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The source code

// $Header: /home/cvs/jakarta-jmeter/src/core/org/apache/jmeter/config/gui/SimpleConfigGui.java,v 1.8 2004/03/05 01:33:48 sebb Exp $
/*
 * Copyright 2001-2004 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
*/

package org.apache.jmeter.config.gui;

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.Box;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.table.TableCellEditor;

import org.apache.jmeter.config.ConfigTestElement;
import org.apache.jmeter.gui.util.PowerTableModel;
import org.apache.jmeter.testelement.TestElement;
import org.apache.jmeter.testelement.property.JMeterProperty;
import org.apache.jmeter.testelement.property.PropertyIterator;
import org.apache.jmeter.testelement.property.StringProperty;
import org.apache.jmeter.util.JMeterUtils;
import org.apache.jorphan.collections.Data;

/**
 * Default config gui for Configuration Element.
 *
 * @version    $Revision: 1.8 $ on $Date: 2004/03/05 01:33:48 $
 */
public class SimpleConfigGui extends AbstractConfigGui implements ActionListener
{
    /* This class created for enhancement Bug ID 9101. */
    
    // TODO: This class looks a lot like ArgumentsPanel.  What exactly is the
    // difference?  Could they be combined?
    
    /** The table of configuration parameters. */
    private JTable table;
    
    /** The model for the parameter table. */
    private PowerTableModel tableModel;

    /** A button for adding new parameters to the table. */
    private JButton add;
    
    /** A button for removing parameters from the table. */
    private JButton delete;
    
    /** Command for adding a row to the table. */ 
    private static final String ADD = "add";

    /** Command for removing a row from the table. */ 
    private static final String DELETE = "delete";

    /**
     * Boolean indicating whether or not this component should display its
     * name. If true, this is a standalone component. If false, this component
     * is intended to be used as a subpanel for another component.
     */
    private boolean displayName = true;

    /** The names of the columns in the table. */
    public static final String[] COLUMN_NAMES = {
        JMeterUtils.getResString("name"),
        JMeterUtils.getResString("value"),
        JMeterUtils.getResString("metadata")
    };

    /**
     * Create a new standalone SimpleConfigGui.
     */
    public SimpleConfigGui()
    {
        this(true);
    }

    /**
     * Create a new SimpleConfigGui as either a standalone or an embedded
     * component.
     *
     * @param displayName  indicates whether or not this component should
     *                     display its name.  If true, this is a standalone
     *                     component.  If false, this component is intended
     *                     to be used as a subpanel for another component.
     */
    public SimpleConfigGui(boolean displayName)
    {
        this.displayName = displayName;
        init();
    }

    public String getLabelResource()
    {
        return "simple_config_element";
    }

    /**
     * A newly created component can be initialized with the contents of
     * a Test Element object by calling this method.  The component is
     * responsible for querying the Test Element object for the
     * relevant information to display in its GUI.
     * 

* This implementation retrieves all key/value pairs from the TestElement * object and sets these values in the GUI. * * @param el the TestElement to configure */ public void configure(TestElement el) { super.configure(el); tableModel.clearData(); PropertyIterator iter = el.propertyIterator(); while (iter.hasNext()) { JMeterProperty prop = iter.next(); tableModel.addRow( new Object[] { prop.getName(), prop.getStringValue()}); } checkDeleteStatus(); } /* Implements JMeterGUIComponent.createTestElement() */ public TestElement createTestElement() { TestElement el = new ConfigTestElement(); modifyTestElement(el); return el; } /** * Get all of the values from the GUI component and set them in the * TestElement. * * @param el the TestElement to modify */ public void modifyTestElement(TestElement el) { Data model = tableModel.getData(); model.reset(); while (model.next()) { el.setProperty( new StringProperty( (String) model.getColumnValue(COLUMN_NAMES[0]), (String) model.getColumnValue(COLUMN_NAMES[1]))); } super.configureTestElement(el); } /** * Initialize the components and layout of this component. */ private void init() { setLayout(new BorderLayout(0, 10)); if (displayName) { setBorder(makeBorder()); add(makeTitlePanel(), BorderLayout.NORTH); } add(createTablePanel(), BorderLayout.CENTER); // Force the table to be at least 70 pixels high add(Box.createVerticalStrut(70), BorderLayout.WEST); add(createButtonPanel(), BorderLayout.SOUTH); } /** * Invoked when an action occurs. This implementation supports the add * and delete buttons. * * @param e the event that has occurred */ public void actionPerformed(ActionEvent e) { String action = e.getActionCommand(); if (action.equals(DELETE)) { deleteArgument(); } else if (action.equals(ADD)) { addArgument(); } } /** * Create a GUI panel containing the table of configuration parameters. * * @return a GUI panel containing the parameter table */ private Component createTablePanel() { tableModel = new PowerTableModel( new String[] { COLUMN_NAMES[0], COLUMN_NAMES[1] }, new Class[] { String.class, String.class }); table = new JTable(tableModel); table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); return makeScrollPane(table); } /** * Create a panel containing the add and delete buttons. * * @return a GUI panel containing the buttons */ private JPanel createButtonPanel() { add = new JButton(JMeterUtils.getResString("add")); add.setActionCommand(ADD); add.addActionListener(this); add.setEnabled(true); delete = new JButton(JMeterUtils.getResString("delete")); delete.setActionCommand(DELETE); delete.addActionListener(this); checkDeleteStatus(); JPanel buttonPanel = new JPanel(); buttonPanel.add(add); buttonPanel.add(delete); return buttonPanel; } /** * Enable or disable the delete button depending on whether or not there * is a row to be deleted. */ protected void checkDeleteStatus() { // Disable DELETE if there are no rows in the table to delete. if (tableModel.getRowCount() == 0) { delete.setEnabled(false); } else { delete.setEnabled(true); } } /** * Add a new argument row to the table. */ protected void addArgument() { // If a table cell is being edited, we should accept the current value // and stop the editing before adding a new row. stopTableEditing(); tableModel.addNewRow(); tableModel.fireTableDataChanged(); // Enable DELETE (which may already be enabled, but it won't hurt) delete.setEnabled(true); // Highlight (select) the appropriate row. int rowToSelect = tableModel.getRowCount() - 1; table.setRowSelectionInterval(rowToSelect, rowToSelect); } /** * Stop any editing that is currently being done on the table. This will * save any changes that have already been made. */ protected void stopTableEditing() { if (table.isEditing()) { TableCellEditor cellEditor = table.getCellEditor( table.getEditingRow(), table.getEditingColumn()); cellEditor.stopCellEditing(); } } /** * Remove the currently selected argument from the table. */ protected void deleteArgument() { // If a table cell is being edited, we must cancel the editing before // deleting the row if (table.isEditing()) { TableCellEditor cellEditor = table.getCellEditor( table.getEditingRow(), table.getEditingColumn()); cellEditor.cancelCellEditing(); } int rowSelected = table.getSelectedRow(); if (rowSelected >= 0) { //removeProperty(tableModel.getValueAt ( // table.getSelectedRow(),0).toString()); tableModel.removeRow(rowSelected); tableModel.fireTableDataChanged(); // Disable DELETE if there are no rows in the table to delete. if (tableModel.getRowCount() == 0) { delete.setEnabled(false); } else { // Table still contains one or more rows, so highlight (select) // the appropriate one. int rowToSelect = rowSelected; if (rowSelected >= tableModel.getRowCount()) { rowToSelect = rowSelected - 1; } table.setRowSelectionInterval(rowToSelect, rowToSelect); } } } }

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