net.handle.apps.gui.hadmin.ListHandleJPanel Maven / Gradle / Ivy
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© COPYRIGHT 2019 Corporation for National Research Initiatives (CNRI);
All rights reserved.
The HANDLE.NET software is made available subject to the
Handle.Net Public License Agreement, which may be obtained at
http://hdl.handle.net/20.1000/112 or hdl:20.1000/112
\**********************************************************************/
package net.handle.apps.gui.hadmin;
import net.handle.hdllib.*;
import net.handle.awt.*;
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class ListHandleJPanel extends JPanel implements ActionListener, ResponseMessageCallback {
private final JTextField naField;
private final JRadioButton outFileRadio;
private final JTextField outFileField;
private final JRadioButton outWindowRadio;
private final JButton browseFileButton;
private final JButton submitButton;
private final JButton changeAuthButton;
private final JTextArea consoleArea;
private Writer hdlOut = null;
private final HandleTool tool;
public ListHandleJPanel(HandleTool tool) {
super();
this.tool = tool;
GridBagLayout gridbag = new GridBagLayout();
setLayout(gridbag);
consoleArea = new JTextArea(10, 30);
consoleArea.setEditable(false);
naField = new JTextField("", 12);
outFileRadio = new JRadioButton("File:", false);
outWindowRadio = new JRadioButton("Window:", true);
ButtonGroup bg = new ButtonGroup();
bg.add(outFileRadio);
bg.add(outWindowRadio);
outFileField = new JTextField("handles.txt", 12);
browseFileButton = new JButton("Browse...");
submitButton = new JButton("Submit");
changeAuthButton = new JButton("Authentication");
int x = 0, y = 0;
add(new JLabel("Prefix: ", SwingConstants.RIGHT), AwtUtil.getConstraints(x, y, 0, 0, 1, 1, true, true));
add(naField, AwtUtil.getConstraints(x + 1, y++, 1, 0, 1, 1, true, true));
JPanel tmpPanel = new JPanel(gridbag);
tmpPanel.add(changeAuthButton, AwtUtil.getConstraints(0, 0, 1, 0, 1, 1, false, false));
tmpPanel.add(submitButton, AwtUtil.getConstraints(1, 0, 1, 0, 1, 1, false, false));
add(tmpPanel, AwtUtil.getConstraints(x, y++, 1, 0, 2, 1, true, true));
add(new JLabel(" "), AwtUtil.getConstraints(x, y++, 0, 0, 1, 1, true, true));
add(new JLabel("Output To: "), AwtUtil.getConstraints(x, y++, 0, 0, 1, 1, true, true));
tmpPanel = new JPanel(gridbag);
tmpPanel.add(outFileRadio, AwtUtil.getConstraints(0, 0, 0, 0, 1, 1, true, true));
tmpPanel.add(outFileField, AwtUtil.getConstraints(1, 0, 1, 0, 1, 1, true, true));
tmpPanel.add(browseFileButton, AwtUtil.getConstraints(2, 0, 0, 0, 1, 1, true, true));
add(tmpPanel, AwtUtil.getConstraints(x, y++, 1, 0, 2, 1, true, true));
add(new JLabel(" "), AwtUtil.getConstraints(x, y++, 0, 0, 1, 1, true, true));
tmpPanel = new JPanel(gridbag);
tmpPanel.add(outWindowRadio, AwtUtil.getConstraints(0, 0, 1, 0, 1, 1, true, true));
tmpPanel.add(new JScrollPane(consoleArea), AwtUtil.getConstraints(0, 1, 1, 1, 1, 1, true, true));
add(tmpPanel, AwtUtil.getConstraints(x, y++, 1, 1, 2, 1, true, true));
submitButton.addActionListener(this);
browseFileButton.addActionListener(this);
changeAuthButton.addActionListener(this);
outFileRadio.addActionListener(this);
outWindowRadio.addActionListener(this);
outputSelected();
}
@Override
public void actionPerformed(ActionEvent ae) {
Object src = ae.getSource();
if (src == submitButton) {
listHandles();
} else if (src == browseFileButton) {
selectFile();
} else if (src == changeAuthButton) {
tool.changeAuthentication();
} else if (src == outFileRadio || src == outWindowRadio) {
outputSelected();
}
}
private void listHandles() {
String prefix = naField.getText().trim();
if (prefix.length() <= 0) {
JOptionPane.showMessageDialog(this, "Missing prefix", "Error Message: ", JOptionPane.ERROR_MESSAGE);
return;
}
byte naHandle[] = Util.encodeString(prefix);
if (!Util.hasSlash(naHandle)) naHandle = Util.convertSlashlessHandleToZeroNaHandle(naHandle); // backwards compatibility
AuthenticationInfo authInfo = tool.getAuthentication();
if (authInfo == null) return;
ListHandlesRequest req = new ListHandlesRequest(naHandle, authInfo);
consoleArea.setText("");
consoleArea.repaint();
try {
if (outFileRadio.isSelected()) {
hdlOut = new OutputStreamWriter(new FileOutputStream(new File(outFileField.getText())), "UTF-8");
} else {
hdlOut = new ConsoleWriter();
}
} catch (Exception e) {
JOptionPane.showMessageDialog(this, "Error setting up output: " + e, "Error Message", JOptionPane.ERROR_MESSAGE);
return;
}
try {
ResolutionRequest dudReq = new ResolutionRequest(Util.encodeString(prefix + "/test"), null, null, null);
System.err.println("finding local sites for " + dudReq);
SiteInfo sites[] = tool.resolver.findLocalSites(dudReq);
// pick a site at random...
SiteInfo site = sites[Math.abs(new java.util.Random().nextInt()) % sites.length];
System.err.println("contacting site: " + site);
tool.resolver.setTcpTimeout(300000);
//set the version of request according to the site info
// check if we're communicating with an older server.
// If so, use their protocol version
if ((site.majorProtocolVersion == 5 && site.minorProtocolVersion == 0) || (site.majorProtocolVersion < Common.MAJOR_VERSION)
|| (site.majorProtocolVersion == Common.MAJOR_VERSION && site.minorProtocolVersion < Common.MINOR_VERSION)) {
req.majorProtocolVersion = site.majorProtocolVersion;
req.minorProtocolVersion = site.minorProtocolVersion;
} else {
req.majorProtocolVersion = Common.MAJOR_VERSION;
req.minorProtocolVersion = Common.MINOR_VERSION;
}
// send a list-handles request to each server in the site...
for (int i = 0; i < site.servers.length; i++) {
ServerInfo server = site.servers[i];
System.err.println(" contacting server: " + server);
try {
AbstractResponse response = tool.resolver.sendRequestToServer(req, site, server, this);
if (response.responseCode != AbstractMessage.RC_SUCCESS) {
System.err.println("got error: " + response);
JOptionPane.showMessageDialog(this, "Error: " + response, "Error Message", JOptionPane.ERROR_MESSAGE);
}
} catch (Exception e) {
e.printStackTrace(System.err);
}
}
} catch (Exception e) {
e.printStackTrace(System.err);
JOptionPane.showMessageDialog(this, "Error: " + e, "Error Message", JOptionPane.ERROR_MESSAGE);
} finally {
if (hdlOut != null) {
try {
hdlOut.close();
} catch (Exception e) {
}
hdlOut = null;
}
}
System.err.println("done listing handles...");
}
@Override
public void handleResponse(AbstractResponse response) {
if (response instanceof ListHandlesResponse) {
try {
ListHandlesResponse lhResp = (ListHandlesResponse) response;
byte handles[][] = lhResp.handles;
for (int i = 0; i < handles.length; i++) {
hdlOut.write(Util.decodeString(handles[i]));
hdlOut.write("\n");
hdlOut.flush();
}
} catch (Exception e) {
System.err.println("Error: " + e);
e.printStackTrace(System.err);
}
} else if (response.responseCode != AbstractMessage.RC_AUTHENTICATION_NEEDED) {
JOptionPane.showMessageDialog(this, "Error: " + response, "Error Message", JOptionPane.ERROR_MESSAGE);
}
}
private void selectFile() {
String path = outFileField.getText();
JFileChooser jfc;
if (path.trim().length() > 0) {
jfc = new JFileChooser(path);
} else {
jfc = new JFileChooser();
}
int result = jfc.showSaveDialog(this);
if (result == JFileChooser.APPROVE_OPTION) {
File selectedFile = jfc.getSelectedFile();
if (selectedFile != null) {
outFileField.setText(selectedFile.getAbsolutePath());
}
}
}
private void outputSelected() {
boolean toFile = outFileRadio.isSelected();
consoleArea.setEnabled(!toFile);
browseFileButton.setEnabled(toFile);
outFileField.setEnabled(toFile);
}
private class ConsoleWriter extends Writer {
@Override
public void write(char cbuf[], int off, int len) {
consoleArea.append(new String(cbuf, off, len));
consoleArea.repaint();
}
@Override
public void write(String str) {
consoleArea.append(str);
consoleArea.repaint();
}
@Override
public void close() {
}
@Override
public void flush() {
}
}
}
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