeo.artdata.slu.se:8080/geoserver/wfs";
string parameter = string.Empty;
string parameterValue = string.Empty;
string bbox = "6400000,1400000, 6500000,1500000";
typeName.Namespace = "SLW:Sverigekarta_med_lan";
string srsName = string.Empty;
FeatureCollection featureCollection;
featureCollection = WFSManager.GetWfsFeatures(serverUrl, version, bbox, typeName, srsName, parameter, parameterValue);
Assert.IsNotNull(featureCollection);
Assert.AreEqual(5, featureCollection.Features.Count);
}
}
public void GetWfsFeaturesUsingMsFakes()
{
using (ShimsContext.Create())
{
ShimWebClient.AllInstances.DownloadStringString = (client, url) =>
File.ReadAllText(@"Sample files\SLW_Sverigekarta_med_lan - All Features.json");
WfsTypeName typeName = new WfsTypeName();
WFSVersion version = WFSVersion.Ver110;
string serverUrl = "http://slwgeo.artdata.slu.se:8080/geoserver/SLW/wfs";
string parameter = string.Empty;
string parameterValue = string.Empty;
string bbox = string.Empty; // &BBOX=133499, 628499, 154501, 635501;//&BBOX=628499,133499,635501,154501";
typeName.Namespace = "SLW:Sverigekarta_med_lan";
string srsName = string.Empty;
FeatureCollection featureCollection;
featureCollection = WFSManager.GetWfsFeatures(serverUrl, version, bbox, typeName, srsName, parameter, parameterValue);
Assert.IsNotNull(featureCollection);
Assert.IsTrue(featureCollection.Features.Count == 22);
}
}
/// <summary>
///
/// </summary>
/// <param name="serverUrl">The WFS server URL.</param>
/// <param name="version">The WFS version.</param>
/// <param name="bbox">The bounding box in which the analysyis should be done.</param>
/// <param name="typeName">The features layer names you want info about.</param>
/// <param name="srsName">The spatial reference system (SRID) in the format of EPSG:XXXX </param>
/// <param name="parameter"></param>
/// <param name="parameterValue"></param>
/// <returns></returns>
public static FeatureCollection GetWfsFeatures(string serverUrl, WFSVersion version, string bbox, WfsTypeName typeName, string srsName, string parameter, string parameterValue)
{
string requestUrl = "";
requestUrl = CreateGetFeatureRequestUrl(serverUrl, version, bbox, typeName, srsName, parameter, parameterValue);
using (WebClient wc = new WebClient())
{
wc.Encoding = Encoding.UTF8;
string strJson = wc.DownloadString(requestUrl);
// Make a Json string to a featue collection type
FeatureCollection featureCollection = JsonConvert.DeserializeObject(strJson, typeof(FeatureCollection)) as FeatureCollection;
return(featureCollection);
}
}
/// <summary>
/// Creates a WFS DescribeFeatureType request URL.
/// </summary>
/// <param name="serverUrl">The WFS server URL.</param>
/// <param name="version">The WFS version.</param>
/// <param name="bbox">The bounding box given as bottom left and top right corner coordinates.</param>
/// <param name="typeName">Name of the feature type to describe.</param>
/// <param name="srsName">The spatial reference system (SRID) in the format of EPSG:XXXX </param>
/// <param name="parameter"></param>
/// <param name="parameterValue"></param>
/// <returns></returns>
public static string CreateGetFeatureRequestUrl(string serverUrl, WFSVersion version, string bbox, WfsTypeName typeName, string srsName, string parameter, string parameterValue)
{
// As for now only polygon features and output format json are supported
//
const string outputFormat = "json";
string strFilter = "";
if (version == WFSVersion.Unknown)
{
throw new Exception("WFSVersion is unknown");
}
//The query should specify either typeName, featureId filter(, or a stored query id)
//
if (typeName.Namespace.IsEmpty() && parameter.IsEmpty())
{
throw new Exception("Missing TypeName and filter in url, wich is not allowed.");
}
//The query should not specify both bounding box and filter at the same time
//
if (parameter.IsNotEmpty() && bbox.IsNotEmpty())
{
throw new Exception("There is a filter and a bounding box defined at the same time: filter and bbox both specified but are mutually exclusive");
//Todo: Or make the filter with the bounding box
}
string strVersion = GetWFSVersionStringFromEnum(version);
var uriBuilder = new UriBuilder(serverUrl);
Uri uri = uriBuilder.Uri;
string baseUrl = uri.GetLeftPart(UriPartial.Path);
var strReq = new StringBuilder(baseUrl);
strReq.Append("?");
strReq.AppendFormat("&service=wfs");
strReq.AppendFormat("&request=GetFeature");
strReq.AppendFormat("&version=" + strVersion);
if (parameter.IsNotEmpty())
{
strFilter = CreateWFSFilter(parameter, parameterValue);
strReq.AppendFormat("&filter=" + strFilter);
}
if (bbox.IsNotEmpty())
{
strReq.AppendFormat("&bbox=" + bbox);
}
if (typeName.Namespace.IsNotEmpty())
{
strReq.AppendFormat("&typeName=" + typeName.Namespace);
}
if (srsName.IsNotEmpty())
{
strReq.AppendFormat("&srs=" + srsName);
}
//Todo Hantera Parameter och parameterValue
//
strReq.AppendFormat("&outputFormat=" + outputFormat);
return(strReq.ToString());
}
