UDArchiveSearchPanel.java

/**
 * Copyright 1999-2009 The Pegadi Team
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.pegadi.storysketch.views.plugins;

import org.apache.xerces.parsers.DOMParser;
import org.pegadi.storysketch.views.RDFItem;
import org.pegadi.storysketch.views.RDFTable;
import org.pegadi.storysketch.views.RDFTableModel;
import org.pegadi.storysketch.views.RDFTransferable;
import org.w3c.dom.Document;

import javax.swing.*;
import java.awt.*;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.net.URL;

public class UDArchiveSearchPanel extends ArchiveSearchPanel {

    //    RDFList results;
    RDFTable results;

    JScrollPane resultsScroll = new JScrollPane();

    JTextField searchField;

    DOMParser parser;

    public UDArchiveSearchPanel() {

        RDFTableModel model = new RDFTableModel();

        results = new RDFTable(model, false);


        resultsScroll.setViewportView(results);

        results.setDragEnabled(true);
        results.setTransferHandler(new ResultsTransferHandler());

        setLayout(new BorderLayout());

        JPanel topPanel = new JPanel();

        searchField = new JTextField(13);

        searchField.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent e) {
                    setCursor(new Cursor(Cursor.WAIT_CURSOR));
                    performSearch();
                    setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
                }
            });

        // Search button
        URL searchUrl = getClass().getClassLoader().getResource("images/org/pegadi/storysketch/swing_search.gif");
        ImageIcon searchIcon = new ImageIcon(searchUrl);

        JButton searchButton = new JButton(new AbstractAction("", searchIcon) {
                public void actionPerformed(ActionEvent e) {
                    setCursor(new Cursor(Cursor.WAIT_CURSOR));
                    performSearch();
                    setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
                }
            });


        topPanel.add(new JLabel("Søk:"));
        topPanel.add(searchField);
        topPanel.add(searchButton);

        add(topPanel, BorderLayout.NORTH);
        add(resultsScroll, BorderLayout.CENTER);


    }

    public void clear() {
        searchField.setText("");
        RDFTableModel model = (RDFTableModel) results.getModel();
        model.clear();
    }

    public RDFTable getResultTable() {
        return results;
    }

    private void performSearch() {

        if(parser == null)
            parser  = new DOMParser();

        Document doc = null;

        String encoded;

        try {
            encoded = java.net.URLEncoder.encode(searchField.getText(), "iso-8859-1");
        } catch (java.io.UnsupportedEncodingException e) {
            encoded = searchField.getText();
        }

        String url = "http://underdusken.no:8888/storysketch/udarchive/search?queryString="+
            encoded;

        try {
            parser.parse(url);
        } catch (Exception se) {
            JOptionPane.showMessageDialog(SwingUtilities.windowForComponent(results), "Kunne ikke utføre søk",
                                          "Feil ved søk",
                                          JOptionPane.ERROR_MESSAGE);
            se.printStackTrace();
            return;
        }

        RDFTableModel model = (RDFTableModel) results.getModel();
        model.clear();
        model.loadRDF(parser.getDocument().getDocumentElement());

        if(model.getRowCount() == 0) {
            resultsScroll.setViewportView(new JLabel("<html><font size=\"+1\"><b>Beklager</b></font><br>Fant ingen saker i arkivet.<br> (\"" +searchField.getText() +"\")</html>"));
        } else {
            resultsScroll.setViewportView(results);
        }

    }

    class ResultsTransferHandler extends TransferHandler {

        public int getSourceActions(JComponent c) {
            return COPY;
        }


        protected Transferable createTransferable(JComponent c) {

            if(c instanceof JTable) {
                JTable table = (JTable)c;
                Object selected = table.getValueAt(table.getSelectedRow(), 0);

                if(selected instanceof RDFItem) {

                    RDFItem i = (RDFItem) selected;

                    return new RDFTransferable(i);
                }
            }
            return null;
        }


        public boolean canImport(JComponent c, DataFlavor[] flavors) {
            return false;
        }
    }
}