Copyright (c) 2000, 2013 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2000, 2013 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.debug.internal.core.sourcelookup;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.debug.core.DebugPlugin;
import org.eclipse.debug.core.sourcelookup.ISourceContainer;
import org.eclipse.debug.core.sourcelookup.ISourceContainerType;
import org.eclipse.debug.core.sourcelookup.ISourceContainerTypeDelegate;
import org.eclipse.debug.internal.core.IConfigurationElementConstants;

Proxy to contributed source container type extension.
See Also:
IConfigurationElementConstants
Since:
3.0/**
 * Proxy to contributed source container type extension.
 *
 * @see IConfigurationElementConstants
 *
 * @since 3.0
 */
public class SourceContainerType implements ISourceContainerType {

	// lazily instantiated delegate
	private ISourceContainerTypeDelegate fDelegate = null;

	// extension definition
	private IConfigurationElement fElement = null;

	
Constructs a source container type on the given extension.
Params:
element – extension definition/**
	 * Constructs a source container type on the given extension.
	 *
	 * @param element extension definition
	 */
	public SourceContainerType(IConfigurationElement element) {
		fElement = element;
	}

	@Override
	public ISourceContainer createSourceContainer(String memento) throws CoreException {
		return getDelegate().createSourceContainer(memento);
	}

	@Override
	public String getMemento(ISourceContainer container) throws CoreException {
		if (this.equals(container.getType())) {
			return getDelegate().getMemento(container);
		}
		IStatus status = new Status(IStatus.ERROR, DebugPlugin.getUniqueIdentifier(), DebugPlugin.ERROR, SourceLookupMessages.SourceContainerType_0, null);
		throw new CoreException(status);
	}

	@Override
	public String getName() {
		return fElement.getAttribute(IConfigurationElementConstants.NAME);
	}

	@Override
	public String getId() {
		return fElement.getAttribute(IConfigurationElementConstants.ID);
	}

	
Lazily instantiates and returns the underlying source container type.
Throws:
CoreException – if unable to instantiate
Returns:
the ISourceContainerTypeDelegate/**
	 * Lazily instantiates and returns the underlying source container type.
	 * @return the {@link ISourceContainerTypeDelegate}
	 * @exception CoreException if unable to instantiate
	 */
	private ISourceContainerTypeDelegate getDelegate() throws CoreException {
		if (fDelegate == null) {
			fDelegate = (ISourceContainerTypeDelegate) fElement.createExecutableExtension(IConfigurationElementConstants.CLASS);
		}
		return fDelegate;
	}

	@Override
	public String getDescription() {
		return fElement.getAttribute(IConfigurationElementConstants.DESCRIPTION);
	}
}