ringles commented on a change in pull request #6489: URL: https://github.com/apache/geode/pull/6489#discussion_r636236362
########## File path: geode-apis-compatible-with-redis/src/main/java/org/apache/geode/redis/internal/data/RedisSortedSet.java ########## @@ -0,0 +1,286 @@ +/* + * 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.geode.redis.internal.data; + +import static org.apache.geode.redis.internal.data.RedisDataType.REDIS_SORTED_SET; + +import java.io.DataInput; +import java.io.DataOutput; +import java.io.IOException; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Iterator; +import java.util.List; +import java.util.Map; +import java.util.Objects; + +import it.unimi.dsi.fastutil.bytes.ByteArrays; +import it.unimi.dsi.fastutil.objects.Object2ObjectOpenCustomHashMap; + +import org.apache.geode.cache.Region; +import org.apache.geode.internal.InternalDataSerializer; +import org.apache.geode.internal.serialization.DeserializationContext; +import org.apache.geode.internal.serialization.KnownVersion; +import org.apache.geode.internal.serialization.SerializationContext; +import org.apache.geode.redis.internal.delta.AddsDeltaInfo; +import org.apache.geode.redis.internal.delta.DeltaInfo; +import org.apache.geode.redis.internal.delta.RemsDeltaInfo; +import org.apache.geode.redis.internal.executor.sortedset.SortedSetOptions; + +public class RedisSortedSet extends AbstractRedisData { + private Object2ObjectOpenCustomHashMap<byte[], byte[]> members; + + protected static final int BASE_REDIS_SORTED_SET_OVERHEAD = 184; + protected static final int PER_PAIR_OVERHEAD = 48; + + private int sizeInBytes; + + @Override + public int getSizeInBytes() { + return sizeInBytes; + } + + private enum AddOrChange { + ADDED, CHANGED, NOOP + } + + private int calculateSizeOfNewFieldValuePair(byte[] member, byte[] score) { + return PER_PAIR_OVERHEAD + member.length + score.length; + } + + RedisSortedSet(List<byte[]> members) { + sizeInBytes += BASE_REDIS_SORTED_SET_OVERHEAD; + this.members = new Object2ObjectOpenCustomHashMap<>(members.size(), ByteArrays.HASH_STRATEGY); + Iterator<byte[]> iterator = members.iterator(); + + while (iterator.hasNext()) { + byte[] score = iterator.next(); + byte[] member = iterator.next(); + sizeInBytes += calculateSizeOfNewFieldValuePair(member, score); + this.members.put(member, score); + } + } + + RedisSortedSet(List<byte[]> members, SortedSetOptions options) { + if (options.isXX()) { + sizeInBytes += BASE_REDIS_SORTED_SET_OVERHEAD; + this.members = new Object2ObjectOpenCustomHashMap<>(members.size(), ByteArrays.HASH_STRATEGY); + } else { + RedisSortedSet tempSet = new RedisSortedSet(members); + this.members = tempSet.members; + this.sizeInBytes = tempSet.sizeInBytes; + } + } + + // for serialization + public RedisSortedSet() {} + + @Override + protected void applyDelta(DeltaInfo deltaInfo) { + if (deltaInfo instanceof AddsDeltaInfo) { + AddsDeltaInfo addsDeltaInfo = (AddsDeltaInfo) deltaInfo; + membersAddAll(addsDeltaInfo); + } else { + RemsDeltaInfo remsDeltaInfo = (RemsDeltaInfo) deltaInfo; + membersRemoveAll(remsDeltaInfo); + } + } + + /** + * Since GII (getInitialImage) can come in and call toData while other threads are modifying this + * object, the striped executor will not protect toData. So any methods that modify "members" + * needs to be thread safe with toData. + */ + + @Override + public synchronized void toData(DataOutput out, SerializationContext context) throws IOException { + super.toData(out, context); + InternalDataSerializer.writePrimitiveInt(members.size(), out); + for (Map.Entry<byte[], byte[]> entry : members.entrySet()) { + byte[] key = entry.getKey(); + byte[] value = entry.getValue(); + InternalDataSerializer.writeByteArray(key, out); + InternalDataSerializer.writeByteArray(value, out); + } + InternalDataSerializer.writePrimitiveInt(sizeInBytes, out); + } + + @Override + public void fromData(DataInput in, DeserializationContext context) + throws IOException, ClassNotFoundException { + super.fromData(in, context); + int size = InternalDataSerializer.readPrimitiveInt(in); + members = new Object2ObjectOpenCustomHashMap<>(size, ByteArrays.HASH_STRATEGY); + for (int i = 0; i < size; i++) { + members.put(InternalDataSerializer.readByteArray(in), + InternalDataSerializer.readByteArray(in)); + } + sizeInBytes = InternalDataSerializer.readPrimitiveInt(in); + } + + @Override + public boolean equals(Object o) { + if (this == o) { + return true; + } + if (!(o instanceof RedisSortedSet)) { + return false; + } + if (!super.equals(o)) { + return false; + } + RedisSortedSet redisSortedSet = (RedisSortedSet) o; + if (members.size() != redisSortedSet.members.size()) { + return false; + } + + for (Map.Entry<byte[], byte[]> entry : members.entrySet()) { + if (!Arrays.equals(redisSortedSet.members.get(entry.getKey()), (entry.getValue()))) { + return false; + } + } + return true; + } + + @Override + public int getDSFID() { + return REDIS_SORTED_SET_ID; + } + + protected synchronized AddOrChange memberAdd(byte[] memberToAdd, byte[] scoreToAdd) { + boolean added = (members.put(memberToAdd, scoreToAdd) == null); + if (added) { + sizeInBytes += calculateSizeOfNewFieldValuePair(memberToAdd, scoreToAdd); + } + return added ? AddOrChange.ADDED : AddOrChange.NOOP; + } + + private synchronized void membersAddAll(AddsDeltaInfo addsDeltaInfo) { + Iterator<byte[]> iterator = addsDeltaInfo.getAdds().iterator(); + while (iterator.hasNext()) { + byte[] member = iterator.next(); + sizeInBytes += PER_PAIR_OVERHEAD + member.length; + byte[] score = iterator.next(); + sizeInBytes += PER_PAIR_OVERHEAD + score.length; + members.put(member, score); + } + } + + + private synchronized void membersRemoveAll(RemsDeltaInfo remsDeltaInfo) { + for (byte[] member : remsDeltaInfo.getRemoves()) { + sizeInBytes -= (PER_PAIR_OVERHEAD + member.length); + members.remove(member); + } + } + + /** + * @param region the region this instance is stored in + * @param key the name of the set to add to + * @param membersToAdd members to add to this set; NOTE this list may by modified by this call + * @return the number of members actually added + */ + long zadd(Region<RedisKey, RedisData> region, RedisKey key, List<byte[]> membersToAdd, + SortedSetOptions options) { + int membersAdded = 0; + if (options == null) { + options = new SortedSetOptions(SortedSetOptions.Exists.NONE, SortedSetOptions.Update.NONE); + } + AddsDeltaInfo deltaInfo = null; + Iterator<byte[]> iterator = membersToAdd.iterator(); + while (iterator.hasNext()) { + boolean delta = true; + byte[] score = iterator.next(); + byte[] member = iterator.next(); + + if (options.isNX()) { + if (members.get(member) != null) { + continue; + } + } + if (options.isXX()) { + if (members.get(member) == null) { + continue; + } + } Review comment: Cleaner, reworked. -- This is an automated message from the Apache Git Service. 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