/// <summary>
/// Retrieves the selected metadata (in search result listbox) from CSW catalog. Exception shall be thrown.
/// </summary>
/// <remarks>
/// Called in View Metadata, Download Metadata, and Add to Map
/// </remarks>
/// <returns>A XMLDocument object if metadata was retrieved successfully. Null if otherwise.</returns>
private void RetrieveAddToMapInfoFromCatalog()
{
try
{
// validate
if (catalogComboBox.SelectedIndex == -1) { throw new Exception(StringResources.NoCatalogSelected); }
if (dgvCswRecords.SelectedRows.Count == 0) { throw new Exception(StringResources.NoSearchResultSelected); }
CswCatalog catalog = (CswCatalog)catalogComboBox.SelectedItem;
if (catalog == null) { throw new NullReferenceException(StringResources.CswCatalogIsNull); }
CswRecord record = (CswRecord)dgvCswRecords.CurrentRow.DataBoundItem;
if (record == null) throw new NullReferenceException(StringResources.CswRecordIsNull);
// connect to catalog if needed
if (!catalog.IsConnected())
{
string errMsg = "";
try { catalog.Connect(_isWriteLogs); }
catch (Exception ex) { errMsg = ex.Message; }
// exit if still not connected
if (!catalog.IsConnected())
{
ShowErrorMessageBox(StringResources.ConnectToCatalogFailed + "\r\n" + errMsg);
}
}
// retrieve metadata doc by its ID
if (_searchRequest == null) { _searchRequest = new CswSearchRequest(_isWriteLogs); }
_searchRequest.Catalog = catalog;
try
{
_searchRequest.GetAddToMapInfoByID(record.ID);
}
catch (Exception ex)
{
ShowDetailedErrorMessageBox(StringResources.RetrieveMetadataFromCatalogFailed, _searchRequest.Response().ResponseXML);
System.Diagnostics.Trace.WriteLine(StringResources.RetrieveMetadataFromCatalogFailed);
System.Diagnostics.Trace.WriteLine(ex.Message);
System.Diagnostics.Trace.WriteLine(_searchRequest.Response().ResponseXML);
}
}
catch (Exception ex)
{
ShowErrorMessageBox(StringResources.RetrieveMetadataFromCatalogFailed + "\r\n" + ex.Message);
}
}
/// <summary>
/// Search CSW catalog with the criteria defined by user
/// </summary>
/// <param name="sender">event sender</param>
/// <param name="e">event args</param>
private void FindButton_Click(object sender, EventArgs e)
{
StringBuilder sb = new StringBuilder();
try
{
// Todo: add more validation. only minimum validation at this point.
if (catalogComboBox.SelectedIndex == -1)
{
ShowErrorMessageBox(StringResources.PleaseSelectACswCatalog);
return;
}
CswCatalog catalog = (CswCatalog)catalogComboBox.SelectedItem;
if (catalog == null) { throw new NullReferenceException(StringResources.CswCatalogIsNull); }
// reset GUI for search results
ResetSearchResultsGUI();
System.Windows.Forms.Cursor.Current = Cursors.WaitCursor;
if (!catalog.IsConnected())
{
string errMsg = "";
try { catalog.Connect(_isWriteLogs);
}
catch (Exception ex) { errMsg = ex.Message; }
if (!catalog.IsConnected())
{
sb.AppendLine("Failed to connect to Catalog");
ShowErrorMessageBox (StringResources.ConnectToCatalogFailed + "\r\n" + errMsg);
return;
}
}
// todo: need paging maganism. update SearchCriteria.StartPoistion
// generate search criteria
CswSearchCriteria searchCriteria = new CswSearchCriteria();
searchCriteria.SearchText = searchPhraseTextBox.Text;
searchCriteria.SearchTextLogicalOperator = (CswSearchCriteria.LogicalOperator)cbSearchTextLO.SelectedIndex;
searchCriteria.FilterLogicalOperator = CswSearchCriteria.LogicalOperator.And;
searchCriteria.Organisation = tbOrganisation.Text;
if (cbDownload.Checked) searchCriteria.TypesOfUse.Add(cbDownload.Text);
if (cbRaadplegen.Checked) searchCriteria.TypesOfUse.Add(cbRaadplegen.Text);
if (cbAchtergrond.Checked) searchCriteria.TypesOfUse.Add(cbAchtergrond.Text);
searchCriteria.StartPosition = 1;
searchCriteria.MaxRecords = (int)maxResultsNumericUpDown.Value;
//searchCriteria.LiveDataAndMapOnly = (liveDataAndMapsOnlyCheckBox.Checked);
searchCriteria.RefinePreviousFilter = ((cbRefine.Checked) && (cbRefine.Enabled));
//if (useCurrentExtentCheckBox.Checked)
//{
// try { searchCriteria.Envelope = CurrentMapViewExtent(); }
// catch (Exception ex)
// {
// String errMsg = StringResources.GetCurrentExtentFailed + "\r\n" +
// ex.Message + "\r\n" + "\r\n" +
// StringResources.UncheckCurrentExtentAndTryAgain;
// sb.AppendLine(errMsg);
// ShowErrorMessageBox(errMsg);
// return;
// }
//}
//else
//{
searchCriteria.Envelope = null;
//}
// search
if (_searchRequest == null) { _searchRequest = new CswSearchRequest(_isWriteLogs); }
_searchRequest.Catalog = catalog;
_searchRequest.Criteria = searchCriteria;
_searchRequest.Search();
ShowSearchResults(sb);
}
catch (Exception ex)
{
sb.AppendLine(ex.Message);
ShowErrorMessageBox (ex.Message);
}
finally
{
if (_isWriteLogs)
Utils.writeFile(sb.ToString());
System.Windows.Forms.Cursor.Current = Cursors.Default;
}
}
/// <summary>
/// Retrieves the selected metadata (in search result listbox) from CSW catalog. Exception shall be thrown.
/// </summary>
/// <remarks>
/// Called in View Metadata, Download Metadata, and Add to Map
/// </remarks>
/// <returns>A XMLDocument object if metadata was retrieved successfully. Null if otherwise.</returns>
private XmlDocument RetrieveSelectedMetadataFromCatalog(bool bApplyTransform)
{
try
{
// validate
if (catalogComboBox.SelectedIndex == -1) { throw new Exception(StringResources.NoCatalogSelected); }
if (dgvCswRecords.SelectedRows.Count == 0) { throw new Exception(StringResources.NoSearchResultSelected); }
CswCatalog catalog = (CswCatalog)catalogComboBox.SelectedItem;
if (catalog == null) { throw new NullReferenceException(StringResources.CswCatalogIsNull); }
CswRecord record = (CswRecord)dgvCswRecords.CurrentRow.DataBoundItem;
if (record == null) throw new NullReferenceException(StringResources.CswRecordIsNull);
// connect to catalog if needed
if (!catalog.IsConnected())
{
string errMsg = "";
try { catalog.Connect(_isWriteLogs); }
catch (Exception ex) { errMsg = ex.Message; }
// exit if still not connected
if (!catalog.IsConnected())
{
ShowErrorMessageBox(StringResources.ConnectToCatalogFailed + "\r\n" + errMsg);
return null;
}
}
bool isTransformed = false;
// retrieve metadata doc by its ID
if (_searchRequest == null) { _searchRequest = new CswSearchRequest(_isWriteLogs); }
_searchRequest.Catalog = catalog;
try {
isTransformed = _searchRequest.GetMetadataByID(record.ID, bApplyTransform);
}
catch (Exception ex)
{
ShowDetailedErrorMessageBox(StringResources.RetrieveMetadataFromCatalogFailed, _searchRequest.Response().ResponseXML);
System.Diagnostics.Trace.WriteLine(StringResources.RetrieveMetadataFromCatalogFailed);
System.Diagnostics.Trace.WriteLine(ex.Message);
System.Diagnostics.Trace.WriteLine(_searchRequest.Response().ResponseXML);
return null;
}
CswSearchResponse response = _searchRequest.Response();
CswRecord recordMetadata = response.Records[0];
if (recordMetadata.FullMetadata.Length == 0) { throw new Exception(StringResources.EmptyMetadata); }
if (!isTransformed)
{
XmlDocument xmlDoc = new XmlDocument();
try { xmlDoc.LoadXml(recordMetadata.FullMetadata); }
catch (XmlException xmlEx)
{
ShowDetailedErrorMessageBox(StringResources.LoadMetadataFailed + "\r\n" + xmlEx.Message,
recordMetadata.FullMetadata);
return null;
}
return xmlDoc;
}
else
{
styledRecordResponse = recordMetadata.FullMetadata;
return null;
}
}
catch (Exception ex)
{
ShowErrorMessageBox(StringResources.RetrieveMetadataFromCatalogFailed + "\r\n" + ex.Message);
return null;
}
}