Examples with RowDistributionInterface org.pentaho.di.trans.step.RowDistributionInterface used on opensource projects

Example 6 with RowDistributionInterface

use of org.pentaho.di.trans.step.RowDistributionInterface in project pentaho-kettle by pentaho.

the class TransGraph method askUserForCustomDistributionMethod.

public RowDistributionInterface askUserForCustomDistributionMethod() {
    List<PluginInterface> plugins = PluginRegistry.getInstance().getPlugins(RowDistributionPluginType.class);
    if (Utils.isEmpty(plugins)) {
        return null;
    }
    List<String> choices = new ArrayList<>();
    for (PluginInterface plugin : plugins) {
        choices.add(plugin.getName() + " : " + plugin.getDescription());
    }
    EnterSelectionDialog dialog = new EnterSelectionDialog(shell, choices.toArray(new String[choices.size()]), "Select distribution method", "Please select the row distribution method:");
    if (dialog.open() != null) {
        PluginInterface plugin = plugins.get(dialog.getSelectionNr());
        try {
            return (RowDistributionInterface) PluginRegistry.getInstance().loadClass(plugin);
        } catch (Exception e) {
            new ErrorDialog(shell, "Error", "Error loading row distribution plugin class", e);
            return null;
        }
    } else {
        return null;
    }
}