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2177
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costa
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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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* '$Author$'
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* '$Date$'
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* '$Revision$'
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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 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.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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import edu.ucsb.nceas.metacat.harvesterClient.Harvester;
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import edu.ucsb.nceas.utilities.Options;
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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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// Column names for the JTable
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String[] columnNames = {
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"Scope",
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"Identifier",
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"Revision",
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"Document Type",
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"Document URL"
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};
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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;
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String defaultDocumentURL;
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String defaultHarvestList;
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String defaultIdentifier;
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String defaultRevision;
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String defaultScope;
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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 = 5;
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final int numRows = 300;
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Options options;
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boolean optionsTest = false; // true only for JUnit testing
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JButton pasteButton;
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JButton pasteDefaultsButton;
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Object[][] rowData = new Object[numRows][numColumns];
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private String schemaLocation =
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"eml://ecoinformatics.org/harvestList ../../lib/harvester/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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// 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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/**
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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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// Load default values from the metacat.properties file
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Harvester.loadOptions(optionsTest);
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options = Harvester.options;
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defaultHarvestList = options.getOption("defaultHarvestList");
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defaultDocumentType = options.getOption("defaultDocumentType");
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defaultDocumentURL = options.getOption("defaultDocumentURL");
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defaultIdentifier = options.getOption("defaultIdentifier");
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defaultRevision = options.getOption("defaultRevision");
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defaultScope = options.getOption("defaultScope");
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System.out.println("defaultHarvestList: " + defaultHarvestList);
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System.out.println("defaultDocumentType: " + defaultDocumentType);
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System.out.println("defaultDocumentURL: " + defaultDocumentURL);
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System.out.println("defaultIdentifier: " + defaultIdentifier);
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System.out.println("defaultRevision: " + defaultRevision);
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System.out.println("defaultScope: " + defaultScope);
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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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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(rowData, columnNames);
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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(200);
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tableColumn = table.getColumnModel().getColumn(1);
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tableColumn.setPreferredWidth(50);
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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(300);
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tableColumn = table.getColumnModel().getColumn(4);
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tableColumn.setPreferredWidth(300);
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table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
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tableModel = table.getModel();
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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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}
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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("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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365 |
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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
|
368 |
|
|
* @param documentURL the document URL
|
369 |
|
|
*/
|
370 |
|
|
void addRow(int rowIndex, String scope, String identifier, String revision,
|
371 |
|
|
String documentType, String documentURL) {
|
372 |
|
|
tableModel.setValueAt(scope, rowIndex, 0);
|
373 |
|
|
tableModel.setValueAt(identifier, rowIndex, 1);
|
374 |
|
|
tableModel.setValueAt(revision, rowIndex, 2);
|
375 |
|
|
tableModel.setValueAt(documentType, rowIndex, 3);
|
376 |
|
|
tableModel.setValueAt(documentURL, rowIndex, 4);
|
377 |
|
|
}
|
378 |
|
|
|
379 |
|
|
|
380 |
|
|
/**
|
381 |
|
|
* Composes a single tag line to be written in the Harvest List.
|
382 |
|
|
*
|
383 |
|
|
* @param indentLevel the number of spaces to begin the line with
|
384 |
|
|
* @param tag the tag name
|
385 |
|
|
* @param text the text to insert within the begin and end tags
|
386 |
|
|
* @return line the composed line
|
387 |
|
|
*/
|
388 |
|
|
String composeLine(int indentLevel, String tag, String text) {
|
389 |
|
|
String line = "";
|
390 |
|
|
|
391 |
|
|
for (int i = 0; i < indentLevel; i++) {
|
392 |
|
|
line += " ";
|
393 |
|
|
}
|
394 |
|
|
|
395 |
|
|
line += "<" + tag + ">";
|
396 |
|
|
line += text;
|
397 |
|
|
line += "</" + tag + ">";
|
398 |
|
|
|
399 |
|
|
return line;
|
400 |
|
|
}
|
401 |
|
|
|
402 |
|
|
|
403 |
|
|
/**
|
404 |
|
|
* Clears all rows in the table, setting all values to null.
|
405 |
|
|
*/
|
406 |
|
|
void clearHarvestList() {
|
407 |
|
|
for (int rowIndex = 0; rowIndex < numRows; rowIndex++) {
|
408 |
|
|
clearRow(rowIndex);
|
409 |
|
|
}
|
410 |
|
|
}
|
411 |
|
|
|
412 |
|
|
|
413 |
|
|
/**
|
414 |
|
|
* Clears a single row in the tables, setting all five fields to null.
|
415 |
|
|
*
|
416 |
|
|
* @param rowIndex the index to the table row to be cleared
|
417 |
|
|
*/
|
418 |
|
|
void clearRow(int rowIndex) {
|
419 |
|
|
final String nil = null;
|
420 |
|
|
|
421 |
|
|
tableModel.setValueAt(nil, rowIndex, 0);
|
422 |
|
|
tableModel.setValueAt(nil, rowIndex, 1);
|
423 |
|
|
tableModel.setValueAt(nil, rowIndex, 2);
|
424 |
|
|
tableModel.setValueAt(nil, rowIndex, 3);
|
425 |
|
|
tableModel.setValueAt(nil, rowIndex, 4);
|
426 |
|
|
}
|
427 |
|
|
|
428 |
|
|
|
429 |
|
|
/**
|
430 |
|
|
* Copies the values in a given table row to the clipboard.
|
431 |
|
|
*
|
432 |
|
|
* @param rowIndex the index of the table row to be copied
|
433 |
|
|
*/
|
434 |
|
|
void copyRow(int rowIndex) {
|
435 |
|
|
clipboardScope = (String) tableModel.getValueAt(rowIndex, 0);
|
436 |
|
|
clipboardIdentifier = (String) tableModel.getValueAt(rowIndex, 1);
|
437 |
|
|
clipboardRevision = (String) tableModel.getValueAt(rowIndex, 2);
|
438 |
|
|
clipboardDocumentType = (String) tableModel.getValueAt(rowIndex, 3);
|
439 |
|
|
clipboardDocumentURL = (String) tableModel.getValueAt(rowIndex, 4);
|
440 |
|
|
}
|
441 |
|
|
|
442 |
|
|
|
443 |
|
|
/**
|
444 |
|
|
* Cuts a row from the table. The row is copied to the clipboard and then
|
445 |
|
|
* cleared.
|
446 |
|
|
*
|
447 |
|
|
* @param rowIndex the index of the table row to be copied
|
448 |
|
|
*/
|
449 |
|
|
void cutRow(int rowIndex) {
|
450 |
|
|
copyRow(rowIndex);
|
451 |
|
|
clearRow(rowIndex);
|
452 |
|
|
}
|
453 |
|
|
|
454 |
|
|
|
455 |
|
|
/**
|
456 |
|
|
* Exit from the Harvest List Editor. Prompt to save changes if appropriate.
|
457 |
|
|
*/
|
458 |
|
|
void fileExit() {
|
459 |
|
|
int value;
|
460 |
|
|
|
461 |
|
|
if (harvestListHasChanged) {
|
462 |
|
|
value = saveChangesDialog();
|
463 |
|
|
|
464 |
|
|
if (value == JOptionPane.YES_OPTION) {
|
465 |
|
|
try {
|
466 |
|
|
// Save the changes then exit
|
467 |
|
|
//
|
468 |
|
|
fileSave();
|
469 |
|
|
System.exit(0);
|
470 |
|
|
}
|
471 |
|
|
catch (Exception exception) {
|
472 |
|
|
exception.printStackTrace();
|
473 |
|
|
}
|
474 |
|
|
}
|
475 |
|
|
else if (value == JOptionPane.NO_OPTION) {
|
476 |
|
|
// Exit without saving changes
|
477 |
|
|
System.exit(0);
|
478 |
|
|
}
|
479 |
|
|
}
|
480 |
|
|
else {
|
481 |
|
|
System.exit(0);
|
482 |
|
|
}
|
483 |
|
|
}
|
484 |
|
|
|
485 |
|
|
|
486 |
|
|
/**
|
487 |
|
|
* Replace the current Harvest List with an empty Harvest List. Prompt to save
|
488 |
|
|
* changes if appropriate.
|
489 |
|
|
*/
|
490 |
|
|
void fileNew() {
|
491 |
|
|
int value;
|
492 |
|
|
|
493 |
|
|
if (harvestListHasChanged) {
|
494 |
|
|
value = saveChangesDialog();
|
495 |
|
|
|
496 |
|
|
if (value == JOptionPane.YES_OPTION) {
|
497 |
|
|
try {
|
498 |
|
|
fileSave();
|
499 |
|
|
}
|
500 |
|
|
catch (Exception exception) {
|
501 |
|
|
exception.printStackTrace();
|
502 |
|
|
}
|
503 |
|
|
}
|
504 |
|
|
else if (value == JOptionPane.CANCEL_OPTION) {
|
505 |
|
|
return;
|
506 |
|
|
}
|
507 |
|
|
}
|
508 |
|
|
|
509 |
|
|
clearHarvestList();
|
510 |
|
|
harvestListFile = null;
|
511 |
|
|
saveMenuItem.setEnabled(false);
|
512 |
|
|
harvestListHasChanged = false;
|
513 |
|
|
}
|
514 |
|
|
|
515 |
|
|
|
516 |
|
|
/**
|
517 |
|
|
* Opens a file dialog to load a Harvest List. Prompts to save changes to the
|
518 |
|
|
* current Harvest List if appropriate.
|
519 |
|
|
*/
|
520 |
|
|
void fileOpen() {
|
521 |
|
|
int value;
|
522 |
|
|
|
523 |
|
|
if (harvestListHasChanged) {
|
524 |
|
|
value = saveChangesDialog();
|
525 |
|
|
|
526 |
|
|
if (value == JOptionPane.YES_OPTION) {
|
527 |
|
|
try {
|
528 |
|
|
fileSave();
|
529 |
|
|
}
|
530 |
|
|
catch (Exception exception) {
|
531 |
|
|
exception.printStackTrace();
|
532 |
|
|
}
|
533 |
|
|
}
|
534 |
|
|
else if (value == JOptionPane.CANCEL_OPTION) {
|
535 |
|
|
return;
|
536 |
|
|
}
|
537 |
|
|
}
|
538 |
|
|
|
539 |
|
|
value = fileChooser.showOpenDialog(HarvestListEditor.this);
|
540 |
|
|
|
541 |
|
|
if (value == JFileChooser.APPROVE_OPTION) {
|
542 |
|
|
harvestListFile = fileChooser.getSelectedFile();
|
543 |
|
|
try {
|
544 |
|
|
clearHarvestList();
|
545 |
|
|
loadHarvestList(harvestListFile);
|
546 |
|
|
}
|
547 |
|
|
catch (ParserConfigurationException e) {
|
548 |
|
|
System.out.println("Error parsing Harvest List: " + e.getMessage());
|
549 |
|
|
}
|
550 |
|
|
harvestListHasChanged = false;
|
551 |
|
|
saveMenuItem.setEnabled(true);
|
552 |
|
|
}
|
553 |
|
|
}
|
554 |
|
|
|
555 |
|
|
|
556 |
|
|
/**
|
557 |
|
|
* Save the current Harvest List to disk.
|
558 |
|
|
*/
|
559 |
|
|
void fileSave() {
|
560 |
|
|
if (harvestListFile != null) {
|
561 |
|
|
writeFile(harvestListFile);
|
562 |
|
|
harvestListHasChanged = false;
|
563 |
|
|
}
|
564 |
|
|
else {
|
565 |
|
|
System.out.println("No action taken");
|
566 |
|
|
}
|
567 |
|
|
}
|
568 |
|
|
|
569 |
|
|
|
570 |
|
|
/**
|
571 |
|
|
* Save the current Harvest List as a potentially different file name.
|
572 |
|
|
*/
|
573 |
|
|
void fileSaveAs() {
|
574 |
|
|
int returnVal;
|
575 |
|
|
|
576 |
|
|
returnVal = fileChooser.showOpenDialog(HarvestListEditor.this);
|
577 |
|
|
|
578 |
|
|
if (returnVal == JFileChooser.APPROVE_OPTION) {
|
579 |
|
|
harvestListFile = fileChooser.getSelectedFile();
|
580 |
|
|
writeFile(harvestListFile);
|
581 |
|
|
saveMenuItem.setEnabled(true);
|
582 |
|
|
harvestListHasChanged = false;
|
583 |
|
|
}
|
584 |
|
|
}
|
585 |
|
|
|
586 |
|
|
|
587 |
|
|
/**
|
588 |
|
|
* Determines whether the clipboard is currently empty. The clipboard is
|
589 |
|
|
* empty if all five of the fields are empty.
|
590 |
|
|
*
|
591 |
|
|
* @return true if the clipboard is empty, else false
|
592 |
|
|
*/
|
593 |
|
|
boolean isEmptyClipboard() {
|
594 |
|
|
boolean isEmpty = true;
|
595 |
|
|
|
596 |
|
|
isEmpty = isEmpty && (clipboardScope.equals(""));
|
597 |
|
|
isEmpty = isEmpty && (clipboardIdentifier.equals(""));
|
598 |
|
|
isEmpty = isEmpty && (clipboardRevision.equals(""));
|
599 |
|
|
isEmpty = isEmpty && (clipboardDocumentType.equals(""));
|
600 |
|
|
isEmpty = isEmpty && (clipboardDocumentURL.equals(""));
|
601 |
|
|
|
602 |
|
|
return isEmpty;
|
603 |
|
|
}
|
604 |
|
|
|
605 |
|
|
|
606 |
|
|
/**
|
607 |
|
|
* Determines whether a given row in the table is empty. A row is empty if
|
608 |
|
|
* all five of its fields contain either null or "".
|
609 |
|
|
*
|
610 |
|
|
* @param rowIndex the index to the row in the table that is being checked
|
611 |
|
|
* @return true if the row is empty, else false
|
612 |
|
|
*/
|
613 |
|
|
boolean isEmptyRow(int rowIndex) {
|
614 |
|
|
boolean isEmpty = true;
|
615 |
|
|
String scope = (String) tableModel.getValueAt(rowIndex, 0);
|
616 |
|
|
String identifier = (String) tableModel.getValueAt(rowIndex, 1);
|
617 |
|
|
String revision = (String) tableModel.getValueAt(rowIndex, 2);
|
618 |
|
|
String documentType = (String) tableModel.getValueAt(rowIndex, 3);
|
619 |
|
|
String documentURL = (String) tableModel.getValueAt(rowIndex, 4);
|
620 |
|
|
|
621 |
|
|
isEmpty = isEmpty && ((scope == null) || (scope.equals("")));
|
622 |
|
|
isEmpty = isEmpty && ((identifier == null) || (identifier.equals("")));
|
623 |
|
|
isEmpty = isEmpty && ((revision == null) || (revision.equals("")));
|
624 |
|
|
isEmpty = isEmpty && ((documentType == null) || (documentType.equals("")));
|
625 |
|
|
isEmpty = isEmpty && ((documentURL == null) || (documentURL.equals("")));
|
626 |
|
|
|
627 |
|
|
return isEmpty;
|
628 |
|
|
}
|
629 |
|
|
|
630 |
|
|
|
631 |
|
|
/**
|
632 |
|
|
* Loads the Harvest List from a file. Parses the file using the inner class,
|
633 |
|
|
* HarvestListHandler, a SAX parser.
|
634 |
|
|
*
|
635 |
|
|
* @param harvestList the File to be loaded
|
636 |
|
|
* @throws ParserConfigurationException
|
637 |
|
|
*/
|
638 |
|
|
void loadHarvestList(File harvestList) throws ParserConfigurationException {
|
639 |
|
|
HarvestListHandler harvestListHandler = new HarvestListHandler();
|
640 |
|
|
FileInputStream fis;
|
641 |
|
|
InputStreamReader inputStreamReader;
|
642 |
|
|
|
643 |
|
|
try {
|
644 |
|
|
fis = new FileInputStream(harvestList);
|
645 |
|
|
inputStreamReader = new InputStreamReader(fis);
|
646 |
|
|
System.out.println("Opened file successfully.");
|
647 |
|
|
harvestListHandler.runParser(this, inputStreamReader, schemaLocation);
|
648 |
|
|
fis.close();
|
649 |
|
|
}
|
650 |
|
|
catch (SAXException e) {
|
651 |
|
|
System.out.println("Error parsing Harvest List: " + e.getMessage());
|
652 |
|
|
}
|
653 |
|
|
catch (ClassNotFoundException e) {
|
654 |
|
|
System.out.println("ClassNotFoundException: " + e.getMessage());
|
655 |
|
|
}
|
656 |
|
|
catch (IOException ioe) {
|
657 |
|
|
System.out.println("Error opening file: " + ioe.getMessage());
|
658 |
|
|
}
|
659 |
|
|
}
|
660 |
|
|
|
661 |
|
|
|
662 |
|
|
/**
|
663 |
|
|
* Enables or disables buttons depending on the state of the currently
|
664 |
|
|
* selected row and the state of the clipboard.
|
665 |
|
|
*
|
666 |
|
|
* @param rowIndex the index of the currently selected row
|
667 |
|
|
*/
|
668 |
|
|
void manageButtons(int rowIndex) {
|
669 |
|
|
|
670 |
|
|
if (isEmptyRow(rowIndex)) {
|
671 |
|
|
// Selected row is empty, so disable cut and copy
|
672 |
|
|
cutButton.setEnabled(false);
|
673 |
|
|
copyButton.setEnabled(false);
|
674 |
|
|
}
|
675 |
|
|
else {
|
676 |
|
|
// Selected row is not empty, so enable cut and copy
|
677 |
|
|
cutButton.setEnabled(true);
|
678 |
|
|
copyButton.setEnabled(true);
|
679 |
|
|
}
|
680 |
|
|
|
681 |
|
|
if (isEmptyClipboard()) {
|
682 |
|
|
// Clipboard is empty, so disable paste
|
683 |
|
|
pasteButton.setEnabled(false);
|
684 |
|
|
}
|
685 |
|
|
else {
|
686 |
|
|
// Clipboard is not empty, so enable paste
|
687 |
|
|
pasteButton.setEnabled(true);
|
688 |
|
|
}
|
689 |
|
|
|
690 |
|
|
// Paste Defaults button is enabled whenever a row is selected
|
691 |
|
|
pasteDefaultsButton.setEnabled(true);
|
692 |
|
|
}
|
693 |
|
|
|
694 |
|
|
|
695 |
|
|
/**
|
696 |
|
|
* Pastes the clipboard values into the specified row.
|
697 |
|
|
*
|
698 |
|
|
* @param rowIndex the index of the row that is being pasted to
|
699 |
|
|
*/
|
700 |
|
|
void pasteRow(int rowIndex) {
|
701 |
|
|
tableModel.setValueAt(clipboardScope, rowIndex, 0);
|
702 |
|
|
tableModel.setValueAt(clipboardIdentifier, rowIndex, 1);
|
703 |
|
|
tableModel.setValueAt(clipboardRevision, rowIndex, 2);
|
704 |
|
|
tableModel.setValueAt(clipboardDocumentType, rowIndex, 3);
|
705 |
|
|
tableModel.setValueAt(clipboardDocumentURL, rowIndex, 4);
|
706 |
|
|
}
|
707 |
|
|
|
708 |
|
|
|
709 |
|
|
/**
|
710 |
|
|
* Pastes the default values into the specified row.
|
711 |
|
|
*
|
712 |
|
|
* @param rowIndex the index of the row that is being pasted to
|
713 |
|
|
*/
|
714 |
|
|
void pasteDefaultValues(int rowIndex) {
|
715 |
|
|
tableModel.setValueAt(defaultScope, rowIndex, 0);
|
716 |
|
|
tableModel.setValueAt(defaultIdentifier, rowIndex, 1);
|
717 |
|
|
tableModel.setValueAt(defaultRevision, rowIndex, 2);
|
718 |
|
|
tableModel.setValueAt(defaultDocumentType, rowIndex, 3);
|
719 |
|
|
tableModel.setValueAt(defaultDocumentURL, rowIndex, 4);
|
720 |
|
|
}
|
721 |
|
|
|
722 |
|
|
|
723 |
|
|
/**
|
724 |
|
|
* Dialog to determine whether user wants to save changes before proceeding.
|
725 |
|
|
*
|
726 |
|
|
* @return integer value that determines whether the user responded with
|
727 |
|
|
* "Yes", "No", or "Cancel"
|
728 |
|
|
*/
|
729 |
|
|
int saveChangesDialog () {
|
730 |
|
|
Object[] options = {"Yes", "No", "Cancel"};
|
731 |
|
|
int value;
|
732 |
|
|
|
733 |
|
|
value = JOptionPane.showOptionDialog(null,
|
734 |
|
|
"Save Changes?",
|
735 |
|
|
"Warning",
|
736 |
|
|
JOptionPane.DEFAULT_OPTION,
|
737 |
|
|
JOptionPane.WARNING_MESSAGE,
|
738 |
|
|
null,
|
739 |
|
|
options,
|
740 |
|
|
options[0]); // default option
|
741 |
|
|
return value;
|
742 |
|
|
}
|
743 |
|
|
|
744 |
|
|
|
745 |
|
|
/**
|
746 |
|
|
* Writes the contents of the table to file as XML.
|
747 |
|
|
*
|
748 |
|
|
* @param harvestList the File object to write to
|
749 |
|
|
*/
|
750 |
|
|
void writeFile(File harvestList) {
|
751 |
|
|
try {
|
752 |
|
|
PrintWriter out = new PrintWriter(new FileWriter(harvestList));
|
753 |
|
|
out.println("<?xml version=\"1.0\" encoding=\"UTF-8\" ?>");
|
754 |
|
|
out.println("");
|
755 |
|
|
out.println(
|
756 |
|
|
"<hrv:harvestList xmlns:hrv=\"eml://ecoinformatics.org/harvestList\" >");
|
757 |
|
|
|
758 |
|
|
for (int i = 0; i < numRows; i++) {
|
759 |
|
|
if (!isEmptyRow(i)) {
|
760 |
|
|
writeRow(out, i);
|
761 |
|
|
}
|
762 |
|
|
}
|
763 |
|
|
|
764 |
|
|
out.println("");
|
765 |
|
|
out.println("</hrv:harvestList>");
|
766 |
|
|
out.close();
|
767 |
|
|
}
|
768 |
|
|
catch (IOException ioe) {
|
769 |
|
|
System.out.println("IOException: " + ioe.getMessage());
|
770 |
|
|
}
|
771 |
|
|
}
|
772 |
|
|
|
773 |
|
|
|
774 |
|
|
/**
|
775 |
|
|
* Writes a row of the table to file. A row corresponds to a single
|
776 |
|
|
* <Document> element in the Harvest List.
|
777 |
|
|
*
|
778 |
|
|
* @param out the PrintWriter object for the file
|
779 |
|
|
* @param rowIndex the index of the table row that is being written to file
|
780 |
|
|
*/
|
781 |
|
|
void writeRow(PrintWriter out, int rowIndex) {
|
782 |
|
|
int indentLevel = 6;
|
783 |
|
|
String scope = (String) tableModel.getValueAt(rowIndex, 0);
|
784 |
|
|
String identifier = (String) tableModel.getValueAt(rowIndex, 1);
|
785 |
|
|
String revision = (String) tableModel.getValueAt(rowIndex, 2);
|
786 |
|
|
String documentType = (String) tableModel.getValueAt(rowIndex, 3);
|
787 |
|
|
String documentURL = (String) tableModel.getValueAt(rowIndex, 4);
|
788 |
|
|
|
789 |
|
|
out.println("");
|
790 |
|
|
out.println(" <document>");
|
791 |
|
|
out.println(" <docid>");
|
792 |
|
|
out.println(composeLine(indentLevel, "scope", scope));
|
793 |
|
|
out.println(composeLine(indentLevel, "identifier", identifier));
|
794 |
|
|
out.println(composeLine(indentLevel, "revision", revision));
|
795 |
|
|
out.println(" </docid>");
|
796 |
|
|
indentLevel = 4;
|
797 |
|
|
out.println(composeLine(indentLevel, "documentType", documentType));
|
798 |
|
|
out.println(composeLine(indentLevel, "documentURL", documentURL));
|
799 |
|
|
out.println(" </document>");
|
800 |
|
|
}
|
801 |
|
|
|
802 |
|
|
|
803 |
|
|
/**
|
804 |
|
|
* This inner class extends DefaultHandler. It parses the Harvest List file,
|
805 |
|
|
* writing a new row to the table every time it encounters a </Document>
|
806 |
|
|
* end tag.
|
807 |
|
|
*/
|
808 |
|
|
class HarvestListHandler extends DefaultHandler implements ErrorHandler {
|
809 |
|
|
|
810 |
|
|
public String scope;
|
811 |
|
|
public int identifier;
|
812 |
|
|
public String identifierString;
|
813 |
|
|
public String documentType;
|
814 |
|
|
private HarvestListEditor harvestListEditor;
|
815 |
|
|
public int revision;
|
816 |
|
|
public String revisionString;
|
817 |
|
|
private int rowIndex = 0;
|
818 |
|
|
public String documentURL;
|
819 |
|
|
private String currentQname;
|
820 |
|
|
public final static String DEFAULT_PARSER =
|
821 |
|
|
"org.apache.xerces.parsers.SAXParser";
|
822 |
|
|
private boolean schemaValidate = true;
|
823 |
|
|
|
824 |
|
|
|
825 |
|
|
/**
|
826 |
|
|
* This method is called for any plain text within an element.
|
827 |
|
|
* It parses the value for any of the following elements:
|
828 |
|
|
* <scope>, <identifier>, <revision>, <documentType>, <documentURL>
|
829 |
|
|
*
|
830 |
|
|
* @param ch the character array holding the parsed text
|
831 |
|
|
* @param start the start index
|
832 |
|
|
* @param length the text length
|
833 |
|
|
*
|
834 |
|
|
*/
|
835 |
|
|
public void characters (char ch[], int start, int length) {
|
836 |
|
|
String s = new String(ch, start, length);
|
837 |
|
|
|
838 |
|
|
if (length > 0) {
|
839 |
|
|
if (currentQname.equals("scope")) {
|
840 |
|
|
scope += s;
|
841 |
|
|
}
|
842 |
|
|
else if (currentQname.equals("identifier")) {
|
843 |
|
|
identifierString += s;
|
844 |
|
|
}
|
845 |
|
|
else if (currentQname.equals("revision")) {
|
846 |
|
|
revisionString += s;
|
847 |
|
|
}
|
848 |
|
|
else if (currentQname.equals("documentType")) {
|
849 |
|
|
documentType += s;
|
850 |
|
|
}
|
851 |
|
|
else if (currentQname.equals("documentURL")) {
|
852 |
|
|
documentURL += s;
|
853 |
|
|
}
|
854 |
|
|
}
|
855 |
|
|
}
|
856 |
|
|
|
857 |
|
|
|
858 |
|
|
/**
|
859 |
|
|
* Handles an end-of-document event.
|
860 |
|
|
*/
|
861 |
|
|
public void endDocument () {
|
862 |
|
|
System.out.println("Finished parsing Harvest List");
|
863 |
|
|
}
|
864 |
|
|
|
865 |
|
|
|
866 |
|
|
/**
|
867 |
|
|
* Handles an end-of-element event. If the end tag is </Document>, then
|
868 |
|
|
* creates a new HarvestDocument object and pushes it to the document
|
869 |
|
|
* list.
|
870 |
|
|
*
|
871 |
|
|
* @param uri
|
872 |
|
|
* @param localname
|
873 |
|
|
* @param qname
|
874 |
|
|
*/
|
875 |
|
|
public void endElement(String uri,
|
876 |
|
|
String localname,
|
877 |
|
|
String qname) {
|
878 |
|
|
|
879 |
|
|
HarvestDocument harvestDocument;
|
880 |
|
|
|
881 |
|
|
if (qname.equals("identifier")) {
|
882 |
|
|
identifier = Integer.parseInt(identifierString);
|
883 |
|
|
}
|
884 |
|
|
else if (qname.equals("revision")) {
|
885 |
|
|
revision = Integer.parseInt(revisionString);
|
886 |
|
|
}
|
887 |
|
|
else if (qname.equals("document")) {
|
888 |
|
|
harvestListEditor.addRow(rowIndex, scope, identifierString,
|
889 |
|
|
revisionString, documentType, documentURL);
|
890 |
|
|
rowIndex++;
|
891 |
|
|
}
|
892 |
|
|
|
893 |
|
|
currentQname = "";
|
894 |
|
|
}
|
895 |
|
|
|
896 |
|
|
|
897 |
|
|
/**
|
898 |
|
|
* Method for handling errors during a parse
|
899 |
|
|
*
|
900 |
|
|
* @param exception The parsing error
|
901 |
|
|
* @exception SAXException Description of Exception
|
902 |
|
|
*/
|
903 |
|
|
public void error(SAXParseException e) throws SAXParseException {
|
904 |
|
|
System.out.println("SAXParseException: " + e.getMessage());
|
905 |
|
|
throw e;
|
906 |
|
|
}
|
907 |
|
|
|
908 |
|
|
|
909 |
|
|
/**
|
910 |
|
|
* Run the validating parser
|
911 |
|
|
*
|
912 |
|
|
* @param xml the xml stream to be validated
|
913 |
|
|
* @schemaLocation relative path the to XML Schema file, e.g. "."
|
914 |
|
|
* @exception IOException thrown when test files can't be opened
|
915 |
|
|
* @exception ClassNotFoundException thrown when SAX Parser class not found
|
916 |
|
|
* @exception SAXException
|
917 |
|
|
* @exception SAXParserException
|
918 |
|
|
*/
|
919 |
|
|
public void runParser(HarvestListEditor harvestListEditor,
|
920 |
|
|
Reader xml,
|
921 |
|
|
String schemaLocation)
|
922 |
|
|
throws IOException, ClassNotFoundException,
|
923 |
|
|
SAXException, SAXParseException {
|
924 |
|
|
|
925 |
|
|
// Get an instance of the parser
|
926 |
|
|
XMLReader parser;
|
927 |
|
|
|
928 |
|
|
this.harvestListEditor = harvestListEditor;
|
929 |
|
|
this.rowIndex = 0;
|
930 |
|
|
|
931 |
|
|
parser = XMLReaderFactory.createXMLReader(DEFAULT_PARSER);
|
932 |
|
|
// Set Handlers in the parser
|
933 |
|
|
parser.setContentHandler((ContentHandler)this);
|
934 |
|
|
parser.setErrorHandler((ErrorHandler)this);
|
935 |
|
|
parser.setFeature("http://xml.org/sax/features/namespaces", true);
|
936 |
|
|
parser.setFeature("http://xml.org/sax/features/namespace-prefixes", true);
|
937 |
|
|
parser.setFeature("http://xml.org/sax/features/validation", true);
|
938 |
|
|
parser.setProperty(
|
939 |
|
|
"http://apache.org/xml/properties/schema/external-schemaLocation",
|
940 |
|
|
schemaLocation);
|
941 |
|
|
|
942 |
|
|
if (schemaValidate) {
|
943 |
|
|
parser.setFeature("http://apache.org/xml/features/validation/schema",
|
944 |
|
|
true);
|
945 |
|
|
}
|
946 |
|
|
|
947 |
|
|
// Parse the document
|
948 |
|
|
parser.parse(new InputSource(xml));
|
949 |
|
|
}
|
950 |
|
|
|
951 |
|
|
|
952 |
|
|
/**
|
953 |
|
|
* Handles a start-of-document event.
|
954 |
|
|
*/
|
955 |
|
|
public void startDocument () {
|
956 |
|
|
System.out.println("Started parsing Harvest List");
|
957 |
|
|
}
|
958 |
|
|
|
959 |
|
|
|
960 |
|
|
/**
|
961 |
|
|
* Handles a start-of-element event.
|
962 |
|
|
*
|
963 |
|
|
* @param uri
|
964 |
|
|
* @param localname
|
965 |
|
|
* @param qname
|
966 |
|
|
* @param attributes
|
967 |
|
|
*/
|
968 |
|
|
public void startElement(String uri,
|
969 |
|
|
String localname,
|
970 |
|
|
String qname,
|
971 |
|
|
Attributes attributes) {
|
972 |
|
|
|
973 |
|
|
currentQname = qname;
|
974 |
|
|
|
975 |
|
|
if (qname.equals("scope")) {
|
976 |
|
|
scope = "";
|
977 |
|
|
}
|
978 |
|
|
else if (qname.equals("identifier")) {
|
979 |
|
|
identifierString = "";
|
980 |
|
|
}
|
981 |
|
|
else if (qname.equals("revision")) {
|
982 |
|
|
revisionString = "";
|
983 |
|
|
}
|
984 |
|
|
else if (qname.equals("documentType")) {
|
985 |
|
|
documentType = "";
|
986 |
|
|
}
|
987 |
|
|
else if (qname.equals("documentURL")) {
|
988 |
|
|
documentURL = "";
|
989 |
|
|
}
|
990 |
|
|
}
|
991 |
|
|
}
|
992 |
|
|
}
|