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/**
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* '$RCSfile$'
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* Copyright: 2004 University of New Mexico and the
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* Regents of the University of California
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*
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* '$Author: costa $'
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* '$Date: 2006-01-19 12:06:27 -0800 (Thu, 19 Jan 2006) $'
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* '$Revision: 2892 $'
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package edu.ucsb.nceas.metacat.harvesterClient;
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import java.awt.BorderLayout;
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import java.awt.Dimension;
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import java.awt.event.ActionEvent;
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import java.awt.event.ActionListener;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.PrintStream;
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import java.io.PrintWriter;
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import java.io.Reader;
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import java.util.Properties;
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import javax.swing.JButton;
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import javax.swing.JFileChooser;
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import javax.swing.JFrame;
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import javax.swing.JMenu;
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import javax.swing.JMenuBar;
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import javax.swing.JMenuItem;
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import javax.swing.JOptionPane;
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import javax.swing.JPanel;
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import javax.swing.JScrollPane;
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import javax.swing.JTable;
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import javax.swing.KeyStroke;
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import javax.swing.ListSelectionModel;
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import javax.swing.event.ListSelectionEvent;
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import javax.swing.event.ListSelectionListener;
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import javax.swing.table.AbstractTableModel;
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import javax.swing.table.TableColumn;
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import javax.swing.table.TableModel;
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import javax.swing.text.Document;
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import javax.xml.parsers.ParserConfigurationException;
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import org.xml.sax.Attributes;
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import org.xml.sax.ContentHandler;
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import org.xml.sax.ErrorHandler;
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import org.xml.sax.InputSource;
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import org.xml.sax.SAXException;
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import org.xml.sax.SAXParseException;
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import org.xml.sax.XMLReader;
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import org.xml.sax.helpers.DefaultHandler;
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import org.xml.sax.helpers.XMLReaderFactory;
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/**
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* The Harvest List Editor reads a Harvest List XML file and displays it as a
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* JTable. Allows user to add, modify, or delete <Document> elements in the
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* Harvest List, and save changes back to the disk.
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*
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*/
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public class HarvestListEditor extends JFrame implements ActionListener {
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String clipboardDocumentType = "";
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String clipboardDocumentURL = "";
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String clipboardIdentifier = "";
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String clipboardRevision = "";
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String clipboardScope = "";
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JButton copyButton;
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JButton cutButton;
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String defaultDocumentType = "eml://ecoinformatics.org/eml-2.0.1";
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String defaultDocumentURL = "http://";
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String defaultHarvestList = "";
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String defaultIdentifier = "1";
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String defaultRevision = "1";
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String defaultScope = "dataset";
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Document doc;
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JScrollPane docPane;
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JFileChooser fileChooser = new JFileChooser();
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File harvestListFile;
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boolean harvestListHasChanged = false;
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JMenuBar menuBar;
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final int numColumns = 6;
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final int numRows = 1200;
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JButton pasteButton;
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JButton pasteDefaultsButton;
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Properties properties;
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private String schemaLocation =
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"eml://ecoinformatics.org/harvestList harvestList.xsd";
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int selectedRow = -1;
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final JTable table;
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TableModel tableModel;
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File tempFile;
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String title = "Harvest List Editor";
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// Menu items
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JMenuItem exitMenuItem = new JMenuItem("Exit");
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JMenuItem newMenuItem = new JMenuItem("New");
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JMenuItem openMenuItem = new JMenuItem("Open...");
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JMenuItem saveMenuItem = new JMenuItem("Save");
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JMenuItem saveAsMenuItem = new JMenuItem("Save As...");
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JMenuItem validateMenuItem = new JMenuItem("Validate");
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/**
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* The main program. Instantiate the main frame, a HarvestListEditor object.
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*
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* @param args
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*/
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public static void main(String[] args) {
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HarvestListEditor harvestListEditor = new HarvestListEditor();
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}
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/**
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* Constructor for HarvestListEditor class.
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*/
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public HarvestListEditor() {
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super("Harvest List Editor");
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JPanel buttonPanel = new JPanel();
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String[] fileItems =
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new String[] {"New", "Open...", "Save", "Save As...", "Exit"};
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JMenu fileMenu = new JMenu("File");
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char[] fileShortCuts = {'N', 'O', 'S', 'A', 'X'};
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TableColumn tableColumn;
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loadProperties();
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setSize(1000, 400);
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setDefaultCloseOperation(EXIT_ON_CLOSE);
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menuBar = new JMenuBar();
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/*
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* Add menu items to the File menu
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*/
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newMenuItem.setAccelerator(KeyStroke.getKeyStroke('N',
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java.awt.Event.CTRL_MASK,
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false));
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newMenuItem.addActionListener(this);
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fileMenu.add(newMenuItem);
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openMenuItem.setAccelerator(KeyStroke.getKeyStroke('O',
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java.awt.Event.CTRL_MASK,
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false));
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openMenuItem.addActionListener(this);
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fileMenu.add(openMenuItem);
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saveMenuItem.setAccelerator(KeyStroke.getKeyStroke('S',
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java.awt.Event.CTRL_MASK,
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false));
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saveMenuItem.addActionListener(this);
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saveMenuItem.setEnabled(false);
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fileMenu.add(saveMenuItem);
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saveAsMenuItem.setAccelerator(KeyStroke.getKeyStroke('A',
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java.awt.Event.CTRL_MASK,
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false));
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saveAsMenuItem.addActionListener(this);
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fileMenu.add(saveAsMenuItem);
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validateMenuItem.setAccelerator(KeyStroke.getKeyStroke('V',
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java.awt.Event.CTRL_MASK,
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false));
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validateMenuItem.addActionListener(this);
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fileMenu.add(validateMenuItem);
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exitMenuItem.setAccelerator(KeyStroke.getKeyStroke('X',
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java.awt.Event.CTRL_MASK,
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false));
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exitMenuItem.addActionListener(this);
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fileMenu.add(exitMenuItem);
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menuBar.add(fileMenu); // Add the File menu to the menu bar
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setJMenuBar(menuBar); // Set the frame's menu bar to this menu bar
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//table = new JTable(numRows, numColumns);
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table = new JTable(new HarvestListTableModel());
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table.setPreferredScrollableViewportSize(new Dimension(900, 300));
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tableColumn = table.getColumnModel().getColumn(0);
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tableColumn.setPreferredWidth(30);
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tableColumn = table.getColumnModel().getColumn(1);
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tableColumn.setPreferredWidth(200);
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tableColumn = table.getColumnModel().getColumn(2);
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tableColumn.setPreferredWidth(50);
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tableColumn = table.getColumnModel().getColumn(3);
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tableColumn.setPreferredWidth(50);
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tableColumn = table.getColumnModel().getColumn(4);
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tableColumn.setPreferredWidth(250);
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tableColumn = table.getColumnModel().getColumn(5);
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tableColumn.setPreferredWidth(320);
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table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
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tableModel = table.getModel();
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initHarvestList();
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//Ask to be notified of selection changes.
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ListSelectionModel rowSM = table.getSelectionModel();
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rowSM.addListSelectionListener(new ListSelectionListener() {
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public void valueChanged(ListSelectionEvent e) {
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ListSelectionModel lsm;
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//Ignore extra messages.
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if (e.getValueIsAdjusting()) return;
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lsm = (ListSelectionModel)e.getSource();
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// If now row is selected, disable all buttons.
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if (lsm.isSelectionEmpty()) {
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selectedRow = -1;
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cutButton.setEnabled(false);
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copyButton.setEnabled(false);
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pasteButton.setEnabled(false);
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pasteDefaultsButton.setEnabled(false);
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}
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// If a row is selected, manage the buttons based on the selected row
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// and the current clipboard values.
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else {
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selectedRow = lsm.getMinSelectionIndex();
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manageButtons(selectedRow);
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}
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}
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});
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docPane = new JScrollPane(table);
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getContentPane().add(docPane, BorderLayout.CENTER);
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cutButton = new JButton("Cut");
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copyButton = new JButton("Copy");
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pasteButton = new JButton("Paste");
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pasteDefaultsButton = new JButton("Paste Defaults");
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// Action listener for the Copy button.
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copyButton.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent ae) {
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copyRow(selectedRow);
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manageButtons(selectedRow);
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harvestListHasChanged = true;
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}
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}
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);
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// Action listener for the Cut button.
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cutButton.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent ae) {
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cutRow(selectedRow);
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manageButtons(selectedRow);
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harvestListHasChanged = true;
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}
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}
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);
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// Action listener for the Paste button.
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pasteButton.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent ae) {
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pasteRow(selectedRow);
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manageButtons(selectedRow);
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harvestListHasChanged = true;
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}
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}
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);
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// Action listener for the Paste Defaults button.
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pasteDefaultsButton.addActionListener(new ActionListener() {
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public void actionPerformed(ActionEvent ae) {
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pasteDefaultValues(selectedRow);
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manageButtons(selectedRow);
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harvestListHasChanged = true;
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}
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}
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);
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cutButton.setEnabled(false);
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copyButton.setEnabled(false);
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pasteButton.setEnabled(false);
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pasteDefaultsButton.setEnabled(false);
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buttonPanel.add(cutButton);
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buttonPanel.add(copyButton);
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buttonPanel.add(pasteButton);
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buttonPanel.add(pasteDefaultsButton);
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buttonPanel.setOpaque(true);
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getContentPane().add(buttonPanel, BorderLayout.SOUTH);
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// If the default Harvest List option has a value, and the file exists,
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// loads its contents.
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//
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if ((defaultHarvestList != null) && (!defaultHarvestList.equals(""))) {
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harvestListFile = new File(defaultHarvestList);
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if (harvestListFile.exists()) {
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try {
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loadHarvestList(harvestListFile);
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saveMenuItem.setEnabled(true);
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}
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catch (ParserConfigurationException e) {
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System.out.println("Error parsing Harvest List: " + e.getMessage());
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}
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}
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else {
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System.out.println(
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"Warning: the default harvest list file that was specified in the " +
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".harvestListEditor configuration file does not exist:\n" +
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harvestListFile
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);
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fileNew();
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}
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}
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else {
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fileNew();
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}
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try {
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tempFile = File.createTempFile("harvestListTemp", ".xml");
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}
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catch (IOException ioe) {
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System.out.println("Error creating temporary file: " + ioe.getMessage());
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}
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setVisible(true);
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}
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/**
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* Implements action listeners for menu items.
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*
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* @param e An ActionEvent object, determines the menu item that was
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* selected.
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*/
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public void actionPerformed(ActionEvent e) {
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if ((e.getActionCommand()).equals("New")) {
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fileNew();
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}
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else if ((e.getActionCommand()).equals("Open...")) {
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fileOpen();
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}
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else if ((e.getActionCommand()).equals("Save")) {
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fileSave();
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}
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else if ((e.getActionCommand()).equals("Save As...")) {
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fileSaveAs();
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}
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else if ((e.getActionCommand()).equals("Validate")) {
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fileValidate();
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}
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else if ((e.getActionCommand()).equals("Exit")) {
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fileExit();
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}
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}
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/**
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* Adds a new row to the table, setting values for each of the five columns
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* in the row.
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*
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* @param rowIndex the row index
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* @param scope the scope string
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* @param identifier the identifier string
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* @param revision the revision string
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* @param documentType the document type
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* @param documentURL the document URL
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*/
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void addRow(int rowIndex, String scope, String identifier, String revision,
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String documentType, String documentURL) {
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tableModel.setValueAt(scope, rowIndex, 1);
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tableModel.setValueAt(identifier, rowIndex, 2);
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tableModel.setValueAt(revision, rowIndex, 3);
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tableModel.setValueAt(documentType, rowIndex, 4);
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tableModel.setValueAt(documentURL, rowIndex, 5);
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}
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/**
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* Composes a single tag line to be written in the Harvest List.
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*
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* @param indentLevel the number of spaces to begin the line with
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* @param tag the tag name
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* @param text the text to insert within the begin and end tags
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* @return line the composed line
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*/
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String composeLine(int indentLevel, String tag, String text) {
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String line = "";
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for (int i = 0; i < indentLevel; i++) {
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line += " ";
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}
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line += "<" + tag + ">";
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line += text;
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line += "</" + tag + ">";
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return line;
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}
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/**
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* Clears all rows in the table, setting all values to null.
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*/
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void clearHarvestList() {
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for (int rowIndex = 0; rowIndex < numRows; rowIndex++) {
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clearRow(rowIndex);
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}
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}
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/**
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* Clears a single row in the tables, setting all five fields to null.
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*
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* @param rowIndex the index to the table row to be cleared
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*/
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void clearRow(int rowIndex) {
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final String nil = "";
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tableModel.setValueAt(nil, rowIndex, 1);
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tableModel.setValueAt(nil, rowIndex, 2);
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tableModel.setValueAt(nil, rowIndex, 3);
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tableModel.setValueAt(nil, rowIndex, 4);
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tableModel.setValueAt(nil, rowIndex, 5);
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}
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/**
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* Copies the values in a given table row to the clipboard.
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*
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* @param rowIndex the index of the table row to be copied
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*/
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void copyRow(int rowIndex) {
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clipboardScope = (String) tableModel.getValueAt(rowIndex, 1);
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clipboardIdentifier = (String) tableModel.getValueAt(rowIndex, 2);
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clipboardRevision = (String) tableModel.getValueAt(rowIndex, 3);
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clipboardDocumentType = (String) tableModel.getValueAt(rowIndex, 4);
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clipboardDocumentURL = (String) tableModel.getValueAt(rowIndex, 5);
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}
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448
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/**
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* Cuts a row from the table. The row is copied to the clipboard and then
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* cleared.
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*
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452
|
* @param rowIndex the index of the table row to be copied
|
453
|
*/
|
454
|
void cutRow(int rowIndex) {
|
455
|
copyRow(rowIndex);
|
456
|
clearRow(rowIndex);
|
457
|
}
|
458
|
|
459
|
|
460
|
/**
|
461
|
* Exit from the Harvest List Editor. Prompt to save changes if appropriate.
|
462
|
*/
|
463
|
void fileExit() {
|
464
|
int value;
|
465
|
|
466
|
if (harvestListHasChanged) {
|
467
|
value = saveChangesDialog();
|
468
|
|
469
|
if (value == JOptionPane.YES_OPTION) {
|
470
|
try {
|
471
|
// Save the changes then exit
|
472
|
//
|
473
|
fileSave();
|
474
|
System.exit(0);
|
475
|
}
|
476
|
catch (Exception exception) {
|
477
|
exception.printStackTrace();
|
478
|
}
|
479
|
}
|
480
|
else if (value == JOptionPane.NO_OPTION) {
|
481
|
// Exit without saving changes
|
482
|
System.exit(0);
|
483
|
}
|
484
|
}
|
485
|
else {
|
486
|
System.exit(0);
|
487
|
}
|
488
|
}
|
489
|
|
490
|
|
491
|
/**
|
492
|
* Replace the current Harvest List with an empty Harvest List. Prompt to save
|
493
|
* changes if appropriate.
|
494
|
*/
|
495
|
void fileNew() {
|
496
|
int value;
|
497
|
|
498
|
if (harvestListHasChanged) {
|
499
|
value = saveChangesDialog();
|
500
|
|
501
|
if (value == JOptionPane.YES_OPTION) {
|
502
|
try {
|
503
|
fileSave();
|
504
|
}
|
505
|
catch (Exception exception) {
|
506
|
exception.printStackTrace();
|
507
|
}
|
508
|
}
|
509
|
else if (value == JOptionPane.CANCEL_OPTION) {
|
510
|
return;
|
511
|
}
|
512
|
}
|
513
|
|
514
|
clearHarvestList();
|
515
|
harvestListFile = null;
|
516
|
setTitle(title + ": (Untitled)");
|
517
|
saveMenuItem.setEnabled(false);
|
518
|
harvestListHasChanged = false;
|
519
|
}
|
520
|
|
521
|
|
522
|
/**
|
523
|
* Opens a file dialog to load a Harvest List. Prompts to save changes to the
|
524
|
* current Harvest List if appropriate.
|
525
|
*/
|
526
|
void fileOpen() {
|
527
|
int value;
|
528
|
|
529
|
if (harvestListHasChanged) {
|
530
|
value = saveChangesDialog();
|
531
|
|
532
|
if (value == JOptionPane.YES_OPTION) {
|
533
|
try {
|
534
|
fileSave();
|
535
|
}
|
536
|
catch (Exception exception) {
|
537
|
exception.printStackTrace();
|
538
|
}
|
539
|
}
|
540
|
else if (value == JOptionPane.CANCEL_OPTION) {
|
541
|
return;
|
542
|
}
|
543
|
}
|
544
|
|
545
|
value = fileChooser.showOpenDialog(HarvestListEditor.this);
|
546
|
|
547
|
if (value == JFileChooser.APPROVE_OPTION) {
|
548
|
harvestListFile = fileChooser.getSelectedFile();
|
549
|
try {
|
550
|
clearHarvestList();
|
551
|
loadHarvestList(harvestListFile);
|
552
|
}
|
553
|
catch (ParserConfigurationException e) {
|
554
|
System.out.println("Error parsing Harvest List: " + e.getMessage());
|
555
|
}
|
556
|
harvestListHasChanged = false;
|
557
|
saveMenuItem.setEnabled(true);
|
558
|
}
|
559
|
}
|
560
|
|
561
|
|
562
|
/**
|
563
|
* Save the current Harvest List to disk.
|
564
|
*/
|
565
|
void fileSave() {
|
566
|
if (harvestListFile != null) {
|
567
|
writeFile(harvestListFile);
|
568
|
harvestListHasChanged = false;
|
569
|
}
|
570
|
else {
|
571
|
System.out.println("No action taken");
|
572
|
}
|
573
|
}
|
574
|
|
575
|
|
576
|
/**
|
577
|
* Save the current Harvest List as a potentially different file name.
|
578
|
*/
|
579
|
void fileSaveAs() {
|
580
|
int returnVal;
|
581
|
|
582
|
returnVal = fileChooser.showOpenDialog(HarvestListEditor.this);
|
583
|
|
584
|
if (returnVal == JFileChooser.APPROVE_OPTION) {
|
585
|
harvestListFile = fileChooser.getSelectedFile();
|
586
|
writeFile(harvestListFile);
|
587
|
setTitle(title + ": " + harvestListFile.getName());
|
588
|
saveMenuItem.setEnabled(true);
|
589
|
harvestListHasChanged = false;
|
590
|
}
|
591
|
}
|
592
|
|
593
|
|
594
|
/**
|
595
|
* Validate the Harvest List that is currently stored in the table. This is
|
596
|
* implemented by writing the Harvest List to a temporary file and then
|
597
|
* running the SAX parser on the temporary file.
|
598
|
*/
|
599
|
void fileValidate() {
|
600
|
FileInputStream fis;
|
601
|
HarvestListHandler harvestListHandler = new HarvestListHandler();
|
602
|
InputStreamReader inputStreamReader;
|
603
|
boolean loadHarvestList = false;
|
604
|
boolean validateHarvestList = true;
|
605
|
|
606
|
writeFile(tempFile);
|
607
|
|
608
|
try {
|
609
|
fis = new FileInputStream(tempFile);
|
610
|
inputStreamReader = new InputStreamReader(fis);
|
611
|
harvestListHandler.runParser(this, inputStreamReader, schemaLocation,
|
612
|
loadHarvestList, validateHarvestList);
|
613
|
fis.close();
|
614
|
tempFile.delete();
|
615
|
harvestListMessage("Harvest List is valid");
|
616
|
}
|
617
|
catch (SAXException e) {
|
618
|
harvestListMessage("Validation error: " + e.getMessage());
|
619
|
}
|
620
|
catch (ClassNotFoundException e) {
|
621
|
System.out.println("ClassNotFoundException: " + e.getMessage());
|
622
|
}
|
623
|
catch (IOException ioe) {
|
624
|
System.out.println("Error opening file: " + ioe.getMessage());
|
625
|
}
|
626
|
}
|
627
|
|
628
|
|
629
|
/**
|
630
|
* Displays a short message in a dialog box.
|
631
|
*
|
632
|
* @param message the message text
|
633
|
*/
|
634
|
void harvestListMessage(String message) {
|
635
|
JOptionPane.showMessageDialog(this, message);
|
636
|
}
|
637
|
|
638
|
|
639
|
/**
|
640
|
* Initializes the Harvest List table, filling column 0 with row numbers.
|
641
|
* This is a non-editable column, so its values should never change after
|
642
|
* this point.
|
643
|
*/
|
644
|
void initHarvestList() {
|
645
|
for (int rowIndex = 0; rowIndex < numRows; rowIndex++) {
|
646
|
tableModel.setValueAt(new Integer(rowIndex + 1).toString(), rowIndex, 0);
|
647
|
}
|
648
|
}
|
649
|
|
650
|
|
651
|
/**
|
652
|
* Determines whether the clipboard is currently empty. The clipboard is
|
653
|
* empty if all five of the fields are empty.
|
654
|
*
|
655
|
* @return true if the clipboard is empty, else false
|
656
|
*/
|
657
|
boolean isEmptyClipboard() {
|
658
|
boolean isEmpty = true;
|
659
|
|
660
|
isEmpty = isEmpty && (clipboardScope.equals(""));
|
661
|
isEmpty = isEmpty && (clipboardIdentifier.equals(""));
|
662
|
isEmpty = isEmpty && (clipboardRevision.equals(""));
|
663
|
isEmpty = isEmpty && (clipboardDocumentType.equals(""));
|
664
|
isEmpty = isEmpty && (clipboardDocumentURL.equals(""));
|
665
|
|
666
|
return isEmpty;
|
667
|
}
|
668
|
|
669
|
|
670
|
/**
|
671
|
* Determines whether a given row in the table is empty. A row is empty if
|
672
|
* all five of its fields contain either null or "".
|
673
|
*
|
674
|
* @param rowIndex the index to the row in the table that is being checked
|
675
|
* @return true if the row is empty, else false
|
676
|
*/
|
677
|
boolean isEmptyRow(int rowIndex) {
|
678
|
boolean isEmpty = true;
|
679
|
String scope = (String) tableModel.getValueAt(rowIndex, 1);
|
680
|
String identifier = (String) tableModel.getValueAt(rowIndex, 2);
|
681
|
String revision = (String) tableModel.getValueAt(rowIndex, 3);
|
682
|
String documentType = (String) tableModel.getValueAt(rowIndex, 4);
|
683
|
String documentURL = (String) tableModel.getValueAt(rowIndex, 5);
|
684
|
|
685
|
isEmpty = isEmpty && ((scope == null) || (scope.equals("")));
|
686
|
isEmpty = isEmpty && ((identifier == null) || (identifier.equals("")));
|
687
|
isEmpty = isEmpty && ((revision == null) || (revision.equals("")));
|
688
|
isEmpty = isEmpty && ((documentType == null) || (documentType.equals("")));
|
689
|
isEmpty = isEmpty && ((documentURL == null) || (documentURL.equals("")));
|
690
|
|
691
|
return isEmpty;
|
692
|
}
|
693
|
|
694
|
|
695
|
/**
|
696
|
* Loads the Harvest List from a file. Parses the file using the inner class,
|
697
|
* HarvestListHandler, a SAX parser.
|
698
|
*
|
699
|
* @param harvestList the File to be loaded
|
700
|
* @throws ParserConfigurationException
|
701
|
*/
|
702
|
void loadHarvestList(File harvestList) throws ParserConfigurationException {
|
703
|
HarvestListHandler harvestListHandler = new HarvestListHandler();
|
704
|
FileInputStream fis;
|
705
|
InputStreamReader inputStreamReader;
|
706
|
boolean loadHarvestList = true;
|
707
|
boolean validateHarvestList = false;
|
708
|
|
709
|
try {
|
710
|
fis = new FileInputStream(harvestList);
|
711
|
inputStreamReader = new InputStreamReader(fis);
|
712
|
//System.out.println("Opened file successfully.");
|
713
|
harvestListHandler.runParser(this, inputStreamReader, schemaLocation,
|
714
|
loadHarvestList, validateHarvestList);
|
715
|
fis.close();
|
716
|
setTitle(title + ": " + harvestListFile.getName());
|
717
|
}
|
718
|
catch (SAXException e) {
|
719
|
System.out.println("Error parsing Harvest List: " + e.getMessage());
|
720
|
}
|
721
|
catch (ClassNotFoundException e) {
|
722
|
System.out.println("ClassNotFoundException: " + e.getMessage());
|
723
|
}
|
724
|
catch (IOException ioe) {
|
725
|
System.out.println("Error opening file: " + ioe.getMessage());
|
726
|
}
|
727
|
}
|
728
|
|
729
|
|
730
|
/**
|
731
|
* Loads properties from the .harvestListEditor file in the user's home
|
732
|
* directory.
|
733
|
*/
|
734
|
void loadProperties () {
|
735
|
String homedir = System.getProperty("user.home");
|
736
|
File propertiesFile = new File(homedir, ".harvestListEditor");
|
737
|
|
738
|
properties = new Properties();
|
739
|
|
740
|
if (propertiesFile.exists()) {
|
741
|
try {
|
742
|
properties.load(new FileInputStream(propertiesFile));
|
743
|
defaultHarvestList = properties.getProperty("defaultHarvestList");
|
744
|
defaultDocumentType = properties.getProperty("defaultDocumentType");
|
745
|
defaultDocumentURL = properties.getProperty("defaultDocumentURL");
|
746
|
defaultIdentifier = properties.getProperty("defaultIdentifier");
|
747
|
defaultRevision = properties.getProperty("defaultRevision");
|
748
|
defaultScope = properties.getProperty("defaultScope");
|
749
|
}
|
750
|
catch (IOException ioe) {
|
751
|
System.out.println("Error loading properties file: " +
|
752
|
ioe.getMessage());
|
753
|
}
|
754
|
}
|
755
|
}
|
756
|
|
757
|
|
758
|
/**
|
759
|
* Enables or disables buttons depending on the state of the currently
|
760
|
* selected row and the state of the clipboard.
|
761
|
*
|
762
|
* @param rowIndex the index of the currently selected row
|
763
|
*/
|
764
|
void manageButtons(int rowIndex) {
|
765
|
|
766
|
if (isEmptyRow(rowIndex)) {
|
767
|
// Selected row is empty, so disable cut and copy
|
768
|
cutButton.setEnabled(false);
|
769
|
copyButton.setEnabled(false);
|
770
|
}
|
771
|
else {
|
772
|
// Selected row is not empty, so enable cut and copy
|
773
|
cutButton.setEnabled(true);
|
774
|
copyButton.setEnabled(true);
|
775
|
}
|
776
|
|
777
|
if (isEmptyClipboard()) {
|
778
|
// Clipboard is empty, so disable paste
|
779
|
pasteButton.setEnabled(false);
|
780
|
}
|
781
|
else {
|
782
|
// Clipboard is not empty, so enable paste
|
783
|
pasteButton.setEnabled(true);
|
784
|
}
|
785
|
|
786
|
// Paste Defaults button is enabled whenever a row is selected
|
787
|
pasteDefaultsButton.setEnabled(true);
|
788
|
}
|
789
|
|
790
|
|
791
|
/**
|
792
|
* Pastes the clipboard values into the specified row.
|
793
|
*
|
794
|
* @param rowIndex the index of the row that is being pasted to
|
795
|
*/
|
796
|
void pasteRow(int rowIndex) {
|
797
|
tableModel.setValueAt(clipboardScope, rowIndex, 1);
|
798
|
tableModel.setValueAt(clipboardIdentifier, rowIndex, 2);
|
799
|
tableModel.setValueAt(clipboardRevision, rowIndex, 3);
|
800
|
tableModel.setValueAt(clipboardDocumentType, rowIndex, 4);
|
801
|
tableModel.setValueAt(clipboardDocumentURL, rowIndex, 5);
|
802
|
}
|
803
|
|
804
|
|
805
|
/**
|
806
|
* Pastes the default values into the specified row.
|
807
|
*
|
808
|
* @param rowIndex the index of the row that is being pasted to
|
809
|
*/
|
810
|
void pasteDefaultValues(int rowIndex) {
|
811
|
tableModel.setValueAt(defaultScope, rowIndex, 1);
|
812
|
tableModel.setValueAt(defaultIdentifier, rowIndex, 2);
|
813
|
tableModel.setValueAt(defaultRevision, rowIndex, 3);
|
814
|
tableModel.setValueAt(defaultDocumentType, rowIndex, 4);
|
815
|
tableModel.setValueAt(defaultDocumentURL, rowIndex, 5);
|
816
|
}
|
817
|
|
818
|
|
819
|
/**
|
820
|
* Dialog to determine whether user wants to save changes before proceeding.
|
821
|
*
|
822
|
* @return integer value that determines whether the user responded with
|
823
|
* "Yes", "No", or "Cancel"
|
824
|
*/
|
825
|
int saveChangesDialog () {
|
826
|
Object[] options = {"Yes", "No", "Cancel"};
|
827
|
int value;
|
828
|
|
829
|
value = JOptionPane.showOptionDialog(null,
|
830
|
"Save Changes?",
|
831
|
"Warning",
|
832
|
JOptionPane.DEFAULT_OPTION,
|
833
|
JOptionPane.WARNING_MESSAGE,
|
834
|
null,
|
835
|
options,
|
836
|
options[0]); // default option
|
837
|
return value;
|
838
|
}
|
839
|
|
840
|
|
841
|
/**
|
842
|
* Writes the contents of the table to file as XML.
|
843
|
*
|
844
|
* @param harvestList the File object to write to
|
845
|
*/
|
846
|
void writeFile(File harvestList) {
|
847
|
try {
|
848
|
PrintWriter out = new PrintWriter(new FileWriter(harvestList));
|
849
|
writeHarvestList(out);
|
850
|
}
|
851
|
catch (IOException ioe) {
|
852
|
System.out.println("IOException: " + ioe.getMessage());
|
853
|
}
|
854
|
}
|
855
|
|
856
|
|
857
|
/**
|
858
|
* Writes the contents of the table to a PrintWriter.
|
859
|
*
|
860
|
* @param out the PrintWriter to write the Harvest List to
|
861
|
*/
|
862
|
void writeHarvestList(PrintWriter out) {
|
863
|
out.println("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>");
|
864
|
out.println("");
|
865
|
out.println(
|
866
|
"<hrv:harvestList xmlns:hrv=\"eml://ecoinformatics.org/harvestList\" >");
|
867
|
|
868
|
for (int i = 0; i < numRows; i++) {
|
869
|
if (!isEmptyRow(i)) {
|
870
|
writeRow(out, i);
|
871
|
}
|
872
|
}
|
873
|
|
874
|
out.println("");
|
875
|
out.println("</hrv:harvestList>");
|
876
|
out.close();
|
877
|
}
|
878
|
|
879
|
|
880
|
/**
|
881
|
* Writes a row of the table to file. A row corresponds to a single
|
882
|
* <Document> element in the Harvest List.
|
883
|
*
|
884
|
* @param out the PrintWriter object for the file
|
885
|
* @param rowIndex the index of the table row that is being written to file
|
886
|
*/
|
887
|
void writeRow(PrintWriter out, int rowIndex) {
|
888
|
int indentLevel = 6;
|
889
|
String scope = (String) tableModel.getValueAt(rowIndex, 1);
|
890
|
String identifier = (String) tableModel.getValueAt(rowIndex, 2);
|
891
|
String revision = (String) tableModel.getValueAt(rowIndex, 3);
|
892
|
String documentType = (String) tableModel.getValueAt(rowIndex, 4);
|
893
|
String documentURL = (String) tableModel.getValueAt(rowIndex, 5);
|
894
|
|
895
|
out.println("");
|
896
|
out.println(" <document>");
|
897
|
out.println(" <docid>");
|
898
|
out.println(composeLine(indentLevel, "scope", scope));
|
899
|
out.println(composeLine(indentLevel, "identifier", identifier));
|
900
|
out.println(composeLine(indentLevel, "revision", revision));
|
901
|
out.println(" </docid>");
|
902
|
indentLevel = 4;
|
903
|
out.println(composeLine(indentLevel, "documentType", documentType));
|
904
|
out.println(composeLine(indentLevel, "documentURL", documentURL));
|
905
|
out.println(" </document>");
|
906
|
}
|
907
|
|
908
|
|
909
|
/*
|
910
|
* Inner class: HarvestListTableModel
|
911
|
*/
|
912
|
class HarvestListTableModel extends AbstractTableModel {
|
913
|
final boolean DEBUG = false;
|
914
|
// Column names for the JTable
|
915
|
private String[] columnNames = {
|
916
|
"Row #",
|
917
|
"Scope",
|
918
|
"Identifier",
|
919
|
"Revision",
|
920
|
"Document Type",
|
921
|
"Document URL"
|
922
|
};
|
923
|
|
924
|
private Object[][] data = new Object[numRows][numColumns];
|
925
|
|
926
|
public int getColumnCount() {
|
927
|
return columnNames.length;
|
928
|
}
|
929
|
|
930
|
public int getRowCount() {
|
931
|
return data.length;
|
932
|
}
|
933
|
|
934
|
public String getColumnName(int col) {
|
935
|
return columnNames[col];
|
936
|
}
|
937
|
|
938
|
public Object getValueAt(int row, int col) {
|
939
|
return data[row][col];
|
940
|
}
|
941
|
|
942
|
/*
|
943
|
* JTable uses this method to determine the default renderer/
|
944
|
* editor for each cell. If we didn't implement this method,
|
945
|
* then the last column would contain text ("true"/"false"),
|
946
|
* rather than a check box.
|
947
|
*/
|
948
|
public Class getColumnClass(int c) {
|
949
|
return getValueAt(0, c).getClass();
|
950
|
}
|
951
|
|
952
|
/*
|
953
|
* Don't need to implement this method unless your table's
|
954
|
* editable.
|
955
|
*/
|
956
|
public boolean isCellEditable(int row, int col) {
|
957
|
//Note that the data/cell address is constant,
|
958
|
//no matter where the cell appears onscreen.
|
959
|
if (col < 1) {
|
960
|
return false;
|
961
|
} else {
|
962
|
return true;
|
963
|
}
|
964
|
}
|
965
|
|
966
|
/*
|
967
|
* Don't need to implement this method unless your table's
|
968
|
* data can change.
|
969
|
*/
|
970
|
public void setValueAt(Object value, int row, int col) {
|
971
|
if (DEBUG) {
|
972
|
System.out.println("Setting value at " + row + "," + col
|
973
|
+ " to " + value
|
974
|
+ " (an instance of "
|
975
|
+ value.getClass() + ")");
|
976
|
}
|
977
|
|
978
|
data[row][col] = value;
|
979
|
fireTableCellUpdated(row, col);
|
980
|
|
981
|
if (DEBUG) {
|
982
|
System.out.println("New value of data:");
|
983
|
printDebugData();
|
984
|
}
|
985
|
}
|
986
|
|
987
|
private void printDebugData() {
|
988
|
int numRows = getRowCount();
|
989
|
int numCols = getColumnCount();
|
990
|
|
991
|
for (int i=0; i < numRows; i++) {
|
992
|
System.out.print(" row " + i + ":");
|
993
|
for (int j=0; j < numCols; j++) {
|
994
|
System.out.print(" " + data[i][j]);
|
995
|
}
|
996
|
System.out.println();
|
997
|
}
|
998
|
System.out.println("--------------------------");
|
999
|
}
|
1000
|
}
|
1001
|
|
1002
|
/**
|
1003
|
* This inner class extends DefaultHandler. It parses the Harvest List file,
|
1004
|
* writing a new row to the table every time it encounters a </Document>
|
1005
|
* end tag.
|
1006
|
*/
|
1007
|
class HarvestListHandler extends DefaultHandler implements ErrorHandler {
|
1008
|
|
1009
|
public String scope;
|
1010
|
public int identifier;
|
1011
|
public String identifierString;
|
1012
|
public String documentType;
|
1013
|
private HarvestListEditor harvestListEditor;
|
1014
|
boolean loadHarvestList;
|
1015
|
public int revision;
|
1016
|
public String revisionString;
|
1017
|
private int rowIndex = 0;
|
1018
|
public String documentURL;
|
1019
|
private String currentQname;
|
1020
|
public final static String DEFAULT_PARSER =
|
1021
|
"org.apache.xerces.parsers.SAXParser";
|
1022
|
private boolean schemaValidate = true;
|
1023
|
private boolean validateHarvestList;
|
1024
|
|
1025
|
|
1026
|
/**
|
1027
|
* This method is called for any plain text within an element.
|
1028
|
* It parses the value for any of the following elements:
|
1029
|
* <scope>, <identifier>, <revision>, <documentType>, <documentURL>
|
1030
|
*
|
1031
|
* @param ch the character array holding the parsed text
|
1032
|
* @param start the start index
|
1033
|
* @param length the text length
|
1034
|
*
|
1035
|
*/
|
1036
|
public void characters (char ch[], int start, int length) {
|
1037
|
String s = new String(ch, start, length);
|
1038
|
|
1039
|
if (length > 0) {
|
1040
|
if (currentQname.equals("scope")) {
|
1041
|
scope += s;
|
1042
|
}
|
1043
|
else if (currentQname.equals("identifier")) {
|
1044
|
identifierString += s;
|
1045
|
}
|
1046
|
else if (currentQname.equals("revision")) {
|
1047
|
revisionString += s;
|
1048
|
}
|
1049
|
else if (currentQname.equals("documentType")) {
|
1050
|
documentType += s;
|
1051
|
}
|
1052
|
else if (currentQname.equals("documentURL")) {
|
1053
|
documentURL += s;
|
1054
|
}
|
1055
|
}
|
1056
|
}
|
1057
|
|
1058
|
|
1059
|
/**
|
1060
|
* Handles an end-of-document event.
|
1061
|
*/
|
1062
|
public void endDocument () {
|
1063
|
}
|
1064
|
|
1065
|
|
1066
|
/**
|
1067
|
* Handles an end-of-element event. If the end tag is </Document>, then
|
1068
|
* creates a new HarvestDocument object and pushes it to the document
|
1069
|
* list.
|
1070
|
*
|
1071
|
* @param uri
|
1072
|
* @param localname
|
1073
|
* @param qname
|
1074
|
*/
|
1075
|
public void endElement(String uri,
|
1076
|
String localname,
|
1077
|
String qname) {
|
1078
|
|
1079
|
HarvestDocument harvestDocument;
|
1080
|
|
1081
|
if (qname.equals("identifier")) {
|
1082
|
identifier = Integer.parseInt(identifierString);
|
1083
|
}
|
1084
|
else if (qname.equals("revision")) {
|
1085
|
revision = Integer.parseInt(revisionString);
|
1086
|
}
|
1087
|
else if (qname.equals("document")) {
|
1088
|
if (loadHarvestList) {
|
1089
|
harvestListEditor.addRow(rowIndex, scope, identifierString,
|
1090
|
revisionString, documentType, documentURL);
|
1091
|
}
|
1092
|
|
1093
|
rowIndex++;
|
1094
|
}
|
1095
|
|
1096
|
currentQname = "";
|
1097
|
}
|
1098
|
|
1099
|
|
1100
|
/**
|
1101
|
* Method for handling errors during a parse
|
1102
|
*
|
1103
|
* @param exception The parsing error
|
1104
|
* @exception SAXException Description of Exception
|
1105
|
*/
|
1106
|
public void error(SAXParseException e) throws SAXParseException {
|
1107
|
System.out.println("SAXParseException: " + e.getMessage());
|
1108
|
throw e;
|
1109
|
}
|
1110
|
|
1111
|
|
1112
|
/**
|
1113
|
* Run the validating parser
|
1114
|
*
|
1115
|
* @param xml the xml stream to be validated
|
1116
|
* @schemaLocation relative path the to XML Schema file, e.g. "."
|
1117
|
* @exception IOException thrown when test files can't be opened
|
1118
|
* @exception ClassNotFoundException thrown when SAX Parser class not found
|
1119
|
* @exception SAXException
|
1120
|
* @exception SAXParserException
|
1121
|
*/
|
1122
|
public void runParser(HarvestListEditor harvestListEditor,
|
1123
|
Reader xml,
|
1124
|
String schemaLocation,
|
1125
|
boolean loadHarvestList,
|
1126
|
boolean validateHarvestList)
|
1127
|
throws IOException, ClassNotFoundException,
|
1128
|
SAXException, SAXParseException {
|
1129
|
|
1130
|
// Get an instance of the parser
|
1131
|
XMLReader parser;
|
1132
|
|
1133
|
this.harvestListEditor = harvestListEditor;
|
1134
|
this.loadHarvestList = loadHarvestList;
|
1135
|
this.validateHarvestList = validateHarvestList;
|
1136
|
this.rowIndex = 0;
|
1137
|
|
1138
|
parser = XMLReaderFactory.createXMLReader(DEFAULT_PARSER);
|
1139
|
// Set Handlers in the parser
|
1140
|
parser.setContentHandler((ContentHandler)this);
|
1141
|
parser.setErrorHandler((ErrorHandler)this);
|
1142
|
parser.setFeature("http://xml.org/sax/features/namespaces", true);
|
1143
|
parser.setFeature("http://xml.org/sax/features/namespace-prefixes", true);
|
1144
|
parser.setFeature("http://xml.org/sax/features/validation", true);
|
1145
|
parser.setProperty(
|
1146
|
"http://apache.org/xml/properties/schema/external-schemaLocation",
|
1147
|
schemaLocation);
|
1148
|
|
1149
|
if (schemaValidate) {
|
1150
|
parser.setFeature("http://apache.org/xml/features/validation/schema",
|
1151
|
true);
|
1152
|
}
|
1153
|
|
1154
|
// Parse the document
|
1155
|
parser.parse(new InputSource(xml));
|
1156
|
}
|
1157
|
|
1158
|
|
1159
|
/**
|
1160
|
* Handles a start-of-document event.
|
1161
|
*/
|
1162
|
public void startDocument () {
|
1163
|
//System.out.println("Started parsing Harvest List");
|
1164
|
}
|
1165
|
|
1166
|
|
1167
|
/**
|
1168
|
* Handles a start-of-element event.
|
1169
|
*
|
1170
|
* @param uri
|
1171
|
* @param localname
|
1172
|
* @param qname
|
1173
|
* @param attributes
|
1174
|
*/
|
1175
|
public void startElement(String uri,
|
1176
|
String localname,
|
1177
|
String qname,
|
1178
|
Attributes attributes) {
|
1179
|
|
1180
|
currentQname = qname;
|
1181
|
|
1182
|
if (qname.equals("scope")) {
|
1183
|
scope = "";
|
1184
|
}
|
1185
|
else if (qname.equals("identifier")) {
|
1186
|
identifierString = "";
|
1187
|
}
|
1188
|
else if (qname.equals("revision")) {
|
1189
|
revisionString = "";
|
1190
|
}
|
1191
|
else if (qname.equals("documentType")) {
|
1192
|
documentType = "";
|
1193
|
}
|
1194
|
else if (qname.equals("documentURL")) {
|
1195
|
documentURL = "";
|
1196
|
}
|
1197
|
}
|
1198
|
}
|
1199
|
}
|