JMeter example source code file (FileListPanel.java)

This example JMeter source code file (FileListPanel.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - JMeter tags/keywords

awt, event, file, filelistpanel, filelistpanel, gui, horizontalpanel, io, jbutton, jbutton, jfilechooser, jscrollpane, jtable, non-nls-1, non-nls-1, objecttablemodel, string, string, swing, util

The JMeter FileListPanel.java source code

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.gui.util;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;

import org.apache.jmeter.gui.GuiPackage;
import org.apache.jmeter.gui.JMeterFileFilter;
import org.apache.jmeter.util.JMeterUtils;
import org.apache.jorphan.gui.ObjectTableModel;
import org.apache.jorphan.reflect.Functor;

public class FileListPanel extends JPanel implements ActionListener {

    private static final long serialVersionUID = 1L;

    private JTable files = null;

    private transient ObjectTableModel tableModel = null;

    private static final String ACTION_BROWSE = "browse"; // $NON-NLS-1$

    private static final String LABEL_LIBRARY = "library"; // $NON-NLS-1$

    private JButton browse = new JButton(JMeterUtils.getResString(ACTION_BROWSE));

    private JButton clear = new JButton(JMeterUtils.getResString("clear")); // $NON-NLS-1$

    private JButton delete = new JButton(JMeterUtils.getResString("delete")); // $NON-NLS-1$

    private List<ChangeListener> listeners = new LinkedList();

    private String title;

    private String filetype;

    /**
     * Constructor for the FilePanel object.
     */
    public FileListPanel() {
        title = ""; // $NON-NLS-1$
        init();
    }

    public FileListPanel(String title) {
        this.title = title;
        init();
    }

    public FileListPanel(String title, String filetype) {
        this.title = title;
        this.filetype = filetype;
        init();
    }

    /**
     * Constructor for the FilePanel object.
     */
    public FileListPanel(ChangeListener l, String title) {
        this.title = title;
        init();
        listeners.add(l);
    }

    public void addChangeListener(ChangeListener l) {
        listeners.add(l);
    }

    private void init() {
        this.setLayout(new BorderLayout(0, 5));
        setBorder(BorderFactory.createEmptyBorder(5, 0, 5, 5));
        JLabel jtitle = new JLabel(title);

        HorizontalPanel buttons = new HorizontalPanel();
        buttons.add(jtitle);
        buttons.add(browse);
        buttons.add(delete);
        buttons.add(clear);
        add(buttons,BorderLayout.NORTH);

        this.initializeTableModel();
        files = new JTable(tableModel);
        files.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
        files.revalidate();

        JScrollPane scrollpane = new JScrollPane(files);
        scrollpane.setPreferredSize(new Dimension(100,80));
        add(scrollpane,BorderLayout.CENTER);

        browse.setActionCommand(ACTION_BROWSE); // $NON-NLS-1$
        browse.addActionListener(this);
        clear.addActionListener(this);
        delete.addActionListener(this);
        //this.setPreferredSize(new Dimension(400,150));
    }

    /**
     * If the gui needs to enable/disable the FilePanel, call the method.
     *
     * @param enable
     */
    public void enableFile(boolean enable) {
        browse.setEnabled(enable);
        files.setEnabled(false);
    }

    /**
     * Add a single file to the table
     * @param f
     */
    public void addFilename(String f) {
        tableModel.addRow(f);
    }

    /**
     * clear the files from the table
     */
    public void clearFiles() {
        tableModel.clearData();
    }

    public void setFiles(String[] files) {
        this.clearFiles();
        for (int idx=0; idx < files.length; idx++) {
            addFilename(files[idx]);
        }
    }

    public String[] getFiles() {
        String[] _files = new String[tableModel.getRowCount()];
        for (int idx=0; idx < _files.length; idx++) {
            _files[idx] = (String)tableModel.getValueAt(idx,0);
        }
        return _files;
    }

    protected void deleteFile() {
        // If a table cell is being edited, we must cancel the editing before
        // deleting the row

        int rowSelected = files.getSelectedRow();
        if (rowSelected >= 0) {
            tableModel.removeRow(rowSelected);
            tableModel.fireTableDataChanged();

        }
    }

    private void fireFileChanged() {
        Iterator<ChangeListener> iter = listeners.iterator();
        while (iter.hasNext()) {
            iter.next().stateChanged(new ChangeEvent(this));
        }
    }

    protected void initializeTableModel() {
        tableModel = new ObjectTableModel(new String[] { JMeterUtils.getResString(LABEL_LIBRARY) },
                new Functor[0] , new Functor[0] , // i.e. bypass the Functors
                new Class[] { String.class });
    }

    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == clear) {
            this.clearFiles();
        } else if (e.getActionCommand().equals(ACTION_BROWSE)) {
            JFileChooser chooser = new JFileChooser();
            String start = System.getProperty("user.dir", ""); // $NON-NLS-1$ // $NON-NLS-2$
            chooser.setCurrentDirectory(new File(start));
            chooser.setFileFilter(new JMeterFileFilter(new String[] { filetype }));
            chooser.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
            chooser.setMultiSelectionEnabled(true);
            chooser.showOpenDialog(GuiPackage.getInstance().getMainFrame());
            File[] cfiles = chooser.getSelectedFiles();
            if (cfiles != null) {
                for (int idx=0; idx < cfiles.length; idx++) {
                    this.addFilename(cfiles[idx].getPath());
                }
                fireFileChanged();
            }
        } else if (e.getSource() == delete) {
            this.deleteFile();
        } else {
            fireFileChanged();
        }
    }
}