BundleClassResolver.java

/*******************************************************************************
 * Copyright (c) 2015 Composent, Inc. 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: Composent, Inc. - initial API and implementation
 ******************************************************************************/
package org.eclipse.ecf.core.util;

import java.io.ObjectStreamClass;
import org.eclipse.core.runtime.Assert;
import org.osgi.framework.Bundle;

/**
 * @since 3.7
 */
public class BundleClassResolver implements IClassResolver {

	private final Bundle bundle;

	public BundleClassResolver(Bundle b) {
		Assert.isNotNull(b);
		this.bundle = b;
	}

	@SuppressWarnings("unused")
	protected void verifyClass(ObjectStreamClass desc) throws ClassNotFoundException {
		// do nothing by default
	}

	public Class<?> resolveClass(ObjectStreamClass desc) throws ClassNotFoundException {

		verifyClass(desc);

		try {
			return this.bundle.loadClass(desc.getName());
		} catch (IllegalStateException e) {
			throw new ClassNotFoundException("Cannot load class=" + desc + " because bundle=" + this.bundle.getSymbolicName() + " has been uninstalled"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
		} catch (ClassNotFoundException e) {
			return ClassResolverObjectInputStream.resolvePrimitiveClass(desc, e);
		}
	}

}