dcapwell commented on a change in pull request #1146: URL: https://github.com/apache/cassandra/pull/1146#discussion_r692408649
########## File path: src/java/org/apache/cassandra/config/SubnetGroups.java ########## @@ -0,0 +1,107 @@ +/* + * 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.cassandra.config; + +import java.net.InetAddress; +import java.net.InetSocketAddress; +import java.net.SocketAddress; +import java.util.Collections; +import java.util.List; +import java.util.Objects; +import java.util.Set; +import java.util.stream.Collectors; + +import com.google.common.collect.ImmutableSet; + +import inet.ipaddr.IPAddressNetwork; +import inet.ipaddr.IPAddressString; + +/** + * When a group of subnets are needed, this class can be used to represent the group as if it was a single subnet. + * + * This class supports IPV4 and IPV6 subnets + */ +public class SubnetGroups +{ + public Set<Group> subnets = Collections.emptySet(); + + public SubnetGroups() + { + } + + public SubnetGroups(List<String> values) + { + this.subnets = ImmutableSet.copyOf(values.stream().map(Group::new).collect(Collectors.toSet())); + } + + public boolean contains(SocketAddress address) + { + if (address instanceof InetSocketAddress) + { + return contains(((InetSocketAddress) address).getAddress()); + } + throw new IllegalArgumentException("Unsupported socket address type: " + (address == null ? null : address.getClass())); + } + + public boolean contains(InetAddress address) + { + for (Group group : subnets) + { + if (group.contains(address)) + { + return true; + } + } + return false; + } + + public static class Group + { + private static final IPAddressNetwork.IPAddressGenerator IP_ADDRESS_GENERATOR = new IPAddressNetwork.IPAddressGenerator(); + + private final IPAddressString subnet; + + public Group(String range) + { + subnet = new IPAddressString(range); + } + + public boolean contains(InetAddress address) + { + return subnet.contains(IP_ADDRESS_GENERATOR.from(address).toAddressString()); + } + + public boolean equals(Object o) + { + if (this == o) return true; + if (o == null || getClass() != o.getClass()) return false; + Group group = (Group) o; + return Objects.equals(subnet, group.subnet); Review comment: was auto generated by Intellij =D -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
