001    /*
002     * Copyright (C) 2008-2010 by Holger Arndt
003     *
004     * This file is part of the Universal Java Matrix Package (UJMP).
005     * See the NOTICE file distributed with this work for additional
006     * information regarding copyright ownership and licensing.
007     *
008     * UJMP is free software; you can redistribute it and/or modify
009     * it under the terms of the GNU Lesser General Public License as
010     * published by the Free Software Foundation; either version 2
011     * of the License, or (at your option) any later version.
012     *
013     * UJMP is distributed in the hope that it will be useful,
014     * but WITHOUT ANY WARRANTY; without even the implied warranty of
015     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
016     * GNU Lesser General Public License for more details.
017     *
018     * You should have received a copy of the GNU Lesser General Public
019     * License along with UJMP; if not, write to the
020     * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
021     * Boston, MA  02110-1301  USA
022     */
023    
024    package org.ujmp.gui.actions;
025    
026    import java.awt.event.KeyEvent;
027    import java.net.URL;
028    
029    import javax.swing.Action;
030    import javax.swing.JComponent;
031    import javax.swing.JOptionPane;
032    
033    import org.ujmp.core.Matrix;
034    import org.ujmp.core.MatrixFactory;
035    import org.ujmp.core.enums.FileFormat;
036    import org.ujmp.core.interfaces.GUIObject;
037    
038    public class ImportMatrixFromURLAction extends ObjectAction {
039            private static final long serialVersionUID = -7585669703654474086L;
040    
041            public ImportMatrixFromURLAction(JComponent c, GUIObject m) {
042                    super(c, m);
043                    putValue(Action.NAME, "from URL...");
044                    putValue(Action.SHORT_DESCRIPTION,
045                                    "import a matrix from a location on the web");
046                    putValue(Action.MNEMONIC_KEY, KeyEvent.VK_U);
047            }
048    
049            
050            public Object call() {
051                    try {
052                            URL url = null;
053                            while (url == null) {
054                                    String s = JOptionPane.showInputDialog("Enter URL:", "http://");
055                                    url = new URL(s);
056                            }
057                            FileFormat fileFormat = FileFormat.values()[JOptionPane
058                                            .showOptionDialog(getComponent(), "Select format",
059                                                            "Import Matrix", JOptionPane.OK_OPTION,
060                                                            JOptionPane.QUESTION_MESSAGE, null, FileFormat
061                                                                            .values(), FileFormat.CSV)];
062    
063                            Matrix m = MatrixFactory.importFromURL(fileFormat, url);
064                            m.showGUI();
065                            return m;
066                    } catch (Exception e) {
067                            e.printStackTrace();
068                            return null;
069                    }
070            }
071    }