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* 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
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*/
package org.apache.cassandra.locator;
import java.net.InetAddress;
import java.util.ArrayList;
import java.util.List;
import com.google.common.collect.Iterators;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
import org.apache.cassandra.CleanupHelper;
import static org.apache.cassandra.Util.token;
import org.apache.cassandra.dht.Token;
import org.apache.cassandra.locator.TokenMetadata;
import org.apache.cassandra.service.StorageService;
public class TokenMetadataTest
{
public final static String ONE = "1";
public final static String SIX = "6";
public static ArrayList<Token> RING;
@BeforeClass
public static void beforeClass() throws Throwable
{
TokenMetadata tmd = StorageService.instance.getTokenMetadata();
tmd.updateNormalToken(token(ONE), InetAddress.getByName("127.0.0.1"));
tmd.updateNormalToken(token(SIX), InetAddress.getByName("127.0.0.6"));
RING = tmd.sortedTokens();
}
private void testRingIterator(String start, boolean includeMin, String... expected)
{
ArrayList<Token> actual = new ArrayList<Token>();
Iterators.addAll(actual, TokenMetadata.ringIterator(RING, token(start), includeMin));
assertEquals(actual.toString(), expected.length, actual.size());
for (int i = 0; i < expected.length; i++)
assertEquals("Mismatch at index " + i + ": " + actual, token(expected[i]), actual.get(i));
}
@Test
public void testRingIterator()
{
testRingIterator("2", false, "6", "1");
testRingIterator("7", false, "1", "6");
testRingIterator("0", false, "1", "6");
testRingIterator("", false, "1", "6");
}
@Test
public void testRingIteratorIncludeMin()
{
testRingIterator("2", true, "6", "", "1");
testRingIterator("7", true, "", "1", "6");
testRingIterator("0", true, "1", "6", "");
testRingIterator("", true, "1", "6", "");
}
}