Java tutorial
/* * Funambol is a mobile platform developed by Funambol, Inc. * Copyright (C) 2008 Funambol, Inc. * * This program is free software; you can redistribute it and/or modify it under * the terms of the GNU Affero General Public License version 3 as published by * the Free Software Foundation with the addition of the following permission * added to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED * WORK IN WHICH THE COPYRIGHT IS OWNED BY FUNAMBOL, FUNAMBOL DISCLAIMS THE * WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS. * * 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 Affero General Public License * along with this program; if not, see http://www.gnu.org/licenses or write to * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, * MA 02110-1301 USA. * * You can contact Funambol, Inc. headquarters at 643 Bair Island Road, Suite * 305, Redwood City, CA 94063, USA, or at email address info@funambol.com. * * The interactive user interfaces in modified source and object code versions * of this program must display Appropriate Legal Notices, as required under * Section 5 of the GNU Affero General Public License version 3. * * In accordance with Section 7(b) of the GNU Affero General Public License * version 3, these Appropriate Legal Notices must retain the display of the * "Powered by Funambol" logo. If the display of the logo is not reasonably * feasible for technical reasons, the Appropriate Legal Notices must display * the words "Powered by Funambol". */ package com.funambol.exchange.admin; import java.io.Serializable; import java.awt.Rectangle; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JComboBox; import javax.swing.JLabel; import javax.swing.JTextField; import javax.swing.SwingConstants; import javax.swing.border.TitledBorder; import org.apache.commons.lang.StringUtils; import com.funambol.admin.AdminException; import com.funambol.admin.mo.SyncSourceManagementObject; import com.funambol.admin.ui.SourceManagementPanel; import com.funambol.exchange.engine.source.ExchangeCalendarSyncSource; import com.funambol.exchange.engine.source.ExchangeContactSyncSource; import com.funambol.exchange.engine.source.ExchangeNoteSyncSource; import com.funambol.exchange.engine.source.ExchangeSyncSource; import com.funambol.exchange.engine.source.ExchangeTaskSyncSource; import com.funambol.framework.engine.source.SyncSource; import java.awt.Dimension; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.util.ArrayList; import java.util.List; import javax.swing.JCheckBox; /** * This class implements the configuration panel for an ExchangeSyncSource * * @version $Id$ */ public abstract class ExchangeSyncSourceConfigPanel extends SourceManagementPanel implements Serializable { // --------------------------------------------------------------- Constants protected static final String PANEL_NAME = "Edit Exchange SyncSource"; public static final String NAME_ALLOWED_CHARS = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890-_."; // All possible Exchange SyncSource's public static final Class[] SYNCSOURCE = { ExchangeContactSyncSource.class, ExchangeCalendarSyncSource.class, ExchangeTaskSyncSource.class, ExchangeNoteSyncSource.class }; // ------------------------------------------------------------ Private data /** Label for the panel's name */ protected JLabel panelName = new JLabel(); /** Border to pose the panel's title in evidence */ protected TitledBorder titledBorder; protected JLabel nameLabel = new JLabel(); protected JTextField nameValue = new JTextField(); protected JLabel typeLabel = new JLabel(); protected JComboBox typeCombo = new JComboBox(); protected JLabel sourceUriLabel = new JLabel(); protected JTextField sourceUriValue = new JTextField(); protected JCheckBox encryption = new JCheckBox(); protected JCheckBox encoding = new JCheckBox(); protected JButton confirmButton = new JButton(); // ------------------------------------------------------------ Constructors /** * Creates a new instance of ExchangeSyncSourceConfigPanel. */ public ExchangeSyncSourceConfigPanel() { init(); } /** * Updates the panel form with values from the linked SyncSource. */ public void updateForm() { if (!(getSyncSource() instanceof ExchangeSyncSource)) { notifyError(new AdminException( "This is not a ExchangeSyncSource! " + "Unable to process SyncSource values.")); return; } ExchangeSyncSource syncSource = (ExchangeSyncSource) getSyncSource(); if (getState() == STATE_INSERT) { confirmButton.setText("Add"); } else if (getState() == STATE_UPDATE) { confirmButton.setText("Save"); } sourceUriValue.setText(syncSource.getSourceURI()); nameValue.setText(syncSource.getName()); if (syncSource.getSourceURI() != null) { sourceUriValue.setEditable(false); } // Preparing to populate the combo box... typeCombo.removeAllItems(); List types = getTypes(); if (types == null) { types = new ArrayList(); } for (int i = 0; i < types.size(); i++) { typeCombo.addItem(types.get(i)); } String typeToSelect = getTypeToSelect(syncSource); if (typeToSelect != null) { typeCombo.setSelectedItem(typeToSelect); } else { typeCombo.setSelectedIndex(0); } SyncSourceManagementObject mo = (SyncSourceManagementObject) getManagementObject(); String transformationsRequired = mo.getTransformationsRequired(); if (transformationsRequired == null) { encryption.setSelected(false); encoding.setSelected(false); } else { if ("des;b64".equals(transformationsRequired)) { encryption.setSelected(true); encoding.setSelected(true); } else if ("b64".equals(transformationsRequired)) { encryption.setSelected(false); encoding.setSelected(true); } else { encryption.setSelected(false); encoding.setSelected(false); } } // In any case, force the encoding for SIF data if (isSIFSelected()) { encoding.setSelected(true); encoding.setEnabled(false); } } /** * Set preferredSize of the panel * @return preferredSize of the panel */ @Override public Dimension getPreferredSize() { return new Dimension(525, 280); } // --------------------------------------------------------- Private methods /** * Checks if the values provided by the user are all valid. If they are, the * method ends regularly. * * @throws IllegalArgumentException if name, uri, type or directory are empty * (null or zero-length) */ protected void validateValues() throws IllegalArgumentException { String value = null; value = nameValue.getText(); if (StringUtils.isEmpty(value)) { throw new IllegalArgumentException( "Field 'Name' cannot be empty. " + "Please provide a SyncSource name."); } if (!StringUtils.containsOnly(value, NAME_ALLOWED_CHARS.toCharArray())) { throw new IllegalArgumentException( "Only the following characters are allowed for field 'Name':" + "\n" + NAME_ALLOWED_CHARS); } value = (String) typeCombo.getSelectedItem(); if (StringUtils.isEmpty(value)) { throw new IllegalArgumentException( "Field 'Type' cannot be empty. " + "Please provide a SyncSource type."); } value = sourceUriValue.getText(); if (StringUtils.isEmpty(value)) { throw new IllegalArgumentException( "Field 'Source URI' cannot be empty. " + "Please provide a SyncSource URI."); } } /** * Sets the SyncSource's properties with the values provided by the user. */ protected void getValues() { ExchangeSyncSource syncSource = (ExchangeSyncSource) getSyncSource(); syncSource.setSourceURI(sourceUriValue.getText().trim()); syncSource.setName(nameValue.getText().trim()); String transformationsRequired = null; if (encryption.isSelected()) { transformationsRequired = "des;b64"; } else if (encoding.isSelected()) { transformationsRequired = "b64"; } SyncSourceManagementObject mo = (SyncSourceManagementObject) getManagementObject(); mo.setTransformationsRequired(transformationsRequired); setSyncSourceInfo(syncSource, (String) typeCombo.getSelectedItem()); } /** * Checks whether a SIF content type is selected. * * @return true if in the combo box the selected string starts with "SIF" */ protected boolean isSIFSelected() { if (typeCombo.getItemCount() == 0) { return false; } return ((String) typeCombo.getSelectedItem()).startsWith("SIF"); } /** * Adds extra components just above the confirm button. * * @param x horizontal position * @param y vertical position * @param xGap standard horizontal gap * @param yGap standard vertical gap * @return the new vertical position */ protected int addExtraComponents(int x, int y, int xGap, int yGap) { // Nothing return y; } /** * Returns the panel name * @return the panel name */ protected String getPanelName() { return PANEL_NAME; } /** * Returns the available types * @return the available types; */ protected abstract List getTypes(); /** * Returns the type to select based on the given syncsource * @return the type to select based on the given syncsource */ protected abstract String getTypeToSelect(SyncSource syncSource); /** * Sets the source info of the given syncsource based on the given selectedType * @param syncSource the source * @param selectedType the selected type */ protected abstract void setSyncSourceInfo(SyncSource syncSource, String selectedType); // --------------------------------------------------------- Private methods /** * Creates the panel's components and layout. * @todo adjust layout */ private void init() { // set layout this.setLayout(null); // set properties of label, position and border // referred to the title of the panel titledBorder = new TitledBorder(""); panelName.setFont(titlePanelFont); panelName.setText(getPanelName()); panelName.setBounds(new Rectangle(14, 5, 316, 28)); panelName.setAlignmentX(SwingConstants.CENTER); panelName.setBorder(titledBorder); final int LABEL_X = 14; final int VALUE_X = 170; int y = 60; final int GAP_X = 150; final int GAP_Y = 30; sourceUriLabel.setText("Source URI: "); sourceUriLabel.setFont(defaultFont); sourceUriLabel.setBounds(new Rectangle(LABEL_X, y, 150, 18)); sourceUriValue.setFont(defaultFont); sourceUriValue.setBounds(new Rectangle(VALUE_X, y, 350, 18)); y += GAP_Y; // New line nameLabel.setText("Name: "); nameLabel.setFont(defaultFont); nameLabel.setBounds(new Rectangle(LABEL_X, y, 150, 18)); nameValue.setFont(defaultFont); nameValue.setBounds(new Rectangle(VALUE_X, y, 350, 18)); y += GAP_Y; // New line y += GAP_Y; // New line typeLabel.setText("Type: "); typeLabel.setFont(defaultFont); typeLabel.setBounds(new Rectangle(LABEL_X, y, 150, 18)); typeCombo.setFont(defaultFont); typeCombo.setBounds(new Rectangle(VALUE_X, y, 350, 18)); // What happens when the Type value is changed? typeCombo.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { if (isSIFSelected()) { encoding.setSelected(true); // SIFs always encoded encoding.setEnabled(false); } else { encryption.setSelected(false); encoding.setSelected(false); encoding.setEnabled(true); } } }); y += GAP_Y; // New line int x = LABEL_X; y = addExtraComponents(x, y, GAP_X, GAP_Y); // Add other components, if needed encryption.setText("Encrypt data"); encryption.setFont(defaultFont); encryption.setSelected(false); encryption.setBounds(x, y, 150, 25); // What happens if the encryption is enabled? encryption.addItemListener(new ItemListener() { public void itemStateChanged(ItemEvent e) { if (e.getStateChange() == e.SELECTED) { encoding.setSelected(true); // Encryption implies encoding encoding.setEnabled(false); } if (e.getStateChange() == e.DESELECTED) { if (!isSIFSelected()) { encoding.setEnabled(true); } } } }); y += GAP_Y; // New line encoding.setText("Encode data in Base 64"); encoding.setFont(defaultFont); encoding.setSelected(false); encoding.setBounds(x, y, 150, 25); y += GAP_Y; // New line y += GAP_Y; // New line confirmButton.setFont(defaultFont); confirmButton.setText("Add"); confirmButton.setBounds(VALUE_X, y, 70, 25); // What happens when the confirmButton is pressed? confirmButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent event) { try { validateValues(); getValues(); if (getState() == STATE_INSERT) { ExchangeSyncSourceConfigPanel.this.actionPerformed(new ActionEvent( ExchangeSyncSourceConfigPanel.this, ACTION_EVENT_INSERT, event.getActionCommand())); } else { ExchangeSyncSourceConfigPanel.this.actionPerformed(new ActionEvent( ExchangeSyncSourceConfigPanel.this, ACTION_EVENT_UPDATE, event.getActionCommand())); } } catch (Exception e) { notifyError(new AdminException(e.getMessage(), e)); } } }); // Adds all components to the panel this.add(panelName, null); this.add(nameLabel, null); this.add(sourceUriLabel, null); this.add(sourceUriValue, null); this.add(nameValue, null); this.add(typeLabel, null); this.add(typeCombo, null); this.add(encryption, null); this.add(encoding, null); this.add(confirmButton, null); } }