| /* |
| * 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.cluster; |
| |
| import java.util.Collection; |
| import java.util.Map; |
| import java.util.UUID; |
| import org.apache.ignite.IgniteCheckedException; |
| import org.apache.ignite.cluster.BaselineNode; |
| import org.apache.ignite.cluster.ClusterNode; |
| import org.apache.ignite.internal.IgniteInternalFuture; |
| import org.apache.ignite.internal.managers.discovery.DiscoCache; |
| import org.apache.ignite.internal.processors.GridProcessor; |
| import org.apache.ignite.internal.processors.affinity.AffinityTopologyVersion; |
| import org.apache.ignite.internal.processors.cache.StateChangeRequest; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * |
| */ |
| public interface IGridClusterStateProcessor extends GridProcessor { |
| /** |
| * @return Cluster state to be used on public API. |
| */ |
| boolean publicApiActiveState(boolean waitForTransition); |
| |
| /** |
| * @param discoCache Discovery data cache. |
| * @return If transition is in progress returns future which is completed when transition finishes. |
| */ |
| @Nullable IgniteInternalFuture<Boolean> onLocalJoin(DiscoCache discoCache); |
| |
| /** |
| * @param node Failed node. |
| * @return Message if cluster state changed. |
| */ |
| @Nullable ChangeGlobalStateFinishMessage onNodeLeft(ClusterNode node); |
| |
| /** |
| * @param msg Message. |
| */ |
| void onStateFinishMessage(ChangeGlobalStateFinishMessage msg); |
| |
| /** |
| * @param topVer Current topology version. |
| * @param msg Message. |
| * @param discoCache Current nodes. |
| * @return {@code True} if need start state change process. |
| */ |
| boolean onStateChangeMessage(AffinityTopologyVersion topVer, |
| ChangeGlobalStateMessage msg, |
| DiscoCache discoCache); |
| |
| /** |
| * @return Current cluster state, should be called only from discovery thread. |
| */ |
| DiscoveryDataClusterState clusterState(); |
| |
| /** |
| * @return Pending cluster state which will be used when state transition is finished. |
| */ |
| DiscoveryDataClusterState pendingState(ChangeGlobalStateMessage stateMsg); |
| |
| /** |
| * |
| */ |
| void cacheProcessorStarted(); |
| |
| /** |
| * @param activate New cluster state. |
| * @return State change future. |
| */ |
| IgniteInternalFuture<?> changeGlobalState( |
| boolean activate, |
| Collection<? extends BaselineNode> baselineNodes, |
| boolean forceChangeBaselineTopology |
| ); |
| |
| /** |
| * @param errs Errors. |
| * @param req State change request. |
| */ |
| void onStateChangeError(Map<UUID, Exception> errs, StateChangeRequest req); |
| |
| /** |
| * @param req State change request. |
| */ |
| void onStateChangeExchangeDone(StateChangeRequest req); |
| |
| /** |
| * @param blt New baseline topology. |
| * @param prevBltHistItem Previous baseline history item. |
| */ |
| void onBaselineTopologyChanged(BaselineTopology blt, BaselineTopologyHistoryItem prevBltHistItem) throws IgniteCheckedException; |
| |
| /** |
| * @param exchangeFuture Exchange future. |
| * @param hasMovingPartitions {@code True} if there are moving partitions. |
| */ |
| void onExchangeFinishedOnCoordinator(IgniteInternalFuture exchangeFuture, boolean hasMovingPartitions); |
| |
| /** |
| * @return {@code True} if partition evictions are allowed in current state. |
| */ |
| boolean evictionsAllowed(); |
| } |