/*
 * Copyright (c) 2010-2012 The University of Manchester, UK.
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 *
 * * Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 *
 * * Neither the names of The University of Manchester nor the names of its
 *   contributors may be used to endorse or promote products derived from this
 *   software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

package uk.org.taverna.server.client.connection;

import java.net.HttpURLConnection;
import java.net.URI;

/**
 * This exception is thrown if the server returns an internal error code (50x).
 * 
 * @author Robert Haines
 */
public final class InternalServerException extends ServerResponseException {
	private static final long serialVersionUID = 1L;

	private static final String MESSAGE = "The server has suffered an internal error while accessing the requested resource";

	private final String message;

	/**
	 * Construct the exception with the specified {@link URI} that was accessed
	 * and the message from the server passed in.
	 * 
	 * @param uri
	 *            the resource that was accessed when this error occurred.
	 * @param message
	 *            the error message from the server.
	 */
	public InternalServerException(URI uri, String message) {
		super(uri, HttpURLConnection.HTTP_INTERNAL_ERROR, MESSAGE);

		this.message = message;
	}

	/**
	 * Get the error message that accompanies this response. It may hold further
	 * details of what went wrong.
	 * 
	 * @return the message from the server about the internal error that it
	 *         suffered.
	 */
	public String getErrorMessage() {
		return message;
	}
}
