/// <summary>
/// Reusable functions
/// </summary>
private void ParseSearchResults(XmlNodeList ndList, XmlNamespaceManager xnManager, int indexCatalog)
{
for (int i = 0; i < ndList.Count; i++)
{
XmlNode ndMDa = ndList.Item(i);
switch (indexCatalog)
{
case 0:
ListDataModel aasgModel = ParseEachGeoportalSearchResult(ndMDa, xnManager);
Add2DaList(aasgModel);
break;
case 1:
ListDataModel onegeologyModel = ParseEachOnegeologySearchResult(ndMDa, xnManager);
Add2DaList(onegeologyModel);
break;
case 2:
ListDataModel geogovModel = ParseEachMultiDistGeoportalSearchResult(ndMDa, xnManager);
Add2DaList(geogovModel);
break;
case 3:
ListDataModel usginModel = ParseEachMultiDistGeoportalSearchResult(ndMDa, xnManager);
Add2DaList(usginModel);
break;
}
}
}
private ListDataModel ParseEachOnegeologySearchResult(XmlNode nd, XmlNamespaceManager xnManager)
{
ListDataModel lstData = new ListDataModel();
///Get record title info
XmlNode ndTitle = nd.SelectSingleNode("dc:title", xnManager);
lstData.Title = ndTitle.InnerText;
///Get metadata id info
XmlNode ndIdentifier = nd.SelectSingleNode("dc:identifier", xnManager);
lstData.MetadataId = ndIdentifier.InnerText;
///Get abstract info
XmlNode ndAbstract = nd.SelectSingleNode("dct:abstract", xnManager);
lstData.Abstract = ndAbstract.InnerText;
///Get the link of service and service type
XmlNodeList ndRefList = nd.SelectNodes("dc:URI", xnManager);
try
{
if (ndRefList != null)
{
for (int iRef = 0; iRef < ndRefList.Count; iRef++)
{
XmlNode ndRef = ndRefList[iRef];
XmlAttributeCollection ndAttrColl = ndRef.Attributes;
for (int iAtt = 0; iAtt < ndAttrColl.Count; iAtt++)
{
if (ndAttrColl[iAtt].Name == "protocol" && ndRef.Attributes[0].Value.Contains("OGC:WMS")) ///Looking for wms service-
{
lstData.SvicType = "WMS";
if (ndRef.InnerText.Contains('?')) ///When the service url has '&' in the end
{
lstData.SvrUrl = ndRef.InnerText;
break;
}
else if (!ndRef.InnerText.Contains('?')) ///When the service url needs '?' in the end
{
lstData.SvrUrl = ndRef.InnerText + '?';
break;
}
}
}
}
}
}
catch (Exception ex)
{ throw ex; }
return(lstData);
}
private void RefreshSearchResults(int currentPage, int startPosition, int numPages)
{
pPostDaCri.StartPosition = startPosition.ToString(); ///Set start position for the post data of request
cCswSearch.CswRequest(pPostDaCri, cboCatalog.SelectedIndex);
lbPage.Text = "Page " + currentPage.ToString() + "/" + numPages.ToString();
rList = cCswSearch.DataList;
lboxResults.Items.Clear();
for (int i = 0; i < rList.Count; i++)
{
ListDataModel list = rList[i] as ListDataModel;
lboxResults.Items.Add(list.Title); ///List search results
}
}
private void lboxResults_SelectedIndexChanged(object sender, EventArgs e)
{
lboxResults.Cursor = Cursors.WaitCursor;
///Get info for the selected item
selectedItem = rList[lboxResults.SelectedIndex] as ListDataModel;
///Add abstract into the text box
tboxAbstract.Text = selectedItem.Abstract;
///Identify if the service can be added into the map
if (selectedItem.SvicType == null || selectedItem.SvrUrl == null)
{
btnAdd.Enabled = false;
}
else if (selectedItem.SvicType == "WMS")
{
if (TestUrl(selectedItem.SvrUrl))
{
btnAdd.Enabled = true;
selectedItem.SvicType += "_Valid";
}
else
{
btnAdd.Enabled = false;
selectedItem.SvicType = null;
}
}
else if (selectedItem.SvicType == "WMS_Valid")
{
btnAdd.Enabled = true;
}
///Identify if the metadata document exists
if (selectedItem.MetadataId == null)
{
btnMetaDoc.Enabled = false;
}
else
{
btnMetaDoc.Enabled = true;
}
lboxResults.Cursor = Cursors.Default;
}
private ListDataModel ParseEachGeoportalSearchResult(XmlNode nd, XmlNamespaceManager xnManager)
{
ListDataModel lstData = new ListDataModel();
///Get record title info
XmlNode ndTitle = nd.SelectSingleNode("dc:title", xnManager);
lstData.Title = ndTitle.InnerText;
///Get metadata id info
XmlNodeList ndIdentifierList = nd.SelectNodes("dc:identifier", xnManager);
for (int i = 0; i < ndIdentifierList.Count; i++)
{
XmlNode ndMetaDaId = ndIdentifierList[i];
for(int j = 0; j < ndMetaDaId.Attributes.Count; j ++)
{
if (ndMetaDaId.Attributes[j].Name == "scheme" && ndMetaDaId.Attributes[j].Value.Contains("DocID"))
{ lstData.MetadataId = ndMetaDaId.InnerText; break; }
}
}
///Get abstract info
XmlNode ndAbstract = nd.SelectSingleNode("dct:abstract", xnManager);
lstData.Abstract = ndAbstract.InnerText;
///Get the link of service and service type
XmlNodeList ndRefList = nd.SelectNodes("dct:references", xnManager);
string urlCapabilities;
try
{
if (ndRefList != null)
{
for (int iRef = 0; iRef < ndRefList.Count; iRef++)
{
XmlNode ndRef = ndRefList[iRef];
if (ndRef.InnerText.Contains("GetCapabilities") || ndRef.InnerText.Contains("getcapabilities") || ndRef.InnerText.Contains("getCapabilities"))
{
urlCapabilities = ndRef.InnerText;
if (urlCapabilities.Contains("=WMS") || urlCapabilities.Contains("=wms"))
{ lstData.SvicType = "WMS"; } ///Identify the service type
else { break; }
string[] rUrlCapabilities = urlCapabilities.Split('?');
lstData.SvrUrl = rUrlCapabilities[0] + '?';
if (rUrlCapabilities[1].Contains("map="))
{
string[] urlProperties = rUrlCapabilities[1].Split('&');
lstData.SvrUrl += urlProperties[0] + '&';
}
break;
}
else if (ndRef.InnerText.Contains("Capabilities") || ndRef.InnerText.Contains("capabilities"))
{
///Write log for invalid GetCapabilities url
Log cLog = new Log("InvalidGetCapabilitiesUrl");
cLog.WriteLog(ndTitle.InnerText);
cLog.WriteLog(ndRef.InnerText);
cLog.CloseLog();
}
}
}
}
catch (Exception ex)
{ throw ex; }
return lstData;
}
private void Add2DaList(ListDataModel daModel)
{
rDataList.Add(daModel);
}
private ListDataModel ParseEachOnegeologySearchResult(XmlNode nd, XmlNamespaceManager xnManager)
{
ListDataModel lstData = new ListDataModel();
///Get record title info
XmlNode ndTitle = nd.SelectSingleNode("dc:title", xnManager);
lstData.Title = ndTitle.InnerText;
///Get metadata id info
XmlNode ndIdentifier = nd.SelectSingleNode("dc:identifier", xnManager);
lstData.MetadataId = ndIdentifier.InnerText;
///Get abstract info
XmlNode ndAbstract = nd.SelectSingleNode("dct:abstract", xnManager);
lstData.Abstract = ndAbstract.InnerText;
///Get the link of service and service type
XmlNodeList ndRefList = nd.SelectNodes("dc:URI", xnManager);
try
{
if (ndRefList != null)
{
for (int iRef = 0; iRef < ndRefList.Count; iRef++)
{
XmlNode ndRef = ndRefList[iRef];
XmlAttributeCollection ndAttrColl = ndRef.Attributes;
for (int iAtt = 0; iAtt < ndAttrColl.Count; iAtt++)
{
if (ndAttrColl[iAtt].Name == "protocol" && ndRef.Attributes[0].Value.Contains("OGC:WMS")) ///Looking for wms service-
{
lstData.SvicType = "WMS";
if(ndRef.InnerText.Contains('?')) ///When the service url has '&' in the end
{
lstData.SvrUrl = ndRef.InnerText;
break;
}
else if (!ndRef.InnerText.Contains('?')) ///When the service url needs '?' in the end
{
lstData.SvrUrl = ndRef.InnerText + '?';
break;
}
}
}
}
}
}
catch (Exception ex)
{ throw ex; }
return lstData;
}
/// <summary>
/// Parse the response from Geoportal catalog, with multi distributions in the response
/// </summary>
private ListDataModel ParseEachMultiDistGeoportalSearchResult(XmlNode nd, XmlNamespaceManager xnManager)
{
ListDataModel lstData = new ListDataModel();
///Get record title info
XmlNode ndTitle = nd.SelectSingleNode("dc:title", xnManager);
lstData.Title = ndTitle.InnerText;
///Get metadata id info
XmlNodeList ndIdentifierList = nd.SelectNodes("dc:identifier", xnManager);
for (int i = 0; i < ndIdentifierList.Count; i++)
{
XmlNode ndMetaDaId = ndIdentifierList[i];
if (ndMetaDaId.InnerText != null)
{
lstData.MetadataId = ndMetaDaId.InnerText;
}
for (int j = 0; j < ndMetaDaId.Attributes.Count; j++)
{
if (ndMetaDaId.Attributes[j].Name == "scheme" && ndMetaDaId.Attributes[j].Value.Contains("DocID"))
{ lstData.MetadataId = ndMetaDaId.InnerText; break; }
}
}
///Get abstract info
XmlNode ndAbstract = nd.SelectSingleNode("dct:abstract", xnManager);
lstData.Abstract = ndAbstract.InnerText;
///Get the link of service and service type
XmlNodeList ndRefList = nd.SelectNodes("dct:references", xnManager);
string urlCapabilities;
try
{
if (ndRefList != null)
{
for (int iRef = 0; iRef < ndRefList.Count; iRef++)
{
XmlNode ndRef = ndRefList[iRef];
for (int iAttr = 0; iAttr < ndRef.Attributes.Count; iAttr++)
{
if (ndRef.Attributes[iAttr].Name == "scheme" && ndRef.Attributes[iAttr].Value.Contains("OGC:WMS"))
{
lstData.SvicType = "WMS";
urlCapabilities = ndRef.InnerText;
string[] rUrlCapabilities = urlCapabilities.Split('?');
lstData.SvrUrl = rUrlCapabilities[0] + '?';
}
}
}
}
}
catch (Exception ex)
{ throw ex; }
return lstData;
}
private void lboxResults_SelectedIndexChanged(object sender, EventArgs e)
{
lboxResults.Cursor = Cursors.WaitCursor;
///Get info for the selected item
selectedItem = rList[lboxResults.SelectedIndex] as ListDataModel;
///Add abstract into the text box
tboxAbstract.Text = selectedItem.Abstract;
///Identify if the service can be added into the map
if (selectedItem.SvicType == null || selectedItem.SvrUrl == null)
{ btnAdd.Enabled = false; }
else if (selectedItem.SvicType == "WMS")
{
if (TestUrl(selectedItem.SvrUrl))
{
btnAdd.Enabled = true;
selectedItem.SvicType += "_Valid";
}
else
{
btnAdd.Enabled = false;
selectedItem.SvicType = null;
}
}
else if (selectedItem.SvicType == "WMS_Valid")
{ btnAdd.Enabled = true; }
///Identify if the metadata document exists
if (selectedItem.MetadataId == null)
{ btnMetaDoc.Enabled = false; }
else
{ btnMetaDoc.Enabled = true; }
lboxResults.Cursor = Cursors.Default;
}
private ListDataModel ParseEachGeoportalSearchResult(XmlNode nd, XmlNamespaceManager xnManager)
{
ListDataModel lstData = new ListDataModel();
///Get record title info
XmlNode ndTitle = nd.SelectSingleNode("dc:title", xnManager);
lstData.Title = ndTitle.InnerText;
///Get metadata id info
XmlNodeList ndIdentifierList = nd.SelectNodes("dc:identifier", xnManager);
for (int i = 0; i < ndIdentifierList.Count; i++)
{
XmlNode ndMetaDaId = ndIdentifierList[i];
for (int j = 0; j < ndMetaDaId.Attributes.Count; j++)
{
if (ndMetaDaId.Attributes[j].Name == "scheme" && ndMetaDaId.Attributes[j].Value.Contains("DocID"))
{
lstData.MetadataId = ndMetaDaId.InnerText; break;
}
}
}
///Get abstract info
XmlNode ndAbstract = nd.SelectSingleNode("dct:abstract", xnManager);
lstData.Abstract = ndAbstract.InnerText;
///Get the link of service and service type
XmlNodeList ndRefList = nd.SelectNodes("dct:references", xnManager);
string urlCapabilities;
try
{
if (ndRefList != null)
{
for (int iRef = 0; iRef < ndRefList.Count; iRef++)
{
XmlNode ndRef = ndRefList[iRef];
if (ndRef.InnerText.Contains("GetCapabilities") || ndRef.InnerText.Contains("getcapabilities") || ndRef.InnerText.Contains("getCapabilities"))
{
urlCapabilities = ndRef.InnerText;
if (urlCapabilities.Contains("=WMS") || urlCapabilities.Contains("=wms"))
{
lstData.SvicType = "WMS";
} ///Identify the service type
else
{
break;
}
string[] rUrlCapabilities = urlCapabilities.Split('?');
lstData.SvrUrl = rUrlCapabilities[0] + '?';
if (rUrlCapabilities[1].Contains("map="))
{
string[] urlProperties = rUrlCapabilities[1].Split('&');
lstData.SvrUrl += urlProperties[0] + '&';
}
break;
}
else if (ndRef.InnerText.Contains("Capabilities") || ndRef.InnerText.Contains("capabilities"))
{
///Write log for invalid GetCapabilities url
Log cLog = new Log("InvalidGetCapabilitiesUrl");
cLog.WriteLog(ndTitle.InnerText);
cLog.WriteLog(ndRef.InnerText);
cLog.CloseLog();
}
}
}
}
catch (Exception ex)
{ throw ex; }
return(lstData);
}
private void Add2DaList(ListDataModel daModel)
{
rDataList.Add(daModel);
}
/// <summary>
/// Parse the response from Geoportal catalog, with multi distributions in the response
/// </summary>
private ListDataModel ParseEachMultiDistGeoportalSearchResult(XmlNode nd, XmlNamespaceManager xnManager)
{
ListDataModel lstData = new ListDataModel();
///Get record title info
XmlNode ndTitle = nd.SelectSingleNode("dc:title", xnManager);
lstData.Title = ndTitle.InnerText;
///Get metadata id info
XmlNodeList ndIdentifierList = nd.SelectNodes("dc:identifier", xnManager);
for (int i = 0; i < ndIdentifierList.Count; i++)
{
XmlNode ndMetaDaId = ndIdentifierList[i];
if (ndMetaDaId.InnerText != null)
{
lstData.MetadataId = ndMetaDaId.InnerText;
}
for (int j = 0; j < ndMetaDaId.Attributes.Count; j++)
{
if (ndMetaDaId.Attributes[j].Name == "scheme" && ndMetaDaId.Attributes[j].Value.Contains("DocID"))
{
lstData.MetadataId = ndMetaDaId.InnerText; break;
}
}
}
///Get abstract info
XmlNode ndAbstract = nd.SelectSingleNode("dct:abstract", xnManager);
lstData.Abstract = ndAbstract.InnerText;
///Get the link of service and service type
XmlNodeList ndRefList = nd.SelectNodes("dct:references", xnManager);
string urlCapabilities;
try
{
if (ndRefList != null)
{
for (int iRef = 0; iRef < ndRefList.Count; iRef++)
{
XmlNode ndRef = ndRefList[iRef];
for (int iAttr = 0; iAttr < ndRef.Attributes.Count; iAttr++)
{
if (ndRef.Attributes[iAttr].Name == "scheme" && ndRef.Attributes[iAttr].Value.Contains("OGC:WMS"))
{
lstData.SvicType = "WMS";
urlCapabilities = ndRef.InnerText;
string[] rUrlCapabilities = urlCapabilities.Split('?');
lstData.SvrUrl = rUrlCapabilities[0] + '?';
}
}
}
}
}
catch (Exception ex)
{ throw ex; }
return(lstData);
}
private void btnSearch_Click(object sender, EventArgs e)
{
this.Cursor = Cursors.WaitCursor;
btnMetaDoc.Enabled = false;
btnAdd.Enabled = false;
cCswSearch.CswUrl = tboxSearchText.Text;
pPageSwitchCri.StartPosition = 1; ///Set the start position for page switcher
///Send search request////////////////////////////////////////
if (tboxSearchText.Text == "")
{
tboxSearchText.Text = "*";
}
pPostDaCri.SearchText = tboxSearchText.Text; ///Set search key word
pPostDaCri.QueryName = cboSearchName.SelectedItem.ToString(); ///Set search name
// CSW Servers which use pycsw need to have the namespace before the query name and are case sensitive
if ((cCswSearch.CatalogUrl == "http://catalog.data.gov/csw?") || (cCswSearch.CatalogUrl == "http://geothermaldata.org/csw?"))
{
switch (pPostDaCri.QueryName)
{
case "AnyText":
pPostDaCri.QueryName = "csw:AnyText";
break;
case "Title":
pPostDaCri.QueryName = "dc:title";
break;
case "Abstract":
pPostDaCri.QueryName = "dct:abstract";
break;
}
}
pPostDaCri.StartPosition = pPageSwitchCri.StartPosition.ToString(); ///Set start position for search
///Define if the search is only for wms service / live data
pPostDaCri.IsWmsOnly = IsWmsOnly(cboCatalog.SelectedIndex); ///Define if the search is only for wms service
pPostDaCri.IsLiveDataOnly = IsLivedataOnly(cboCatalog.SelectedIndex); ///Define if the search is only for live data
///Define if use the current extent
if (cboxCurrentExtent.Checked == true)
{
pPostDaCri.Envelope = GetCurrentExtent();
}
else
{
pPostDaCri.Envelope = null;
}
cCswSearch.CswRequest(pPostDaCri, cboCatalog.SelectedIndex); ///Send request and parse response
//////////////////////////////////////////////////////////////
///Set value for number of records and page switcher/////////////////////////////
lbNumRecords.Text = "Found " + cCswSearch.NumRecords + " Records";
int numRecords = Convert.ToInt32(cCswSearch.NumRecords);
pPageSwitchCri.NumPages = numRecords / 15; ///Set the total number of pages for page switcher
if (numRecords % 15 != 0)
{
pPageSwitchCri.NumPages++;
}
if (pPageSwitchCri.NumPages > 0)
{
lbNxtPage.Enabled = true;
} ///Enable the next page function
lbPage.Text = "Page" + "1" + "/" + pPageSwitchCri.NumPages.ToString();
pPageSwitchCri.CurrentPage = 1; ///Set the current page number for page switcher
/////////////////////////////////////////////////////////////////////////////////
///List Results/////////////////////////////////////////////
rList = cCswSearch.DataList;
lboxResults.Items.Clear();
for (int i = 0; i < rList.Count; i++)
{
ListDataModel list = rList[i] as ListDataModel;
lboxResults.Items.Add(list.Title); ///List all services
}
////////////////////////////////////////////////////////////
this.Cursor = Cursors.Default;
}