Java tutorial
/* * Copyright (c) 2008, SQL Power Group Inc. * * This file is part of DQguru * * DQguru is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * DQguru 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package ca.sqlpower.matchmaker.swingui.munge; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import javax.swing.JCheckBox; import javax.swing.JComboBox; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JTextField; import javax.swing.event.DocumentEvent; import javax.swing.event.DocumentListener; import ca.sqlpower.matchmaker.MatchMakerSession; import ca.sqlpower.matchmaker.munge.MungeStep; import ca.sqlpower.matchmaker.munge.StringToDateMungeStep; import ca.sqlpower.validation.Status; import ca.sqlpower.validation.swingui.FormValidationHandler; import com.jgoodies.forms.layout.CellConstraints; import com.jgoodies.forms.layout.FormLayout; /** * This is the component for a string to date munge step. It has four options, * combo boxes for choosing from lists of default date and time format patterns, * a text field for entering a custom format pattern, combo box for choosing * the output format, and a checkbox that decides whether to ignore errors. * Choosing from either lists has a side effect of updating the format pattern * to the concatenation of the date and time portions. */ public class StringToDateMungeComponent extends AbstractMungeComponent { private JTextField sample; private JTextField inputFormat; private JComboBox dateFormat; private JComboBox timeFormat; private JComboBox outputFormat; private JCheckBox ignoreError; private static final Date SAMPLE_DATE = Calendar.getInstance().getTime(); public StringToDateMungeComponent(MungeStep ms, FormValidationHandler handler, MatchMakerSession session) { super(ms, handler, session); } @Override protected JPanel buildUI() { JPanel content = new JPanel(new FormLayout("4dlu,pref,4dlu,pref,4dlu", "4dlu,pref,4dlu,pref,4dlu,pref,4dlu,pref,4dlu,pref,4dlu,pref,4dlu")); final StringToDateMungeStep temp = (StringToDateMungeStep) getStep(); /** * Gets the lists of formats from the step and converts them into arrays * so that it's easier to make the combo boxes. */ final String[] dateFormats = StringToDateMungeStep.DATE_FORMATS.toArray(new String[] {}); final String[] timeFormats = StringToDateMungeStep.TIME_FORMATS.toArray(new String[] {}); final String[] outputFormats = StringToDateMungeStep.OUTPUT_FORMATS.toArray(new String[] {}); SimpleDateFormat sdf = new SimpleDateFormat(temp.getInputFormat()); sample = new JTextField(sdf.format(StringToDateMungeComponent.SAMPLE_DATE)); sample.setEditable(false); ignoreError = new JCheckBox("Continue on Error"); ignoreError.setSelected(((StringToDateMungeStep) getStep()).isIgnoreError()); ignoreError.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { StringToDateMungeStep temp = (StringToDateMungeStep) getStep(); temp.setIgnoreError(ignoreError.isSelected()); } }); dateFormat = new JComboBox(dateFormats); dateFormat.setSelectedItem(temp.getDateFormat()); dateFormat.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { temp.setDateFormat((String) e.getItem()); inputFormat.setText(temp.getInputFormat()); } }); timeFormat = new JComboBox(timeFormats); timeFormat.setSelectedItem(temp.getTimeFormat()); timeFormat.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { temp.setTimeFormat((String) e.getItem()); inputFormat.setText(temp.getInputFormat()); } }); inputFormat = new JTextField(temp.getInputFormat()); inputFormat.getDocument().addDocumentListener(new DocumentListener() { public void insertUpdate(DocumentEvent e) { doStuff(); } public void removeUpdate(DocumentEvent e) { doStuff(); } public void changedUpdate(DocumentEvent e) { doStuff(); } private void doStuff() { temp.setInputFormat(inputFormat.getText()); if (getHandler().getWorstValidationStatus().getStatus() == Status.OK) { SimpleDateFormat sdf = new SimpleDateFormat(temp.getInputFormat()); sample.setText(sdf.format(StringToDateMungeComponent.SAMPLE_DATE)); } } }); getHandler().addValidateObject(inputFormat, new DateFormatPatternValidator()); outputFormat = new JComboBox(outputFormats); outputFormat.setSelectedItem(temp.getOutputFormat()); outputFormat.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { temp.setOutputFormat((String) e.getItem()); } }); CellConstraints cc = new CellConstraints(); int row = 2; content.add(new JLabel("Example: "), cc.xy(2, row)); content.add(sample, cc.xy(4, row)); row += 2; content.add(new JLabel("Date Format: "), cc.xy(2, row)); content.add(dateFormat, cc.xy(4, row)); row += 2; content.add(new JLabel("Time Format: "), cc.xy(2, row)); content.add(timeFormat, cc.xy(4, row)); row += 2; content.add(new JLabel("Input Format: "), cc.xy(2, row)); content.add(inputFormat, cc.xy(4, row)); row += 2; content.add(new JLabel("Output Format: "), cc.xy(2, row)); content.add(outputFormat, cc.xy(4, row)); row += 2; content.add(ignoreError, cc.xyw(2, row, 3, "c,c")); return content; } }