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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 specific language governing permissions and
* limitations under the License.
*/
package org.apache.cassandra.utils;
import java.io.IOException;
import java.net.InetAddress;
import java.nio.ByteBuffer;
import java.nio.charset.CharacterCodingException;
import java.nio.charset.StandardCharsets;
import java.util.Map;
import java.util.Optional;
import java.util.TreeMap;
import com.google.common.primitives.Ints;
import org.junit.Assert;
import org.junit.Test;
import org.apache.cassandra.db.marshal.*;
import org.apache.cassandra.dht.*;
import org.apache.cassandra.config.Config;
import org.apache.cassandra.config.DatabaseDescriptor;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
public class FBUtilitiesTest
{
@Test
public void testCompareByteSubArrays()
{
ByteBuffer bytes = ByteBuffer.allocate(16);
// handle null
assert ByteBufferUtil.compareSubArrays(
null, 0, null, 0, 0) == 0;
assert ByteBufferUtil.compareSubArrays(
null, 0, ByteBufferUtil.bytes(524255231), 0, 4) == -1;
assert ByteBufferUtil.compareSubArrays(
ByteBufferUtil.bytes(524255231), 0, null, 0, 4) == 1;
// handle comparisons
System.arraycopy(Ints.toByteArray(524255231), 0, bytes.array(), 3, 4);
assert ByteBufferUtil.compareSubArrays(
bytes, 3, ByteBufferUtil.bytes(524255231), 0, 4) == 0;
assert ByteBufferUtil.compareSubArrays(
bytes, 3, ByteBufferUtil.bytes(524255232), 0, 4) == -1;
assert ByteBufferUtil.compareSubArrays(
bytes, 3, ByteBufferUtil.bytes(524255230), 0, 4) == 1;
// check that incorrect length throws exception
try
{
assert ByteBufferUtil.compareSubArrays(
bytes, 3, ByteBufferUtil.bytes(524255231), 0, 24) == 0;
fail("Should raise an AssertionError.");
} catch (AssertionError ae)
{
}
try
{
assert ByteBufferUtil.compareSubArrays(
bytes, 3, ByteBufferUtil.bytes(524255231), 0, 12) == 0;
fail("Should raise an AssertionError.");
} catch (AssertionError ae)
{
}
}
@Test
public void testToString()
{
// null turns to empty string
assertEquals("", FBUtilities.toString(null));
Map<String, String> map = new TreeMap<>();
// empty map turns to empty string
assertEquals("", FBUtilities.toString(map));
map.put("aaa", "bbb");
assertEquals("aaa:bbb", FBUtilities.toString(map));
map.put("ccc", "ddd");
assertEquals("aaa:bbb, ccc:ddd", FBUtilities.toString(map));
}
@Test(expected=CharacterCodingException.class)
public void testDecode() throws IOException
{
ByteBuffer bytes = ByteBuffer.wrap(new byte[]{(byte)0xff, (byte)0xfe});
ByteBufferUtil.string(bytes, StandardCharsets.UTF_8);
}
private static void assertPartitioner(String name, Class expected)
{
Assert.assertTrue(String.format("%s != %s", name, expected.toString()),
expected.isInstance(FBUtilities.newPartitioner(name)));
}
/**
* Check that given a name, the correct partitioner instance is created.
*
* If the assertions in this test start failing, it likely means the sstabledump/sstablemetadata tools will
* also fail to read existing sstables.
*/
@Test
public void testNewPartitionerNoArgConstructors()
{
assertPartitioner("ByteOrderedPartitioner", ByteOrderedPartitioner.class);
assertPartitioner("LengthPartitioner", LengthPartitioner.class);
assertPartitioner("Murmur3Partitioner", Murmur3Partitioner.class);
assertPartitioner("OrderPreservingPartitioner", OrderPreservingPartitioner.class);
assertPartitioner("RandomPartitioner", RandomPartitioner.class);
assertPartitioner("org.apache.cassandra.dht.ByteOrderedPartitioner", ByteOrderedPartitioner.class);
assertPartitioner("org.apache.cassandra.dht.LengthPartitioner", LengthPartitioner.class);
assertPartitioner("org.apache.cassandra.dht.Murmur3Partitioner", Murmur3Partitioner.class);
assertPartitioner("org.apache.cassandra.dht.OrderPreservingPartitioner", OrderPreservingPartitioner.class);
assertPartitioner("org.apache.cassandra.dht.RandomPartitioner", RandomPartitioner.class);
}
/**
* Check that we can instantiate local partitioner correctly and that we can pass the correct type
* to it as a constructor argument.
*
* If the assertions in this test start failing, it likely means the sstabledump/sstablemetadata tools will
* also fail to read existing sstables.
*/
@Test
public void testNewPartitionerLocalPartitioner()
{
for (String name : new String[] {"LocalPartitioner", "org.apache.cassandra.dht.LocalPartitioner"})
for (AbstractType<?> type : new AbstractType<?>[] {UUIDType.instance, ListType.getInstance(Int32Type.instance, true)})
{
IPartitioner partitioner = FBUtilities.newPartitioner(name, Optional.of(type));
Assert.assertTrue(String.format("%s != LocalPartitioner", partitioner.toString()),
LocalPartitioner.class.isInstance(partitioner));
Assert.assertEquals(partitioner.partitionOrdering(), type);
}
}
@Test
public void testGetBroadcastRpcAddress() throws Exception
{
//When both rpc_address and broadcast_rpc_address are null, it should return the local address (from DD.applyAddressConfig)
FBUtilities.reset();
Config testConfig = DatabaseDescriptor.loadConfig();
testConfig.rpc_address = null;
testConfig.broadcast_rpc_address = null;
DatabaseDescriptor.applyAddressConfig(testConfig);
assertEquals(FBUtilities.getLocalAddress(), FBUtilities.getBroadcastRpcAddress());
//When rpc_address is defined and broadcast_rpc_address is null, it should return the rpc_address
FBUtilities.reset();
testConfig.rpc_address = "127.0.0.2";
testConfig.broadcast_rpc_address = null;
DatabaseDescriptor.applyAddressConfig(testConfig);
assertEquals(InetAddress.getByName("127.0.0.2"), FBUtilities.getBroadcastRpcAddress());
//When both rpc_address and broadcast_rpc_address are defined, it should return broadcast_rpc_address
FBUtilities.reset();
testConfig.rpc_address = "127.0.0.2";
testConfig.broadcast_rpc_address = "127.0.0.3";
DatabaseDescriptor.applyAddressConfig(testConfig);
assertEquals(InetAddress.getByName("127.0.0.3"), FBUtilities.getBroadcastRpcAddress());
FBUtilities.reset();
}
}