/**
* eobjects.org DataCleaner
* Copyright (C) 2010 eobjects.org
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.eobjects.datacleaner.widgets.properties;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.ArrayList;
import java.util.List;
import javax.inject.Inject;
import javax.swing.JComboBox;
import org.eobjects.analyzer.data.DataTypeFamily;
import org.eobjects.analyzer.data.InputColumn;
import org.eobjects.analyzer.data.MutableInputColumn;
import org.eobjects.analyzer.descriptors.ConfiguredPropertyDescriptor;
import org.eobjects.analyzer.job.builder.AbstractBeanJobBuilder;
import org.eobjects.analyzer.job.builder.AnalysisJobBuilder;
import org.eobjects.analyzer.job.builder.SourceColumnChangeListener;
import org.eobjects.analyzer.job.builder.TransformerChangeListener;
import org.eobjects.analyzer.job.builder.TransformerJobBuilder;
import org.eobjects.datacleaner.widgets.SchemaStructureComboBoxListRenderer;
import org.jdesktop.swingx.combobox.ListComboBoxModel;
/**
* {@link PropertyWidget} for single {@link InputColumn}s. Displays the
* selection as a ComboBox, used for optional input columns.
*
* @author Kasper Sørensen
*/
public class SingleInputColumnComboBoxPropertyWidget extends AbstractPropertyWidget<InputColumn<?>> implements
SourceColumnChangeListener, TransformerChangeListener {
private static final long serialVersionUID = 1L;
private final JComboBox _comboBox;
private final AnalysisJobBuilder _analysisJobBuilder;
private final DataTypeFamily _dataTypeFamily;
private final ConfiguredPropertyDescriptor _propertyDescriptor;
private final AbstractBeanJobBuilder<?, ?, ?> _beanJobBuilder;
private volatile List<InputColumn<?>> _inputColumns;
@Inject
public SingleInputColumnComboBoxPropertyWidget(AnalysisJobBuilder analysisJobBuilder,
AbstractBeanJobBuilder<?, ?, ?> beanJobBuilder, ConfiguredPropertyDescriptor propertyDescriptor) {
super(beanJobBuilder, propertyDescriptor);
_comboBox = new JComboBox();
_comboBox.setRenderer(new SchemaStructureComboBoxListRenderer());
_comboBox.addItemListener(new ItemListener() {
@Override
public void itemStateChanged(ItemEvent e) {
fireValueChanged();
}
});
_analysisJobBuilder = analysisJobBuilder;
_analysisJobBuilder.getSourceColumnListeners().add(this);
_analysisJobBuilder.getTransformerChangeListeners().add(this);
_beanJobBuilder = beanJobBuilder;
_propertyDescriptor = propertyDescriptor;
_dataTypeFamily = propertyDescriptor.getInputColumnDataTypeFamily();
updateComponents();
add(_comboBox);
}
private void updateComponents() {
_inputColumns = _analysisJobBuilder.getAvailableInputColumns(_dataTypeFamily);
if (_beanJobBuilder instanceof TransformerJobBuilder) {
// remove all the columns that are generated by the transformer
// itself!
TransformerJobBuilder<?> tjb = (TransformerJobBuilder<?>) _beanJobBuilder;
List<MutableInputColumn<?>> outputColumns = tjb.getOutputColumns();
_inputColumns.removeAll(outputColumns);
}
InputColumn<?> currentValue = (InputColumn<?>) _beanJobBuilder.getConfiguredProperty(_propertyDescriptor);
if (currentValue != null) {
if (!_inputColumns.contains(currentValue)) {
_inputColumns.add(currentValue);
}
}
if (!_propertyDescriptor.isRequired()) {
_inputColumns = new ArrayList<InputColumn<?>>(_inputColumns);
_inputColumns.add(0, null);
}
_comboBox.setModel(new ListComboBoxModel<InputColumn<?>>(_inputColumns));
_comboBox.setSelectedItem(currentValue);
fireValueChanged();
}
@Override
public void onAdd(InputColumn<?> sourceColumn) {
if (_dataTypeFamily == DataTypeFamily.UNDEFINED || _dataTypeFamily == sourceColumn.getDataTypeFamily()) {
updateComponents();
updateUI();
}
}
@Override
public void onRemove(InputColumn<?> sourceColumn) {
handleRemovedColumn(sourceColumn);
}
private void handleRemovedColumn(InputColumn<?> column) {
if (_dataTypeFamily == DataTypeFamily.UNDEFINED || _dataTypeFamily == column.getDataTypeFamily()) {
InputColumn<?> currentValue = (InputColumn<?>) _beanJobBuilder.getConfiguredProperty(_propertyDescriptor);
if (currentValue != null) {
if (currentValue.equals(column)) {
_beanJobBuilder.setConfiguredProperty(_propertyDescriptor, null);
}
}
updateComponents();
updateUI();
}
}
@Override
public void onAdd(TransformerJobBuilder<?> transformerJobBuilder) {
}
@Override
public void onOutputChanged(TransformerJobBuilder<?> transformerJobBuilder, List<MutableInputColumn<?>> outputColumns) {
updateComponents();
updateUI();
}
@Override
public void onRemove(TransformerJobBuilder<?> transformerJobBuilder) {
List<MutableInputColumn<?>> outputColumns = transformerJobBuilder.getOutputColumns();
for (MutableInputColumn<?> column : outputColumns) {
handleRemovedColumn(column);
}
}
@Override
public void removeNotify() {
super.removeNotify();
_analysisJobBuilder.getSourceColumnListeners().remove(this);
_analysisJobBuilder.getTransformerChangeListeners().remove(this);
}
@Override
public InputColumn<?> getValue() {
return (InputColumn<?>) _comboBox.getSelectedItem();
}
@Override
public void onConfigurationChanged(TransformerJobBuilder<?> transformerJobBuilder) {
}
@Override
public void onRequirementChanged(TransformerJobBuilder<?> transformerJobBuilder) {
}
@Override
protected void setValue(InputColumn<?> value) {
updateComponents();
updateUI();
}
}