/**
 * Copyright (C) 2001-2017 by RapidMiner and the contributors
 * 
 * Complete list of developers available at our web site:
 * 
 * http://rapidminer.com
 * 
 * This program is free software: you can redistribute it and/or modify it under the terms of the
 * GNU Affero General Public License as published by the Free Software Foundation, either version 3
 * of the License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License along with this program.
 * If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.operator;

/**
 * Exception class whose instances are thrown during the creation of operators.
 * 
 * @author Ingo Mierswa, Peter B. Volk ingomierswa Exp $
 */
public class OperatorCreationException extends Exception {

	private static final long serialVersionUID = 805882946295847566L;

	public static final int INSTANTIATION_ERROR = 0;

	public static final int ILLEGAL_ACCESS_ERROR = 1;

	public static final int NO_CONSTRUCTOR_ERROR = 2;

	public static final int CONSTRUCTION_ERROR = 3;

	public static final int NO_DESCRIPTION_ERROR = 4;

	public static final int NO_UNIQUE_DESCRIPTION_ERROR = 5;

	public static final int OPERATOR_DISABLED_ERROR = 6;

	/**
	 * Code must be one of the constants of this class. The classname should define the operator.
	 */
	public OperatorCreationException(int code, String className, Throwable cause) {
		super(createMessage(code, className, cause), cause);
	}

	private static String createMessage(int code, String className, Throwable cause) {
		switch (code) {
			case INSTANTIATION_ERROR:
				return "Cannot instantiate '" + className + "': " + cause.getMessage();
			case ILLEGAL_ACCESS_ERROR:
				return "Cannot access '" + className + "':" + cause.getMessage();
			case NO_CONSTRUCTOR_ERROR:
				return "No public one-argument constructor for operator descriptions: '" + className + "': "
						+ cause.getMessage();
			case CONSTRUCTION_ERROR:
				return "Operator cannot be constructed: '" + className + "': " + cause.getCause().getMessage();
			case NO_DESCRIPTION_ERROR:
				return "No operator description object given for '" + className
						+ (cause != null ? "': " + cause.getMessage() : "'");
			case NO_UNIQUE_DESCRIPTION_ERROR:
				return "No unique operator description object available for class '" + className + "': "
						+ cause.getMessage();
			case OPERATOR_DISABLED_ERROR:
				return "Operator " + className + " is disabled.";
			default:
				return "Error during operator creation of '" + className + "': "
						+ ((cause != null) ? cause.getMessage() : "");
		}
	}
}