/*******************************************************************************
* 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
*
* Contributors:
* Benjamin Walstrum (issue #24)
*******************************************************************************/
package net.jmesnil.jmx.ui.internal.editors;
import java.io.PrintWriter;
import java.io.StringWriter;
import javax.management.Attribute;
import javax.management.MBeanAttributeInfo;
import javax.management.MBeanServerConnection;
import net.jmesnil.jmx.resources.MBeanAttributeInfoWrapper;
import net.jmesnil.jmx.ui.JMXUIActivator;
import net.jmesnil.jmx.ui.extensions.IWritableAttributeHandler;
import net.jmesnil.jmx.ui.internal.JMXImages;
import net.jmesnil.jmx.ui.internal.Messages;
import net.jmesnil.jmx.ui.internal.StringUtils;
import net.jmesnil.jmx.ui.internal.controls.AttributeControlFactory;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.forms.AbstractFormPart;
import org.eclipse.ui.forms.IDetailsPage;
import org.eclipse.ui.forms.IFormPart;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.forms.widgets.Section;
import org.eclipse.ui.forms.widgets.TableWrapData;
import org.eclipse.ui.forms.widgets.TableWrapLayout;
public class AttributeDetails extends AbstractFormPart implements IDetailsPage {
private IFormPart masterSection;
private FormToolkit toolkit;
private Label nameLabel;
private Label typeLabel;
private Text descriptionText;
private Label permissionLabel;
private Composite valueComposite;
private MBeanAttributeInfoWrapper wrapper;
private final IWritableAttributeHandler updateAttributeHandler = new IWritableAttributeHandler() {
public void write(Object newValue) {
try {
MBeanServerConnection mbsc = wrapper.getMBeanServerConnection();
String attrName = wrapper.getMBeanAttributeInfo().getName();
Attribute attr = new Attribute(attrName, newValue);
mbsc.setAttribute(wrapper.getObjectName(), attr);
masterSection.refresh();
} catch (Exception e) {
MessageDialog.openError(getManagedForm().getForm().getDisplay()
.getActiveShell(),
Messages.AttributeDetailsSection_errorTitle, e
.getLocalizedMessage());
}
}
};
public AttributeDetails(IFormPart masterSection) {
this.masterSection = masterSection;
}
public void createContents(Composite parent) {
TableWrapLayout layout = new TableWrapLayout();
layout.topMargin = 5;
layout.leftMargin = 5;
layout.rightMargin = 2;
layout.bottomMargin = 2;
parent.setLayout(layout);
toolkit = getManagedForm().getToolkit();
FontData fd[] = parent.getFont().getFontData();
Font bold = new Font(parent.getDisplay(), fd[0].getName(), fd[0]
.getHeight(), SWT.BOLD);
Section section = toolkit.createSection(parent, Section.TITLE_BAR);
section.marginWidth = 10;
section.setText(Messages.AttributeDetails_title);
section.setLayoutData(new TableWrapData(TableWrapData.FILL_GRAB));
Composite container = toolkit.createComposite(section);
section.setClient(container);
GridLayout glayout = new GridLayout();
glayout.marginWidth = glayout.marginHeight = 0;
glayout.numColumns = 2;
glayout.makeColumnsEqualWidth = false;
container.setLayout(glayout);
toolkit.createLabel(container, Messages.name);
nameLabel = toolkit.createLabel(container, ""); //$NON-NLS-1$
nameLabel.setFont(bold);
nameLabel.setLayoutData(newLayoutData());
toolkit.createLabel(container, Messages.type);
typeLabel = toolkit.createLabel(container, ""); //$NON-NLS-1$
typeLabel.setFont(bold);
typeLabel.setLayoutData(newLayoutData());
toolkit.createLabel(container, Messages.description);
descriptionText = toolkit.createText(container, "", SWT.MULTI //$NON-NLS-1$
| SWT.WRAP | SWT.READ_ONLY);
descriptionText.setFont(bold);
descriptionText.setLayoutData(newLayoutData());
toolkit.createLabel(container, Messages.permission);
permissionLabel = toolkit.createLabel(container, ""); //$NON-NLS-1$
permissionLabel.setLayoutData(newLayoutData());
permissionLabel.setFont(bold);
valueComposite = toolkit.createComposite(container);
GridData layoutData = new GridData(GridData.FILL_BOTH);
layoutData.horizontalSpan = 2;
valueComposite.setLayoutData(layoutData);
GridLayout valueLayout = new GridLayout();
valueLayout.marginWidth = 0;
valueLayout.marginHeight = 0;
valueComposite.setLayout(valueLayout);
}
private GridData newLayoutData() {
return new GridData(SWT.FILL, SWT.FILL, false, false);
}
public void selectionChanged(IFormPart part, ISelection selection) {
StructuredSelection structured = (StructuredSelection) selection;
this.wrapper = (MBeanAttributeInfoWrapper) structured.getFirstElement();
update(wrapper);
}
public void update(MBeanAttributeInfoWrapper wrapper) {
MBeanAttributeInfo attrInfo = wrapper.getMBeanAttributeInfo();
String type = attrInfo.getType();
nameLabel.setText(attrInfo.getName());
typeLabel.setText(StringUtils.toString(type));
descriptionText.setText(attrInfo.getDescription());
boolean writable = attrInfo.isWritable();
boolean readable = attrInfo.isReadable();
if (readable && writable) {
permissionLabel.setImage(JMXImages
.get(JMXImages.IMG_OBJS_READ_WRITE));
permissionLabel.setToolTipText(Messages.readWrite);
} else if (readable && !writable) {
permissionLabel.setImage(JMXImages.get(JMXImages.IMG_OBJS_READ));
permissionLabel.setToolTipText(Messages.readOnly);
} else if (writable && !readable) {
permissionLabel.setImage(JMXImages.get(JMXImages.IMG_OBJS_WRITE));
permissionLabel.setToolTipText(Messages.writeOnly);
} else {
permissionLabel.setImage(null);
}
disposeChildren(valueComposite);
try {
Control attrControl = AttributeControlFactory.createControl(
valueComposite, wrapper.getValue(), type,
wrapper.getObjectName().getCanonicalName(), attrInfo.getName(),
writable, updateAttributeHandler, toolkit);
GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);
attrControl.setLayoutData(gd);
attrControl.pack(true);
} catch (Throwable t) {
JMXUIActivator.log(IStatus.ERROR, NLS.bind(
Messages.MBeanAttributeValue_Warning, attrInfo.getName()),
t);
Label errorLabel = toolkit.createLabel(valueComposite,
Messages.unavailable);
errorLabel.setForeground(valueComposite.getDisplay()
.getSystemColor(SWT.COLOR_RED));
GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);
errorLabel.setLayoutData(gd);
Text errorText = toolkit.createText(valueComposite, "", //$NON-NLS-1$
SWT.READ_ONLY | SWT.H_SCROLL | SWT.V_SCROLL | SWT.MULTI);
gd = new GridData(SWT.FILL, SWT.FILL, true, true);
errorText.setLayoutData(gd);
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
t.printStackTrace(pw);
errorText.setText(sw.toString());
} finally {
valueComposite.layout(true, true);
}
}
private void disposeChildren(Composite composite) {
if (composite != null && !composite.isDisposed()) {
Control[] childs = composite.getChildren();
if (childs.length > 0) {
for (int i = 0; i < childs.length; i++) {
childs[i].dispose();
}
}
}
}
}