Java tutorial
/* * Simple Amazon Glacier Uploader - GUI client for Amazon Glacier * Copyright (C) 2012-2015 Brian L. McMichael, Libor Rysavy and other contributors * * This program is free software licensed under GNU General Public License * found in the LICENSE file in the root directory of this source tree. */ package com.brianmcmichael.sagu.ui; import com.amazonaws.AmazonClientException; import com.amazonaws.AmazonServiceException; import com.amazonaws.auth.BasicAWSCredentials; import com.amazonaws.services.glacier.AmazonGlacierClient; import com.amazonaws.services.glacier.transfer.ArchiveTransferManager; import com.amazonaws.services.sns.AmazonSNSClient; import com.amazonaws.services.sqs.AmazonSQSClient; import com.brianmcmichael.sagu.Endpoint; import javax.swing.*; import java.awt.*; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.WindowEvent; import java.awt.event.WindowListener; import java.io.File; public class AmazonDownloadRequest extends JFrame implements ActionListener, WindowListener { private static final long serialVersionUID = 1L; public static final String DOWNLOAD_NOTICE = "<html><body><br>Amazon stores your data as a stream of data by archive ID.<br>This information can be found in your log file.<br><br>>> Ensure that Amazon SQS and SNS messaging services are enabled in your AWS console.<br><br>>> Verify that the server and vault on the previous page match the archive<br> you are attmpting to retrieve and enter the archive ID.<br>>> You will then be prompted to select the file name and the location where <br>you would like to save the data.<br>>> Once you click the 'retrieve' button it will take approximately 4 hours <br>for Amazon to process your request.<br>>> Once your files have been prepared your download will begin automatically.<br>>> You will be notified when your download has completed successfully.<br><br> WARNING: <br>Closing the program during a retrieval request will cancel your download.</body><html>"; private JTextField jtfDownloadField; private JButton jbtDownload, jbtBack; private AmazonGlacierClient dlClient; private BasicAWSCredentials dlCredentials; private int locationChoice; private String dlVault; private JFileChooser fc = new JFileChooser(); private String archiveId; // Constructor public AmazonDownloadRequest(AmazonGlacierClient client, String vaultName, int region, BasicAWSCredentials credentials) { super("Request Download"); int width = 200; int height = 170; Color wc = Color.WHITE; dlClient = client; dlVault = vaultName; locationChoice = region; dlCredentials = credentials; JLabel label1 = new JLabel("ArchiveID to Download from " + dlVault + " in server region " + Endpoint.getTitleByIndex(region) + ":"); jtfDownloadField = new JTextField(100); JLabel label2 = new JLabel(DOWNLOAD_NOTICE); jbtDownload = new JButton("Request Download"); jbtBack = new JButton("Back"); fc.setFileSelectionMode(JFileChooser.FILES_ONLY); fc.setDialogTitle("Save File As"); JPanel p1 = new JPanel(); p1.setLayout(new FlowLayout()); p1.add(label1); p1.setBackground(wc); JPanel p2 = new JPanel(); p2.setLayout(new BorderLayout()); p2.add(jtfDownloadField, BorderLayout.NORTH); jtfDownloadField.addMouseListener(new ContextMenuMouseListener()); jtfDownloadField.setFocusable(true); p2.add(label2, BorderLayout.CENTER); label2.setHorizontalAlignment(JLabel.CENTER); p2.setBackground(wc); JPanel p3 = new JPanel(); p3.setLayout(new FlowLayout()); p3.add(jbtDownload); jbtDownload.addActionListener(this); jbtDownload.setBackground(wc); p3.add(jbtBack); jbtBack.addActionListener(this); jbtBack.setBackground(wc); p3.setBackground(wc); JPanel p4 = new JPanel(); p4.setBackground(wc); p4.setLayout(new BorderLayout()); p4.add(p1, BorderLayout.NORTH); p4.add(p2, BorderLayout.CENTER); p4.add(p3, BorderLayout.SOUTH); setContentPane(p4); // Register listeners addWindowListener(this); // Prepare for display pack(); if (width < getWidth()) // prevent setting width too small width = getWidth(); if (height < getHeight()) // prevent setting height too small height = getHeight(); centerOnScreen(width, height); jtfDownloadField.setText(""); jtfDownloadField.requestFocus(); } public void centerOnScreen(int width, int height) { int top, left, x, y; // Get the screen dimension Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); // Determine the location for the top left corner of the frame x = (screenSize.width - width) / 2; y = (screenSize.height - height) / 2; left = (x < 0) ? 0 : x; top = (y < 0) ? 0 : y; this.setBounds(left, top, width, height); } @Override public void windowActivated(WindowEvent arg0) { } @Override public void windowClosed(WindowEvent arg0) { } @Override public void windowClosing(WindowEvent arg0) { } @Override public void windowDeactivated(WindowEvent arg0) { } @Override public void windowDeiconified(WindowEvent arg0) { } @Override public void windowIconified(WindowEvent arg0) { } @Override public void windowOpened(WindowEvent arg0) { jtfDownloadField.setText(""); jtfDownloadField.requestFocus(); } @Override public void actionPerformed(ActionEvent e) { if (e.getSource() == jbtDownload) { archiveId = jtfDownloadField.getText().trim(); if ((archiveId.equals(""))) { JOptionPane.showMessageDialog(null, "Enter the Archive ID of the file to be requested.", "Error", JOptionPane.ERROR_MESSAGE); } else { SwingWorker<Object, Void> downloadWorker = new SwingWorker<Object, Void>() { private String archiveId = jtfDownloadField.getText().trim(); @Override protected Void doInBackground() throws Exception { // Create dumb progressbar JFrame downloadFrame = new JFrame("Downloading"); { downloadFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); final JProgressBar dumJProgressBar = new JProgressBar(JProgressBar.HORIZONTAL); dumJProgressBar.setIndeterminate(true); downloadFrame.add(dumJProgressBar, BorderLayout.NORTH); downloadFrame.setSize(300, 60); } centerDefineFrame(downloadFrame, 300, 50); try { String vaultName = dlVault; FileDialog fd = new FileDialog(new Frame(), "Save Archive As...", FileDialog.SAVE); fd.setFile("Save Archive As..."); fd.setDirectory(System.getProperty("user.dir")); fd.setLocation(50, 50); fd.setVisible(true); String filePath = "" + fd.getDirectory() + System.getProperty("file.separator") + fd.getFile(); File outFile = new File(filePath); if (outFile != null) { downloadFrame.setTitle("Downloading " + outFile.toString()); downloadFrame.setVisible(true); final Endpoint endpoint = Endpoint.getByIndex(locationChoice); AmazonSQSClient dlSQS = new AmazonSQSClient(dlCredentials); AmazonSNSClient dlSNS = new AmazonSNSClient(dlCredentials); dlSQS.setEndpoint(endpoint.getSQSEndpoint()); dlSNS.setEndpoint(endpoint.getSNSEndpoint()); // ArchiveTransferManager atm = new // ArchiveTransferManager(dlClient, // dlCredentials); ArchiveTransferManager atm = new ArchiveTransferManager(dlClient, dlSQS, dlSNS); atm.download("-", vaultName, archiveId, outFile); JOptionPane.showMessageDialog(null, "Sucessfully downloaded " + outFile.toString(), "Success", JOptionPane.INFORMATION_MESSAGE); downloadFrame.setVisible(false); } } catch (AmazonServiceException k) { JOptionPane.showMessageDialog(null, "The server returned an error. Wait 24 hours after submitting an archive to attempt a download. Also check that correct location of archive has been set on the previous page.", "Error", JOptionPane.ERROR_MESSAGE); System.out.println("" + k); downloadFrame.setVisible(false); } catch (AmazonClientException i) { JOptionPane.showMessageDialog(null, "Client Error. Check that all fields are correct. Archive not downloaded.", "Error", JOptionPane.ERROR_MESSAGE); downloadFrame.setVisible(false); } catch (Exception j) { JOptionPane.showMessageDialog(null, "Archive not found. Unspecified Error.", "Error", JOptionPane.ERROR_MESSAGE); downloadFrame.setVisible(false); } return null; } }; downloadWorker.execute(); try { Thread.sleep(500); } catch (InterruptedException e1) { e1.printStackTrace(); } this.setVisible(false); dispose(); } } else if (e.getSource() == jbtBack) { this.setVisible(false); dispose(); } else { JOptionPane.showMessageDialog(this, "Please choose a valid action."); } } void centerDefineFrame(JFrame f, int width, int height) { Toolkit tk = Toolkit.getDefaultToolkit(); // Get the screen dimensions. Dimension screen = tk.getScreenSize(); // Set frame size f.setSize(width, height); // And place it in center of screen. int lx = (int) (screen.getWidth() * 3 / 8); int ly = (int) (screen.getHeight() * 3 / 8); f.setLocation(lx, ly); } // centerFrame }