org.sweble.wikitext.engine.ExpansionException Maven / Gradle / Ivy

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A minimal engine using the Sweble Wikitext Parser to process articles in the context of a MediaWiki-like configuration.

There is a newer version: 3.1.9

/**
 * Copyright 2011 The Open Source Research Group,
 *                University of Erlangen-Nürnberg
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.sweble.wikitext.engine;

import de.fau.cs.osr.utils.visitor.VisitingException;

/**
 * A wrapper for exceptions that occurred during the expansion process.
 */
public class ExpansionException
		extends
			RuntimeException
{

	private static final long serialVersionUID = 1L;

	// =========================================================================

	public ExpansionException(Throwable cause)
	{
		super(unwrap(cause));
	}

	// =========================================================================

	private static Throwable unwrap(Throwable t)
	{
		while (t instanceof ExpansionException
				|| t instanceof VisitingException)
			t = t.getCause();
		return t;
	}
}