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/**
* DataCleaner (community edition)
* Copyright (C) 2014 Free Software Foundation, Inc.
*
* 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.datacleaner.widgets.properties;
import java.awt.BorderLayout;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.WeakHashMap;
import javax.swing.JComponent;
import javax.swing.ListCellRenderer;
import org.apache.metamodel.util.LazyRef;
import org.datacleaner.api.InputColumn;
import org.datacleaner.descriptors.ConfiguredPropertyDescriptor;
import org.datacleaner.descriptors.EnumerationProvider;
import org.datacleaner.descriptors.EnumerationValue;
import org.datacleaner.job.builder.ComponentBuilder;
import org.datacleaner.panels.DCPanel;
import org.datacleaner.util.DefaultEnumMatcher;
import org.datacleaner.util.EnumMatcher;
import org.datacleaner.widgets.DCCheckBox;
import org.datacleaner.widgets.DCComboBox;
import org.datacleaner.widgets.EnumComboBoxListRenderer;
/**
* A specialized property widget for multiple input columns that are mapped to
* enum values. This widget looks like the
* {@link MultipleInputColumnsPropertyWidget}, but is enhanced with enum combo
* boxes.
*/
public class MultipleMappedEnumsPropertyWidget extends MultipleInputColumnsPropertyWidget {
public class MappedEnumsPropertyWidget extends MinimalPropertyWidget {
public MappedEnumsPropertyWidget(final ComponentBuilder componentBuilder,
final ConfiguredPropertyDescriptor propertyDescriptor) {
super(componentBuilder, propertyDescriptor);
}
@Override
public JComponent getWidget() {
// do not return a visual widget
return null;
}
@Override
public boolean isSet() {
return MultipleMappedEnumsPropertyWidget.this.isSet();
}
@Override
public Object[] getValue() {
final EnumerationValue[] values = getMappedEnums();
if (_mappedEnumsProperty instanceof EnumerationProvider) {
return values;
} else {
final Object[] enumValues =
(Object[]) Array.newInstance(_mappedEnumsProperty.getBaseType(), values.length);
for (int i = 0; i < values.length; i++) {
enumValues[i] = values[i] == null ? null : values[i].asJavaEnum();
}
return enumValues;
}
}
@Override
protected void setValue(final Object[] value) {
if (MultipleMappedEnumsPropertyWidget.this.isUpdating()) {
return;
}
setMappedEnums(EnumerationValue.fromArray(value));
}
}
private final Map, DCComboBox> _mappedEnumComboBoxes;
private final ConfiguredPropertyDescriptor _mappedEnumsProperty;
private final MappedEnumsPropertyWidget _mappedEnumsPropertyWidget;
private final LazyRef> _enumMatcherRef;
/**
* Constructs the property widget
*
* @param componentBuilder
* the component builder containing the properties
* @param inputColumnsProperty
* the property representing the columns to use for setting up
* conditional lookup (InputColumn[])
* @param mappedEnumsProperty
* the property representing the mapped enums
*/
public MultipleMappedEnumsPropertyWidget(final ComponentBuilder componentBuilder,
final ConfiguredPropertyDescriptor inputColumnsProperty,
final ConfiguredPropertyDescriptor mappedEnumsProperty) {
super(componentBuilder, inputColumnsProperty);
_mappedEnumComboBoxes = new WeakHashMap<>();
_mappedEnumsProperty = mappedEnumsProperty;
_enumMatcherRef = new LazyRef>() {
@Override
protected EnumMatcher fetch() throws Throwable {
return createEnumMatcher();
}
};
_mappedEnumsPropertyWidget = new MappedEnumsPropertyWidget(componentBuilder, mappedEnumsProperty);
final InputColumn[] currentValue = getCurrentValue();
final Object value = componentBuilder.getConfiguredProperty(mappedEnumsProperty);
final EnumerationValue[] currentMappedEnums = EnumerationValue.fromArray(value);
if (currentValue != null && currentMappedEnums != null) {
final int minLength = Math.min(currentValue.length, currentMappedEnums.length);
for (int i = 0; i < minLength; i++) {
final InputColumn inputColumn = currentValue[i];
final EnumerationValue mappedEnum = currentMappedEnums[i];
createComboBox(inputColumn, mappedEnum);
}
}
if (currentValue != null) {
// Ticket #945 - this must happen AFTER creating the combo boxes
// (above)
setValue(currentValue);
}
}
public ConfiguredPropertyDescriptor getMappedEnumsProperty() {
return _mappedEnumsProperty;
}
/**
* Produces a list of available enum values for a particular input column.
*
* @param inputColumn
* @param mappedEnumsProperty
* @return
*/
protected EnumerationValue[] getEnumConstants(final InputColumn inputColumn,
final ConfiguredPropertyDescriptor mappedEnumsProperty) {
if (mappedEnumsProperty instanceof EnumerationProvider) {
return ((EnumerationProvider) mappedEnumsProperty).values();
} else {
return EnumerationValue.fromArray(mappedEnumsProperty.getBaseType().getEnumConstants());
}
}
@Override
protected boolean isAllInputColumnsSelectedIfNoValueExist() {
return false;
}
/**
* Creates a combobox for a particular input column.
*
* @param inputColumn
* @param mappedEnum
* @return
*/
protected DCComboBox createComboBox(final InputColumn inputColumn,
EnumerationValue mappedEnum) {
if (mappedEnum == null && inputColumn != null) {
mappedEnum = getSuggestedValue(inputColumn);
}
final EnumerationValue[] enumConstants = getEnumConstants(inputColumn, _mappedEnumsProperty);
final DCComboBox comboBox = new DCComboBox<>(enumConstants);
comboBox.setRenderer(getComboBoxRenderer(inputColumn, _mappedEnumComboBoxes, enumConstants));
_mappedEnumComboBoxes.put(inputColumn, comboBox);
if (mappedEnum != null) {
comboBox.setEditable(true);
comboBox.setSelectedItem(mappedEnum);
comboBox.setEditable(false);
}
comboBox.addListener(item -> _mappedEnumsPropertyWidget.fireValueChanged());
return comboBox;
}
/**
* Gets the renderer of items in the comboboxes presenting the enum values.
*
* @param enumConstants
* @param mappedEnumComboBoxes
* @param inputColumn
*
* @return
*/
protected ListCellRenderer getComboBoxRenderer(final InputColumn inputColumn,
final Map, DCComboBox> mappedEnumComboBoxes,
final EnumerationValue[] enumConstants) {
return new EnumComboBoxListRenderer();
}
/**
* Gets the suggested/pre-filled value for a particular input column.
*
* @param inputColumn
* @return
*/
protected EnumerationValue getSuggestedValue(final InputColumn inputColumn) {
final EnumMatcher matcher = _enumMatcherRef.get();
if (matcher == null) {
return null;
}
return matcher.suggestMatch(inputColumn.getName());
}
/**
* Creates an {@link EnumMatcher} for use by the suggested enum mappings in
* this widget
*
* @return
*/
protected EnumMatcher createEnumMatcher() {
if (_mappedEnumsProperty instanceof EnumerationProvider) {
return new DefaultEnumMatcher((EnumerationProvider) _mappedEnumsProperty);
} else {
@SuppressWarnings("unchecked") final Class> baseType =
(Class>) _mappedEnumsProperty.getBaseType();
final EnumerationProvider prov = EnumerationValue.providerFromEnumClass(baseType);
return new DefaultEnumMatcher(prov);
}
}
@Override
protected JComponent decorateCheckBox(final DCCheckBox> checkBox) {
final DCComboBox comboBox;
final InputColumn inputColumn = checkBox.getValue();
if (_mappedEnumComboBoxes.containsKey(inputColumn)) {
comboBox = _mappedEnumComboBoxes.get(inputColumn);
} else {
comboBox = createComboBox(inputColumn, null);
}
checkBox.addListener((item, selected) -> {
if (isBatchUpdating()) {
return;
}
comboBox.setVisible(selected);
_mappedEnumsPropertyWidget.fireValueChanged();
});
final boolean selected = checkBox.isSelected();
comboBox.setVisible(selected);
final DCPanel panel = new DCPanel();
panel.setLayout(new BorderLayout());
panel.add(checkBox, BorderLayout.CENTER);
panel.add(comboBox, BorderLayout.EAST);
return panel;
}
@Override
protected void onValuesBatchSelected(final List> values) {
final Collection> allComboBoxes = _mappedEnumComboBoxes.values();
for (final DCComboBox comboBox : allComboBoxes) {
comboBox.setVisible(false);
}
for (final InputColumn inputColumn : values) {
final DCComboBox comboBox = _mappedEnumComboBoxes.get(inputColumn);
if (comboBox != null) {
comboBox.setVisible(true);
}
}
}
public MappedEnumsPropertyWidget getMappedEnumsPropertyWidget() {
return _mappedEnumsPropertyWidget;
}
private EnumerationValue[] getMappedEnums() {
final InputColumn[] inputColumns = MultipleMappedEnumsPropertyWidget.this.getValue();
final List result = new ArrayList<>();
for (final InputColumn inputColumn : inputColumns) {
final DCComboBox comboBox = _mappedEnumComboBoxes.get(inputColumn);
if (comboBox == null || !comboBox.isVisible()) {
result.add(null);
} else {
final EnumerationValue value = comboBox.getSelectedItem();
result.add(value);
}
}
return result.toArray(new EnumerationValue[result.size()]);
}
public void setMappedEnums(final EnumerationValue[] value) {
final List> inputColumns = MultipleMappedEnumsPropertyWidget.this.getSelectedInputColumns();
for (int i = 0; i < inputColumns.size(); i++) {
final InputColumn inputColumn = inputColumns.get(i);
final EnumerationValue mappedEnum;
if (value == null) {
mappedEnum = null;
} else if (i < value.length) {
mappedEnum = value[i];
} else {
mappedEnum = null;
}
final DCComboBox comboBox = _mappedEnumComboBoxes.get(inputColumn);
if (mappedEnum != null) {
comboBox.setVisible(true);
comboBox.setEditable(true);
comboBox.setSelectedItem(mappedEnum);
comboBox.setEditable(false);
}
}
}
@Override
protected void onBatchFinished() {
super.onBatchFinished();
_mappedEnumsPropertyWidget.fireValueChanged();
}
}
