/**
* Evaluates the page
*
* <p>This checks whether the current settings on the page make any sense. If everything is fine,
* the settings are being put into the appropriate data container {@link ImportWizardModel} and
* the current page is marked as complete by invoking {@link #setPageComplete(boolean)}. Otherwise
* an error message is set, which will make sure the user is informed about the reason for the
* error.
*/
private void evaluatePage() {
setPageComplete(false);
setErrorMessage(null);
tablePreview.setVisible(false);
if (comboLocation.getText().equals("")) { // $NON-NLS-1$
return;
}
try {
if (!customLinebreak) {
detectLinebreak();
comboLinebreak.select(selectedLinebreak);
}
if (!customDelimiter) {
detectDelimiter();
comboDelimiter.select(selectedDelimiter);
}
readPreview();
} catch (IOException | IllegalArgumentException e) {
setErrorMessage(e.getMessage());
return;
} catch (TextParsingException e) {
setErrorMessage(Resources.getMessage("ImportWizardPageCSV.16")); // $NON-NLS-1$
return;
} catch (RuntimeException e) {
if (e.getCause() != null) {
setErrorMessage(e.getCause().getMessage());
} else {
setErrorMessage(e.getMessage());
}
return;
}
/* Put data into container */
ImportWizardModel data = wizardImport.getData();
data.setWizardColumns(wizardColumns);
data.setPreviewData(previewData);
data.setFirstRowContainsHeader(btnContainsHeader.getSelection());
data.setFileLocation(comboLocation.getText());
data.setCsvDelimiter(delimiters[selectedDelimiter]);
data.setCsvQuote(quotes[selectedQuote]);
data.setCsvEscape(escapes[selectedEscape]);
data.setCharset(
Charsets.getCharsetForName(Charsets.getNamesOfAvailableCharsets()[selectedCharset]));
data.setCsvLinebreak(
CSVSyntax.getLinebreakForLabel(CSVSyntax.getAvailableLinebreaks()[selectedLinebreak]));
/* Mark page as completed */
setPageComplete(true);
}
/**
* Cancel pressed.
*
* @return
*/
@Override
public boolean performCancel() {
try {
if (data.getJdbcConnection() != null && !data.getJdbcConnection().isClosed()) {
data.getJdbcConnection().close();
}
} catch (Exception e) {
/* Die silently */
}
return true;
}
/**
* Handles the correct ordering of wizard pages
*
* <p>This method makes sure that the correct page is shown once the user hits the "next" button.
* The page flow depends <code>currentPage</code> and the selected {@link
* ImportWizardModel#getSourceType() sourceType}.
*
* @param currentPage The page that is currently being shown
* @return The page that will be shown next
*/
@Override
public IWizardPage getNextPage(IWizardPage currentPage) {
this.currentPage = currentPage;
if (currentPage == sourcePage) {
SourceType src = data.getSourceType();
if (src == SourceType.CSV) {
return csvPage;
} else if (src == SourceType.JDBC) {
return jdbcPage;
} else if (src == SourceType.EXCEL) {
return xlsPage;
}
} else if (currentPage == csvPage) {
return columnPage;
} else if (currentPage == columnPage) {
return previewPage;
} else if (currentPage == jdbcPage) {
return tablePage;
} else if (currentPage == tablePage) {
return columnPage;
} else if (currentPage == xlsPage) {
return columnPage;
}
return null;
}
/**
* Gets executed once the wizard is about to finish
*
* <p>This will build an appropriate {@link ImportConfiguration} object, depending upon the {@link
* ImportWizardModel#getSourceType() source type} and the choices the user made during the process
* of the wizard.
*
* <p>{@link #configuration} will hold a reference of the object. This can be retrieved later on
* by {@link #getResultingConfiguration()}.
*
* @return
* @see {@link #getResultingConfiguration()}
*/
@Override
public boolean performFinish() {
if (data.getSourceType() == SourceType.CSV) {
configuration =
new ImportConfigurationCSV(
data.getFileLocation(),
data.getCharset(),
data.getCsvDelimiter(),
data.getCsvQuote(),
data.getCsvEscape(),
data.getCsvLinebreak(),
data.getFirstRowContainsHeader());
} else if (data.getSourceType() == SourceType.EXCEL) {
configuration =
new ImportConfigurationExcel(
data.getFileLocation(), data.getExcelSheetIndex(), data.getFirstRowContainsHeader());
} else if (data.getSourceType() == SourceType.JDBC) {
configuration =
new ImportConfigurationJDBC(data.getJdbcConnection(), data.getSelectedJdbcTable());
} else {
throw new RuntimeException("Configuration type not supported"); // $NON-NLS-1$
}
for (ImportColumn c : data.getEnabledColumns()) {
c.setCleansing(data.isPerformCleansing());
configuration.addColumn(c);
}
if (data.getSourceType() != SourceType.JDBC) {
try {
if (data.getJdbcConnection() != null && !data.getJdbcConnection().isClosed()) {
data.getJdbcConnection().close();
}
} catch (Exception e) {
/* Die silently */
}
}
return true;
}
