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/*
 * GRAKN.AI - THE KNOWLEDGE GRAPH
 * Copyright (C) 2018 Grakn Labs Ltd
 *
 * 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 .
 */

package ai.grakn.exception;

import ai.grakn.GraknTx;
import ai.grakn.util.ErrorMessage;

import java.util.List;

/**
 * 
 *     Broken Knowledge Base Exception
 * 
 *
 * 
 *     This exception is thrown on {@link GraknTx#commit()} when the graph does not comply with the grakn
 *     validation rules. For a complete list of these rules please refer to the documentation
 * 
 *
 * @author fppt
 */
public class InvalidKBException extends GraknException{

    private final String NAME = "InvalidKBException";

    private InvalidKBException(String message) {
        super(message);
    }

    @Override
    public String getName() {
        return NAME;
    }

    public static InvalidKBException create(String message) {
        return new InvalidKBException(message);
    }

    /**
     * Thrown on commit when validation errors are found
     */
    public static InvalidKBException validationErrors(List errors){
        StringBuilder message = new StringBuilder();
        message.append(ErrorMessage.VALIDATION.getMessage(errors.size()));
        for (String s : errors) {
            message.append(s);
        }
        return create(message.toString());
    }
}