Java tutorial
/** * DataCleaner (community edition) * Copyright (C) 2014 Neopost - Customer Information Management * * This copyrighted material is made available to anyone wishing to use, modify, * copy, or redistribute it subject to the terms and conditions of the GNU * Lesser General Public License, as published by the Free Software Foundation. * * 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 Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this distribution; if not, write to: * Free Software Foundation, Inc. * 51 Franklin Street, Fifth Floor * Boston, MA 02110-1301 USA */ package org.datacleaner.windows; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.ItemEvent; import java.awt.event.ItemListener; import java.io.InputStream; import java.util.List; import java.util.Map.Entry; import javax.swing.JButton; import javax.swing.JCheckBox; import javax.swing.JComboBox; import javax.swing.JComponent; import javax.swing.JOptionPane; import javax.swing.JPasswordField; import javax.swing.border.EmptyBorder; import javax.swing.event.DocumentEvent; import org.apache.commons.httpclient.HttpStatus; import org.apache.http.HttpResponse; import org.apache.http.StatusLine; import org.apache.http.client.methods.HttpGet; import org.apache.metamodel.util.FileHelper; import org.datacleaner.bootstrap.DCWindowContext; import org.datacleaner.bootstrap.WindowContext; import org.datacleaner.connection.DataHubDatastore; import org.datacleaner.guice.Nullable; import org.datacleaner.metamodel.datahub.DataHubConnection; import org.datacleaner.metamodel.datahub.DataHubRepoConnection; import org.datacleaner.metamodel.datahub.DataHubSecurityMode; import org.datacleaner.user.MutableDatastoreCatalog; import org.datacleaner.user.UserPreferences; import org.datacleaner.user.UserPreferencesImpl; import org.datacleaner.util.DCDocumentListener; import org.datacleaner.util.IconUtils; import org.datacleaner.util.ImmutableEntry; import org.datacleaner.util.LookAndFeelManager; import org.datacleaner.util.StringUtils; import org.datacleaner.util.WidgetFactory; import org.datacleaner.util.WidgetUtils; import org.datacleaner.util.http.MonitorHttpClient; import org.datacleaner.widgets.DCLabel; import org.jdesktop.swingx.JXTextField; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.fasterxml.jackson.databind.ObjectMapper; import com.google.inject.Inject; public class DataHubDatastoreDialog extends AbstractDatastoreDialog<DataHubDatastore> { private static final Logger LOGGER = LoggerFactory.getLogger(DataHubDatastoreDialog.class); private static final long serialVersionUID = 1L; private final JXTextField _hostTextField; private final JXTextField _portTextField; private final JCheckBox _httpsCheckBox; private final JXTextField _usernameTextField; private final JPasswordField _passwordTextField; private final JCheckBox _acceptUnverifiedSslPeersCheckBox; private final JComboBox<String> _securityModeSelector; private final JButton _testButton; private final DCLabel _urlLabel; public static class UserInfo { public String username; public String tenant; } public DataHubRepoConnection createConnection() { int port = 8080; try { port = Integer.parseInt(_portTextField.getText()); } catch (NumberFormatException e) { // do nothing, fall back to 8080. } final String username = _usernameTextField.getText(); final String password = new String(_passwordTextField.getPassword()); return new DataHubRepoConnection(new DataHubConnection(_hostTextField.getText(), port, username, password, _httpsCheckBox.isSelected(), _acceptUnverifiedSslPeersCheckBox.isSelected(), DataHubSecurityMode.valueOf(_securityModeSelector.getSelectedItem().toString()))); } private void updateUrlLabel() { final DataHubRepoConnection connection = createConnection(); _urlLabel.setText("Repository url: " + connection.getRepoUrl()); } @Inject public DataHubDatastoreDialog(WindowContext windowContext, MutableDatastoreCatalog datastoreCatalog, @Nullable DataHubDatastore originalDatastore, UserPreferences userPreferences) { super(originalDatastore, datastoreCatalog, windowContext, userPreferences); _hostTextField = WidgetFactory.createTextField("Hostname"); _portTextField = WidgetFactory.createTextField("Port"); _usernameTextField = WidgetFactory.createTextField("Username"); _passwordTextField = WidgetFactory.createPasswordField(); // _contextPathTextField = // WidgetFactory.createTextField("Context path"); _securityModeSelector = new JComboBox<>( new String[] { DataHubSecurityMode.DEFAULT.toString(), DataHubSecurityMode.CAS.toString() }); _securityModeSelector.setEditable(false); _urlLabel = DCLabel.bright(""); _urlLabel.setForeground(WidgetUtils.BG_COLOR_LESS_BRIGHT); _urlLabel.setBorder(new EmptyBorder(5, 0, 5, 0)); final DCDocumentListener genericDocumentListener = new DCDocumentListener() { @Override protected void onChange(DocumentEvent event) { validateAndUpdate(); updateUrlLabel(); } }; _httpsCheckBox = new JCheckBox("Use HTTPS?", false); _httpsCheckBox.setOpaque(false); _httpsCheckBox.setForeground(WidgetUtils.BG_COLOR_BRIGHTEST); _httpsCheckBox.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent event) { updateUrlLabel(); validateAndUpdate(); } }); _acceptUnverifiedSslPeersCheckBox = new JCheckBox("Accept unverified SSL peers?", false); _acceptUnverifiedSslPeersCheckBox.setOpaque(false); _acceptUnverifiedSslPeersCheckBox.setForeground(WidgetUtils.BG_COLOR_BRIGHTEST); _acceptUnverifiedSslPeersCheckBox.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent event) { validateAndUpdate(); } }); _hostTextField.getDocument().addDocumentListener(genericDocumentListener); _portTextField.getDocument().addDocumentListener(genericDocumentListener); _usernameTextField.getDocument().addDocumentListener(genericDocumentListener); _passwordTextField.getDocument().addDocumentListener(genericDocumentListener); _securityModeSelector.addItemListener(new ItemListener() { @Override public void itemStateChanged(ItemEvent e) { validateAndUpdate(); updateUrlLabel(); } }); _testButton = WidgetFactory.createDefaultButton("Test connection", IconUtils.ACTION_REFRESH); _testButton.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent event) { final DataHubRepoConnection connection = createConnection(); final String getTenantInfoUrl = connection.getUserInfoUrl(); final HttpGet request = new HttpGet(getTenantInfoUrl); try (final MonitorHttpClient monitorHttpClient = connection.getHttpClient()) { final HttpResponse response = monitorHttpClient.execute(request); final StatusLine statusLine = response.getStatusLine(); if (statusLine.getStatusCode() == HttpStatus.SC_OK || statusLine.getStatusCode() == HttpStatus.SC_CREATED) { // read response as JSON. final InputStream content = response.getEntity().getContent(); final UserInfo userInfo; try { userInfo = new ObjectMapper().readValue(content, UserInfo.class); } finally { FileHelper.safeClose(content); } LOGGER.info("Get tenant info request responded with tenant name: {}", userInfo.tenant); JOptionPane.showMessageDialog(DataHubDatastoreDialog.this, "Connection successful!"); } else { final String reasonPhrase = statusLine.getReasonPhrase(); WidgetUtils.showErrorMessage("Server reported error", "Server replied with status " + statusLine.getStatusCode() + ":\n" + reasonPhrase); } } catch (Exception e) { // TODO: This dialog is shown behind the modal dialog WidgetUtils.showErrorMessage("Connection failed", "Connecting to DataHub failed. Did you remember to fill in all the necessary fields?", e); } validateAndUpdate(); } }); if (originalDatastore != null) { _hostTextField.setText(originalDatastore.getHost()); _portTextField.setText(originalDatastore.getPort() + ""); _httpsCheckBox.setSelected(originalDatastore.isHttps()); _acceptUnverifiedSslPeersCheckBox.setSelected(originalDatastore.isAcceptUnverifiedSslPeers()); if (originalDatastore.getSecurityMode().equals(DataHubSecurityMode.CAS)) { _securityModeSelector.setSelectedIndex(1); } else { _securityModeSelector.setSelectedIndex(0); } _datastoreNameTextField.setText(originalDatastore.getName()); _datastoreNameTextField.setEditable(false); _usernameTextField.setText(originalDatastore.getUsername()); _passwordTextField.setText(originalDatastore.getPassword()); } else { _hostTextField.setText("localhost"); _portTextField.setText("8080"); } updateUrlLabel(); } @Override protected boolean validateForm() { final String host = _hostTextField.getText(); if (StringUtils.isNullOrEmpty(host)) { setStatusError("Please enter DataHub host name"); return false; } final String port = _portTextField.getText(); if (StringUtils.isNullOrEmpty(port)) { setStatusError("Please enter DataHub port number"); return false; } else { try { int portInt = Integer.parseInt(port); if (portInt <= 0) { setStatusError("Please enter a valid (positive port number)"); return false; } } catch (NumberFormatException e) { setStatusError("Please enter a valid port number"); return false; } } final String datastoreName = _datastoreNameTextField.getText(); if (StringUtils.isNullOrEmpty(datastoreName)) { setStatusError("Please enter a datastore name"); return false; } final String username = _usernameTextField.getText(); if (StringUtils.isNullOrEmpty(username)) { setStatusError("Please enter username"); return false; } final char[] password = _passwordTextField.getPassword(); if (password.length < 1) { setStatusError("Please enter password"); return false; } setStatusValid(); return true; } @Override protected DataHubDatastore createDatastore() { final String host = _hostTextField.getText(); final Integer port = Integer.parseInt(_portTextField.getText()); final String name = _datastoreNameTextField.getText(); final String username = _usernameTextField.getText(); final char[] passwordChars = _passwordTextField.getPassword(); final String password = String.valueOf(passwordChars); final boolean https = _httpsCheckBox.isSelected(); final boolean acceptUnverifiedSslPeersCheckBox = _acceptUnverifiedSslPeersCheckBox.isSelected(); final String securityMode = _securityModeSelector.getSelectedItem().toString().toUpperCase(); return new DataHubDatastore(name, host, port, username, password, https, acceptUnverifiedSslPeersCheckBox, DataHubSecurityMode.valueOf(securityMode)); } @Override public String getWindowTitle() { return "DataHub datastore"; } @Override protected String getBannerTitle() { return "DataHub"; } @Override protected String getDatastoreIconPath() { return IconUtils.DATAHUB_IMAGEPATH; } @Override protected List<Entry<String, JComponent>> getFormElements() { List<Entry<String, JComponent>> result = super.getFormElements(); result.add(new ImmutableEntry<String, JComponent>("DataHub hostname", _hostTextField)); result.add(new ImmutableEntry<String, JComponent>("DataHub port", _portTextField)); result.add(new ImmutableEntry<String, JComponent>("", _httpsCheckBox)); result.add(new ImmutableEntry<String, JComponent>("", _acceptUnverifiedSslPeersCheckBox)); result.add(new ImmutableEntry<String, JComponent>("Security mode", _securityModeSelector)); result.add(new ImmutableEntry<String, JComponent>("DataHub username", _usernameTextField)); result.add(new ImmutableEntry<String, JComponent>("DataHub password", _passwordTextField)); result.add(new ImmutableEntry<String, JComponent>(null, _urlLabel)); result.add(new ImmutableEntry<String, JComponent>(null, _testButton)); return result; } public static void main(String[] args) { LookAndFeelManager.get().init(); UserPreferences userPreferences = new UserPreferencesImpl(null); WindowContext windowContext = new DCWindowContext(null, userPreferences, null); DataHubDatastoreDialog dialog = new DataHubDatastoreDialog(windowContext, null, null, userPreferences); dialog.open(); } }