| /* |
| * 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.ignite.internal.processors.cache; |
| |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.UUID; |
| import org.apache.ignite.cluster.ClusterNode; |
| import org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsExchangeFuture; |
| import org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionsFullMessage; |
| import org.apache.ignite.internal.util.GridLongList; |
| import org.apache.ignite.internal.util.typedef.internal.S; |
| import org.jetbrains.annotations.Nullable; |
| |
| import static org.apache.ignite.IgniteSystemProperties.getBoolean; |
| import static org.apache.ignite.internal.events.DiscoveryCustomEvent.EVT_DISCOVERY_CUSTOM_EVT; |
| import static org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager.exchangeProtocolVersion; |
| |
| /** |
| * |
| */ |
| public class ExchangeContext { |
| /** */ |
| public static final String IGNITE_EXCHANGE_COMPATIBILITY_VER_1 = "IGNITE_EXCHANGE_COMPATIBILITY_VER_1"; |
| |
| /** Cache groups to request affinity for during local join exchange. */ |
| private Set<Integer> requestGrpsAffOnJoin; |
| |
| /** Per-group affinity fetch on join (old protocol). */ |
| private boolean fetchAffOnJoin; |
| |
| /** Merges allowed flag. */ |
| private final boolean merge; |
| |
| /** */ |
| private final ExchangeDiscoveryEvents evts; |
| |
| /** */ |
| private final boolean compatibilityNode = getBoolean(IGNITE_EXCHANGE_COMPATIBILITY_VER_1, false); |
| |
| /** */ |
| private final boolean newMvccCrd; |
| |
| /** Currently running mvcc queries, initialized when mvcc coordinator is changed. */ |
| private Map<UUID, GridLongList> activeQueries; |
| |
| /** |
| * @param crd Coordinator flag. |
| * @param newMvccCrd {@code True} if new coordinator assigned during this exchange. |
| * @param fut Exchange future. |
| */ |
| public ExchangeContext(boolean crd, boolean newMvccCrd, GridDhtPartitionsExchangeFuture fut) { |
| this.newMvccCrd = newMvccCrd; |
| |
| int protocolVer = exchangeProtocolVersion(fut.firstEventCache().minimumNodeVersion()); |
| |
| if (compatibilityNode || (crd && fut.localJoinExchange())) { |
| fetchAffOnJoin = true; |
| |
| merge = false; |
| } |
| else { |
| boolean startCaches = fut.exchangeId().isJoined() && |
| fut.sharedContext().cache().hasCachesReceivedFromJoin(fut.exchangeId().eventNode()); |
| |
| fetchAffOnJoin = protocolVer == 1; |
| |
| merge = !startCaches && |
| protocolVer > 1 && |
| fut.firstEvent().type() != EVT_DISCOVERY_CUSTOM_EVT; |
| } |
| |
| evts = new ExchangeDiscoveryEvents(fut); |
| } |
| |
| /** |
| * @param node Node. |
| * @return {@code True} if node supports exchange merge protocol. |
| */ |
| boolean supportsMergeExchanges(ClusterNode node) { |
| return !compatibilityNode && exchangeProtocolVersion(node.version()) > 1; |
| } |
| |
| /** |
| * @return Discovery events. |
| */ |
| public ExchangeDiscoveryEvents events() { |
| return evts; |
| } |
| |
| /** |
| * @return {@code True} if on local join need fetch affinity per-group (old protocol), |
| * otherwise affinity is sent in {@link GridDhtPartitionsFullMessage}. |
| */ |
| public boolean fetchAffinityOnJoin() { |
| return fetchAffOnJoin; |
| } |
| |
| /** |
| * @param grpId Cache group ID. |
| */ |
| void addGroupAffinityRequestOnJoin(Integer grpId) { |
| if (requestGrpsAffOnJoin == null) |
| requestGrpsAffOnJoin = new HashSet<>(); |
| |
| requestGrpsAffOnJoin.add(grpId); |
| } |
| |
| /** |
| * @return Groups to request affinity for. |
| */ |
| @Nullable public Set<Integer> groupsAffinityRequestOnJoin() { |
| return requestGrpsAffOnJoin; |
| } |
| |
| /** |
| * @return {@code True} if exchanges merge is allowed during current exchange. |
| */ |
| public boolean mergeExchanges() { |
| return merge; |
| } |
| |
| /** |
| * @return {@code True} if new node assigned as mvcc coordinator node during this exchange. |
| */ |
| public boolean newMvccCoordinator() { |
| return newMvccCrd; |
| } |
| |
| /** |
| * @return Active queries. |
| */ |
| public Map<UUID, GridLongList> activeQueries() { |
| return activeQueries; |
| } |
| |
| /** |
| * @param nodeId Node ID. |
| * @param nodeQueries Node queries. |
| */ |
| public void addActiveQueries(UUID nodeId, @Nullable GridLongList nodeQueries) { |
| if (nodeQueries == null) |
| return; |
| |
| if (activeQueries == null) |
| activeQueries = new HashMap<>(); |
| |
| activeQueries.put(nodeId, nodeQueries); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public String toString() { |
| return S.toString(ExchangeContext.class, this); |
| } |
| } |