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/**
* Copyright (c) 2004 - 2011 Eike Stepper (Berlin, Germany) 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:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.net4j.util.factory;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
/**
* @author Eike Stepper
* @noextend This class is not intended to be subclassed by clients.
*/
public class FactoryDescriptor extends Factory
{
private static final String ATTR_PRODUCT_GROUP = "productGroup"; //$NON-NLS-1$
private static final String ATTR_TYPE = "type"; //$NON-NLS-1$
private static final String ATTR_CLASS = "class"; //$NON-NLS-1$
private IConfigurationElement configurationElement;
public FactoryDescriptor(IConfigurationElement configurationElement)
{
super(createFactoryKey(configurationElement));
this.configurationElement = configurationElement;
}
public IConfigurationElement getConfigurationElement()
{
return configurationElement;
}
public IFactory createFactory()
{
try
{
return (IFactory)configurationElement.createExecutableExtension(ATTR_CLASS);
}
catch (CoreException ex)
{
throw new FactoryCreationException(ex);
}
}
public Object create(String description)
{
throw new UnsupportedOperationException();
}
@Override
public String getDescriptionFor(Object product)
{
throw new UnsupportedOperationException();
}
private static FactoryKey createFactoryKey(IConfigurationElement element)
{
String productGroup = element.getAttribute(ATTR_PRODUCT_GROUP);
String type = element.getAttribute(ATTR_TYPE);
return new FactoryKey(productGroup, type);
}
}
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