/* 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.CardLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FileDialog;
import java.awt.FlowLayout;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSlider;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.ListSelectionModel;
import javax.swing.border.CompoundBorder;
import javax.swing.border.EmptyBorder;
import javax.swing.border.LineBorder;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import org.apache.log4j.Logger;
import fedora.client.Administrator;
import fedora.server.types.gen.Datastream;
import fedora.server.utilities.StreamUtility;
/**
* Displays a datastream's attributes, allowing the editing of its state, and
* some of the most recent version's attributes. Also provides buttons for
* working with the content of the datastream, depending on its type.
*
* @author Chris Wilper
* @version $Id$
*/
public class DatastreamPane
extends EditingPane
implements ChangeListener {
/** Logger for this class. */
private static final Logger LOG =
Logger.getLogger(DatastreamPane.class.getName());
private static final long serialVersionUID = 1L;
protected String m_pid;
private final Datastream m_mostRecent;
protected JComboBox m_stateComboBox;
static protected String s_stateComboBoxValues[] = {"A", "I", "D"};
protected JComboBox m_versionableComboBox;
private JSlider m_versionSlider;
private final JPanel m_valuePane;
private final CardLayout m_versionCardLayout;
protected CurrentVersionPane m_currentVersionPane;
protected DatastreamsPane m_owner;
private final PurgeButtonListener m_purgeButtonListener;
private boolean m_done;
private final Dimension m_labelDims;
private JTextArea m_dtLabel;
private JPanel m_dateLabelAndValue;
private final Datastream[] m_versions;
protected final static int NEW_VERSION_ON_UPDATE = 0;
protected final static int REPLACE_ON_UPDATE = 1;
/**
* Build the pane.
*/
public DatastreamPane(ObjectEditorFrame gramps,
String pid,
Datastream[] versions,
DatastreamsPane owner)
throws Exception {
super(gramps, owner, versions[0].getID());
m_pid = pid;
m_versions = versions;
Datastream mostRecent = versions[0];
m_mostRecent = mostRecent;
m_owner = owner;
m_labelDims = new JLabel("Control Group").getPreferredSize();
new TextContentEditor(); // causes it to be registered if not already
new ImageContentViewer(); // causes it to be registered if not already
new SVGContentViewer(); // causes it to be registered if not already
new RDFTupleEditor(); // causes it to be registered if not already
// mainPane(commonPane, versionPane)
// NORTH: commonPane(state, controlGroup)
// LEFT: labels
JLabel idLabel = new JLabel("ID");
JLabel stateLabel = new JLabel("State");
JLabel versionableLabel = new JLabel("Versionable");
JLabel controlGroupLabel = new JLabel("Control Group");
JLabel[] leftCommonLabels =
new JLabel[] {idLabel, controlGroupLabel, stateLabel,
versionableLabel};
// RIGHT: values
String[] comboBoxStrings = {"Active", "Inactive", "Deleted"};
m_stateComboBox = new JComboBox(comboBoxStrings);
Administrator.constrainHeight(m_stateComboBox);
if (mostRecent.getState().equals("A")) {
m_stateComboBox.setSelectedIndex(0);
m_stateComboBox.setBackground(Administrator.ACTIVE_COLOR);
} else if (mostRecent.getState().equals("I")) {
m_stateComboBox.setSelectedIndex(1);
m_stateComboBox.setBackground(Administrator.INACTIVE_COLOR);
} else {
m_stateComboBox.setSelectedIndex(2);
m_stateComboBox.setBackground(Administrator.DELETED_COLOR);
}
m_stateComboBox.addActionListener(dataChangeListener);
m_stateComboBox.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
String curState;
if (m_stateComboBox.getSelectedIndex() == 1) {
curState = "I";
m_stateComboBox.setBackground(Administrator.INACTIVE_COLOR);
} else if (m_stateComboBox.getSelectedIndex() == 2) {
curState = "D";
m_stateComboBox.setBackground(Administrator.DELETED_COLOR);
} else {
curState = "A";
m_stateComboBox.setBackground(Administrator.ACTIVE_COLOR);
}
m_owner.colorTabForState(m_mostRecent.getID(), curState);
}
});
String[] comboBoxStrings2 =
{"Updates will create new version",
"Updates will replace most recent version"};
m_versionableComboBox = new JComboBox(comboBoxStrings2);
Administrator.constrainHeight(m_versionableComboBox);
m_versionableComboBox
.setSelectedIndex(mostRecent.isVersionable() ? NEW_VERSION_ON_UPDATE
: REPLACE_ON_UPDATE);
m_versionableComboBox.addActionListener(dataChangeListener);
JTextArea controlGroupValueLabel =
new JTextArea(getControlGroupString(mostRecent
.getControlGroup().toString()));
controlGroupValueLabel.setBackground(Administrator.BACKGROUND_COLOR);
controlGroupValueLabel.setEditable(false);
JComponent[] leftCommonValues =
new JComponent[] {new JLabel(mostRecent.getID()),
controlGroupValueLabel, m_stateComboBox,
m_versionableComboBox};
JPanel leftCommonPane = new JPanel();
GridBagLayout leftCommonGridBag = new GridBagLayout();
leftCommonPane.setLayout(leftCommonGridBag);
addLabelValueRows(leftCommonLabels,
leftCommonValues,
leftCommonGridBag,
leftCommonPane);
JPanel commonPane = leftCommonPane;
// CENTER: versionPane(m_versionSlider, m_valuePane)
// NORTH: m_versionSlider
// set up the shared button listener for purge
m_purgeButtonListener = new PurgeButtonListener(versions);
// do the slider if needed
if (versions.length > 1) {
m_versionSlider =
new JSlider(JSlider.HORIZONTAL, 0, versions.length - 1, 0);
m_versionSlider.addChangeListener(this);
m_versionSlider.setMajorTickSpacing(1);
m_versionSlider.setSnapToTicks(true);
m_versionSlider.setPaintTicks(true);
}
// CENTER: m_valuePane(one card for each version)
m_valuePane = new JPanel();
m_versionCardLayout = new CardLayout();
m_valuePane.setLayout(m_versionCardLayout);
JPanel[] valuePanes = new JPanel[versions.length];
// CARD: valuePanes[0](versionValuePane, versionActionPane)
m_currentVersionPane = new CurrentVersionPane(mostRecent);
valuePanes[0] = m_currentVersionPane;
m_valuePane.add(valuePanes[0], "0");
// CARD: valuePanes[1 to i](versionValuePane, versionActionPane)
for (int i = 1; i < versions.length; i++) {
valuePanes[i] = new PriorVersionPane(versions[i]);
m_valuePane.add(valuePanes[i], "" + i);
}
JPanel versionPane = new JPanel();
versionPane.setLayout(new BorderLayout());
if (versions.length > 1) {
// Add a panel to versionPane.NORTH
// FlowLayout(SwingConstants.LEFT)
// Created Date m_versionSlider
m_dateLabelAndValue =
new JPanel(new FlowLayout(FlowLayout.LEFT, 4, 0));
JLabel createdLabel = new JLabel("Created");
createdLabel.setPreferredSize(m_labelDims);
m_dateLabelAndValue.add(createdLabel);
m_dateLabelAndValue.add(Box.createHorizontalStrut(0));
m_dtLabel = new JTextArea(versions[0].getCreateDate() + " ");
m_dtLabel.setBackground(Administrator.BACKGROUND_COLOR);
m_dtLabel.setEditable(false);
m_dateLabelAndValue.add(m_dtLabel);
JPanel stretch = new JPanel(new BorderLayout());
stretch.setBorder(BorderFactory.createEmptyBorder(0, 0, 4, 0));
stretch.add(m_dateLabelAndValue, BorderLayout.WEST);
stretch.add(m_versionSlider, BorderLayout.CENTER);
versionPane.add(stretch, BorderLayout.NORTH);
}
versionPane.add(m_valuePane, BorderLayout.CENTER);
mainPane.setLayout(new BorderLayout());
mainPane.add(commonPane, BorderLayout.NORTH);
mainPane.add(versionPane, BorderLayout.CENTER);
}
public void stateChanged(ChangeEvent e) {
JSlider source = (JSlider) e.getSource();
if (!source.getValueIsAdjusting()) {
m_versionCardLayout.show(m_valuePane, "" + source.getValue());
m_dtLabel.setText(m_versions[source.getValue()].getCreateDate());
}
}
public boolean isDirty() {
if (m_done) {
return false;
}
int stateIndex = 0;
if (m_mostRecent.getState().equals("I")) {
stateIndex = 1;
}
if (m_mostRecent.getState().equals("D")) {
stateIndex = 2;
}
if (stateIndex != m_stateComboBox.getSelectedIndex()) {
return true;
}
int versionableIndex =
m_mostRecent.isVersionable() ? NEW_VERSION_ON_UPDATE
: REPLACE_ON_UPDATE;
if (versionableIndex != m_versionableComboBox.getSelectedIndex()) {
return true;
}
if (m_currentVersionPane.isDirty()) {
return true;
}
return false;
}
private String getControlGroupString(String abbrev) {
if (abbrev.equals("M")) {
return "Managed Content";
} else if (abbrev.equals("X")) {
return "Internal XML Metadata";
} else if (abbrev.equals("R")) {
return "Redirect";
} else {
return "External Reference";
}
}
public static String getFormattedChecksumTypeAndChecksum(Datastream m_ds) {
if (m_ds.getChecksumType() == null || m_ds.getChecksumType().equals("")
|| m_ds.getChecksumType().equals("none")) {
return "";
}
if (m_ds.getChecksumType().equals("DISABLED")) {
return "DISABLED";
}
return m_ds.getChecksumType() + ": " + m_ds.getChecksum();
}
@Override
public void saveChanges(String logMessage) throws Exception {
String state = null;
int i = m_stateComboBox.getSelectedIndex();
state = s_stateComboBoxValues[i]; // "A" "I" or "D"
if (!state.equals(m_mostRecent.getState())) {
Administrator.APIM.setDatastreamState(m_pid,
m_mostRecent.getID(),
state,
logMessage);
}
if ((m_mostRecent.isVersionable() ? NEW_VERSION_ON_UPDATE
: REPLACE_ON_UPDATE) != m_versionableComboBox
.getSelectedIndex()) {
boolean newVersionableSetting =
m_versionableComboBox.getSelectedIndex() == NEW_VERSION_ON_UPDATE ? true
: false;
Administrator.APIM.setDatastreamVersionable(m_pid, m_mostRecent
.getID(), newVersionableSetting, logMessage);
}
if (m_currentVersionPane.isDirty()) {
// defer to the currentVersionPane if anything else changed
try {
m_currentVersionPane.saveChanges(logMessage, false);
} catch (Exception e) {
if (e.getMessage() == null
|| e.getMessage().indexOf(" would invalidate ") == -1) {
throw e;
}
// ask if they want to force it.
Object[] options = {"Yes", "No"};
int selected =
JOptionPane
.showOptionDialog(null,
e.getMessage()
+ "\n\nForce it?",
"Warning",
JOptionPane.DEFAULT_OPTION,
JOptionPane.WARNING_MESSAGE,
null,
options,
options[1]);
if (selected == 0) {
m_currentVersionPane.saveChanges(logMessage, true);
}
}
}
}
@Override
public void changesSaved() {
m_owner.refresh(m_mostRecent.getID());
m_done = true;
}
@Override
public void undoChanges() {
if (m_mostRecent.getState().equals("A")) {
m_stateComboBox.setSelectedIndex(0);
m_stateComboBox.setBackground(Administrator.ACTIVE_COLOR);
} else if (m_mostRecent.getState().equals("I")) {
m_stateComboBox.setSelectedIndex(1);
m_stateComboBox.setBackground(Administrator.INACTIVE_COLOR);
} else if (m_mostRecent.getState().equals("D")) {
m_stateComboBox.setSelectedIndex(2);
m_stateComboBox.setBackground(Administrator.DELETED_COLOR);
}
if ((m_mostRecent.isVersionable() ? NEW_VERSION_ON_UPDATE
: REPLACE_ON_UPDATE) != m_versionableComboBox
.getSelectedIndex()) {
m_versionableComboBox
.setSelectedIndex(m_mostRecent.isVersionable() ? NEW_VERSION_ON_UPDATE
: REPLACE_ON_UPDATE);
}
m_owner.colorTabForState(m_mostRecent.getID(), m_mostRecent.getState());
m_currentVersionPane.undoChanges();
}
protected String getFedoraURL(Datastream ds, boolean withDate) {
StringBuffer buf = new StringBuffer();
buf.append(Administrator.getProtocol() + "://");
buf.append(Administrator.getHost());
if (Administrator.getPort() != 80) {
buf.append(':');
buf.append(Administrator.getPort());
}
buf.append("/" + Administrator.getAppServContext() + "/get/");
buf.append(m_pid);
buf.append('/');
buf.append(ds.getID());
if (withDate) {
buf.append('/');
buf.append(ds.getCreateDate());
}
return buf.toString();
}
public class CurrentVersionPane
extends JPanel
implements PotentiallyDirty {
private static final long serialVersionUID = 1L;
protected Datastream m_ds;
private JTextField m_locationTextField;
protected JTextField m_labelTextField;
private String m_origLabel;
protected JTextField m_MIMETextField;
private String m_origMIME;
protected JTextField m_formatURITextField;
private String m_origFormatURI;
protected JTextField m_altIDsTextField;
private final String m_origAltIDs;
protected JButton m_editButton;
private JButton m_viewButton;
protected JButton m_editCustomButton;
private JButton m_viewCustomButton;
private final JButton m_importButton;
protected JButton m_exportButton;
private JButton m_separateViewButton;
protected JComboBox m_checksumTypeComboBox;
protected JTextField m_checksumTextField;
private final JPanel m_checksumPanel;
protected ContentEditor m_editor;
private ContentViewer m_viewer;
private boolean m_canEdit;
private boolean m_hasCustomEditor;
private final boolean m_canView;
private File m_importFile;
private JLabel m_importLabel;
protected JPanel m_actionPane;
protected JButton m_purgeButton;
private boolean X;
private boolean M;
private boolean E;
private boolean R;
public CurrentVersionPane(Datastream ds) {
m_ds = ds;
// clean up attribute values for presentation in text boxes...
// set a null ds label to ""
m_origLabel = m_ds.getLabel();
if (m_origLabel == null) {
m_origLabel = "";
}
// set a null mime type to ""
m_origMIME = m_ds.getMIMEType();
if (m_origMIME == null) {
m_origMIME = "";
}
// set a null format_uri to ""
m_origFormatURI = m_ds.getFormatURI();
if (m_origFormatURI == null) {
m_origFormatURI = "";
}
// create a string from alt ids array
m_origAltIDs = getAltIdsString();
if (ds.getControlGroup().toString().equals("X")) {
X = true;
} else if (ds.getControlGroup().toString().equals("M")) {
M = true;
} else if (ds.getControlGroup().toString().equals("E")) {
E = true;
} else if (ds.getControlGroup().toString().equals("R")) {
R = true;
}
// editing is possible if it's XML or Managed content and
// not a special datastream and hasEditor(mimeType)
// AND the initial state wasn't "D"
boolean noEdits = ds.getState().equals("D");
// boolean specialDatastream = ds.getID().equals("METHODMAP") ||
// ds.getID().equals("DSINPUTSPEC") ||
// ds.getID().equals("WSDL");
String dsMimetype = getCustomMimeType(m_ds);
if ((X || M) && !noEdits) {
m_canEdit = ContentHandlerFactory.hasEditor(dsMimetype);
}
if (!dsMimetype.equals(m_ds.getMIMEType())) {
m_hasCustomEditor = true;
}
m_canView = ContentHandlerFactory.hasViewer(dsMimetype);
// whether they're used or not, create these here
if (m_hasCustomEditor) {
m_editCustomButton = new JButton("Edit");
Administrator.constrainHeight(m_editCustomButton);
m_viewCustomButton = new JButton("View");
Administrator.constrainHeight(m_viewCustomButton);
m_editButton = new JButton("Edit as Text");
Administrator.constrainHeight(m_editButton);
m_viewButton = new JButton("View as Text");
Administrator.constrainHeight(m_viewButton);
} else {
m_editButton = new JButton("Edit");
Administrator.constrainHeight(m_editButton);
m_viewButton = new JButton("View");
Administrator.constrainHeight(m_viewButton);
m_editCustomButton = new JButton("Unused Edit");
Administrator.constrainHeight(m_editCustomButton);
m_viewCustomButton = new JButton("Unused View");
Administrator.constrainHeight(m_viewCustomButton);
}
m_importButton = new JButton("Import...");
Administrator.constrainHeight(m_importButton);
m_exportButton = new JButton("Export...");
Administrator.constrainHeight(m_exportButton);
// How we set this JPanel up depends on:
// what control group it is in and
// whether it can be edited or viewed
setLayout(new BorderLayout());
// do the field panel (NORTH)
JLabel labelLabel = new JLabel("Label");
labelLabel.setPreferredSize(m_labelDims);
JLabel MIMELabel = new JLabel("MIME Type");
MIMELabel.setPreferredSize(m_labelDims);
JLabel formatURILabel = new JLabel("Format URI");
formatURILabel.setPreferredSize(m_labelDims);
JLabel altIDsLabel = new JLabel("Alternate IDs");
altIDsLabel.setPreferredSize(m_labelDims);
JLabel urlLabel = new JLabel("Fedora URL");
urlLabel.setPreferredSize(m_labelDims);
JLabel checksumLabel = new JLabel("Checksum");
checksumLabel.setPreferredSize(m_labelDims);
JLabel[] labels;
if (R || E) {
JLabel locationLabel = new JLabel("Location");
locationLabel.setPreferredSize(m_labelDims);
if (m_versionSlider != null) {
labels =
new JLabel[] {labelLabel, MIMELabel,
formatURILabel, altIDsLabel, locationLabel,
urlLabel, checksumLabel};
} else {
labels =
new JLabel[] {new JLabel("Created"), labelLabel,
MIMELabel, formatURILabel, altIDsLabel,
locationLabel, urlLabel, checksumLabel};
}
} else {
if (m_versionSlider != null) {
labels =
new JLabel[] {labelLabel, MIMELabel,
formatURILabel, altIDsLabel, urlLabel,
checksumLabel};
} else if (m_ds.getCreateDate() == null) {
labels =
new JLabel[] {labelLabel, MIMELabel,
formatURILabel, altIDsLabel, checksumLabel};
} else {
labels =
new JLabel[] {new JLabel("Created"), labelLabel,
MIMELabel, formatURILabel, altIDsLabel,
urlLabel, checksumLabel};
}
}
// set up text fields for ds attributes at version level
JComponent[] values;
// ds label text field
m_labelTextField = new JTextField(m_origLabel);
m_labelTextField.getDocument()
.addDocumentListener(dataChangeListener);
// ds MIME text field
m_MIMETextField = new JTextField(m_origMIME);
m_MIMETextField.getDocument()
.addDocumentListener(dataChangeListener);
// ds format URI text field
m_formatURITextField = new JTextField(m_origFormatURI);
m_formatURITextField.getDocument()
.addDocumentListener(dataChangeListener);
// ds alternate ids text field
m_altIDsTextField = new JTextField(m_origAltIDs);
m_altIDsTextField.getDocument()
.addDocumentListener(dataChangeListener);
// disable text fields for special datastreams that cannot be edited
if (noEdits) {
// disable formatURI changes for special datastreams
m_labelTextField.setEnabled(false);
m_MIMETextField.setEnabled(false);
m_formatURITextField.setEnabled(false);
m_altIDsTextField.setEnabled(false);
}
// Fedora URL text field
JTextField urlTextField = new JTextField(getFedoraURL(m_ds, false));
urlTextField.setEditable(false); // so they can copy, but not modify
// Datastream checksum field
m_checksumTypeComboBox =
new JComboBox(new String[] {"DISABLED", "MD5", "SHA-1",
"SHA-256", "SHA-384", "SHA-512"});
setSelectedChecksumType(m_checksumTypeComboBox, ds
.getChecksumType());
m_checksumTextField = new JTextField(m_ds.getChecksum());
m_checksumTextField.setEditable(false);
m_checksumPanel = new JPanel();
m_checksumPanel.setLayout(new BorderLayout());
m_checksumPanel.add(m_checksumTypeComboBox, BorderLayout.WEST);
m_checksumPanel.add(m_checksumTextField, BorderLayout.CENTER);
m_checksumTypeComboBox.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
String csType =
m_checksumTypeComboBox.getSelectedItem().toString();
dataChangeListener.dataChanged();
if (csType.equals("DISABLED")
|| !csType.equals(m_ds.getChecksumType())) {
if (m_checksumTextField != null) {
m_checksumPanel.remove(m_checksumTextField);
m_checksumTextField = null;
m_checksumPanel.validate();
m_checksumPanel.repaint();
}
} else {
if (m_checksumTextField != null) {
m_checksumPanel.remove(m_checksumTextField);
}
m_checksumTextField =
new JTextField(m_ds.getChecksum());
m_checksumTextField.setEditable(false);
m_checksumPanel.add(m_checksumTextField,
BorderLayout.CENTER);
m_checksumPanel.validate();
m_checksumPanel.repaint();
}
}
});
// JTextField checksumTextField=new JTextField(getFormattedChecksumTypeAndChecksum(m_ds));
// checksumTextField.setEditable(false); // so they can copy, but not modify
// ds location URL text field (R and E datastreams only)
if (R || E) {
m_locationTextField = new JTextField(m_ds.getLocation());
m_locationTextField.getDocument()
.addDocumentListener(dataChangeListener);
if (noEdits) {
m_locationTextField.setEnabled(false);
}
if (m_versionSlider != null) {
values =
new JComponent[] {m_labelTextField,
m_MIMETextField, m_formatURITextField,
m_altIDsTextField, m_locationTextField,
urlTextField, m_checksumPanel};
} else {
JTextArea cDateTextArea =
new JTextArea(m_ds.getCreateDate());
cDateTextArea.setBackground(Administrator.BACKGROUND_COLOR);
cDateTextArea.setEditable(false);
values =
new JComponent[] {cDateTextArea, m_labelTextField,
m_MIMETextField, m_formatURITextField,
m_altIDsTextField, m_locationTextField,
urlTextField, m_checksumPanel};
}
} else {
if (m_versionSlider != null) {
values =
new JComponent[] {m_labelTextField,
m_MIMETextField, m_formatURITextField,
m_altIDsTextField, urlTextField,
m_checksumPanel};
} else if (m_ds.getCreateDate() == null) {
values =
new JComponent[] {m_labelTextField,
m_MIMETextField, m_formatURITextField,
m_altIDsTextField, m_checksumPanel};
} else {
JTextArea cDateTextArea =
new JTextArea(m_ds.getCreateDate());
cDateTextArea.setBackground(Administrator.BACKGROUND_COLOR);
cDateTextArea.setEditable(false);
values =
new JComponent[] {cDateTextArea, m_labelTextField,
m_MIMETextField, m_formatURITextField,
m_altIDsTextField, urlTextField,
m_checksumPanel};
}
}
JPanel fieldPane = new JPanel();
GridBagLayout grid = new GridBagLayout();
fieldPane.setLayout(grid);
addLabelValueRows(labels, values, grid, fieldPane);
add(fieldPane, BorderLayout.NORTH);
// Do the buttons!
m_actionPane = new JPanel();
m_actionPane.setLayout(new FlowLayout());
if (m_canEdit) {
if (m_hasCustomEditor) {
m_editCustomButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
// add the editor, and disable the button
try {
startCustomEditor();
} catch (Exception e) {
Administrator.showErrorDialog(Administrator
.getDesktop(), "Content Edit Error", e
.getMessage(), e);
}
}
});
m_actionPane.add(m_editCustomButton);
}
// we know it's editable... add a button
m_editButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
// add the editor, and disable the button
try {
startEditor();
} catch (Exception e) {
Administrator.showErrorDialog(Administrator
.getDesktop(), "Content Edit Error", e
.getMessage(), e);
}
}
});
m_actionPane.add(m_editButton);
// if a *separate* viewer is also available, add a view button
if (!ContentHandlerFactory.viewerIsEditor(dsMimetype)) {
m_separateViewButton = new JButton("View");
Administrator.constrainHeight(m_separateViewButton);
m_separateViewButton
.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
// open a separate viewing window, using the content
// from the *server* if the text is "View", and the
// content from the editor if the text is "Preview"
try {
startSeparateViewer();
} catch (Exception e) {
Administrator
.showErrorDialog(Administrator
.getDesktop(),
"Content View Error",
e.getMessage(),
e);
}
}
});
m_actionPane.add(m_separateViewButton);
}
} else if (m_canView) {
if (m_hasCustomEditor) {
m_viewCustomButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
// add the editor, and disable the button
try {
startCustomViewer();
} catch (Exception e) {
Administrator.showErrorDialog(Administrator
.getDesktop(), "Content Edit Error", e
.getMessage(), e);
}
}
});
m_actionPane.add(m_viewCustomButton);
}
// it's not editable, but it's VIEWable... add a button
m_viewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
// add the viewer, and disable the view button
try {
startViewer();
} catch (Exception e) {
Administrator.showErrorDialog(Administrator
.getDesktop(), "Content View Error", e
.getMessage(), e);
}
}
});
m_actionPane.add(m_viewButton);
}
// should we add the Import button? If we can set content, yes.
if ((X || M) && !noEdits) {
m_actionPane.add(m_importButton);
m_importButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
// remember what we did so we can back out if needed
boolean startedEditor = false;
boolean startedViewer = false;
try {
// prompt for the file or URL:
ImportDialog imp = new ImportDialog();
if (imp.file != null) {
File file = imp.file;
String url = imp.url;
Administrator.setLastDir(file.getParentFile()); // remember the dir for next time
if (m_canEdit) {
if (m_editor == null) {
if (m_hasCustomEditor) {
startCustomEditor();
} else {
startEditor();
}
startedEditor = true;
}
// set content of existing edit widget
m_editor
.setContent(new FileInputStream(file));
// if that went ok, then remember the file
m_importFile = file;
// and send the signal
dataChangeListener.dataChanged();
} else if (m_canView) {
if (m_viewer == null) {
if (m_hasCustomEditor) {
startCustomViewer();
} else {
startViewer();
}
startedViewer = true;
}
// set the content of the existing viewer widget
m_viewer
.setContent(new FileInputStream(file));
// if that went ok, then remember the file
m_importFile = file;
// and send the signal
dataChangeListener.dataChanged();
} else {
// can't view or edit, so put a label
if (url != null) {
m_importLabel =
new JLabel("Will import " + url);
} else {
m_importLabel =
new JLabel("Will import "
+ file.getPath());
}
add(m_importLabel, BorderLayout.CENTER);
validate();
// if that went ok, then remember the file
m_importFile = file;
// and send the signal
dataChangeListener.dataChanged();
}
}
} catch (Exception e) {
if (startedEditor) {
// restore the original ui state
m_editButton.setEnabled(true);
remove(m_editor.getComponent());
m_editor = null;
}
if (startedViewer) {
// restore the original ui state
m_viewButton.setEnabled(true);
remove(m_viewer.getComponent());
m_viewer = null;
}
Administrator.showErrorDialog(Administrator
.getDesktop(), "Content Import Failure", e
.getMessage(), e);
}
}
});
}
// export is always possible!
m_actionPane.add(m_exportButton);
m_exportButton.addActionListener(new ExportActionListener(m_ds));
// and purge is, too
m_purgeButton = new JButton("Purge...");
Administrator.constrainHeight(m_purgeButton);
m_purgeButton.addActionListener(m_purgeButtonListener);
m_purgeButton.setActionCommand(m_ds.getCreateDate());
m_actionPane.add(m_purgeButton);
add(m_actionPane, BorderLayout.SOUTH);
}
private String getAltIdsString() {
String altIDStr = "";
String[] altIDs = m_ds.getAltIDs();
if (altIDs != null) {
for (int z = 0; z < altIDs.length; z++) {
if (z > 0) {
altIDStr += " ";
}
altIDStr += altIDs[z];
}
}
return altIDStr;
}
private void setSelectedChecksumType(JComboBox typeComboBox,
String checksumType) {
for (int i = 0; i < typeComboBox.getItemCount(); i++) {
if (typeComboBox.getItemAt(i).toString().equals(checksumType)) {
typeComboBox.setSelectedIndex(i);
break;
}
}
}
public Datastream getDatastream() {
return m_ds;
}
/**
* Bring up the editing pane, initialized with this datastream's
* content.
*/
private void startEditor() throws Exception {
InputStream curContent = null;
if (m_editor != null) {
if (m_editor.isDirty()) {
curContent = m_editor.getContent();
}
remove(m_editor.getComponent());
m_editor = null;
}
InputStream origContent =
getDatastreamContent(m_pid, m_ds.getID(), m_ds
.getCreateDate());
m_editor =
ContentHandlerFactory.getEditor(m_ds.getMIMEType(),
origContent);
m_editor.setContentChangeListener(dataChangeListener);
if (curContent != null) {
m_editor.setContent(curContent);
}
m_editor.setPIDAndDSID(m_pid, m_ds.getID());
add(m_editor.getComponent(), BorderLayout.CENTER);
m_editButton.setEnabled(false);
m_editCustomButton.setEnabled(true);
validate();
}
public void startViewer() throws Exception {
if (m_viewer != null) {
remove(m_viewer.getComponent());
m_viewer = null;
}
m_viewer =
ContentHandlerFactory
.getViewer(m_ds.getMIMEType(),
getDatastreamContent(m_pid,
m_ds.getID(),
m_ds
.getCreateDate()));
add(m_viewer.getComponent(), BorderLayout.CENTER);
m_viewButton.setEnabled(false);
m_viewCustomButton.setEnabled(true);
validate();
}
/**
* Bring up the editing pane, initialized with this datastream's
* content.
*/
private void startCustomEditor() throws Exception {
InputStream curContent = null;
if (m_editor != null) {
if (m_editor.isDirty()) {
curContent = m_editor.getContent();
}
remove(m_editor.getComponent());
m_editor = null;
}
InputStream origContent =
getDatastreamContent(m_pid, m_ds.getID(), m_ds
.getCreateDate());
m_editor =
ContentHandlerFactory.getEditor(getCustomMimeType(m_ds),
origContent);
m_editor.setContentChangeListener(dataChangeListener);
if (curContent != null) {
m_editor.setContent(curContent);
}
m_editor.setPIDAndDSID(m_pid, m_ds.getID());
add(m_editor.getComponent(), BorderLayout.CENTER);
m_editCustomButton.setEnabled(false);
m_editButton.setEnabled(true);
validate();
}
public void startCustomViewer() throws Exception {
if (m_viewer != null) {
remove(m_viewer.getComponent());
m_viewer = null;
}
m_viewer =
ContentHandlerFactory
.getViewer(getCustomMimeType(m_ds),
getDatastreamContent(m_pid,
m_ds.getID(),
m_ds
.getCreateDate()));
add(m_viewer.getComponent(), BorderLayout.CENTER);
m_viewCustomButton.setEnabled(false);
m_viewButton.setEnabled(true);
validate();
}
public void startSeparateViewer() throws Exception {
InputStream contentStream;
if (m_separateViewButton.getText().equals("Preview")) {
// the editor will provide the content
contentStream = m_editor.getContent();
} else {
// the server will provide the content
contentStream =
getDatastreamContent(m_pid, m_ds.getID(), m_ds
.getCreateDate());
}
ContentViewer separateViewer =
ContentHandlerFactory.getViewer(getCustomMimeType(m_ds),
contentStream);
// now open up a new JInternalFrame and put the v.getComponent()
// in it.
JInternalFrame viewFrame =
new JInternalFrame(m_separateViewButton.getText() + "ing "
+ m_ds.getID()
+ " datastream from object "
+ m_pid,
true,
true,
true,
true);
//viewFrame.setFrameIcon(new ImageIcon(this.getClass().getClassLoader().getResource("images/standard/general/Edit16.gif")));
JPanel myPanel = new JPanel();
myPanel.setLayout(new BorderLayout());
myPanel.add(separateViewer.getComponent(), BorderLayout.CENTER);
viewFrame.getContentPane().add(myPanel);
viewFrame.setSize(720, 520);
Administrator.getDesktop().add(viewFrame);
viewFrame.setVisible(true);
viewFrame.toFront();
}
public void saveChanges(String logMessage, boolean force)
throws Exception {
String label = m_labelTextField.getText().trim();
String mimeType = m_MIMETextField.getText().trim();
String formatURI = m_formatURITextField.getText().trim();
String[] altIDs = m_altIDsTextField.getText().trim().split(" ");
String checksumType =
m_checksumTypeComboBox.getSelectedItem().toString();
if (checksumType.equals(m_ds.getChecksumType())) {
checksumType = null;
}
if (X) {
byte[] content = new byte[0];
if (m_editor != null && m_editor.isDirty()) {
InputStream in = m_editor.getContent();
ByteArrayOutputStream out = new ByteArrayOutputStream();
StreamUtility.pipeStream(in, out, 4096);
content = out.toByteArray();
}
Administrator.APIM.modifyDatastreamByValue(m_pid,
m_ds.getID(),
altIDs,
label,
mimeType,
formatURI,
content,
checksumType,
null, // checksum
logMessage,
force);
} else if (M) {
String loc = null; // if not set, server will not change content
if (m_importFile != null) {
// upload the import file, getting a temporary ref
loc = Administrator.UPLOADER.upload(m_importFile);
} else if (m_editor != null && m_editor.isDirty()) {
// They've edited managed content that came up in an editor...
// use its content
loc = Administrator.UPLOADER.upload(m_editor.getContent());
}
Administrator.APIM.modifyDatastreamByReference(m_pid,
m_ds.getID(),
altIDs,
label,
mimeType,
formatURI,
loc,
checksumType,
null, // checksum
logMessage,
force);
} else {
// external ref or redirect
Administrator.APIM
.modifyDatastreamByReference(m_pid,
m_ds.getID(),
altIDs,
label,
mimeType,
formatURI,
m_locationTextField
.getText(),
checksumType,
null, // checksum
logMessage,
force);
}
}
public boolean isDirty() {
if (m_editor != null) {
if (m_editor.isDirty()) {
// ensure the button label for view is right, if it's there
if (m_separateViewButton != null) {
if (m_separateViewButton.getText().equals("View")) {
m_separateViewButton.setText("Preview");
}
}
return true;
} else {
// ensure the button label for view is right, if it's there
if (m_separateViewButton != null) {
if (m_separateViewButton.getText().equals("Preview")) {
m_separateViewButton.setText("View");
}
}
}
}
if (!m_ds.getLabel().equals(m_labelTextField.getText())) {
return true;
}
if (!m_origMIME.equals(m_MIMETextField.getText())) {
return true;
}
if (!m_origFormatURI.equals(m_formatURITextField.getText())) {
return true;
}
if (!m_origAltIDs.equals(m_altIDsTextField.getText())) {
return true;
}
if (m_locationTextField != null
&& !m_locationTextField.getText()
.equals(m_ds.getLocation())) {
return true;
}
if (!m_checksumTypeComboBox.getSelectedItem().toString()
.equals(m_ds.getChecksumType())) {
return true;
}
if (m_importFile != null) {
return true;
}
return false;
}
public void undoChanges() {
m_labelTextField.setText(m_origLabel);
m_MIMETextField.setText(m_origMIME);
m_formatURITextField.setText(m_origFormatURI);
m_altIDsTextField.setText(m_origAltIDs);
if (m_locationTextField != null) {
m_locationTextField.setText(m_ds.getLocation());
}
if (m_editor != null) {
m_editor.undoChanges();
}
setSelectedChecksumType(m_checksumTypeComboBox, m_ds
.getChecksumType());
if (m_importFile != null) {
m_importFile = null;
// and remove the viewer if it's up, and re-enable the view
// button
if (m_canView) {
// must be viewing, so remove the viewer and re-enable the
// view button
m_viewButton.setEnabled(true);
remove(m_viewer.getComponent());
m_viewer = null;
} else {
// remove the JLabel
remove(m_importLabel);
m_importLabel = null;
}
}
}
}
public class PriorVersionPane
extends JPanel {
private static final long serialVersionUID = 1L;
private boolean X;
private boolean M;
private boolean E;
private boolean R;
private final Datastream m_ds;
private String m_priorLabel;
private String m_priorMIME;
private String m_priorFormatURI;
private String m_priorAltIDs;
private JButton m_viewButton;
private JButton m_viewTextButton;
public PriorVersionPane(Datastream ds) {
m_ds = ds;
// clean up attribute values for presentation in text boxes...
// set a null ds label to ""
m_priorLabel = m_ds.getLabel();
if (m_priorLabel == null) {
m_priorLabel = "";
}
// set a null MIME type to ""
m_priorMIME = m_ds.getMIMEType();
if (m_priorMIME == null) {
m_priorMIME = "";
}
// set a null format_uri to ""
m_priorFormatURI = m_ds.getFormatURI();
if (m_priorFormatURI == null) {
m_priorFormatURI = "";
}
// create a string from alt ids array
m_priorAltIDs = "";
String[] altIDs = m_ds.getAltIDs();
if (altIDs != null) {
for (int z = 0; z < altIDs.length; z++) {
if (z > 0) {
m_priorAltIDs += " ";
}
m_priorAltIDs += altIDs[z];
}
}
if (ds.getControlGroup().toString().equals("X")) {
X = true;
} else if (ds.getControlGroup().toString().equals("M")) {
M = true;
} else if (ds.getControlGroup().toString().equals("E")) {
E = true;
} else if (ds.getControlGroup().toString().equals("R")) {
R = true;
}
setLayout(new BorderLayout());
// NORTH: fieldPanel
// disabled labels and values
// ds label...
JLabel labelLabel = new JLabel("Label");
labelLabel.setMinimumSize(m_labelDims);
JTextField labelValue = new JTextField();
labelValue.setText(m_priorLabel);
labelValue.setEditable(false);
// ds MIME type...
JLabel MIMELabel = new JLabel("MIME Type");
MIMELabel.setMinimumSize(m_labelDims);
JTextField MIMEValue = new JTextField();
MIMEValue.setText(m_priorMIME);
MIMEValue.setEditable(false);
// ds format URI...
JLabel formatURILabel = new JLabel("Format URI");
formatURILabel.setMinimumSize(m_labelDims);
JTextField formatURIValue = new JTextField();
formatURIValue.setText(m_priorFormatURI);
formatURIValue.setEditable(false);
// ds alternate ids...
JLabel altIDsLabel = new JLabel("Alternate IDs");
altIDsLabel.setMinimumSize(m_labelDims);
JTextField altIDsValue = new JTextField();
altIDsValue.setText(m_priorAltIDs);
altIDsValue.setEditable(false);
// ds Fedora URL...
JLabel urlLabel = new JLabel("Fedora URL");
urlLabel.setPreferredSize(m_labelDims);
JTextField urlTextField = new JTextField(getFedoraURL(m_ds, true));
urlTextField.setEditable(false); // so they can copy, but not modify
// Datastream checksum field
JLabel checksumLabel = new JLabel("Checksum");
checksumLabel.setPreferredSize(m_labelDims);
JTextField checksumTextField =
new JTextField(getFormattedChecksumTypeAndChecksum(m_ds));
checksumTextField.setEditable(false); // so they can copy, but not modify
JLabel[] labels;
JComponent[] values;
if (E || R) {
labels =
new JLabel[] {labelLabel, MIMELabel, formatURILabel,
altIDsLabel, new JLabel("Location"), urlLabel,
checksumLabel};
JTextField refValue = new JTextField();
refValue.setText(ds.getLocation());
refValue.setEditable(false);
values =
new JComponent[] {labelValue, MIMEValue,
formatURIValue, altIDsValue, refValue,
urlTextField, checksumTextField};
} else {
labels =
new JLabel[] {labelLabel, MIMELabel, formatURILabel,
altIDsLabel, urlLabel, checksumLabel};
values =
new JComponent[] {labelValue, MIMEValue,
formatURIValue, altIDsValue, urlTextField,
checksumTextField};
}
JPanel fieldPanel = new JPanel();
GridBagLayout fieldGrid = new GridBagLayout();
fieldPanel.setLayout(fieldGrid);
addLabelValueRows(labels, values, fieldGrid, fieldPanel);
add(fieldPanel, BorderLayout.NORTH);
// SOUTH: buttonPanel
JPanel buttonPanel = new JPanel();
buttonPanel.setLayout(new FlowLayout());
if (ds.getMIMEType() != getCustomMimeType(ds)) // Has Custom Viuwer
{
if (ContentHandlerFactory.hasViewer(ds.getMIMEType())) {
m_viewButton = new JButton("View");
Administrator.constrainHeight(m_viewButton);
// CENTER: populated on view
m_viewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
JButton btn = (JButton) evt.getSource();
try {
ContentViewer v =
ContentHandlerFactory
.getViewer(getCustomMimeType(m_ds),
Administrator.DOWNLOADER
.getDatastreamContent(m_pid,
m_ds
.getID(),
m_ds
.getCreateDate()));
add(v.getComponent(), BorderLayout.CENTER);
btn.setEnabled(false);
m_viewTextButton.setEnabled(true);
validate();
} catch (Exception e) {
Administrator
.showErrorDialog(Administrator
.getDesktop(),
"Content View Failure",
e.getMessage(),
e);
}
}
});
buttonPanel.add(m_viewButton);
m_viewTextButton = new JButton("View as Text");
Administrator.constrainHeight(m_viewTextButton);
// CENTER: populated on view
m_viewTextButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
JButton btn = (JButton) evt.getSource();
try {
ContentViewer v =
ContentHandlerFactory
.getViewer(m_ds.getMIMEType(),
Administrator.DOWNLOADER
.getDatastreamContent(m_pid,
m_ds
.getID(),
m_ds
.getCreateDate()));
add(v.getComponent(), BorderLayout.CENTER);
btn.setEnabled(false);
m_viewButton.setEnabled(true);
validate();
} catch (Exception e) {
Administrator
.showErrorDialog(Administrator
.getDesktop(),
"Content View Failure",
e.getMessage(),
e);
}
}
});
buttonPanel.add(m_viewTextButton);
}
} else // No Custom Viewer
{
if (ContentHandlerFactory.hasViewer(ds.getMIMEType())) {
m_viewButton = new JButton("View");
Administrator.constrainHeight(m_viewButton);
// CENTER: populated on view
m_viewButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
JButton btn = (JButton) evt.getSource();
try {
ContentViewer v =
ContentHandlerFactory
.getViewer(getCustomMimeType(m_ds),
Administrator.DOWNLOADER
.getDatastreamContent(m_pid,
m_ds
.getID(),
m_ds
.getCreateDate()));
add(v.getComponent(), BorderLayout.CENTER);
btn.setEnabled(false);
validate();
} catch (Exception e) {
Administrator
.showErrorDialog(Administrator
.getDesktop(),
"Content View Failure",
e.getMessage(),
e);
}
}
});
buttonPanel.add(m_viewButton);
}
}
JButton exportButton = new JButton("Export...");
Administrator.constrainHeight(exportButton);
exportButton.addActionListener(new ExportActionListener(m_ds));
buttonPanel.add(exportButton);
JButton purgeButton = new JButton("Purge...");
Administrator.constrainHeight(purgeButton);
purgeButton.addActionListener(m_purgeButtonListener);
purgeButton.setActionCommand(m_ds.getCreateDate());
buttonPanel.add(purgeButton);
add(buttonPanel, BorderLayout.SOUTH);
}
public Datastream getDatastream() {
return m_ds;
}
}
protected class PurgeButtonListener
implements ActionListener {
Datastream[] m_versions;
Object[] m_dateStrings;
HashMap<String, Integer> m_dsIndex;
public PurgeButtonListener(Datastream[] versions) {
m_versions = versions;
m_dateStrings = new Object[versions.length];
m_dsIndex = new HashMap<String, Integer>();
for (int i = 0; i < versions.length; i++) {
m_dateStrings[i] = versions[i].getCreateDate();
m_dsIndex.put(versions[i].getCreateDate(), new Integer(i));
}
}
public void actionPerformed(ActionEvent evt) {
int sIndex1 = 0;
int sIndex2 = 0;
boolean canceled = false;
if (m_versions.length > 1) {
String defaultValue = evt.getActionCommand(); // default date string
PurgeDataStreamDialog purgeDialog =
new PurgeDataStreamDialog(Administrator.getInstance(),
m_versions[0].getID(),
defaultValue,
m_dateStrings);
if (purgeDialog.isCanceled()) {
canceled = true;
} else {
sIndex1 =
(m_dsIndex.get(purgeDialog.getStartDate()))
.intValue();
sIndex2 =
(m_dsIndex.get(purgeDialog.getEndDate()))
.intValue();
}
}
if (!canceled) {
// do warning
boolean removeAll = false;
String detail;
if (sIndex1 == 0 && sIndex2 == m_dsIndex.size() - 1) {
detail = "the entire datastream.";
removeAll = true;
} else if (sIndex1 == sIndex2) {
detail = "one version of the datastream.";
} else {
int num = sIndex2 - sIndex1 + 1;
detail = "" + num + " versions of the datastream.";
}
int n =
JOptionPane
.showOptionDialog(Administrator.getDesktop(),
"This will permanently remove "
+ detail
+ "\n"
+ "Are you sure you want to do this?",
"Confirmation",
JOptionPane.YES_NO_OPTION,
JOptionPane.WARNING_MESSAGE,
null, //don't use a custom Icon
new Object[] {"Yes", "No"}, //the titles of buttons
"Yes"); //default button title
if (n == 0) {
try {
Administrator.APIM
.purgeDatastream(m_pid,
m_versions[sIndex1].getID(),
m_versions[sIndex2]
.getCreateDate(),
m_versions[sIndex1]
.getCreateDate(),
"DatastreamPane generated this logMessage.", // DEFAULT_LOGMESSAGE
false); // DEFAULT_FORCE_PURGE
if (removeAll) {
m_owner.remove(m_versions[0].getID());
m_done = true;
} else {
m_owner.refresh(m_versions[0].getID());
m_done = true;
}
} catch (Exception e) {
Administrator
.showErrorDialog(Administrator.getDesktop(),
"Purge error",
e.getMessage(),
e);
}
}
}
}
}
public class PurgeDataStreamDialog
extends JDialog
implements ActionListener {
private static final long serialVersionUID = 1L;
Object startDate, endDate;
boolean canceled;
private final JList list;
public PurgeDataStreamDialog(JFrame parent,
String datastreamName,
String defaultVal,
Object[] dateStrings) {
super(parent, "Purge Datastream", true);
JLabel label =
new JLabel("Choose versions of datastream "
+ datastreamName + " to purge:");
getContentPane().add(label, BorderLayout.NORTH);
label.setBorder(new EmptyBorder(10, 10, 0, 10));
list = new JList(dateStrings);
list.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
JScrollPane scroll = new JScrollPane(list);
scroll
.setBorder(new CompoundBorder(new EmptyBorder(10,
10,
10,
10),
new LineBorder(Color.BLACK)));
getContentPane().add(scroll, BorderLayout.CENTER);
for (int i = 0; i < dateStrings.length; i++) {
if (dateStrings[i].toString().equals(defaultVal)) {
list.setSelectionInterval(i, i);
}
}
JPanel buttons = new JPanel();
getContentPane().add(buttons, BorderLayout.SOUTH);
JButton purge = new JButton("Purge");
purge.addActionListener(this);
JButton cancel = new JButton("Cancel");
cancel.addActionListener(this);
buttons.add(purge);
buttons.add(cancel);
list.setSize(500, 600);
pack();
setLocation(Administrator.getInstance().getCenteredPos(getWidth(),
getHeight()));
canceled = true;
setVisible(true);
}
public void actionPerformed(ActionEvent e) {
if (e.getActionCommand() == "Purge") {
canceled = false;
Object sel[] = list.getSelectedValues();
startDate = sel[0];
endDate = sel[sel.length - 1];
setVisible(false);
}
if (e.getActionCommand() == "Cancel") {
canceled = true;
setVisible(false);
}
}
public Object getEndDate() {
return endDate;
}
public Object getStartDate() {
return startDate;
}
public boolean isCanceled() {
return canceled;
}
}
public class ExportActionListener
implements ActionListener {
Datastream m_ds;
public ExportActionListener(Datastream ds) {
m_ds = ds;
}
public void actionPerformed(ActionEvent evt) {
try {
FileDialog dlg =
new FileDialog(Administrator.INSTANCE,
"Export Datastream Content to...",
FileDialog.SAVE);
if (Administrator.getLastDir() != null) {
dlg.setDirectory(Administrator.getLastDir().getPath());
}
dlg.setVisible(true);
if (dlg.getFile() != null) {
File file =
new File(new File(dlg.getDirectory()), dlg
.getFile());
LOG.debug("Exporting to " + file.getPath());
Administrator.setLastDir(file.getParentFile()); // remember the dir for next time
Administrator.DOWNLOADER
.getDatastreamContent(m_pid,
m_ds.getID(),
m_ds.getCreateDate(),
new FileOutputStream(file));
}
} catch (Exception e) {
Administrator.showErrorDialog(Administrator.getDesktop(),
"Content Export Failure",
e.getMessage(),
e);
}
}
}
public String getCustomMimeType(Datastream ds) {
String dsMimetype = ds.getMIMEType();
if (ds.getID().equals("RELS-EXT")) {
dsMimetype = "application/rdf+xml";
}
return dsMimetype;
}
public InputStream getDatastreamContent(String pid,
String id,
String createDate)
throws IOException {
return Administrator.DOWNLOADER.getDatastreamContent(pid,
id,
createDate);
}
}