Examples with SqlExplorerTalendDataSet net.sourceforge.sqlexplorer.dataset.mapdb.SqlExplorerTalendDataSet used on opensource projects

Example 1 with SqlExplorerTalendDataSet

use of net.sourceforge.sqlexplorer.dataset.mapdb.SqlExplorerTalendDataSet in project tdq-studio-se by Talend.

the class ExportCSVAction method run.

/**
 * Main method. Prompt for file name and save table contents to csv file.
 */
@Override
public void run() {
    final CsvExportOptionsDlg dlg = new CsvExportOptionsDlg(_table.getShell());
    if (dlg.open() != Window.OK) {
        return;
    }
    // let's show the fancy wait cursor..
    BusyIndicator.showWhile(Display.getCurrent(), new Runnable() {

        public void run() {
            try {
                // create new file
                File file = new File(dlg.getFilename());
                if (file.exists()) {
                    // overwrite existing files
                    file.delete();
                }
                file.createNewFile();
                PrintStream writer = new PrintStream(file, dlg.getCharacterSet());
                // $NON-NLS-1$
                StringBuffer buffer = new StringBuffer("");
                // get column header and separator preferences
                String columnSeparator = dlg.getDelimiter();
                boolean includeColumnNames = dlg.includeHeaders();
                boolean rtrim = dlg.trimSpaces();
                boolean quote = dlg.quoteText();
                String nullValue = dlg.getNullValue();
                boolean isExportAll = dlg.isExportAll();
                // check if there is somethign in our table
                DataSet dataSet = (DataSet) _table.getData();
                if (!isExportAll && SqlExplorerTalendDataSet.class.isInstance(dataSet)) {
                    dataSet = ((SqlExplorerTalendDataSet) dataSet).getCurrentPageDataSet();
                }
                if (dataSet == null) {
                    return;
                }
                // export column names if we need to
                if (includeColumnNames) {
                    DataSet.Column[] columns = dataSet.getColumns();
                    for (int i = 0; i < columns.length; i++) {
                        if (i != 0) {
                            buffer.append(columnSeparator);
                        }
                        buffer.append(columns[i].getCaption());
                    }
                    writer.println(buffer.toString());
                }
                // export column data
                int columnCount = _table.getColumnCount();
                for (int i = 0; i < dataSet.getRowCount(); i++) {
                    // $NON-NLS-1$
                    buffer = new StringBuffer("");
                    DataSetRow row = dataSet.getRow(i);
                    for (int j = 0; j < columnCount; j++) {
                        Object o = row.getRawObjectValue(j);
                        String t = o == null ? nullValue : o.toString();
                        if (rtrim) {
                            t = TextUtil.rtrim(t);
                        }
                        if (quote && o instanceof String) {
                            // $NON-NLS-1$
                            buffer.append("\"");
                            buffer.append(t);
                            // $NON-NLS-1$
                            buffer.append("\"");
                        } else {
                            buffer.append(t);
                        }
                        /* don't append separator _after_ last column */
                        if (j < columnCount - 1) {
                            buffer.append(columnSeparator);
                        }
                    }
                    writer.println(buffer.toString());
                }
                writer.close();
            } catch (final Exception e) {
                _table.getShell().getDisplay().asyncExec(new Runnable() {

                    public void run() {
                        MessageDialog.openError(_table.getShell(), Messages.getString("SQLResultsView.Error.Export.Title"), e.getMessage());
                    }
                });
            }
        }
    });
}