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/*
* Copyright 2017-2018 the original author or authors.
*
* 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.springframework.data.redis.core;
import lombok.NonNull;
import lombok.RequiredArgsConstructor;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.function.Function;
import org.reactivestreams.Publisher;
import org.springframework.data.domain.Range;
import org.springframework.data.redis.connection.DefaultTuple;
import org.springframework.data.redis.connection.ReactiveZSetCommands;
import org.springframework.data.redis.connection.RedisZSetCommands.Aggregate;
import org.springframework.data.redis.connection.RedisZSetCommands.Limit;
import org.springframework.data.redis.connection.RedisZSetCommands.Tuple;
import org.springframework.data.redis.connection.RedisZSetCommands.Weights;
import org.springframework.data.redis.core.ZSetOperations.TypedTuple;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.util.ByteUtils;
import org.springframework.util.Assert;
/**
* Default implementation of {@link ReactiveZSetOperations}.
*
* @author Mark Paluch
* @author Christoph Strobl
* @since 2.0
*/
@RequiredArgsConstructor
class DefaultReactiveZSetOperations implements ReactiveZSetOperations {
private final @NonNull ReactiveRedisTemplate template;
private final @NonNull RedisSerializationContext serializationContext;
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#add(java.lang.Object, java.lang.Object, double)
*/
@Override
public Mono add(K key, V value, double score) {
Assert.notNull(key, "Key must not be null!");
return createMono(connection -> connection.zAdd(rawKey(key), score, rawValue(value)).map(l -> l != 0));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#add(java.lang.Object, java.util.Collection)
*/
@Override
public Mono addAll(K key, Collection> tuples) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(tuples, "Key must not be null!");
return createMono(connection -> Flux.fromIterable(tuples) //
.map(t -> new DefaultTuple(ByteUtils.getBytes(rawValue(t.getValue())), t.getScore())) //
.collectList() //
.flatMap(serialized -> connection.zAdd(rawKey(key), serialized)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#remove(java.lang.Object, java.lang.Object[])
*/
@Override
@SuppressWarnings("unchecked")
public Mono remove(K key, Object... values) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(values, "Values must not be null!");
if (values.length == 1) {
return createMono(connection -> connection.zRem(rawKey(key), rawValue((V) values[0])));
}
return createMono(connection -> Flux.fromArray((V[]) values) //
.map(this::rawValue) //
.collectList() //
.flatMap(serialized -> connection.zRem(rawKey(key), serialized)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#incrementScore(java.lang.Object, java.lang.Object, double)
*/
@Override
public Mono incrementScore(K key, V value, double delta) {
Assert.notNull(key, "Key must not be null!");
return createMono(connection -> connection.zIncrBy(rawKey(key), delta, rawValue(value)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#rank(java.lang.Object, java.lang.Object)
*/
@Override
@SuppressWarnings("unchecked")
public Mono rank(K key, Object o) {
Assert.notNull(key, "Key must not be null!");
return createMono(connection -> connection.zRank(rawKey(key), rawValue((V) o)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#reverseRank(java.lang.Object, java.lang.Object)
*/
@Override
@SuppressWarnings("unchecked")
public Mono reverseRank(K key, Object o) {
Assert.notNull(key, "Key must not be null!");
return createMono(connection -> connection.zRevRank(rawKey(key), rawValue((V) o)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#range(java.lang.Object, org.springframework.data.domain.Range)
*/
@Override
public Flux range(K key, Range range) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
return createFlux(connection -> connection.zRange(rawKey(key), range).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#rangeWithScores(java.lang.Object, org.springframework.data.domain.Range)
*/
@Override
public Flux> rangeWithScores(K key, Range range) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
return createFlux(connection -> connection.zRangeWithScores(rawKey(key), range).map(this::readTypedTuple));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#rangeByScore(java.lang.Object, org.springframework.data.domain.Range)
*/
@Override
public Flux rangeByScore(K key, Range range) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
return createFlux(connection -> connection.zRangeByScore(rawKey(key), range).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#rangeByScoreWithScores(java.lang.Object, org.springframework.data.domain.Range)
*/
@Override
public Flux> rangeByScoreWithScores(K key, Range range) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
return createFlux(connection -> connection.zRangeByScoreWithScores(rawKey(key), range).map(this::readTypedTuple));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#rangeByScore(java.lang.Object, org.springframework.data.domain.Range, org.springframework.data.redis.connection.RedisZSetCommands.Limit)
*/
@Override
public Flux rangeByScore(K key, Range range, Limit limit) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
return createFlux(connection -> connection.zRangeByScore(rawKey(key), range, limit).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#rangeByScoreWithScores(java.lang.Object, org.springframework.data.domain.Range, org.springframework.data.redis.connection.RedisZSetCommands.Limit)
*/
@Override
public Flux> rangeByScoreWithScores(K key, Range range, Limit limit) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
Assert.notNull(limit, "Limit must not be null!");
return createFlux(
connection -> connection.zRangeByScoreWithScores(rawKey(key), range, limit).map(this::readTypedTuple));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#reverseRange(java.lang.Object, org.springframework.data.domain.Range)
*/
@Override
public Flux reverseRange(K key, Range range) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
return createFlux(connection -> connection.zRevRange(rawKey(key), range).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#reverseRangeWithScores(java.lang.Object, org.springframework.data.domain.Range)
*/
@Override
public Flux> reverseRangeWithScores(K key, Range range) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
return createFlux(connection -> connection.zRevRangeWithScores(rawKey(key), range).map(this::readTypedTuple));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#reverseRangeByScore(java.lang.Object, org.springframework.data.domain.Range)
*/
@Override
public Flux reverseRangeByScore(K key, Range range) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
return createFlux(connection -> connection.zRevRangeByScore(rawKey(key), range).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#reverseRangeByScoreWithScores(java.lang.Object, org.springframework.data.domain.Range)
*/
@Override
public Flux> reverseRangeByScoreWithScores(K key, Range range) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
return createFlux(
connection -> connection.zRevRangeByScoreWithScores(rawKey(key), range).map(this::readTypedTuple));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#reverseRangeByScore(java.lang.Object, org.springframework.data.domain.Range, org.springframework.data.redis.connection.RedisZSetCommands.Limit)
*/
@Override
public Flux reverseRangeByScore(K key, Range range, Limit limit) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
return createFlux(connection -> connection.zRevRangeByScore(rawKey(key), range, limit).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#reverseRangeByScoreWithScores(java.lang.Object, org.springframework.data.domain.Range, org.springframework.data.redis.connection.RedisZSetCommands.Limit)
*/
@Override
public Flux> reverseRangeByScoreWithScores(K key, Range range, Limit limit) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
Assert.notNull(limit, "Limit must not be null!");
return createFlux(
connection -> connection.zRevRangeByScoreWithScores(rawKey(key), range, limit).map(this::readTypedTuple));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#scan(java.lang.Object, org.springframework.data.redis.core.ScanOptions)
*/
@Override
public Flux> scan(K key, ScanOptions options) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(options, "ScanOptions must not be null!");
return createFlux(connection -> connection.zScan(rawKey(key), options).map(this::readTypedTuple));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#count(java.lang.Object, org.springframework.data.domain.Range)
*/
@Override
public Mono count(K key, Range range) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
return createMono(connection -> connection.zCount(rawKey(key), range));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#size(java.lang.Object)
*/
@Override
public Mono size(K key) {
Assert.notNull(key, "Key must not be null!");
return createMono(connection -> connection.zCard(rawKey(key)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#score(java.lang.Object, java.lang.Object)
*/
@Override
@SuppressWarnings("unchecked")
public Mono score(K key, Object o) {
Assert.notNull(key, "Key must not be null!");
return createMono(connection -> connection.zScore(rawKey(key), rawValue((V) o)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#removeRange(java.lang.Object, org.springframework.data.domain.Range)
*/
@Override
public Mono removeRange(K key, Range range) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
return createMono(connection -> connection.zRemRangeByRank(rawKey(key), range));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#removeRangeByScore(java.lang.Object, org.springframework.data.domain.Range)
*/
@Override
public Mono removeRangeByScore(K key, Range range) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
return createMono(connection -> connection.zRemRangeByScore(rawKey(key), range));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#unionAndStore(java.lang.Object, java.lang.Object, java.lang.Object)
*/
@Override
public Mono unionAndStore(K key, K otherKey, K destKey) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(otherKey, "Other key must not be null!");
Assert.notNull(destKey, "Destination key must not be null!");
return unionAndStore(key, Collections.singleton(otherKey), destKey);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#unionAndStore(java.lang.Object, java.util.Collection, java.lang.Object)
*/
@Override
public Mono unionAndStore(K key, Collection otherKeys, K destKey) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(otherKeys, "Other keys must not be null!");
Assert.notNull(destKey, "Destination key must not be null!");
return createMono(connection -> Flux.fromIterable(getKeys(key, otherKeys)) //
.map(this::rawKey) //
.collectList() //
.flatMap(serialized -> connection.zUnionStore(rawKey(destKey), serialized)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#unionAndStore(java.lang.Object, java.util.Collection, java.lang.Object, org.springframework.data.redis.connection.RedisZSetCommands.Aggregate, org.springframework.data.redis.connection.RedisZSetCommands.Weights)
*/
@Override
public Mono unionAndStore(K key, Collection otherKeys, K destKey, Aggregate aggregate, Weights weights) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(otherKeys, "Other keys must not be null!");
Assert.notNull(destKey, "Destination key must not be null!");
Assert.notNull(aggregate, "Aggregate must not be null!");
Assert.notNull(weights, "Weights must not be null!");
return createMono(connection -> Flux.fromIterable(getKeys(key, otherKeys)) //
.map(this::rawKey) //
.collectList() //
.flatMap(serialized -> connection.zUnionStore(rawKey(destKey), serialized, weights, aggregate)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#intersectAndStore(java.lang.Object, java.lang.Object, java.lang.Object)
*/
@Override
public Mono intersectAndStore(K key, K otherKey, K destKey) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(otherKey, "Other key must not be null!");
Assert.notNull(destKey, "Destination key must not be null!");
return intersectAndStore(key, Collections.singleton(otherKey), destKey);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#intersectAndStore(java.lang.Object, java.util.Collection, java.lang.Object)
*/
@Override
public Mono intersectAndStore(K key, Collection otherKeys, K destKey) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(otherKeys, "Other keys must not be null!");
Assert.notNull(destKey, "Destination key must not be null!");
return createMono(connection -> Flux.fromIterable(getKeys(key, otherKeys)) //
.map(this::rawKey) //
.collectList() //
.flatMap(serialized -> connection.zInterStore(rawKey(destKey), serialized)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#intersectAndStore(java.lang.Object, java.util.Collection, java.lang.Object, org.springframework.data.redis.connection.RedisZSetCommands.Aggregate, org.springframework.data.redis.connection.RedisZSetCommands.Weights)
*/
@Override
public Mono intersectAndStore(K key, Collection otherKeys, K destKey, Aggregate aggregate, Weights weights) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(otherKeys, "Other keys must not be null!");
Assert.notNull(destKey, "Destination key must not be null!");
Assert.notNull(aggregate, "Aggregate must not be null!");
Assert.notNull(weights, "Weights must not be null!");
return createMono(connection -> Flux.fromIterable(getKeys(key, otherKeys)) //
.map(this::rawKey) //
.collectList() //
.flatMap(serialized -> connection.zInterStore(rawKey(destKey), serialized, weights, aggregate)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#rangeByLex(java.lang.Object, org.springframework.data.domain.Range)
*/
@Override
public Flux rangeByLex(K key, Range range) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
return createFlux(connection -> connection.zRangeByLex(rawKey(key), range).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#rangeByLex(java.lang.Object, org.springframework.data.domain.Range, org.springframework.data.redis.connection.RedisZSetCommands.Limit)
*/
@Override
public Flux rangeByLex(K key, Range range, Limit limit) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
Assert.notNull(limit, "Limit must not be null!");
return createFlux(connection -> connection.zRangeByLex(rawKey(key), range, limit).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#reverseRangeByLex(java.lang.Object, org.springframework.data.domain.Range)
*/
@Override
public Flux reverseRangeByLex(K key, Range range) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
return createFlux(connection -> connection.zRevRangeByLex(rawKey(key), range).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#reverseRangeByLex(java.lang.Object, org.springframework.data.domain.Range, org.springframework.data.redis.connection.RedisZSetCommands.Limit)
*/
@Override
public Flux reverseRangeByLex(K key, Range range, Limit limit) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null!");
Assert.notNull(limit, "Limit must not be null!");
return createFlux(connection -> connection.zRevRangeByLex(rawKey(key), range, limit).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveZSetOperations#delete(java.lang.Object)
*/
@Override
public Mono delete(K key) {
Assert.notNull(key, "Key must not be null!");
return template.createMono(connection -> connection.keyCommands().del(rawKey(key))).map(l -> l != 0);
}
private Mono createMono(Function> function) {
Assert.notNull(function, "Function must not be null!");
return template.createMono(connection -> function.apply(connection.zSetCommands()));
}
private Flux createFlux(Function> function) {
Assert.notNull(function, "Function must not be null!");
return template.createFlux(connection -> function.apply(connection.zSetCommands()));
}
private ByteBuffer rawKey(K key) {
return serializationContext.getKeySerializationPair().write(key);
}
private List getKeys(K key, Collection otherKeys) {
List keys = new ArrayList<>(1 + otherKeys.size());
keys.add(key);
keys.addAll(otherKeys);
return keys;
}
private ByteBuffer rawValue(V value) {
return serializationContext.getValueSerializationPair().write(value);
}
private V readValue(ByteBuffer buffer) {
return serializationContext.getValueSerializationPair().read(buffer);
}
private TypedTuple readTypedTuple(Tuple raw) {
return new DefaultTypedTuple<>(readValue(ByteBuffer.wrap(raw.getValue())), raw.getScore());
}
}
