/*****************************************************************
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
****************************************************************/
package org.apache.cayenne.modeler.util;
import org.apache.cayenne.map.DbEntity;
import org.apache.cayenne.map.DbRelationship;
import org.apache.cayenne.map.ObjEntity;
import org.apache.cayenne.modeler.editor.ObjRelationshipTableModel;
import javax.swing.JLabel;
import javax.swing.JTable;
import javax.swing.text.JTextComponent;
import java.awt.Component;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.util.Collection;
import java.util.regex.Pattern;
public class DbRelationshipPathComboBoxEditor extends PathChooserComboBoxCellEditor implements FocusListener {
private static final int REL_TARGET_PATH_COLUMN = 2;
private static int enterPressedCount = 0;
private JTable table;
private String savePath;
private ObjRelationshipTableModel model;
@Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
this.model = (ObjRelationshipTableModel) table.getModel();
this.row = row;
this.table = table;
treeModel = createTreeModelForComboBox(row);
if (treeModel == null) {
return new JLabel("You should select table for this ObjectEntity");
}
initializeCombo(model, row, table);
String dbRelationshipPath = ((JTextComponent) (comboBoxPathChooser).
getEditor().getEditorComponent()).getText();
previousEmbeddedLevel = dbRelationshipPath.split(Pattern.quote(".")).length;
return comboBoxPathChooser;
}
@Override
public Object getCellEditorValue() {
return model.getValueAt(row, REL_TARGET_PATH_COLUMN);
}
@Override
protected void initializeCombo(CayenneTableModel model, int row, final JTable table) {
super.initializeCombo(model, row, table);
comboBoxPathChooser.setSelectedItem(((ObjRelationshipTableModel) model).getRelationship(row).getDbRelationshipPath());
enterPressedCount = 0;
comboBoxPathChooser.setToolTipText("To choose relationship press enter two times.To choose next relationship press dot.");
JTextComponent textEditor = (JTextComponent) (comboBoxPathChooser).
getEditor().getEditorComponent();
textEditor.addFocusListener(this);
savePath = this.model.getRelationship(row).getDbRelationshipPath();
}
@Override
protected void enterPressed(JTable table) {
String dbRelationshipPath = ((JTextComponent) (comboBoxPathChooser).
getEditor().getEditorComponent()).getText();
changeObjEntity(dbRelationshipPath);
Object currentNode = getCurrentNode(dbRelationshipPath);
String[] pathStrings = dbRelationshipPath.split(Pattern.quote("."));
String lastStringInPath = pathStrings[pathStrings.length - 1];
if (lastStringInPath.equals(ModelerUtil.getObjectName(currentNode))
&& currentNode instanceof DbRelationship) {
if (enterPressedCount == 1) {
//it is second time enter pressed.. so we will save input data
enterPressedCount = 0;
if (table.getCellEditor() != null) {
table.getCellEditor().stopCellEditing();
if (dbRelationshipPath.equals(savePath)) {
return;
}
//we need object target to save it in model
DbEntity lastEntity = ((DbRelationship) currentNode).getTargetEntity();
Collection<ObjEntity> objEntities = ((DbRelationship) currentNode).getTargetEntity().
getDataMap().getMappedEntities(lastEntity);
ObjEntity objectTarget = objEntities.isEmpty() ? null : objEntities.iterator().next();
model.getRelationship(row).setTargetEntityName(objectTarget);
model.setUpdatedValueAt(dbRelationshipPath, row, REL_TARGET_PATH_COLUMN);
model.getRelationship(row).setDbRelationshipPath(dbRelationshipPath);
model.getRelationship(row).setMapKey(null);
}
table.repaint();
}
enterPressedCount = 1;
}
}
@Override
protected void processDotEntered() {
super.processDotEntered();
}
@Override
protected void parsePathString(char lastEnteredCharacter) {
super.parsePathString(lastEnteredCharacter);
String dbRelationshipPath = ((JTextComponent) (comboBoxPathChooser).
getEditor().getEditorComponent()).getText();
changeObjEntity(dbRelationshipPath);
enterPressedCount = 0;
}
@Override
protected EntityTreeModel createTreeModelForComboBox(int relationshipIndexInTable) {
if (model.getRelationship(relationshipIndexInTable).
getSourceEntity().getDbEntity() == null) {
return null;
}
EntityTreeModel treeModel = new EntityTreeModel(model.getRelationship(relationshipIndexInTable).
getSourceEntity().getDbEntity());
treeModel.setFilter(new EntityTreeRelationshipFilter());
return treeModel;
}
@Override
protected Object getCurrentNodeToInitializeCombo(CayenneTableModel model, int row) {
return getCurrentNode(getPathToInitializeCombo(model, row));
}
@Override
protected String getPathToInitializeCombo(CayenneTableModel model, int row) {
String pathString = ((ObjRelationshipTableModel) model).getRelationship(row).getDbRelationshipPath();
if (pathString == null) {
return "";
}
String[] pathStrings = pathString.split(Pattern.quote("."));
String lastStringInPath = pathStrings[pathStrings.length - 1];
return pathString.replaceAll(lastStringInPath + '$', "");
}
private void changeObjEntity(String path){
Object currentNode = getCurrentNode(path);
if (currentNode instanceof DbEntity){
return;
}
DbEntity lastEntity = ((DbRelationship) currentNode).getTargetEntity();
Collection<ObjEntity> objEntities = ((DbRelationship) currentNode).getTargetEntity().
getDataMap().getMappedEntities(lastEntity);
ObjEntity objectTarget = objEntities.isEmpty() ? null : objEntities.iterator().next();
model.getRelationship(row).setTargetEntityName(objectTarget);
table.repaint();
}
@Override
public void focusGained(FocusEvent focusEvent) {
}
@Override
public void focusLost(FocusEvent focusEvent) {
String path = model.getRelationship(row).getDbRelationshipPath();
changeObjEntity(path);
}
}