/*******************************************************************************
* Copyright (c) 2007 Jeff Mesnil
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*******************************************************************************/
package net.jmesnil.jmx.ui.internal.editors;
import java.util.ArrayList;
import java.util.List;
import javax.management.Notification;
import javax.management.NotificationListener;
import net.jmesnil.jmx.core.MBeanInfoWrapper;
import net.jmesnil.jmx.ui.JMXUIActivator;
import net.jmesnil.jmx.ui.internal.JMXImages;
import net.jmesnil.jmx.ui.Messages;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.ui.forms.IManagedForm;
import org.eclipse.ui.forms.editor.FormEditor;
import org.eclipse.ui.forms.editor.FormPage;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.forms.widgets.ScrolledForm;
public class NotificationsPage extends FormPage {
private final class NotificationLabelProvider extends LabelProvider
implements ITableLabelProvider {
public Image getColumnImage(Object element, int columnIndex) {
return null;
}
public String getColumnText(Object element, int columnIndex) {
Notification notification = (Notification) element;
if (columnIndex == 0) {
return Long.toString(notification.getTimeStamp());
}
if (columnIndex == 1) {
return notification.getType();
}
if (columnIndex == 2) {
return notification.getMessage();
}
if (columnIndex == 3) {
if (notification.getUserData() != null)
return notification.getUserData().toString();
else
return ""; //$NON-NLS-1$
}
if (columnIndex == 4) {
return Long.toString(notification.getSequenceNumber());
}
if (columnIndex == 5) {
return notification.getSource().toString();
}
return super.getText(element);
}
}
static final String ID = "notifications"; //$NON-NLS-1$
private MBeanInfoWrapper wrapper;
private Action subscribeAction;
private NotificationListener listener;
@SuppressWarnings("unchecked")//$NON-NLS-1$
private List notifications = new ArrayList();
private TableViewer viewer;
public NotificationsPage(FormEditor editor) {
super(editor, ID, Messages.NotificationsPage_title);
MBeanEditorInput input = (MBeanEditorInput) editor.getEditorInput();
this.wrapper = input.getWrapper();
}
private void createToolBarActions(ScrolledForm form) {
Action clearAction = new Action("Clear", Action.AS_PUSH_BUTTON) { //$NON-NLS-1$
public void run() {
notifications.clear();
viewer.refresh();
}
};
clearAction
.setToolTipText(Messages.NotificationsPage_clearActionToolTip);
JMXImages.setLocalImageDescriptors(clearAction, "clear_co.gif"); //$NON-NLS-1$
subscribeAction = new Action("Subscribe", Action.AS_CHECK_BOX) { //$NON-NLS-1$
public void run() {
toogleSubcription();
}
};
subscribeAction
.setToolTipText(Messages.NotificationsPage_subscribeActionToolTip);
subscribeAction.setEnabled(wrapper.isNotificationBroadcaster());
form.getToolBarManager().add(clearAction);
form.getToolBarManager().add(subscribeAction);
form.updateToolBar();
}
private void toogleSubcription() {
if (subscribeAction.isChecked()) {
try {
wrapper.getMBeanServerConnection().addNotificationListener(
wrapper.getObjectName(), listener, null, null);
} catch (Exception e) {
JMXUIActivator.log(IStatus.ERROR, e.getMessage(), e);
}
} else {
try {
wrapper.getMBeanServerConnection().removeNotificationListener(
wrapper.getObjectName(), listener);
} catch (Exception e) {
JMXUIActivator.log(IStatus.ERROR, e.getMessage(), e);
}
}
}
protected void createFormContent(IManagedForm managedForm) {
FormToolkit toolkit = managedForm.getToolkit();
ScrolledForm form = managedForm.getForm();
form.setText(wrapper.getObjectName().getCanonicalName());
createToolBarActions(form);
form.getForm().setSeparatorVisible(true);
Composite body = form.getBody();
body.setLayout(new GridLayout(1, false));
Table table = toolkit.createTable(body, SWT.FULL_SELECTION);
toolkit.paintBordersFor(body);
GridDataFactory.fillDefaults().grab(true, true).applyTo(table);
createColumns(table);
table.setHeaderVisible(true);
table.setLinesVisible(true);
viewer = new TableViewer(table);
viewer.setLabelProvider(new NotificationLabelProvider());
viewer.setContentProvider(new IStructuredContentProvider() {
@SuppressWarnings("unchecked")//$NON-NLS-1$
public Object[] getElements(Object inputElement) {
return (Notification[]) notifications
.toArray(new Notification[notifications.size()]);
}
public void dispose() {
}
public void inputChanged(Viewer viewer, Object oldInput,
Object newInput) {
}
});
viewer.setInput(notifications);
listener = new NotificationListener() {
@SuppressWarnings("unchecked")//$NON-NLS-1$
public void handleNotification(final Notification notification,
Object handback) {
// add notification at the head so that the more recent
// appears at the top of the table (issue #25)
notifications.add(0, notification);
viewer.getControl().getDisplay().asyncExec(new Runnable() {
public void run() {
viewer.refresh();
}
});
}
};
}
private void createColumns(final Table table) {
final TableColumn timestampColumn = new TableColumn(table, SWT.NONE);
timestampColumn.setText(Messages.NotificationsPage_timestamp);
timestampColumn.setWidth(100);
final TableColumn typeColumn = new TableColumn(table, SWT.NONE);
typeColumn.setText(Messages.NotificationsPage_type);
typeColumn.setWidth(200);
final TableColumn messageColumn = new TableColumn(table, SWT.NONE);
messageColumn.setText(Messages.NotificationsPage_message);
messageColumn.setWidth(300);
final TableColumn userDataColumn = new TableColumn(table, SWT.NONE);
userDataColumn.setText(Messages.NotificationsPage_userData);
userDataColumn.setWidth(100);
final TableColumn sequenceNumberColumn = new TableColumn(table, SWT.NONE);
sequenceNumberColumn.setText(Messages.NotificationsPage_sequenceNumber);
sequenceNumberColumn.setWidth(100);
final TableColumn sourceColumn = new TableColumn(table, SWT.NONE);
sourceColumn.setText(Messages.NotificationsPage_source);
sourceColumn.setWidth(100);
}
}