/* ============================================================
* JRobin : Pure java implementation of RRDTool's functionality
* ============================================================
*
* Project Info: http://www.jrobin.org
* Project Lead: Sasa Markovic (saxon@jrobin.org);
*
* (C) Copyright 2003, by Sasa Markovic.
*
* Developers: Sasa Markovic (saxon@jrobin.org)
*
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*/
package org.jrobin.inspector;
import org.jrobin.core.DsDef;
import org.jrobin.core.RrdException;
import javax.swing.*;
import java.awt.*;
import java.awt.event.WindowEvent;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
class EditDatasourceDialog extends JDialog {
private static final long serialVersionUID = 1L;
private static final int FIELD_SIZE = 20;
private static final String TITLE_NEW = "New datasource";
private static final String TITLE_EDIT = "Edit datasource";
private JLabel nameLabel = new JLabel("Datasource name: ");
private JLabel typeLabel = new JLabel("Datasource type: ");
private JLabel heartbeatLabel = new JLabel("Heartbeat: ");
private JLabel minLabel = new JLabel("Min value: ");
private JLabel maxLabel = new JLabel("Max value: ");
private JTextField nameField = new JTextField(FIELD_SIZE);
private JComboBox typeCombo = new JComboBox();
private JTextField heartbeatField = new JTextField(FIELD_SIZE);
private JTextField minField = new JTextField(FIELD_SIZE);
private JTextField maxField = new JTextField(FIELD_SIZE);
private JButton okButton = new JButton("OK");
private JButton cancelButton = new JButton("Cancel");
private DsDef dsDef;
EditDatasourceDialog(Frame parent, DsDef dsDef) {
super(parent, dsDef == null ? TITLE_NEW : TITLE_EDIT, true);
constructUI(dsDef);
pack();
Util.centerOnScreen(this);
setVisible(true);
}
private void constructUI(DsDef dsDef) {
// fill controls
String[] types = DsDef.DS_TYPES;
for (String type : types) {
typeCombo.addItem(type);
}
typeCombo.setSelectedIndex(0);
if (dsDef == null) {
// NEW
minField.setText("U");
maxField.setText("U");
}
else {
// EDIT
nameField.setText(dsDef.getDsName());
nameField.setEnabled(false);
typeCombo.setSelectedItem(dsDef.getDsType());
typeCombo.setEnabled(false);
heartbeatField.setText("" + dsDef.getHeartbeat());
minField.setText("" + dsDef.getMinValue());
maxField.setText("" + dsDef.getMaxValue());
}
// layout
JPanel content = (JPanel) getContentPane();
GridBagLayout layout = new GridBagLayout();
content.setLayout(layout);
GridBagConstraints gbc = new GridBagConstraints();
gbc.insets = new Insets(3, 3, 3, 3);
gbc.gridx = 0;
gbc.gridy = 0;
gbc.anchor = GridBagConstraints.EAST;
layout.setConstraints(nameLabel, gbc);
content.add(nameLabel);
gbc.gridy = 1;
layout.setConstraints(typeLabel, gbc);
content.add(typeLabel);
gbc.gridy = 2;
layout.setConstraints(heartbeatLabel, gbc);
content.add(heartbeatLabel);
gbc.gridy = 3;
layout.setConstraints(minLabel, gbc);
content.add(minLabel);
gbc.gridy = 4;
layout.setConstraints(maxLabel, gbc);
content.add(maxLabel);
gbc.gridy = 5;
layout.setConstraints(okButton, gbc);
okButton.setPreferredSize(cancelButton.getPreferredSize());
content.add(okButton);
gbc.gridx = 1;
gbc.gridy = 0;
gbc.anchor = GridBagConstraints.WEST;
layout.setConstraints(nameField, gbc);
content.add(nameField);
gbc.gridy = 1;
layout.setConstraints(typeCombo, gbc);
content.add(typeCombo);
gbc.gridy = 2;
layout.setConstraints(heartbeatField, gbc);
content.add(heartbeatField);
gbc.gridy = 3;
layout.setConstraints(minField, gbc);
content.add(minField);
gbc.gridy = 4;
layout.setConstraints(maxField, gbc);
content.add(maxField);
gbc.gridy = 5;
layout.setConstraints(cancelButton, gbc);
content.add(cancelButton);
getRootPane().setDefaultButton(okButton);
// actions
okButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
ok();
}
});
cancelButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
cancel();
}
});
setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
}
private void ok() {
dsDef = createDsDef();
if (dsDef != null) {
close();
}
}
private void close() {
dispatchEvent(new WindowEvent(this, WindowEvent.WINDOW_CLOSING));
}
private void cancel() {
close();
}
private DsDef createDsDef() {
String name = nameField.getText();
if (name == null || name.length() < 1 || name.length() > 20) {
Util.error(this, "Datasource name must be a non-empty string up to 20 chars long");
return null;
}
String type = (String) typeCombo.getSelectedItem();
long heartbeat;
try {
heartbeat = Long.parseLong(heartbeatField.getText());
if (heartbeat <= 0) {
throw new NumberFormatException();
}
}
catch (NumberFormatException nfe) {
Util.error(this, "Heartbeat must be a positive integer number");
return null;
}
double min = Double.NaN, max = Double.NaN;
try {
min = Double.parseDouble(minField.getText());
}
catch (NumberFormatException nfe) {
// NOP, leave NaN
}
try {
max = Double.parseDouble(maxField.getText());
}
catch (NumberFormatException nfe) {
// NOP, leave NaN
}
if (!Double.isNaN(min) && !Double.isNaN(max) && min >= max) {
Util.error(this, "Min value must be less than max value");
return null;
}
try {
return new DsDef(name, type, heartbeat, min, max);
}
catch (RrdException e) {
// should not be hear ever!
Util.error(this, e);
return null;
}
}
DsDef getDsDef() {
return dsDef;
}
}