| /* |
| * 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.query.continuous; |
| |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Set; |
| import org.apache.ignite.internal.processors.affinity.AffinityTopologyVersion; |
| import org.apache.ignite.internal.processors.continuous.GridContinuousBatch; |
| import org.apache.ignite.internal.processors.continuous.GridContinuousQueryBatch; |
| import org.apache.ignite.internal.util.tostring.GridToStringInclude; |
| import org.apache.ignite.internal.util.typedef.internal.S; |
| import org.apache.ignite.internal.util.typedef.internal.U; |
| import org.apache.ignite.lang.IgniteBiTuple; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** */ |
| class CacheContinuousQueryAcknowledgeBuffer { |
| /** */ |
| private int size; |
| |
| /** */ |
| @GridToStringInclude |
| private Map<Integer, Long> updateCntrs = new HashMap<>(); |
| |
| /** */ |
| @GridToStringInclude |
| private Set<AffinityTopologyVersion> topVers = U.newHashSet(1); |
| |
| /** |
| * @param batch Batch. |
| * @return Non-null tuple if acknowledge should be sent to backups. |
| */ |
| @SuppressWarnings("unchecked") |
| @Nullable synchronized IgniteBiTuple<Map<Integer, Long>, Set<AffinityTopologyVersion>> onAcknowledged( |
| GridContinuousBatch batch) { |
| assert batch instanceof GridContinuousQueryBatch; |
| |
| size += ((GridContinuousQueryBatch)batch).entriesCount(); |
| |
| Collection<CacheContinuousQueryEntry> entries = (Collection)batch.collect(); |
| |
| for (CacheContinuousQueryEntry e : entries) |
| addEntry(e); |
| |
| return size >= CacheContinuousQueryHandler.BACKUP_ACK_THRESHOLD ? acknowledgeData() : null; |
| } |
| |
| /** |
| * @param e Entry. |
| * @return Non-null tuple if acknowledge should be sent to backups. |
| */ |
| @Nullable synchronized IgniteBiTuple<Map<Integer, Long>, Set<AffinityTopologyVersion>> |
| onAcknowledged(CacheContinuousQueryEntry e) { |
| size++; |
| |
| addEntry(e); |
| |
| return size >= CacheContinuousQueryHandler.BACKUP_ACK_THRESHOLD ? acknowledgeData() : null; |
| } |
| |
| /** |
| * @param e Entry. |
| */ |
| private void addEntry(CacheContinuousQueryEntry e) { |
| topVers.add(e.topologyVersion()); |
| |
| Long cntr0 = updateCntrs.get(e.partition()); |
| |
| if (cntr0 == null || e.updateCounter() > cntr0) |
| updateCntrs.put(e.partition(), e.updateCounter()); |
| } |
| |
| /** |
| * @return Non-null tuple if acknowledge should be sent to backups. |
| */ |
| @Nullable synchronized IgniteBiTuple<Map<Integer, Long>, Set<AffinityTopologyVersion>> |
| acknowledgeOnTimeout() { |
| return size > 0 ? acknowledgeData() : null; |
| } |
| |
| /** |
| * @return Tuple with acknowledge information. |
| */ |
| private IgniteBiTuple<Map<Integer, Long>, Set<AffinityTopologyVersion>> acknowledgeData() { |
| assert size > 0; |
| |
| Map<Integer, Long> cntrs = new HashMap<>(updateCntrs); |
| |
| IgniteBiTuple<Map<Integer, Long>, Set<AffinityTopologyVersion>> res = |
| new IgniteBiTuple<>(cntrs, topVers); |
| |
| topVers = U.newHashSet(1); |
| |
| size = 0; |
| |
| return res; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public String toString() { |
| return S.toString(CacheContinuousQueryAcknowledgeBuffer.class, this); |
| } |
| } |