[Httpunit-commit] SF.net SVN: httpunit:[1075] trunk/httpunit/examples/MultiDownload.java

[<wol...@us...>]

Revision: 1075
          http://httpunit.svn.sourceforge.net/httpunit/?rev=1075&view=rev
Author:   wolfgang_fahl
Date:     2011-01-11 15:30:21 +0000 (Tue, 11 Jan 2011)

Log Message:
-----------
new example

Added Paths:
-----------
    trunk/httpunit/examples/MultiDownload.java

Added: trunk/httpunit/examples/MultiDownload.java
===================================================================
--- trunk/httpunit/examples/MultiDownload.java	                        (rev 0)
+++ trunk/httpunit/examples/MultiDownload.java	2011-01-11 15:30:21 UTC (rev 1075)
@@ -0,0 +1,343 @@
+import com.meterware.httpunit.*;
+
+import java.awt.*;
+import java.awt.event.*;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.concurrent.ExecutionException;
+
+import javax.swing.*;
+import javax.swing.text.BadLocationException;
+
+import org.xml.sax.SAXException;
+
+import sun.tools.tree.ThisExpression;
+
+/**
+ * an example that shows how to automate downloads
+ * 
+ * @author wf
+ * 
+ */
+public class MultiDownload extends JPanel implements ActionListener {
+
+	// where all visited videos should go to
+	protected File targetFolder;
+
+	// UI elements for targetFolder selection
+	protected JLabel targetFolderLabel;
+
+	protected JTextField targetFolderField;
+
+	protected JButton FolderSelectButton;
+
+
+	// UI elements for selection of videos to visit
+	protected JLabel urlLabel;
+
+	protected JTextArea urlArea;
+
+	protected JButton downloadButton;
+
+	// progressbar for visits
+	protected JProgressBar progressBar;
+
+	// status message
+	protected JLabel statusMessage;
+	protected JCheckBox displayCheckbox;
+	private boolean withDisplay;
+
+	/**
+	 * @return the withDisplay
+	 */
+	public boolean isWithDisplay() {
+		return withDisplay;
+	}
+
+	/**
+	 * @param withDisplay the withDisplay to set
+	 */
+	public void setWithDisplay(boolean withDisplay) {
+		this.withDisplay = withDisplay;
+		this.displayCheckbox.setSelected(withDisplay);
+	}
+	
+	final static String helpMessage = "Select Target Folder and cut&paste File URLs then click 'download'";
+
+	// Create a file chooser
+	protected JFileChooser fileChooser;
+
+	final static String chooserTitle = "Select Target Folder";
+
+	// Layout constraints
+	GridBagConstraints gbc = new GridBagConstraints();
+
+	/**
+	 * place the given component add the given x, y position with the given weight
+	 * 
+	 * @param c
+	 * @param x
+	 * @param y
+	 * @param wx
+	 * @param wy
+	 */
+	public void place(Component c, int x, int y, double wx, double wy) {
+		gbc.gridx = x;
+		gbc.gridy = y;
+		gbc.weightx = wx;
+		gbc.weighty = wy;
+		add(c, gbc);
+	}
+
+	/**
+	 * post a status message;
+	 * 
+	 * @param msg
+	 */
+	public void setStatus(String msg) {
+		statusMessage.setText(msg);
+	}
+
+	/**
+	 * set default values for fields
+	 */
+	public void initFields() {
+		// use current directory as default target folder
+		this.setTargetFolder(new File("."), true);
+		// default files to download
+		String[] urls = { 
+				"http://downloads.sourceforge.net/project/httpunit/httpunit/1.7/httpunit-1.7.zip", // httpunit,
+				"http://downloads.sourceforge.net/project/junit/junit/4.8.1/junit-4.8.1.jar"  // JUnit
+		 };
+		String urlString = "";
+		for (int i = 0; i < urls.length; i++) {
+			urlString += urls[i] + "\n";
+		}
+		this.urlArea.setText(urlString);
+		// default for display in Browser is false
+		this.setWithDisplay(false);
+	}
+	
+  /**
+   * When the worker needs to update the GUI we do so by queuing
+   * a Runnable for the event dispatching thread with 
+   * SwingUtilities.invokeLater().  In this case we're just
+   * changing the progress bars value.
+   */
+  void updateStatus(final int progress, final String msg) {
+      Runnable doSetProgressBarValue = new Runnable() {
+          public void run() {
+          	  setStatus(msg);
+              progressBar.setValue(progress);
+          }
+      };
+      SwingUtilities.invokeLater(doSetProgressBarValue);
+  }
+
+
+	/**
+	 * constructor
+	 */
+	public MultiDownload() {
+		super(new GridBagLayout());
+
+		// Target Folder Selection
+		targetFolderLabel = new JLabel("Target Folder:");
+		targetFolderField = new JTextField(20);
+		targetFolderField.addActionListener(this);
+		FolderSelectButton = new JButton("...");
+		FolderSelectButton.addActionListener(this);
+		fileChooser = new JFileChooser();
+		fileChooser.setDialogTitle(chooserTitle);
+		fileChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
+		//
+		// disable the "All files" option.
+		//
+		fileChooser.setAcceptAllFileFilterUsed(false);
+		
+		// File URL Selection
+		urlLabel = new JLabel("File-URLs:");
+
+		urlArea = new JTextArea(10, 40);
+		urlArea.setEditable(true);
+		JScrollPane urlScrollPane = new JScrollPane(urlArea);
+
+		downloadButton = new JButton("download");
+		downloadButton.addActionListener(this);
+
+		progressBar = new JProgressBar(0, 100);
+		progressBar.setValue(0);
+		progressBar.setStringPainted(true);
+
+		statusMessage = new JLabel(helpMessage);
+		displayCheckbox=new JCheckBox("Browser");
+
+
+		// Add Components to this panel.
+		gbc.gridwidth = 1;
+		gbc.gridheight = 1;
+
+		gbc.fill = GridBagConstraints.BOTH;
+		place(targetFolderLabel , 0, 0, 0.2, 0.10);
+		place(targetFolderField , 1, 0, 0.6, 0.10);
+		place(FolderSelectButton, 2, 0, 0.2, 0.10);
+
+		
+		place(urlLabel            , 0, 2, 0.2, 0.60);
+		place(urlScrollPane       , 1, 2, 0.6, 0.60);
+		place(downloadButton         , 2, 2, 0.2, 0.60);
+
+		gbc.gridwidth = 3;
+		place(progressBar         , 0, 3, 1.0, 0.10);
+
+		gbc.gridwidth=2;
+		place(statusMessage       , 0, 4, 0.8, 0.10);
+		gbc.gridwidth=1;
+		place(displayCheckbox     , 2, 4, 0.2, 0.10);
+		initFields();
+	}
+
+	/**
+	 * get the target Folder
+	 * @return
+	 */
+	public File getTargetFolder(){
+		return new File(targetFolderField.getText());
+	}
+	
+	/**
+	 * set a new target Folder
+	 * 
+	 * @param targetFolder
+	 *          the targetFolder to set
+	 * @param withField
+	 *          - shall the GUI display also be set?
+	 */
+	public void setTargetFolder(File newTargetFolder, boolean withField) {
+		this.targetFolder = newTargetFolder;
+		if (!targetFolder.exists())
+			this.setStatus("target Folder " + newTargetFolder + " does not exist!");
+		if (withField)
+			try {
+				targetFolderField.setText(targetFolder.getCanonicalPath());
+			} catch (IOException e) {
+				setStatus(e.getMessage());
+			}
+	}
+	
+
+	/**
+	 * start downloading the Files asked for
+	 */
+	public void downloadAll() {
+		String text = urlArea.getText();
+		int totalLines = urlArea.getLineCount();
+		int count=0;
+		String urls[] = new String[totalLines];
+		try {
+			for (int i = 0; i < totalLines; i++) {
+				int start;
+				start = urlArea.getLineStartOffset(i);
+				int end = urlArea.getLineEndOffset(i);
+				String line = text.substring(start, end);
+				if (!line.trim().equals(""))
+						urls[count++] = line.replace("\n","");
+			}
+		} catch (BadLocationException e) {
+			setStatus(e.getMessage());
+		}
+		String msg="downloading "+count+" Files";
+		this.progressBar.setMaximum(count);
+		this.updateStatus(0, msg);
+		for (int i=0;i<count;i++){
+			download(i+1,urls[i]);
+		}
+	}
+	private WebConversation conversation = new WebConversation();
+	private WebResponse response;
+	
+	/**
+	 * download a file from the given web link
+	 * @param progress 
+	 * @param url - the link to get the file from
+	 */
+	private void download(int progress, String url) {
+		try {
+			String msg="downloading "+url;
+			this.updateStatus(progress, msg);
+			response=conversation.getResponse(url);
+			byte[] download = response.getBytes();
+			int lastSlash=url.lastIndexOf("/");
+			String filePart=url.substring(lastSlash);
+			String targetFileName=this.getTargetFolder().getCanonicalPath()+"/"+filePart;
+			File targetFile=new File(targetFileName);
+			if (targetFile.exists())
+				setStatus(targetFileName+" exists");
+			else {
+				setStatus("downloading "+url+" ("+download.length/1024+" KByte)");
+				FileOutputStream fos=new FileOutputStream(targetFile);
+				fos.write(download);
+				fos.close();
+			}	
+		} catch (Throwable th) {
+			setStatus(th.getMessage());
+		}
+	}
+
+	/**
+	 * react on clicks
+	 */
+	public void actionPerformed(ActionEvent evt) {
+		// Folder Selection
+		if (evt.getSource().equals(FolderSelectButton)) {
+			int returnVal = fileChooser.showOpenDialog(MultiDownload.this);
+
+			if (returnVal == JFileChooser.APPROVE_OPTION) {
+				setTargetFolder(fileChooser.getSelectedFile(), true);
+			}
+		} // download action
+		else if (evt.getSource().equals(this.downloadButton)) {
+			SwingUtilities.invokeLater(new Runnable() {
+		    public void run() {
+		     downloadAll();
+		    }
+		  });
+
+		}
+	}
+
+	/**
+	 * Create the GUI and show it. For thread safety, this method should be
+	 * invoked from the event dispatch thread.
+	 */
+	private static void createAndShowGUI() {
+		// Create and set up the window.
+		JFrame frame = new JFrame("Multi-Download");
+		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+		// Add contents to the window.
+		frame.add(new MultiDownload());
+
+		// Display the window.
+		frame.pack();
+		frame.setVisible(true);
+	}
+
+	/**
+	 * main routine to startup the GUI
+	 * 
+	 * @param args
+	 */
+	public static void main(String[] args) {
+		// Schedule a job for the event dispatch thread:
+		// creating and showing this application's GUI.
+		javax.swing.SwingUtilities.invokeLater(new Runnable() {
+			public void run() {
+				createAndShowGUI();
+			}
+		});
+	}
+
+}


Property changes on: trunk/httpunit/examples/MultiDownload.java
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Added: svn:mime-type
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