Examples with StreamTransferConsumer org.jkiss.dbeaver.tools.transfer.stream.StreamTransferConsumer used on opensource projects

Example 6 with StreamTransferConsumer

use of org.jkiss.dbeaver.tools.transfer.stream.StreamTransferConsumer in project dbeaver by dbeaver.

the class ResultSetHandlerCopyAs method openResultsWith.

private static void openResultsWith(IResultSetController resultSet, DataTransferProcessorDescriptor processor) {
    ResultSetDataContainerOptions options = new ResultSetDataContainerOptions();
    IResultSetSelection rsSelection = resultSet.getSelection();
    List<ResultSetRow> rsSelectedRows = rsSelection.getSelectedRows();
    List<DBDAttributeBinding> rsSelectedAttributes = rsSelection.getSelectedAttributes();
    if (rsSelectedRows.size() > 1 || rsSelectedAttributes.size() > 1) {
        List<Long> selectedRows = new ArrayList<>();
        for (ResultSetRow selectedRow : rsSelectedRows) {
            selectedRows.add((long) selectedRow.getRowNumber());
        }
        List<String> selectedAttributes = new ArrayList<>();
        for (DBDAttributeBinding attributeBinding : rsSelectedAttributes) {
            selectedAttributes.add(attributeBinding.getName());
        }
        options.setSelectedRows(selectedRows);
        options.setSelectedColumns(selectedAttributes);
    }
    ResultSetDataContainer dataContainer = new ResultSetDataContainer(resultSet, options);
    if (dataContainer.getDataSource() == null) {
        DBWorkbench.getPlatformUI().showError("Copy as " + processor.getName(), ModelMessages.error_not_connected_to_database);
        return;
    }
    AbstractJob exportJob = new AbstractJob("Copy as " + processor.getName()) {

        {
            setUser(true);
            setSystem(false);
        }

        @Override
        protected IStatus run(DBRProgressMonitor monitor) {
            monitor.beginTask("Copy data as", 3);
            try {
                monitor.subTask("Init");
                IDataTransferProcessor processorInstance = processor.getInstance();
                if (!(processorInstance instanceof IStreamDataExporter)) {
                    return Status.CANCEL_STATUS;
                }
                IStreamDataExporter exporter = (IStreamDataExporter) processorInstance;
                StreamTransferConsumer consumer = new StreamTransferConsumer();
                StreamConsumerSettings settings = new StreamConsumerSettings();
                settings.setOutputClipboard(true);
                settings.setOutputEncodingBOM(false);
                settings.setOpenFolderOnFinish(false);
                Map<String, Object> properties = new HashMap<>();
                for (DBPPropertyDescriptor prop : processor.getProperties()) {
                    properties.put(prop.getId(), prop.getDefaultValue());
                }
                consumer.initTransfer(dataContainer, settings, new IDataTransferConsumer.TransferParameters(processor.isBinaryFormat(), processor.isHTMLFormat()), exporter, properties);
                DBDDataFilter dataFilter = resultSet.getModel().getDataFilter();
                DatabaseTransferProducer producer = new DatabaseTransferProducer(dataContainer, dataFilter);
                DatabaseProducerSettings producerSettings = new DatabaseProducerSettings();
                producerSettings.setOpenNewConnections(false);
                if (resultSet.isHasMoreData()) {
                    // For long resultsets we may need to open new connection
                    UIServiceSQL serviceSQL = DBWorkbench.getService(UIServiceSQL.class);
                    if (serviceSQL != null) {
                        producerSettings.setOpenNewConnections(serviceSQL.useIsolatedConnections(resultSet));
                    }
                }
                producerSettings.setExtractType(DatabaseProducerSettings.ExtractType.SINGLE_QUERY);
                producerSettings.setQueryRowCount(false);
                producerSettings.setSelectedRowsOnly(!CommonUtils.isEmpty(options.getSelectedRows()));
                producerSettings.setSelectedColumnsOnly(!CommonUtils.isEmpty(options.getSelectedColumns()));
                monitor.worked(1);
                monitor.subTask("Export data");
                producer.transferData(monitor, consumer, null, producerSettings, null);
                monitor.worked(1);
                monitor.subTask("Finalize export");
                consumer.finishTransfer(monitor, false);
                consumer.finishTransfer(monitor, true);
                monitor.worked(1);
            } catch (Exception e) {
                DBWorkbench.getPlatformUI().showError("Error opening in " + processor.getAppName(), null, e);
            } finally {
                monitor.done();
            }
            return Status.OK_STATUS;
        }
    };
    exportJob.schedule();
}