public void CreatXmlDoc(PostDataCriteria pPostDaCri)
{
pPostDataCriteria = pPostDaCri;
try
{
StringBuilder pBuilder = new StringBuilder();
pBuilder.Append("<csw:GetRecords xmlns:csw='http://www.opengis.net/cat/csw/2.0.2' version='2.0.2' service='CSW' resultType='results' ");
StartPosition(pBuilder); ///Set the start position for request
MaxResults(pBuilder); ///Set max number of results shown in the list box
pBuilder.Append(">");
pBuilder.Append("<csw:Query typeNames='csw:Record' xmlns:ogc='http://www.opengis.net/ogc' xmlns:gml='http://www.opengis.net/gml'>");
pBuilder.Append("<csw:ElementSetName>");
pBuilder.Append("full");
pBuilder.Append("</csw:ElementSetName>");
pBuilder.Append("<csw:Constraint version='1.1.0'>");
pBuilder.Append("<ogc:Filter>");
if (pPostDaCri.IsLiveDataOnly || pPostDaCri.IsWmsOnly || (pPostDaCri.Envelope != null))
{
pBuilder.Append("<ogc:And>");
}
SearchText(pBuilder); ///Set search criterias, including search key word and search area
if (pPostDaCri.IsLiveDataOnly) { SearchForLiveDataOnly(pBuilder); } ///Define if only search live data
if (pPostDaCri.IsWmsOnly) { SearchForWmsOnly(pBuilder); } ///Define if only search wms services
if (pPostDaCri.Envelope != null)
{
BoundingBox(pBuilder); ///Set bounding box
}
if (pPostDaCri.IsLiveDataOnly || pPostDaCri.IsWmsOnly || (pPostDaCri.Envelope != null))
{
pBuilder.Append("</ogc:And>");
}
pBuilder.Append("</ogc:Filter>");
pBuilder.Append("</csw:Constraint>");
pBuilder.Append("</csw:Query>");
pBuilder.Append("</csw:GetRecords>");
strPostData = pBuilder.ToString();
}
catch (Exception ex)
{
throw ex;
}
}
public void CreatXmlDoc(PostDataCriteria pPostDaCri)
{
pPostDataCriteria = pPostDaCri;
try
{
StringBuilder pBuilder = new StringBuilder();
pBuilder.Append("<csw:GetRecords xmlns:csw='http://www.opengis.net/cat/csw/2.0.2' version='2.0.2' service='CSW' resultType='results' ");
StartPosition(pBuilder); ///Set the start position for request
MaxResults(pBuilder); ///Set max number of results shown in the list box
pBuilder.Append(">");
pBuilder.Append("<csw:Query typeNames='csw:Record' xmlns:ogc='http://www.opengis.net/ogc' xmlns:gml='http://www.opengis.net/gml'>");
pBuilder.Append("<csw:ElementSetName>");
pBuilder.Append("full");
pBuilder.Append("</csw:ElementSetName>");
pBuilder.Append("<csw:Constraint version='1.1.0'>");
pBuilder.Append("<ogc:Filter>");
if (pPostDaCri.IsLiveDataOnly || pPostDaCri.IsWmsOnly || (pPostDaCri.Envelope != null))
{
pBuilder.Append("<ogc:And>");
}
SearchText(pBuilder); ///Set search criterias, including search key word and search area
if (pPostDaCri.IsLiveDataOnly)
{
SearchForLiveDataOnly(pBuilder);
} ///Define if only search live data
if (pPostDaCri.IsWmsOnly)
{
SearchForWmsOnly(pBuilder);
} ///Define if only search wms services
if (pPostDaCri.Envelope != null)
{
BoundingBox(pBuilder); ///Set bounding box
}
if (pPostDaCri.IsLiveDataOnly || pPostDaCri.IsWmsOnly || (pPostDaCri.Envelope != null))
{
pBuilder.Append("</ogc:And>");
}
pBuilder.Append("</ogc:Filter>");
pBuilder.Append("</csw:Constraint>");
pBuilder.Append("</csw:Query>");
pBuilder.Append("</csw:GetRecords>");
strPostData = pBuilder.ToString();
}
catch (Exception ex)
{
throw ex;
}
}
public void CswRequest(PostDataCriteria pPostDaCri, int indexSelectedCatalog)
{
// GeoPortal and GeoNode require X/Y and pyCSW requrires Y/X
CreatePostData pPostData = new CreatePostData();
if (strCatalogUrl == "http://catalog.usgin.org/geoportal/csw/discovery?" || strCatalogUrl == "http://onegeology-catalog.brgm.fr/geonetwork/srv/csw?")
{
pPostDaCri.SwitchXY = true;
}
else
{
pPostDaCri.SwitchXY = false;
}
//Get xml data for post request
pPostData.CreatXmlDoc(pPostDaCri);
strPostDa = pPostData.PostData;
///Send csw request
Uri cswUri = new Uri(strCatalogUrl);
HttpWebRequest cswRequest = (HttpWebRequest)WebRequest.Create(cswUri);
cswRequest.AllowAutoRedirect = true;
cswRequest.Method = "POST";
cswRequest.ContentType = "text/xml;charset=UTF-8";
UTF8Encoding encoding = new UTF8Encoding();
Byte[] byteTemp = encoding.GetBytes(strPostDa);
cswRequest.ContentLength = byteTemp.Length;
Stream cswRqStream = cswRequest.GetRequestStream();
cswRqStream.Write(byteTemp, 0, byteTemp.Length);
cswRqStream.Close();
try
{
///Get csw response
HttpWebResponse cswResponse = (HttpWebResponse)cswRequest.GetResponse();
Stream cswRpStream = cswResponse.GetResponseStream();
StreamReader cswRpReader = new StreamReader(cswRpStream);
strResponseTxt = cswRpReader.ReadToEnd();
cswRpReader.Close();
///Parse csw response
ParseCswResponse cPCswRp = new ParseCswResponse();
cPCswRp.ResponseTxt = strResponseTxt;
cPCswRp.ParseResponse(indexSelectedCatalog);
///List all the services
rDataList = cPCswRp.DataList;
///Other values needed in dockable window
strNumRecords = cPCswRp.NumRecords;
}
catch (WebException wex)
{ throw wex; }
catch (Exception ex)
{ throw ex; }
}
