CertificateLabelProvider.java

/*******************************************************************************
 * Copyright (c) 2008 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/

package org.eclipse.buckminster.jnlp.p2.ui.certificates;

import java.security.cert.Certificate;
import java.security.cert.X509Certificate;

import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ILabelProviderListener;
import org.eclipse.jface.viewers.TreeNode;
import org.eclipse.swt.graphics.Image;

/**
 * A label provider that displays X509 certificates.
 */
public class CertificateLabelProvider implements ILabelProvider
{

	public void addListener(ILabelProviderListener listener)
	{
		// do nothing
	}

	public void dispose()
	{
		// do nothing
	}

	public Image getImage(Object element)
	{
		return null;
	}

	public String getText(Object element)
	{
		Certificate cert = null;
		if(element instanceof TreeNode)
		{
			cert = (Certificate)((TreeNode)element).getValue();
		}
		if(cert != null)
		{
			X500PrincipalHelper principalHelper = new X500PrincipalHelper(
					((X509Certificate)cert).getSubjectX500Principal());
			return principalHelper.getCN() + "; " + principalHelper.getOU() + "; " + principalHelper.getO(); //$NON-NLS-1$ //$NON-NLS-2$
		}
		return ""; //$NON-NLS-1$
	}

	public boolean isLabelProperty(Object element, String property)
	{
		return false;
	}

	public void removeListener(ILabelProviderListener listener)
	{
		// do nothing
	}

}