/* The contents of this file are subject to the license and copyright terms
* detailed in the license directory at the root of the source tree (also
* available online at http://fedora-commons.org/license/).
*/
package fedora.client.objecteditor;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.FlowLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import javax.swing.AbstractAction;
import javax.swing.BorderFactory;
import javax.swing.ButtonGroup;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import fedora.client.Administrator;
/**
* Launch a dialog for getting a local file or a URL in order to import content.
*
* <p>If a URL is chosen, download the content ensure that the public file
* member points to it. The URL must be resolvable and return a response code
* of 200 in order for this to work. In the case where the file's content comes
* from a URL, it will request deleteOnExit(). When this dialog closes, if file
* is null, it was canceled. If it was not canceled, file will point to the
* content. If url is not null, it means the import occurred from a url and that
* is the source.
*
* @author Chris Wilper
*/
public class ImportDialog
extends JDialog {
private static final long serialVersionUID = 1L;
public File file = null;
public String url = null;
private final JTextField m_fileField;
private final JTextField m_urlField;
private final JRadioButton m_fileButton;
private final JRadioButton m_urlButton;
public ImportDialog() {
super(JOptionPane.getFrameForComponent(Administrator.getDesktop()),
"Import Content",
true);
ImportAction importAction = new ImportAction();
JButton importButton = new JButton(importAction);
Administrator.constrainHeight(importButton);
m_fileButton = new JRadioButton("From file");
m_urlButton = new JRadioButton("From URL");
ButtonGroup group = new ButtonGroup();
group.add(m_fileButton);
group.add(m_urlButton);
m_fileButton.setSelected(true);
m_fileField = new JTextField(20);
JButton browseButton = new JButton("Browse...");
Administrator.constrainHeight(browseButton);
browseButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
JFileChooser browse;
if (Administrator.getLastDir() == null) {
browse = new JFileChooser();
} else {
browse = new JFileChooser(Administrator.getLastDir());
}
browse.setApproveButtonText("Import");
browse.setApproveButtonMnemonic('I');
browse
.setApproveButtonToolTipText("Imports the selected file.");
browse.setDialogTitle("Import New Datastream Content...");
int returnVal =
browse.showOpenDialog(Administrator.getDesktop());
if (returnVal == JFileChooser.APPROVE_OPTION) {
m_fileField.setText(browse.getSelectedFile().getPath());
}
}
});
JPanel fileValuePanel = new JPanel();
fileValuePanel.setLayout(new FlowLayout());
fileValuePanel.add(m_fileField);
fileValuePanel.add(browseButton);
m_urlField = new JTextField(20);
JPanel inputPane = new JPanel();
inputPane.setBorder(BorderFactory
.createCompoundBorder(BorderFactory
.createCompoundBorder(BorderFactory
.createEmptyBorder(4, 4, 4, 4), BorderFactory
.createEtchedBorder()), BorderFactory
.createEmptyBorder(4, 4, 4, 4)));
GridBagLayout gridBag = new GridBagLayout();
inputPane.setLayout(gridBag);
addRows(new JComponent[] {m_fileButton, m_urlButton}, new JComponent[] {
fileValuePanel, m_urlField}, gridBag, inputPane);
JButton cancelButton = new JButton(new AbstractAction() {
private static final long serialVersionUID = 1L;
public void actionPerformed(ActionEvent evt) {
dispose();
}
});
cancelButton.setText("Cancel");
Administrator.constrainHeight(cancelButton);
JPanel buttonPane = new JPanel();
buttonPane.add(importButton);
buttonPane.add(cancelButton);
Container contentPane = getContentPane();
contentPane.setLayout(new BorderLayout());
contentPane.add(inputPane, BorderLayout.CENTER);
contentPane.add(buttonPane, BorderLayout.SOUTH);
pack();
setLocation(Administrator.INSTANCE.getCenteredPos(getWidth(),
getHeight()));
setVisible(true);
}
public void addRows(JComponent[] left,
JComponent[] right,
GridBagLayout gridBag,
Container container) {
GridBagConstraints c = new GridBagConstraints();
c.insets = new Insets(0, 4, 4, 4);
for (int i = 0; i < left.length; i++) {
c.anchor = GridBagConstraints.WEST;
c.gridwidth = GridBagConstraints.RELATIVE; //next-to-last
c.fill = GridBagConstraints.NONE; //reset to default
c.weightx = 0.0; //reset to default
gridBag.setConstraints(left[i], c);
container.add(left[i]);
c.gridwidth = GridBagConstraints.REMAINDER; //end row
c.anchor = GridBagConstraints.WEST;
c.weightx = 1.0;
gridBag.setConstraints(right[i], c);
container.add(right[i]);
}
}
public class ImportAction
extends AbstractAction {
private static final long serialVersionUID = 1L;
public ImportAction() {
super("Import");
}
public void actionPerformed(ActionEvent evt) {
try {
if (m_fileButton.isSelected()) {
if (m_fileField.getText().equals("")) {
throw new IOException("No filename entered.");
}
File f = new File(m_fileField.getText());
if (!f.exists()) {
throw new IOException("File does not exist.");
}
file = f;
} else {
if (m_urlField.getText().equals("")) {
throw new IOException("No URL entered.");
}
File f = File.createTempFile("fedora-ingest-", null);
f.deleteOnExit();
try {
Administrator.DOWNLOADER.get(m_urlField.getText(),
new FileOutputStream(f));
} catch (Exception e) {
throw new IOException("Download failed: "
+ m_urlField.getText());
}
url = m_urlField.getText();
file = f;
}
dispose();
} catch (Exception e) {
Administrator.showErrorDialog(Administrator.getDesktop(),
"Import Error",
e.getMessage(),
e);
}
}
}
}