/* * Licensed to Elasticsearch under one or more contributor * license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright * ownership. Elasticsearch licenses this file to you 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.elasticsearch.bootstrap; /** * Encapsulates a bootstrap check. */ public interface BootstrapCheck { /** * Test if the node fails the check. * * @return {@code true} if the node failed the check */ boolean check(); /** * The error message for a failed check. * * @return the error message on check failure */ String errorMessage(); default boolean alwaysEnforce() { return false; } }