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A library for core classes (Graph, Vertex, Edge, etc.)

There is a newer version: 2.11.0

package io.konig.core;

/*
 * #%L
 * konig-core
 * %%
 * Copyright (C) 2015 - 2016 Gregory McFall
 * %%
 * 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.
 * #L%
 */


import java.util.Collection;

import org.openrdf.model.Resource;
import org.openrdf.model.URI;

public class AmbiguousPreferredClassException extends Exception {
	private static final long serialVersionUID = 1L;
	
	public AmbiguousPreferredClassException(String message) {
		super(message);
	}
	
	public AmbiguousPreferredClassException(Collection collection) {
		super(createMessage(collection));
	}
	
	private static String createMessage(Collection collection) {
		StringBuilder builder = new StringBuilder("The following classes are ambiguous, but no preferred class is defined:");
		for (Vertex v : collection) {
			builder.append(' ');
			Resource id = v.getId();
			if (id instanceof URI) {
				builder.append(((URI) id).getLocalName());
			} else {
				builder.append(id.stringValue());
			}
		}
		
		return builder.toString();
	}

}