org.apache.cassandra.dht.tokenallocator.TokenAllocatorDiagnostics Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of cassandra-all Show documentation
Show all versions of cassandra-all Show documentation
The Apache Cassandra Project develops a highly scalable second-generation distributed database, bringing together Dynamo's fully distributed design and Bigtable's ColumnFamily-based data model.
/*
* 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.dht.tokenallocator;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.NavigableMap;
import java.util.Queue;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Multimap;
import org.apache.cassandra.dht.Token;
import org.apache.cassandra.dht.tokenallocator.TokenAllocatorBase.TokenInfo;
import org.apache.cassandra.dht.tokenallocator.TokenAllocatorBase.UnitInfo;
import org.apache.cassandra.dht.tokenallocator.TokenAllocatorBase.Weighted;
import org.apache.cassandra.dht.tokenallocator.TokenAllocatorEvent.TokenAllocatorEventType;
import org.apache.cassandra.diag.DiagnosticEventService;
/**
* Utility methods for DiagnosticEvent around {@link TokenAllocator} activities.
*/
final class TokenAllocatorDiagnostics
{
private static final DiagnosticEventService service = DiagnosticEventService.instance();
private TokenAllocatorDiagnostics()
{
}
static void noReplicationTokenAllocatorInstanciated(NoReplicationTokenAllocator allocator)
{
if (isEnabled(TokenAllocatorEventType.NO_REPLICATION_AWARE_TOKEN_ALLOCATOR_INSTANCIATED))
service.publish(new TokenAllocatorEvent<>(TokenAllocatorEventType.NO_REPLICATION_AWARE_TOKEN_ALLOCATOR_INSTANCIATED,
allocator, null, null, null, null, null, null, null));
}
static void replicationTokenAllocatorInstanciated(ReplicationAwareTokenAllocator allocator)
{
if (isEnabled(TokenAllocatorEventType.REPLICATION_AWARE_TOKEN_ALLOCATOR_INSTANCIATED))
service.publish(new TokenAllocatorEvent<>(TokenAllocatorEventType.REPLICATION_AWARE_TOKEN_ALLOCATOR_INSTANCIATED,
allocator, null, null, null,null, null, null, null));
}
static void unitedAdded(TokenAllocatorBase allocator, int numTokens,
Queue> sortedUnits, NavigableMap sortedTokens,
List tokens, Unit unit)
{
if (isEnabled(TokenAllocatorEventType.UNIT_ADDED))
service.publish(new TokenAllocatorEvent<>(TokenAllocatorEventType.UNIT_ADDED,
allocator,
numTokens,
ImmutableList.copyOf(sortedUnits),
null,
ImmutableMap.copyOf(sortedTokens),
ImmutableList.copyOf(tokens),
unit,
null));
}
static void unitedAdded(TokenAllocatorBase allocator, int numTokens,
Multimap unitToTokens, NavigableMap sortedTokens,
List tokens, Unit unit)
{
if (isEnabled(TokenAllocatorEventType.UNIT_ADDED))
service.publish(new TokenAllocatorEvent<>(TokenAllocatorEventType.UNIT_ADDED,
allocator,
numTokens,
null,
ImmutableMap.copyOf(unitToTokens.asMap()),
ImmutableMap.copyOf(sortedTokens),
ImmutableList.copyOf(tokens),
unit,
null));
}
static void unitRemoved(TokenAllocatorBase allocator, Unit unit,
Queue> sortedUnits, Map sortedTokens)
{
if (isEnabled(TokenAllocatorEventType.UNIT_REMOVED))
service.publish(new TokenAllocatorEvent<>(TokenAllocatorEventType.UNIT_REMOVED,
allocator,
null,
ImmutableList.copyOf(sortedUnits),
null,
ImmutableMap.copyOf(sortedTokens),
null,
unit,
null));
}
static void unitRemoved(TokenAllocatorBase allocator, Unit unit,
Multimap unitToTokens, Map sortedTokens)
{
if (isEnabled(TokenAllocatorEventType.UNIT_REMOVED))
service.publish(new TokenAllocatorEvent<>(TokenAllocatorEventType.UNIT_REMOVED,
allocator,
null,
null,
ImmutableMap.copyOf(unitToTokens.asMap()),
ImmutableMap.copyOf(sortedTokens),
null,
unit,
null));
}
static void tokenInfosCreated(TokenAllocatorBase allocator, Queue> sortedUnits,
Map sortedTokens, TokenInfo tokenInfo)
{
if (isEnabled(TokenAllocatorEventType.TOKEN_INFOS_CREATED))
service.publish(new TokenAllocatorEvent<>(TokenAllocatorEventType.TOKEN_INFOS_CREATED,
allocator,
null,
ImmutableList.copyOf(sortedUnits),
null,
ImmutableMap.copyOf(sortedTokens),
null,
null,
tokenInfo));
}
static void tokenInfosCreated(TokenAllocatorBase allocator, Multimap unitToTokens,
TokenInfo tokenInfo)
{
if (isEnabled(TokenAllocatorEventType.TOKEN_INFOS_CREATED))
service.publish(new TokenAllocatorEvent<>(TokenAllocatorEventType.TOKEN_INFOS_CREATED,
allocator,
null,
null,
ImmutableMap.copyOf(unitToTokens.asMap()),
null,
null,
null,
tokenInfo));
}
static void splitsGenerated(TokenAllocatorBase allocator,
int numTokens, Queue> sortedUnits,
NavigableMap sortedTokens,
Unit newUnit,
Collection tokens)
{
if (isEnabled(TokenAllocatorEventType.RANDOM_TOKENS_GENERATED))
service.publish(new TokenAllocatorEvent<>(TokenAllocatorEventType.RANDOM_TOKENS_GENERATED,
allocator,
numTokens,
ImmutableList.copyOf(sortedUnits),
null,
ImmutableMap.copyOf(sortedTokens),
ImmutableList.copyOf(tokens),
newUnit,
null));
}
static void splitsGenerated(TokenAllocatorBase allocator,
int numTokens, Multimap unitToTokens,
NavigableMap sortedTokens, Unit newUnit,
Collection tokens)
{
if (isEnabled(TokenAllocatorEventType.RANDOM_TOKENS_GENERATED))
service.publish(new TokenAllocatorEvent<>(TokenAllocatorEventType.RANDOM_TOKENS_GENERATED,
allocator,
numTokens,
null,
ImmutableMap.copyOf(unitToTokens.asMap()),
ImmutableMap.copyOf(sortedTokens),
ImmutableList.copyOf(tokens),
newUnit,
null));
}
private static boolean isEnabled(TokenAllocatorEventType type)
{
return service.isEnabled(TokenAllocatorEvent.class, type);
}
}