/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.nifi.cluster.firewall;
/**
* Defines the interface for restricting external client connections to a set of hosts or IPs.
*/
public interface ClusterNodeFirewall {
/**
* Returns true if the given host or IP is permissible through the firewall; false otherwise.
*
* If an IP is given, then it must be formatted in dotted decimal notation.
*
* @param hostOrIp host
* @return true if permissible
*/
boolean isPermissible(String hostOrIp);
}