Java tutorial
/* * JStock - Free Stock Market Software * Copyright (C) 2010 Yan Cheng CHEOK <yccheok@yahoo.com> * * This program 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 2 of the License, or * (at your option) any later version. * * 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 General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ package org.yccheok.jstock.gui; import org.yccheok.jstock.engine.Pair; import com.google.api.client.auth.oauth2.Credential; import com.google.gson.Gson; import com.google.gson.GsonBuilder; import com.google.gson.JsonDeserializationContext; import com.google.gson.JsonDeserializer; import com.google.gson.JsonElement; import com.google.gson.JsonObject; import com.google.gson.JsonParseException; import com.google.gson.reflect.TypeToken; import java.awt.Color; import java.awt.Cursor; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStreamReader; import java.text.DateFormat; import java.text.MessageFormat; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.concurrent.CancellationException; import java.util.concurrent.ExecutionException; import javax.swing.Icon; import javax.swing.JOptionPane; import javax.swing.SwingWorker; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.yccheok.jstock.file.ThreadSafeFileLock; import org.yccheok.jstock.gui.analysis.MemoryLogJDialog; import org.yccheok.jstock.internationalization.GUIBundle; import org.yccheok.jstock.internationalization.MessagesBundle; import org.yccheok.jstock.portfolio.Broker; import org.yccheok.jstock.portfolio.BrokingFirm; import org.yccheok.jstock.portfolio.ClearingFee; import org.yccheok.jstock.portfolio.SimpleBroker; import org.yccheok.jstock.portfolio.SimpleClearingFee; import org.yccheok.jstock.portfolio.SimpleStampDuty; import org.yccheok.jstock.portfolio.StampDuty; /** * * @author yccheok */ public class LoadFromCloudJDialog extends javax.swing.JDialog { /** Creates new form LoadFromCloudJDialog */ public LoadFromCloudJDialog(java.awt.Frame parent, boolean modal, Pair<Credential, String> credentialEx, boolean credentialFromDisk) { super(parent, modal); initComponents(); // Hackish way to make Mac works. pack(); setSize(new java.awt.Dimension(420, 243)); setLocationRelativeTo(null); this.credentialEx = credentialEx; this.jLabel1.setText(credentialEx.second); this.jLabel4.setVisible(false); this.jLabel5.setVisible(false); if (false == credentialFromDisk) { jButton1.doClick(); } } /** This method is called from within the constructor to * initialize the form. * WARNING: Do NOT modify this code. The content of this method is * always regenerated by the Form Editor. */ @SuppressWarnings("unchecked") // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents private void initComponents() { jPanel6 = new javax.swing.JPanel(); jPanel5 = new javax.swing.JPanel(); jXHeader1 = new org.jdesktop.swingx.JXHeader(); jPanel3 = new javax.swing.JPanel(); jButton1 = new javax.swing.JButton(); jButton2 = new javax.swing.JButton(); jPanel1 = new javax.swing.JPanel(); jPanel4 = new javax.swing.JPanel(); jLabel3 = new javax.swing.JLabel(); jLabel4 = new javax.swing.JLabel(); jLabel5 = new javax.swing.JLabel(); jPanel2 = new javax.swing.JPanel(); jLabel1 = new javax.swing.JLabel(); jButton3 = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE); java.util.ResourceBundle bundle = java.util.ResourceBundle.getBundle("org/yccheok/jstock/data/gui"); // NOI18N setTitle(bundle.getString("LoadFromCloudJDialog_Title")); // NOI18N setResizable(false); addWindowListener(new java.awt.event.WindowAdapter() { public void windowClosed(java.awt.event.WindowEvent evt) { formWindowClosed(evt); } }); getContentPane().setLayout(new java.awt.BorderLayout(5, 5)); getContentPane().add(jPanel6, java.awt.BorderLayout.WEST); getContentPane().add(jPanel5, java.awt.BorderLayout.EAST); jXHeader1.setDescription(bundle.getString("LoadFromCloudJDialog_Description")); // NOI18N jXHeader1.setIcon( new javax.swing.ImageIcon(getClass().getResource("/images/32x32/download_from_cloud.png"))); // NOI18N jXHeader1.setTitle(bundle.getString("LoadFromCloudJDialog_Title")); // NOI18N getContentPane().add(jXHeader1, java.awt.BorderLayout.NORTH); jButton1.setIcon(new javax.swing.ImageIcon(getClass().getResource("/images/16x16/apply.png"))); // NOI18N jButton1.setText(bundle.getString("LoadFromCloudJDialog_OK")); // NOI18N jButton1.setOpaque(false); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jPanel3.add(jButton1); jButton2.setIcon(new javax.swing.ImageIcon(getClass().getResource("/images/16x16/button_cancel.png"))); // NOI18N jButton2.setText(bundle.getString("LoadFromCloudJDialog_Cancel")); // NOI18N jButton2.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton2ActionPerformed(evt); } }); jPanel3.add(jButton2); getContentPane().add(jPanel3, java.awt.BorderLayout.PAGE_END); jPanel1.setLayout(new java.awt.BorderLayout()); jPanel4.setLayout(new java.awt.FlowLayout(java.awt.FlowLayout.LEFT)); jLabel3.setForeground(new java.awt.Color(255, 0, 0)); jLabel3.setText(bundle.getString("LoadFromCloudJDialog_WarningAllYourDataWillBeOverwriteByCloudData")); // NOI18N jPanel4.add(jLabel3); jLabel4.setIcon(new javax.swing.ImageIcon(getClass().getResource("/images/16x16/spinner.gif"))); // NOI18N jPanel4.add(jLabel4); jLabel5.setText(bundle.getString("WizardDownloadlIndicatorJPanel_ViewLog")); // NOI18N jLabel5.addMouseListener(new java.awt.event.MouseAdapter() { public void mouseClicked(java.awt.event.MouseEvent evt) { jLabel5MouseClicked(evt); } public void mouseEntered(java.awt.event.MouseEvent evt) { jLabel5MouseEntered(evt); } public void mouseExited(java.awt.event.MouseEvent evt) { jLabel5MouseExited(evt); } }); jPanel4.add(jLabel5); jPanel1.add(jPanel4, java.awt.BorderLayout.SOUTH); jPanel2.setBorder(javax.swing.BorderFactory .createTitledBorder(bundle.getString("LoadFromCloudJDialog_GoogleAccount"))); // NOI18N jLabel1.setBackground(new java.awt.Color(140, 196, 116)); jLabel1.setFont(jLabel1.getFont().deriveFont(jLabel1.getFont().getStyle() | java.awt.Font.BOLD, jLabel1.getFont().getSize() + 1)); jLabel1.setForeground(new java.awt.Color(255, 255, 255)); jLabel1.setHorizontalAlignment(javax.swing.SwingConstants.CENTER); jLabel1.setText("username@email.com"); jLabel1.setBorder(javax.swing.BorderFactory.createEmptyBorder(5, 5, 5, 5)); jLabel1.setOpaque(true); jPanel2.add(jLabel1); jButton3.setText(bundle.getString("LoadFromCloudJDialog_SignOut")); // NOI18N jButton3.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton3ActionPerformed(evt); } }); jPanel2.add(jButton3); jPanel1.add(jPanel2, java.awt.BorderLayout.NORTH); getContentPane().add(jPanel1, java.awt.BorderLayout.CENTER); setSize(new java.awt.Dimension(420, 243)); setLocationRelativeTo(null); }// </editor-fold>//GEN-END:initComponents private void formWindowClosed(java.awt.event.WindowEvent evt) {//GEN-FIRST:event_formWindowClosed cancel(); }//GEN-LAST:event_formWindowClosed private void cancel() { if (loadFromCloudTask != null) { loadFromCloudTask.cancel(true); loadFromCloudTask = null; } } private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed this.setVisible(false); this.dispose(); }//GEN-LAST:event_jButton2ActionPerformed private void jLabel5MouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jLabel5MouseClicked MemoryLogJDialog memoryLogJDialog = new MemoryLogJDialog(JStock.instance(), true); memoryLogJDialog.setLocationRelativeTo(this); memoryLogJDialog.setLog(memoryLog); memoryLogJDialog.setVisible(true); }//GEN-LAST:event_jLabel5MouseClicked private void jLabel5MouseEntered(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jLabel5MouseEntered this.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR)); }//GEN-LAST:event_jLabel5MouseEntered private void jLabel5MouseExited(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jLabel5MouseExited this.setCursor(Cursor.getDefaultCursor()); }//GEN-LAST:event_jLabel5MouseExited private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed this.jButton1.setEnabled(false); this.jButton3.setEnabled(false); // Update GUI immediately. So that user will not feel our app is slow. jLabel3.setText(GUIBundle.getString("LoadFromCloudJDialog_LoadingFromCloud...")); jLabel4.setIcon(Icons.BUSY); jLabel3.setVisible(true); jLabel4.setVisible(true); this.loadFromCloudTask = this.getLoadFromCloudTask(); this.loadFromCloudTask.execute(); }//GEN-LAST:event_jButton1ActionPerformed private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton3ActionPerformed org.yccheok.jstock.google.Utils.logoutDrive(); this.setVisible(false); this.dispose(); JStock.instance().loadFromCloud(); }//GEN-LAST:event_jButton3ActionPerformed private static class Status { public final String message; public final Icon icon; private Status(String message, Icon icon) { if (message == null || icon == null) { throw new IllegalArgumentException("Method arguments cannot be null"); } this.message = message; this.icon = icon; } public static Status newInstance(String message, Icon icon) { return new Status(message, icon); } } private SwingWorker<JStockOptions, Status> getLoadFromCloudTask() { SwingWorker<JStockOptions, Status> worker = new SwingWorker<JStockOptions, Status>() { @Override protected void done() { JStockOptions result = null; // Some developers suggest to catch this exception, instead of // checking on isCancelled. As I am not confident by merely // isCancelled check can prevent CancellationException (What // if cancellation is happen just after isCancelled check?), // I will apply both techniques. if (this.isCancelled() == false) { try { result = this.get(); } catch (InterruptedException ex) { log.error(null, ex); } catch (ExecutionException ex) { log.error(null, ex); } catch (CancellationException ex) { log.error(null, ex); } } jButton1.setEnabled(true); jButton3.setEnabled(true); if (result != null) { JStock.instance().reloadAfterDownloadFromCloud(result); JOptionPane.showMessageDialog(LoadFromCloudJDialog.this, GUIBundle.getString("LoadFromCloudJDialog_Success")); setVisible(false); dispose(); } } @Override protected void process(java.util.List<Status> statuses) { for (Status status : statuses) { writeToMemoryLog(status.message); jLabel3.setText(status.message); jLabel4.setIcon(status.icon); jLabel3.setVisible(true); jLabel4.setVisible(true); if (status.icon == Icons.ERROR || status.icon == Icons.WARNING) { jLabel3.setForeground(Color.RED); jLabel5.setVisible(true); } else { jLabel3.setForeground(Color.BLUE); jLabel5.setVisible(false); } } } // Unlike Android, we don't mutate old JStockOptions first. Instead, // we return JStockOptions to UI thread. This allow JStock.java make // look n feel decision, based on old JStockOptions. @Override protected JStockOptions doInBackground() { if (isCancelled()) { return null; } memoryLog.clear(); publish(Status.newInstance(GUIBundle.getString("LoadFromCloudJDialog_LoadingFromCloud..."), Icons.BUSY)); Utils.CloudFile cloudFile = Utils.loadFromGoogleDrive(credentialEx.first); if (cloudFile == null) { // Perhaps we should load from legacy cloud server, and help // user to perform migration to Google Doc server. cloudFile = Utils.loadFromLegacyGoogleDrive(credentialEx.first); if (cloudFile == null) { publish(Status.newInstance(GUIBundle.getString("LoadFromCloudJDialog_LoadingFromCloudFail"), Icons.ERROR)); return null; } else { Utils.saveToGoogleDrive(credentialEx.first, cloudFile.file); } } /* Check for checksum. */ if (cloudFile.checksum != org.yccheok.jstock.analysis.Utils.getChecksum(cloudFile.file)) { publish(Status.newInstance(GUIBundle.getString("LoadFromCloudJDialog_CheckingCheckSumFail"), Icons.ERROR)); return null; } /* Check for date. */ final long today = new Date().getTime(); final long milli_seconds_in_a_day = 1000 * 24 * 60 * 60; if ((today / milli_seconds_in_a_day) != (cloudFile.date / milli_seconds_in_a_day)) { DateFormat dateFormat = DateFormat.getDateInstance(); final String message = MessageFormat.format( MessagesBundle .getString("question_message_overwrite_your_data_by_cloud_data_at_template"), dateFormat.format(cloudFile.date)); final int result = JOptionPane.showConfirmDialog(LoadFromCloudJDialog.this, message, MessagesBundle.getString("question_title_overwrite_your_data_by_cloud_data_at"), JOptionPane.YES_NO_OPTION); if (result != JOptionPane.YES_OPTION) { publish(Status.newInstance( GUIBundle.getString("LoadFromCloudJDialog_UserRefuseToOverwriteWithOldData"), Icons.ERROR)); return null; } } /* Check for version. */ if (Utils.isCloudFileCompatible(cloudFile.version) == false) { final String message = MessageFormat.format( GUIBundle.getString("LoadFromCloudJDialog_VersionNotCompatible_template"), cloudFile.version); publish(Status.newInstance(message, Icons.ERROR)); return null; } // Place isCancelled check after time consuming operation. // Not the best way, but perhaps the easiest way to cancel // the operation. if (isCancelled()) { return null; } publish(Status.newInstance(GUIBundle.getString("LoadFromCloudJDialog_ExtractingData..."), Icons.BUSY)); boolean status = Utils.extractZipFile(cloudFile.file, true); // Place isCancelled check after time consuming operation. // Not the best way, but perhaps the easiest way to cancel // the operation. if (isCancelled()) { return null; } if (false == status) { publish(Status.newInstance(GUIBundle.getString("LoadFromCloudJDialog_ExtractingDataFail"), Icons.ERROR)); return null; } final File f = new File(org.yccheok.jstock.gui.Utils.getUserDataDirectory() + "config" + File.separator + "options.xml"); final JStockOptions jStockOptions = Utils.fromXML(JStockOptions.class, f); if (jStockOptions == null) { publish(Status.newInstance(GUIBundle.getString("LoadFromCloudJDialog_ExtractingDataFail"), Icons.ERROR)); return null; } // json from Android might contain latest configuration. loadBrokingFirmsFromJson(jStockOptions); publish(Status.newInstance(GUIBundle.getString("LoadFromCloudJDialog_Success"), Icons.OK)); return jStockOptions; } }; return worker; } private static class SimpleBrokerDeserializer implements JsonDeserializer<SimpleBroker> { @Override public SimpleBroker deserialize(JsonElement json, java.lang.reflect.Type typeOfT, JsonDeserializationContext context) throws JsonParseException { final JsonObject jsonObject = json.getAsJsonObject(); final double maximumRate = jsonObject.get("maximumRate").getAsDouble(); final double minimumRate = jsonObject.get("minimumRate").getAsDouble(); final double rate = jsonObject.get("rate").getAsDouble(); return new SimpleBroker(maximumRate, minimumRate, rate); } } private static class SimpleClearingFeeDeserializer implements JsonDeserializer<SimpleClearingFee> { @Override public SimpleClearingFee deserialize(JsonElement json, java.lang.reflect.Type typeOfT, JsonDeserializationContext context) throws JsonParseException { final JsonObject jsonObject = json.getAsJsonObject(); final double maximumRate = jsonObject.get("maximumRate").getAsDouble(); final double minimumRate = jsonObject.get("minimumRate").getAsDouble(); final double rate = jsonObject.get("rate").getAsDouble(); return new SimpleClearingFee(maximumRate, minimumRate, rate); } } private static class SimpleStampDutyDeserializer implements JsonDeserializer<SimpleStampDuty> { @Override public SimpleStampDuty deserialize(JsonElement json, java.lang.reflect.Type typeOfT, JsonDeserializationContext context) throws JsonParseException { final JsonObject jsonObject = json.getAsJsonObject(); final double maximumRate = jsonObject.get("maximumRate").getAsDouble(); final double fraction = jsonObject.get("fraction").getAsDouble(); final double rate = jsonObject.get("rate").getAsDouble(); return new SimpleStampDuty(maximumRate, fraction, rate); } } private boolean loadBrokingFirmsFromJson(JStockOptions jStockOptions) { File brokingFirmsFile = new File(org.yccheok.jstock.gui.Utils.getUserDataDirectory() + "android" + File.separator + "brokingfirms.json"); if (false == brokingFirmsFile.isFile()) { return false; } List<BrokingFirm> brokingFirms = null; GsonBuilder builder = new GsonBuilder(); Gson gson = builder.registerTypeAdapter(Broker.class, new SimpleBrokerDeserializer()) .registerTypeAdapter(ClearingFee.class, new SimpleClearingFeeDeserializer()) .registerTypeAdapter(StampDuty.class, new SimpleStampDutyDeserializer()).create(); final ThreadSafeFileLock.Lock lock = ThreadSafeFileLock.getLock(brokingFirmsFile); if (lock == null) { return false; } // http://stackoverflow.com/questions/10868423/lock-lock-before-try ThreadSafeFileLock.lockRead(lock); try { BufferedReader reader = new BufferedReader( new InputStreamReader(new FileInputStream(brokingFirmsFile), "UTF-8")); try { brokingFirms = gson.fromJson(reader, new TypeToken<List<BrokingFirm>>() { }.getType()); if (brokingFirms == null) { return false; } } finally { reader.close(); } } catch (IOException ex) { log.error(null, ex); } catch (com.google.gson.JsonSyntaxException ex) { log.error(null, ex); } catch (Exception ex) { log.error(null, ex); } finally { ThreadSafeFileLock.unlockRead(lock); ThreadSafeFileLock.releaseLock(lock); } if (brokingFirms == null) { return false; } jStockOptions.clearBrokingFirms(); for (BrokingFirm brokingFirm : brokingFirms) { jStockOptions.addBrokingFirm(brokingFirm); } return true; } private void writeToMemoryLog(String message) { // http://www.leepoint.net/notes-java/io/10file/sys-indep-newline.html // public static String newline = System.getProperty("line.separator"); // When NOT to use the system independent newline characters // JTextArea lines should be separated by a single '\n' character, not the sequence that is used for file line separators in the operating system. // Console output (eg, System.out.println()), works fine with '\n', even on Windows. final DateFormat dateFormat = new SimpleDateFormat("MMM dd, yyyy hh:mm:ss a"); final String s = dateFormat.format(new Date()) + "\n" + message; this.memoryLog.add(s); } private final Pair<Credential, String> credentialEx; private volatile SwingWorker<JStockOptions, Status> loadFromCloudTask = null; private final List<String> memoryLog = new ArrayList<String>(); private static final Log log = LogFactory.getLog(LoadFromCloudJDialog.class); // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JButton jButton1; private javax.swing.JButton jButton2; private javax.swing.JButton jButton3; private javax.swing.JLabel jLabel1; private javax.swing.JLabel jLabel3; private javax.swing.JLabel jLabel4; private javax.swing.JLabel jLabel5; private javax.swing.JPanel jPanel1; private javax.swing.JPanel jPanel2; private javax.swing.JPanel jPanel3; private javax.swing.JPanel jPanel4; private javax.swing.JPanel jPanel5; private javax.swing.JPanel jPanel6; private org.jdesktop.swingx.JXHeader jXHeader1; // End of variables declaration//GEN-END:variables }