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org.redisson.spring.data.connection.RedissonReactiveZSetCommands Maven / Gradle / Ivy
/**
* Copyright (c) 2013-2022 Nikita Koksharov
*
* Licensed 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.redisson.spring.data.connection;
import org.reactivestreams.Publisher;
import org.redisson.ScanResult;
import org.redisson.api.RFuture;
import org.redisson.client.RedisClient;
import org.redisson.client.codec.ByteArrayCodec;
import org.redisson.client.codec.DoubleCodec;
import org.redisson.client.codec.LongCodec;
import org.redisson.client.codec.StringCodec;
import org.redisson.client.protocol.RedisCommand;
import org.redisson.client.protocol.RedisCommands;
import org.redisson.client.protocol.RedisStrictCommand;
import org.redisson.client.protocol.convertor.DoubleNullSafeReplayConvertor;
import org.redisson.client.protocol.decoder.*;
import org.redisson.reactive.CommandReactiveExecutor;
import org.redisson.reactive.SetReactiveIterator;
import org.springframework.data.domain.Range;
import org.springframework.data.domain.Sort.Direction;
import org.springframework.data.redis.connection.DefaultTuple;
import org.springframework.data.redis.connection.ReactiveRedisConnection.CommandResponse;
import org.springframework.data.redis.connection.ReactiveRedisConnection.KeyCommand;
import org.springframework.data.redis.connection.ReactiveRedisConnection.KeyScanCommand;
import org.springframework.data.redis.connection.ReactiveRedisConnection.NumericResponse;
import org.springframework.data.redis.connection.ReactiveZSetCommands;
import org.springframework.data.redis.connection.RedisZSetCommands.Tuple;
import org.springframework.util.Assert;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import java.math.BigDecimal;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Collectors;
/**
*
* @author Nikita Koksharov
*
*/
public class RedissonReactiveZSetCommands extends RedissonBaseReactive implements ReactiveZSetCommands {
RedissonReactiveZSetCommands(CommandReactiveExecutor executorService) {
super(executorService);
}
private static final RedisCommand ZADD_FLOAT = new RedisCommand<>("ZADD", new DoubleNullSafeReplayConvertor());
@Override
public Flux> zAdd(Publisher commands) {
return execute(commands, command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
Assert.notEmpty(command.getTuples(), "Tuples must not be empty or null!");
byte[] keyBuf = toByteArray(command.getKey());
List params = new ArrayList(command.getTuples().size()*2+1);
params.add(keyBuf);
if (command.isIncr() || command.isUpsert() || command.isReturnTotalChanged()) {
if (command.isUpsert()) {
params.add("NX");
} else {
params.add("XX");
}
if (command.isReturnTotalChanged()) {
params.add("CH");
}
if (command.isIncr()) {
params.add("INCR");
}
}
for (Tuple entry : command.getTuples()) {
params.add(BigDecimal.valueOf(entry.getScore()).toPlainString());
params.add(entry.getValue());
}
Mono m;
if (command.isIncr()) {
m = write(keyBuf, DoubleCodec.INSTANCE, ZADD_FLOAT, params.toArray());
} else {
m = write(keyBuf, StringCodec.INSTANCE, RedisCommands.ZADD, params.toArray());
}
return m.map(v -> new NumericResponse<>(command, v));
});
}
@Override
public Flux> zRem(Publisher commands) {
return execute(commands, command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
Assert.notNull(command.getValues(), "Values must not be null!");
List args = new ArrayList(command.getValues().size() + 1);
args.add(toByteArray(command.getKey()));
args.addAll(command.getValues().stream().map(v -> toByteArray(v)).collect(Collectors.toList()));
Mono m = write((byte[])args.get(0), StringCodec.INSTANCE, RedisCommands.ZREM_LONG, args.toArray());
return m.map(v -> new NumericResponse<>(command, v));
});
}
@Override
public Flux> zIncrBy(Publisher commands) {
return execute(commands, command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
Assert.notNull(command.getValue(), "Member must not be null!");
Assert.notNull(command.getIncrement(), "Increment value must not be null!");
byte[] keyBuf = toByteArray(command.getKey());
byte[] valueBuf = toByteArray(command.getValue());
Mono m = write(keyBuf, DoubleCodec.INSTANCE, RedisCommands.ZINCRBY, keyBuf, new BigDecimal(command.getIncrement().doubleValue()).toPlainString(), valueBuf);
return m.map(v -> new NumericResponse<>(command, v));
});
}
@Override
public Flux> zRank(Publisher commands) {
return execute(commands, command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
Assert.notNull(command.getValue(), "Member must not be null!");
byte[] keyBuf = toByteArray(command.getKey());
byte[] valueBuf = toByteArray(command.getValue());
RedisCommand cmd = RedisCommands.ZRANK;
if (command.getDirection() == Direction.DESC) {
cmd = RedisCommands.ZREVRANK;
}
Mono m = read(keyBuf, DoubleCodec.INSTANCE, cmd, keyBuf, valueBuf);
return m.map(v -> new NumericResponse<>(command, v));
});
}
private static final RedisCommand> ZRANGE_ENTRY = new RedisCommand<>("ZRANGE", new ScoredSortedSetReplayDecoder());
private static final RedisCommand> ZRANGE_ENTRY_V2 = new RedisCommand>("ZRANGE",
new ListMultiDecoder2(new ObjectSetReplayDecoder(), new ScoredSortedSetReplayDecoderV2()));
private static final RedisCommand> ZRANGE = new RedisCommand<>("ZRANGE", new ObjectSetReplayDecoder());
private static final RedisCommand> ZREVRANGE_ENTRY = new RedisCommand<>("ZREVRANGE", new ScoredSortedSetReplayDecoder());
private static final RedisCommand> ZREVRANGE_ENTRY_V2 = new RedisCommand("ZREVRANGE",
new ListMultiDecoder2(new ObjectSetReplayDecoder(), new ScoredSortedSetReplayDecoderV2()));
private static final RedisCommand> ZREVRANGE = new RedisCommand<>("ZREVRANGE", new ObjectSetReplayDecoder());
@Override
public Flux>> zRange(Publisher commands) {
return execute(commands, command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
Assert.notNull(command.getRange(), "Range must not be null!");
byte[] keyBuf = toByteArray(command.getKey());
long start = command.getRange().getLowerBound().getValue().orElse(0L);
long end = command.getRange().getUpperBound().getValue().get();
Flux flux;
if (command.getDirection() == Direction.ASC) {
if (command.isWithScores()) {
RedisCommand> cmd = ZRANGE_ENTRY;
if (executorService.getServiceManager().isResp3()) {
cmd = ZRANGE_ENTRY_V2;
}
Mono> m = read(keyBuf, ByteArrayCodec.INSTANCE, cmd,
keyBuf, start, end, "WITHSCORES");
flux = m.flatMapMany(e -> Flux.fromIterable(e));
} else {
Mono> m = read(keyBuf, ByteArrayCodec.INSTANCE, ZRANGE, keyBuf, start, end);
flux = m.flatMapMany(e -> Flux.fromIterable(e).map(b -> new DefaultTuple(b, Double.NaN)));
}
} else {
if (command.isWithScores()) {
RedisCommand> cmd = ZREVRANGE_ENTRY;
if (executorService.getServiceManager().isResp3()) {
cmd = ZREVRANGE_ENTRY_V2;
}
Mono> m = read(keyBuf, ByteArrayCodec.INSTANCE, cmd,
keyBuf, start, end, "WITHSCORES");
flux = m.flatMapMany(e -> Flux.fromIterable(e));
} else {
Mono> m = read(keyBuf, ByteArrayCodec.INSTANCE, ZREVRANGE, keyBuf, start, end);
flux = m.flatMapMany(e -> Flux.fromIterable(e).map(b -> new DefaultTuple(b, Double.NaN)));
}
}
return Mono.just(new CommandResponse<>(command, flux));
});
}
private static final RedisCommand> ZRANGEBYSCORE = new RedisCommand>("ZRANGEBYSCORE", new ScoredSortedSetReplayDecoder());
private static final RedisCommand> ZRANGEBYSCORE_V2 = new RedisCommand>("ZRANGEBYSCORE",
new ListMultiDecoder2(new ObjectSetReplayDecoder(), new ScoredSortedSetReplayDecoderV2()));
private static final RedisCommand> ZREVRANGEBYSCORE = new RedisCommand>("ZREVRANGEBYSCORE", new ScoredSortedSetReplayDecoder());
private static final RedisCommand> ZREVRANGEBYSCORE_V2 = new RedisCommand>("ZREVRANGEBYSCORE",
new ListMultiDecoder2(new ObjectSetReplayDecoder(), new ScoredSortedSetReplayDecoderV2()));
@Override
public Flux>> zRangeByScore(
Publisher commands) {
return execute(commands, command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
Assert.notNull(command.getRange(), "Range must not be null!");
byte[] keyBuf = toByteArray(command.getKey());
String start = toLowerBound(command.getRange());
String end = toUpperBound(command.getRange());
List args = new ArrayList();
args.add(keyBuf);
if (command.getDirection() == Direction.ASC) {
args.add(start);
} else {
args.add(end);
}
if (command.getDirection() == Direction.ASC) {
args.add(end);
} else {
args.add(start);
}
if (command.isWithScores()) {
args.add("WITHSCORES");
}
if (command.getLimit().isPresent() && !command.getLimit().get().isUnlimited()) {
args.add("LIMIT");
args.add(command.getLimit().get().getOffset());
args.add(command.getLimit().get().getCount());
}
Flux flux;
if (command.getDirection() == Direction.ASC) {
if (command.isWithScores()) {
RedisCommand> cmd = ZRANGEBYSCORE;
if (executorService.getServiceManager().isResp3()) {
cmd = ZRANGEBYSCORE_V2;
}
Mono> m = read(keyBuf, ByteArrayCodec.INSTANCE, cmd, args.toArray());
flux = m.flatMapMany(e -> Flux.fromIterable(e));
} else {
Mono> m = read(keyBuf, ByteArrayCodec.INSTANCE, RedisCommands.ZRANGEBYSCORE, args.toArray());
flux = m.flatMapMany(e -> Flux.fromIterable(e).map(b -> new DefaultTuple(b, Double.NaN)));
}
} else {
if (command.isWithScores()) {
RedisCommand> cmd = ZREVRANGEBYSCORE;
if (executorService.getServiceManager().isResp3()) {
cmd = ZREVRANGEBYSCORE_V2;
}
Mono> m = read(keyBuf, ByteArrayCodec.INSTANCE, cmd, args.toArray());
flux = m.flatMapMany(e -> Flux.fromIterable(e));
} else {
Mono> m = read(keyBuf, ByteArrayCodec.INSTANCE, RedisCommands.ZREVRANGEBYSCORE, args.toArray());
flux = m.flatMapMany(e -> Flux.fromIterable(e).map(b -> new DefaultTuple(b, Double.NaN)));
}
}
return Mono.just(new CommandResponse<>(command, flux));
});
}
private static final RedisCommand> ZSCAN = new RedisCommand<>("ZSCAN", new ListMultiDecoder2(new ScoredSortedSetScanDecoder(), new ScoredSortedSetScanReplayDecoder()));
@Override
public Flux>> zScan(Publisher commands) {
return execute(commands, command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
Assert.notNull(command.getOptions(), "ScanOptions must not be null!");
byte[] keyBuf = toByteArray(command.getKey());
Flux flux = Flux.create(new SetReactiveIterator() {
@Override
protected RFuture> scanIterator(RedisClient client, long nextIterPos) {
if (command.getOptions().getPattern() == null) {
return executorService.readAsync(client, keyBuf, ByteArrayCodec.INSTANCE, ZSCAN,
keyBuf, nextIterPos, "COUNT", Optional.ofNullable(command.getOptions().getCount()).orElse(10L));
}
return executorService.readAsync(client, keyBuf, ByteArrayCodec.INSTANCE, ZSCAN,
keyBuf, nextIterPos, "MATCH", command.getOptions().getPattern(),
"COUNT", Optional.ofNullable(command.getOptions().getCount()).orElse(10L));
}
});
return Mono.just(new CommandResponse<>(command, flux));
});
}
private static final RedisStrictCommand ZCOUNT = new RedisStrictCommand("ZCOUNT");
String toLowerBound(Range range) {
StringBuilder s = new StringBuilder();
if (!range.getLowerBound().isInclusive()) {
s.append("(");
}
if (!range.getLowerBound().getValue().isPresent() || range.getLowerBound().getValue().get().toString().isEmpty()) {
s.append("-inf");
} else {
s.append(range.getLowerBound().getValue().get());
}
return s.toString();
}
String toUpperBound(Range range) {
StringBuilder s = new StringBuilder();
if (!range.getUpperBound().isInclusive()) {
s.append("(");
}
if (!range.getUpperBound().getValue().isPresent() || range.getUpperBound().getValue().get().toString().isEmpty()) {
s.append("+inf");
} else {
s.append(range.getUpperBound().getValue().get());
}
return s.toString();
}
String toLexLowerBound(Range range, Object defaultValue) {
StringBuilder s = new StringBuilder();
if (range.getLowerBound().isInclusive()) {
s.append("[");
} else {
s.append("(");
}
if (!range.getLowerBound().getValue().isPresent() || range.getLowerBound().getValue().get().toString().isEmpty()) {
s.append(defaultValue);
} else {
s.append(range.getLowerBound().getValue().get());
}
return s.toString();
}
String toLexUpperBound(Range range, Object defaultValue) {
StringBuilder s = new StringBuilder();
if (range.getUpperBound().isInclusive()) {
s.append("[");
} else {
s.append("(");
}
if (!range.getUpperBound().getValue().isPresent() || range.getUpperBound().getValue().get().toString().isEmpty()) {
s.append(defaultValue);
} else {
s.append(range.getUpperBound().getValue().get());
}
return s.toString();
}
@Override
public Flux> zCount(Publisher commands) {
return execute(commands, command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
Assert.notNull(command.getRange(), "Range must not be null!");
byte[] keyBuf = toByteArray(command.getKey());
Mono m = read(keyBuf, StringCodec.INSTANCE, ZCOUNT,
keyBuf, toLowerBound(command.getRange()),
toUpperBound(command.getRange()));
return m.map(v -> new NumericResponse<>(command, v));
});
}
@Override
public Flux> zCard(Publisher commands) {
return execute(commands, command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
byte[] keyBuf = toByteArray(command.getKey());
Mono m = read(keyBuf, StringCodec.INSTANCE, RedisCommands.ZCARD, keyBuf);
return m.map(v -> new NumericResponse<>(command, v));
});
}
@Override
public Flux> zScore(Publisher commands) {
return execute(commands, command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
Assert.notNull(command.getValue(), "Value must not be null!");
byte[] keyBuf = toByteArray(command.getKey());
byte[] valueBuf = toByteArray(command.getValue());
Mono m = read(keyBuf, StringCodec.INSTANCE, RedisCommands.ZSCORE, keyBuf, valueBuf);
return m.map(v -> new NumericResponse<>(command, v));
});
}
private static final RedisStrictCommand ZREMRANGEBYRANK = new RedisStrictCommand("ZREMRANGEBYRANK");
@Override
public Flux> zRemRangeByRank(
Publisher commands) {
return execute(commands, command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
Assert.notNull(command.getRange(), "Range must not be null!");
byte[] keyBuf = toByteArray(command.getKey());
Mono m = write(keyBuf, StringCodec.INSTANCE, ZREMRANGEBYRANK,
keyBuf, command.getRange().getLowerBound().getValue().orElse(0L),
command.getRange().getUpperBound().getValue().get());
return m.map(v -> new NumericResponse<>(command, v));
});
}
private static final RedisStrictCommand ZREMRANGEBYSCORE = new RedisStrictCommand("ZREMRANGEBYSCORE");
@Override
public Flux> zRemRangeByScore(
Publisher commands) {
return execute(commands, command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
Assert.notNull(command.getRange(), "Range must not be null!");
byte[] keyBuf = toByteArray(command.getKey());
Mono m = write(keyBuf, StringCodec.INSTANCE, ZREMRANGEBYSCORE,
keyBuf, toLowerBound(command.getRange()),
toUpperBound(command.getRange()));
return m.map(v -> new NumericResponse<>(command, v));
});
}
private static final RedisStrictCommand ZUNIONSTORE = new RedisStrictCommand("ZUNIONSTORE");
@Override
public Flux> zUnionStore(Publisher commands) {
return execute(commands, command -> {
Assert.notNull(command.getKey(), "Destination key must not be null!");
Assert.notEmpty(command.getSourceKeys(), "Source keys must not be null or empty!");
byte[] keyBuf = toByteArray(command.getKey());
List args = new ArrayList(command.getSourceKeys().size() * 2 + 5);
args.add(keyBuf);
args.add(command.getSourceKeys().size());
args.addAll(command.getSourceKeys().stream().map(e -> toByteArray(e)).collect(Collectors.toList()));
if (!command.getWeights().isEmpty()) {
args.add("WEIGHTS");
for (Double weight : command.getWeights()) {
args.add(BigDecimal.valueOf(weight).toPlainString());
}
}
if (command.getAggregateFunction().isPresent()) {
args.add("AGGREGATE");
args.add(command.getAggregateFunction().get().name());
}
Mono m = write(keyBuf, LongCodec.INSTANCE, ZUNIONSTORE, args.toArray());
return m.map(v -> new NumericResponse<>(command, v));
});
}
private static final RedisStrictCommand ZINTERSTORE = new RedisStrictCommand("ZINTERSTORE");
@Override
public Flux> zInterStore(Publisher commands) {
return execute(commands, command -> {
Assert.notNull(command.getKey(), "Destination key must not be null!");
Assert.notEmpty(command.getSourceKeys(), "Source keys must not be null or empty!");
byte[] keyBuf = toByteArray(command.getKey());
List args = new ArrayList(command.getSourceKeys().size() * 2 + 5);
args.add(keyBuf);
args.add(command.getSourceKeys().size());
args.addAll(command.getSourceKeys().stream().map(e -> toByteArray(e)).collect(Collectors.toList()));
if (!command.getWeights().isEmpty()) {
args.add("WEIGHTS");
for (Double weight : command.getWeights()) {
args.add(BigDecimal.valueOf(weight).toPlainString());
}
}
if (command.getAggregateFunction().isPresent()) {
args.add("AGGREGATE");
args.add(command.getAggregateFunction().get().name());
}
Mono m = write(keyBuf, LongCodec.INSTANCE, ZINTERSTORE, args.toArray());
return m.map(v -> new NumericResponse<>(command, v));
});
}
private static final RedisCommand> ZRANGEBYLEX = new RedisCommand>("ZRANGEBYLEX", new ObjectSetReplayDecoder());
private static final RedisCommand> ZREVRANGEBYLEX = new RedisCommand>("ZREVRANGEBYLEX", new ObjectSetReplayDecoder());
@Override
public Flux>> zRangeByLex(
Publisher commands) {
return execute(commands, command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
Assert.notNull(command.getRange(), "Range must not be null!");
byte[] keyBuf = toByteArray(command.getKey());
String start = null;
String end = null;
if (command.getDirection() == Direction.ASC) {
start = toLexLowerBound(command.getRange(), "-");
end = toLexUpperBound(command.getRange(), "+");
} else {
start = toLexUpperBound(command.getRange(), "-");
end = toLexLowerBound(command.getRange(), "+");
}
Mono> m;
if (!command.getLimit().isUnlimited()) {
if (command.getDirection() == Direction.ASC) {
m = read(keyBuf, ByteArrayCodec.INSTANCE, ZRANGEBYLEX,
keyBuf, start, end, "LIMIT", command.getLimit().getOffset(), command.getLimit().getCount());
} else {
m = read(keyBuf, ByteArrayCodec.INSTANCE, ZREVRANGEBYLEX,
keyBuf, start, end, "LIMIT", command.getLimit().getOffset(), command.getLimit().getCount());
}
} else {
if (command.getDirection() == Direction.ASC) {
m = read(keyBuf, ByteArrayCodec.INSTANCE, ZRANGEBYLEX,
keyBuf, start, end);
} else {
m = read(keyBuf, ByteArrayCodec.INSTANCE, ZREVRANGEBYLEX,
keyBuf, start, end);
}
}
Flux flux = m.flatMapMany(e -> Flux.fromIterable(e).map(v -> ByteBuffer.wrap(v)));
return Mono.just(new CommandResponse<>(command, flux));
});
}
}
