Java tutorial
package com.intuit.tank.tools.debugger; /* * #%L * Intuit Tank Agent Debugger * %% * Copyright (C) 2011 - 2015 Intuit Inc. * %% * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * #L% */ import java.awt.Component; import java.awt.event.ActionEvent; import java.io.File; import java.io.FileWriter; import javax.swing.AbstractAction; import javax.swing.JFileChooser; import javax.swing.JOptionPane; import org.apache.commons.io.IOUtils; import com.intuit.tank.tools.debugger.ActionProducer.IconSize; public class SaveTextAction extends AbstractAction { private static final long serialVersionUID = 1L; private JFileChooser saveAsChooser; private Component parent; private OutputTextWriter writer; public SaveTextAction(Component parent, String text, String fileName, OutputTextWriter writer) { super(text, ActionProducer.getIcon("save_as.png", IconSize.SMALL)); this.parent = parent; this.writer = writer; saveAsChooser = new JFileChooser(); saveAsChooser.setDialogTitle(text); // saveAsChooser.setFileSelectionMode(JFileChooser.FILES_ONLY); saveAsChooser.setSelectedFile(new File(fileName)); } /** * */ protected void showSaveDialog() { int response = saveAsChooser.showSaveDialog(parent); if (response == JFileChooser.APPROVE_OPTION) { File selectedFile = saveAsChooser.getSelectedFile(); if (selectedFile.exists()) { int confirm = JOptionPane.showConfirmDialog(parent, "Overwrite file " + selectedFile.getName() + "?"); if (confirm != JOptionPane.YES_OPTION) { return; } } FileWriter fw = null; try { fw = new FileWriter(selectedFile); writer.writeText(fw); } catch (Exception e) { System.err.println("Error writing file: " + e.toString()); e.printStackTrace(); JOptionPane.showMessageDialog(parent, "Error writing file: " + e.toString(), "Error", JOptionPane.ERROR_MESSAGE); } finally { IOUtils.closeQuietly(fw); } } } @Override public void actionPerformed(ActionEvent arg0) { if (writer.hasData()) { showSaveDialog(); } else { JOptionPane.showMessageDialog(parent, "There is no data to write."); } } }