Examples with CsvEncoder org.spf4j.avro.csv.CsvEncoder used on opensource projects

Example 1 with CsvEncoder

use of org.spf4j.avro.csv.CsvEncoder in project spf4j by zolyfarkas.

the class MStoreViewJInternalFrame method exportButtonActionPerformed.

// GEN-LAST:event_plotButtonActionPerformed
@SuppressFBWarnings("UP_UNUSED_PARAMETER")
private void exportButtonActionPerformed(java.awt.event.ActionEvent evt) {
    // GEN-FIRST:event_exportButtonActionPerformed
    TreePath[] selectionPaths = measurementTree.getSelectionPaths();
    Set<Schema> selectedTables = getSelectedTables(selectionPaths);
    if (!selectedTables.isEmpty()) {
        JFileChooser chooser = new JFileChooser();
        chooser.setDialogType(JFileChooser.SAVE_DIALOG);
        int returnVal = chooser.showOpenDialog(this);
        if (returnVal == JFileChooser.APPROVE_OPTION) {
            File file = chooser.getSelectedFile();
            for (Schema metric : selectedTables) {
                try (AvroCloseableIterable<TimeSeriesRecord> obs = reader.getMeasurementData(metric, Instant.EPOCH, Instant.now())) {
                    CsvWriter writer = Csv.CSV.writer(Files.newBufferedWriter(file.toPath(), StandardCharsets.UTF_8));
                    CsvEncoder encoder = new CsvEncoder(writer, Schema.createArray(metric));
                    encoder.writeHeader();
                    GenericDatumWriter dw = new GenericDatumWriter(metric);
                    for (TimeSeriesRecord o : obs) {
                        dw.write(o, encoder);
                    }
                    encoder.flush();
                } catch (IOException ex) {
                    throw new UncheckedIOException(ex);
                }
            }
        }
    }
}