| /* |
| * 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 <Unit> void noReplicationTokenAllocatorInstanciated(NoReplicationTokenAllocator<Unit> 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 <Unit> void replicationTokenAllocatorInstanciated(ReplicationAwareTokenAllocator<Unit> 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 <Unit> void unitedAdded(TokenAllocatorBase<Unit> allocator, int numTokens, |
| Queue<Weighted<UnitInfo>> sortedUnits, NavigableMap<Token, Unit> sortedTokens, |
| List<Token> 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 <Unit> void unitedAdded(TokenAllocatorBase<Unit> allocator, int numTokens, |
| Multimap<Unit, Token> unitToTokens, NavigableMap<Token, Unit> sortedTokens, |
| List<Token> 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 <Unit> void unitRemoved(TokenAllocatorBase<Unit> allocator, Unit unit, |
| Queue<Weighted<UnitInfo>> sortedUnits, Map<Token, Unit> 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 <Unit> void unitRemoved(TokenAllocatorBase<Unit> allocator, Unit unit, |
| Multimap<Unit, Token> unitToTokens, Map<Token, Unit> 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 <Unit> void tokenInfosCreated(TokenAllocatorBase<Unit> allocator, Queue<Weighted<UnitInfo>> sortedUnits, |
| Map<Token, Unit> sortedTokens, TokenInfo<Unit> 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 <Unit> void tokenInfosCreated(TokenAllocatorBase<Unit> allocator, Multimap<Unit, Token> unitToTokens, |
| TokenInfo<Unit> 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 <Unit> void splitsGenerated(TokenAllocatorBase<Unit> allocator, |
| int numTokens, Queue<Weighted<UnitInfo>> sortedUnits, |
| NavigableMap<Token, Unit> sortedTokens, |
| Unit newUnit, |
| Collection<Token> 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 <Unit> void splitsGenerated(TokenAllocatorBase<Unit> allocator, |
| int numTokens, Multimap<Unit, Token> unitToTokens, |
| NavigableMap<Token, Unit> sortedTokens, Unit newUnit, |
| Collection<Token> 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); |
| } |
| |
| } |