/// <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 (cmbCswCatalog.SelectedIndex == -1)
{
MessageBox.Show(resourceManager.GetString("catalogNotSelected"), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (lstSearchResults.SelectedIndex == -1) { throw new Exception(resourceManager.GetString("searchNotSelected")); }
CswCatalog catalog = (CswCatalog)cmbCswCatalog.SelectedItem;
if (catalog == null) { throw new NullReferenceException(resourceManager.GetString("catalogNotSpecified")); }
CswRecord record = (CswRecord)lstSearchResults.SelectedItem;
if (record == null) throw new NullReferenceException(resourceManager.GetString("searchNotSelected"));
// connect to catalog if needed
if (!catalog.IsConnected())
{
string errMsg = "";
try { catalog.Connect(); }
catch (Exception ex) { errMsg = ex.Message; }
// exit if still not connected
if (!catalog.IsConnected())
{
MessageBox.Show(resourceManager.GetString("catalogConnectFailed"), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
CswSearchRequest searchRequest = new CswSearchRequest();
searchRequest.Catalog = catalog;
try
{
searchRequest.GetAddToMapInfoByID(record.ID);
_mapServerUrl = searchRequest.GetMapServerUrl();
}
catch (Exception ex)
{
FormMessageBox frmMessageBox = new FormMessageBox();
frmMessageBox.Init("Failed to retrieve metadata from service: " + ex.Message,
"Response from CSW service:\r\n" + searchRequest.GetResponse().ResponseXML,
"Error");
frmMessageBox.ShowDialog(this);
}
}
catch (Exception ex)
{
MessageBox.Show(resourceManager.GetString("loadXMLException"), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
/// <summary>
/// Retrieves the selected metadata (in search result listbox) from CSW catalog.
/// It handles including GUI validation and metadata retrieveal.
/// </summary>
/// <remarks>
/// Reused in View Summary, View Detail, and Download buttons.
/// </remarks>
/// <returns>A XMLDocument object if successfully retrieved metadata. Null if otherwise.</returns>
private XmlDocument RetrieveSelectedMetadataFromCatalog(bool bApplyTransform)
{
if (cmbCswCatalog.SelectedIndex == -1)
{
MessageBox.Show(resourceManager.GetString("catalogNotSelected"), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return null;
}
CswCatalog catalog = (CswCatalog)cmbCswCatalog.SelectedItem;
if (catalog == null) { throw new NullReferenceException(resourceManager.GetString("catalogNotSpecified")); }
CswRecord record = (CswRecord)lstSearchResults.SelectedItem;
if (record == null) throw new NullReferenceException(resourceManager.GetString("searchNotSelected"));
// connect to catalog if not connected already
if (!catalog.IsConnected())
{
string errMsg = "";
try { catalog.Connect(); }
catch (Exception ex) { errMsg = ex.ToString(); }
if (!catalog.IsConnected())
{
MessageBox.Show(resourceManager.GetString("catalogConnectFailed"), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return null;
}
}
bool isTransformed = false;
// retrieve metadata doc by its ID
CswSearchRequest searchRequest = new CswSearchRequest();
searchRequest.Catalog = catalog;
try
{
//MessageBox.Show(record.ID);
isTransformed = searchRequest.GetMetadataByID(record.ID, bApplyTransform);
_mapServerUrl = searchRequest.GetMapServerUrl();
//MessageBox.Show(record.FullMetadata);
}
catch (Exception ex)
{
FormMessageBox frmMessageBox = new FormMessageBox();
frmMessageBox.Init("Failed to retrieve metadata from service: " + ex.Message,
"Response from CSW service:\r\n" + searchRequest.GetResponse().ResponseXML,
"Error");
frmMessageBox.ShowDialog(this);
return null;
}
CswSearchResponse response = searchRequest.GetResponse();
CswRecord recordMetadata = response.Records[0];
if (!isTransformed)
{
XmlDocument xmlDoc = new XmlDocument();
try { xmlDoc.LoadXml(recordMetadata.FullMetadata); }
catch (XmlException xmlEx)
{
MessageBox.Show(resourceManager.GetString("loadXMLException"), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return null;
}
return xmlDoc;
}
else
{
styledRecordResponse = recordMetadata.FullMetadata;
return null;
}
}
/// <summary>
/// Function on click of find button
/// </summary>
/// <param name="sender">The sender object</param>
/// <param name="e">The event arguments</param>
private void btnSearch_Click(object sender, EventArgs e)
{
try
{
if (cmbCswCatalog.SelectedIndex == -1)
{
MessageBox.Show(resourceManager.GetString("catalogNotSelected"), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
CswCatalog catalog = (CswCatalog)cmbCswCatalog.SelectedItem;
if (catalog == null) { throw new NullReferenceException(resourceManager.GetString("catalogNotSpecified")); }
if (!catalog.IsConnected())
{
string errMsg = "";
try { catalog.Connect(); }
catch (Exception ex) { errMsg = ex.ToString(); }
if (!catalog.IsConnected())
{
MessageBox.Show(resourceManager.GetString("catalogConnectFailed"), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
// clear up result list
lstSearchResults.DataSource = null;
Cursor.Current = Cursors.WaitCursor;
// genrate search criteria
CswSearchCriteria searchCriteria = new CswSearchCriteria();
searchCriteria.SearchText = txtSearchPhrase.Text;
searchCriteria.StartPosition = 1;
searchCriteria.MaxRecords = (int)nudNumOfResults.Value; ;
searchCriteria.LiveDataAndMapOnly = (chkLiveDataAndMapOnly.CheckState == CheckState.Checked);
searchCriteria.Envelope = null; // place holder
CswSearchRequest searchRequest = new CswSearchRequest();
searchRequest.Catalog = catalog;
searchRequest.Criteria = searchCriteria;
searchRequest.Search();
CswSearchResponse response = searchRequest.GetResponse();
ArrayList alRecords = CswObjectsToArrayList(response.Records);
if (alRecords.Count == 0)
{
MessageBox.Show(resourceManager.GetString("noRecordFound"), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
if (alRecords.Count > 0)
{
lstSearchResults.DataSource = alRecords;
lstSearchResults.DisplayMember = "Title";
lstSearchResults.ValueMember = "ID";
showAllFootPrintTSBtn.Enabled = catalog.Profile.SupportSpatialBoundary;
clearAllFootPrintTSBtn.Enabled = catalog.Profile.SupportSpatialBoundary;
displayFootPrintTSBtn.Enabled = catalog.Profile.SupportSpatialBoundary;
zoomToFootPrintTSBtn.Enabled = catalog.Profile.SupportSpatialBoundary;
showAll = true;
}
lblResult.Text = resourceManager.GetString("resultTxt") + " (" + alRecords.Count + ")";
}
catch (Exception ex)
{
MessageBox.Show(resourceManager.GetString("searchFailed"), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
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 (resultsListBox.SelectedIndex == -1) { throw new Exception(StringResources.NoSearchResultSelected); }
CswCatalog catalog = (CswCatalog)catalogComboBox.SelectedItem;
if (catalog == null) { throw new NullReferenceException(StringResources.CswCatalogIsNull); }
CswRecord record = (CswRecord)resultsListBox.SelectedItem;
if (record == null) throw new NullReferenceException(StringResources.CswRecordIsNull);
// connect to catalog if needed
if (!catalog.IsConnected())
{
string errMsg = "";
try { catalog.Connect(); }
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(); }
_searchRequest.Catalog = catalog;
try {
isTransformed = _searchRequest.GetMetadataByID(record.ID, bApplyTransform);
_mapServerUrl = _searchRequest.GetMapServerUrl();
}
catch (Exception ex)
{
ShowDetailedErrorMessageBox(StringResources.RetrieveMetadataFromCatalogFailed, _searchRequest.GetResponse().ResponseXML);
System.Diagnostics.Trace.WriteLine(StringResources.RetrieveMetadataFromCatalogFailed);
System.Diagnostics.Trace.WriteLine(ex.Message);
System.Diagnostics.Trace.WriteLine(_searchRequest.GetResponse().ResponseXML);
return null;
}
CswSearchResponse response = _searchRequest.GetResponse();
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;
}
}
/// <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 (resultsListBox.SelectedIndex == -1) { throw new Exception(StringResources.NoSearchResultSelected); }
CswCatalog catalog = (CswCatalog)catalogComboBox.SelectedItem;
if (catalog == null) { throw new NullReferenceException(StringResources.CswCatalogIsNull); }
CswRecord record = (CswRecord)resultsListBox.SelectedItem;
if (record == null) throw new NullReferenceException(StringResources.CswRecordIsNull);
// connect to catalog if needed
if (!catalog.IsConnected())
{
string errMsg = "";
try { catalog.Connect(); }
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(); }
_searchRequest.Catalog = catalog;
try
{
_searchRequest.GetAddToMapInfoByID(record.ID);
_mapServerUrl = _searchRequest.GetMapServerUrl();
}
catch (Exception ex)
{
ShowDetailedErrorMessageBox(StringResources.RetrieveMetadataFromCatalogFailed, _searchRequest.GetResponse().ResponseXML);
System.Diagnostics.Trace.WriteLine(StringResources.RetrieveMetadataFromCatalogFailed);
System.Diagnostics.Trace.WriteLine(ex.Message);
System.Diagnostics.Trace.WriteLine(_searchRequest.GetResponse().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();
}
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.StartPosition = 1;
searchCriteria.MaxRecords = (int)maxResultsNumericUpDown.Value;
searchCriteria.LiveDataAndMapOnly = (liveDataAndMapsOnlyCheckBox.Checked);
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(); }
_searchRequest.Catalog = catalog;
_searchRequest.Criteria = searchCriteria;
_searchRequest.Search();
CswSearchResponse response = _searchRequest.GetResponse();
// show search results
ArrayList alRecords = CswObjectsToArrayList(response.Records);
if (alRecords.Count > 0)
{
resultsListBox.BeginUpdate();
resultsListBox.DataSource = alRecords;
resultsListBox.DisplayMember = "Title";
resultsListBox.ValueMember = "ID";
resultsListBox.SelectedIndex = 0;
resultsListBox.EndUpdate();
showAllFootprintToolStripButton.Enabled = catalog.Profile.SupportSpatialBoundary;
clearAllFootprinttoolStripButton.Enabled = catalog.Profile.SupportSpatialBoundary;
showAll = true;
}
else
{
sb.AppendLine(StringResources.NoRecordsFound);
ShowErrorMessageBox(StringResources.NoRecordsFound);
}
resultsLabel.Text = StringResources.SearchResultsLabelText + " (" + alRecords.Count.ToString() + ")";
}
catch (Exception ex)
{
sb.AppendLine(ex.Message);
ShowErrorMessageBox (ex.Message);
}
finally
{
Utils.logger.writeLog(sb.ToString());
Cursor.Current = Cursors.Default;
}
}
