| /* |
| * 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.simulator.cluster; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.DataInputStream; |
| import java.io.IOException; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.stream.Collectors; |
| |
| import org.apache.cassandra.dht.Range; |
| import org.apache.cassandra.dht.Token; |
| import org.apache.cassandra.gms.ApplicationState; |
| import org.apache.cassandra.gms.EndpointState; |
| import org.apache.cassandra.gms.Gossiper; |
| import org.apache.cassandra.gms.TokenSerializer; |
| import org.apache.cassandra.gms.VersionedValue; |
| |
| import static org.apache.cassandra.config.DatabaseDescriptor.getPartitioner; |
| import static org.apache.cassandra.utils.FBUtilities.getBroadcastAddressAndPort; |
| |
| public class Utils |
| { |
| static Token currentToken() |
| { |
| EndpointState epState = Gossiper.instance.getEndpointStateForEndpoint(getBroadcastAddressAndPort()); |
| VersionedValue value = epState.getApplicationState(ApplicationState.TOKENS); |
| try (DataInputStream in = new DataInputStream(new ByteArrayInputStream(value.toBytes()))) |
| { |
| return TokenSerializer.deserialize(getPartitioner(), in).iterator().next(); |
| } |
| catch (IOException e) |
| { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| static List<Token> parseTokens(Collection<String> tokens) |
| { |
| return tokens.stream() |
| .map(Utils::parseToken) |
| .collect(Collectors.toList()); |
| } |
| |
| static List<Range<Token>> parseTokenRanges(Collection<Map.Entry<String, String>> tokenRanges) |
| { |
| return tokenRanges.stream() |
| .map(Utils::parseTokenRange) |
| .collect(Collectors.toList()); |
| } |
| |
| static Token parseToken(String token) |
| { |
| return getPartitioner().getTokenFactory().fromString(token); |
| } |
| |
| static Range<Token> parseTokenRange(Map.Entry<String, String> tokenRange) |
| { |
| return parseTokenRange(tokenRange.getKey(), tokenRange.getValue()); |
| } |
| |
| static Range<Token> parseTokenRange(String exclusiveLowerBound, String inclusiveUpperBound) |
| { |
| return new Range<>(parseToken(exclusiveLowerBound), parseToken(inclusiveUpperBound)); |
| } |
| } |