Java tutorial
/* * Copyright (C) 2010, Google Inc. * Copyright (C) 2008, Robin Rosenberg <robin.rosenberg@dewire.com> * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org> * and other copyright owners as documented in the project's IP log. * * This program and the accompanying materials are made available * under the terms of the Eclipse Distribution License v1.0 which * accompanies this distribution, is reproduced below, and is * available at http://www.eclipse.org/org/documents/edl-v10.php * * All rights reserved. * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * - Neither the name of the Eclipse Foundation, Inc. nor the * names of its contributors may be used to endorse or promote * products derived from this software without specific prior * written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ package org.eclipse.jgit.awtui; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.awt.Insets; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JPasswordField; import javax.swing.JTextField; import org.eclipse.jgit.errors.UnsupportedCredentialItem; import org.eclipse.jgit.transport.ChainingCredentialsProvider; import org.eclipse.jgit.transport.CredentialItem; import org.eclipse.jgit.transport.CredentialsProvider; import org.eclipse.jgit.transport.NetRCCredentialsProvider; import org.eclipse.jgit.transport.URIish; /** * Interacts with the user during authentication by using AWT/Swing dialogs. */ public class AwtCredentialsProvider extends CredentialsProvider { /** * Install this implementation as the default. */ public static void install() { final AwtCredentialsProvider c = new AwtCredentialsProvider(); CredentialsProvider cp = new ChainingCredentialsProvider(new NetRCCredentialsProvider(), c); CredentialsProvider.setDefault(cp); } /** {@inheritDoc} */ @Override public boolean isInteractive() { return true; } /** {@inheritDoc} */ @Override public boolean supports(CredentialItem... items) { for (CredentialItem i : items) { if (i instanceof CredentialItem.StringType) continue; else if (i instanceof CredentialItem.CharArrayType) continue; else if (i instanceof CredentialItem.YesNoType) continue; else if (i instanceof CredentialItem.InformationalMessage) continue; else return false; } return true; } /** {@inheritDoc} */ @Override public boolean get(URIish uri, CredentialItem... items) throws UnsupportedCredentialItem { switch (items.length) { case 0: return true; case 1: final CredentialItem item = items[0]; if (item instanceof CredentialItem.InformationalMessage) { JOptionPane.showMessageDialog(null, item.getPromptText(), UIText.get().warning, JOptionPane.INFORMATION_MESSAGE); return true; } else if (item instanceof CredentialItem.YesNoType) { CredentialItem.YesNoType v = (CredentialItem.YesNoType) item; int r = JOptionPane.showConfirmDialog(null, v.getPromptText(), UIText.get().warning, JOptionPane.YES_NO_OPTION); switch (r) { case JOptionPane.YES_OPTION: v.setValue(true); return true; case JOptionPane.NO_OPTION: v.setValue(false); return true; case JOptionPane.CANCEL_OPTION: case JOptionPane.CLOSED_OPTION: default: return false; } } else { return interactive(uri, items); } default: return interactive(uri, items); } } private static boolean interactive(URIish uri, CredentialItem[] items) { final GridBagConstraints gbc = new GridBagConstraints(0, 0, 1, 1, 1, 1, GridBagConstraints.NORTHWEST, GridBagConstraints.NONE, new Insets(0, 0, 0, 0), 0, 0); final JPanel panel = new JPanel(); panel.setLayout(new GridBagLayout()); final JTextField[] texts = new JTextField[items.length]; for (int i = 0; i < items.length; i++) { CredentialItem item = items[i]; if (item instanceof CredentialItem.StringType || item instanceof CredentialItem.CharArrayType) { gbc.fill = GridBagConstraints.NONE; gbc.gridwidth = GridBagConstraints.RELATIVE; gbc.gridx = 0; panel.add(new JLabel(item.getPromptText()), gbc); gbc.fill = GridBagConstraints.HORIZONTAL; gbc.gridwidth = GridBagConstraints.RELATIVE; gbc.gridx = 1; if (item.isValueSecure()) texts[i] = new JPasswordField(20); else texts[i] = new JTextField(20); panel.add(texts[i], gbc); gbc.gridy++; } else if (item instanceof CredentialItem.InformationalMessage) { gbc.fill = GridBagConstraints.NONE; gbc.gridwidth = GridBagConstraints.REMAINDER; gbc.gridx = 0; panel.add(new JLabel(item.getPromptText()), gbc); gbc.gridy++; } else { throw new UnsupportedCredentialItem(uri, item.getPromptText()); } } if (JOptionPane.showConfirmDialog(null, panel, UIText.get().authenticationRequired, JOptionPane.OK_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE) != JOptionPane.OK_OPTION) return false; // cancel for (int i = 0; i < items.length; i++) { CredentialItem item = items[i]; JTextField f = texts[i]; if (item instanceof CredentialItem.StringType) { CredentialItem.StringType v = (CredentialItem.StringType) item; if (f instanceof JPasswordField) v.setValue(new String(((JPasswordField) f).getPassword())); else v.setValue(f.getText()); } else if (item instanceof CredentialItem.CharArrayType) { CredentialItem.CharArrayType v = (CredentialItem.CharArrayType) item; if (f instanceof JPasswordField) v.setValueNoCopy(((JPasswordField) f).getPassword()); else v.setValueNoCopy(f.getText().toCharArray()); } } return true; } }