Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* 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.redis.connection.ReactiveSetCommands;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.util.Assert;
/**
* Default implementation of {@link ReactiveSetOperations}.
*
* @author Mark Paluch
* @author Christoph Strobl
* @since 2.0
*/
@RequiredArgsConstructor
class DefaultReactiveSetOperations implements ReactiveSetOperations {
private final @NonNull ReactiveRedisTemplate template;
private final @NonNull RedisSerializationContext serializationContext;
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#add(java.lang.Object, java.lang.Object[])
*/
@Override
public Mono add(K key, V... values) {
Assert.notNull(key, "Key must not be null!");
if (values.length == 1) {
return createMono(connection -> connection.sAdd(rawKey(key), rawValue(values[0])));
}
return createMono(connection -> Flux.fromArray(values) //
.map(this::rawValue) //
.collectList() //
.flatMap(serialized -> connection.sAdd(rawKey(key), serialized)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#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!");
if (values.length == 1) {
return createMono(connection -> connection.sRem(rawKey(key), rawValue((V) values[0])));
}
return createMono(connection -> Flux.fromArray((V[]) values) //
.map(this::rawValue) //
.collectList() //
.flatMap(serialized -> connection.sRem(rawKey(key), serialized)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#pop(java.lang.Object)
*/
@Override
public Mono pop(K key) {
Assert.notNull(key, "Key must not be null!");
return createMono(connection -> connection.sPop(rawKey(key)).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#pop(java.lang.Object, long)
*/
@Override
public Flux pop(K key, long count) {
Assert.notNull(key, "Key must not be null!");
return createFlux(connection -> connection.sPop(rawKey(key), count).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#move(java.lang.Object, java.lang.Object, java.lang.Object)
*/
@Override
public Mono move(K sourceKey, V value, K destKey) {
Assert.notNull(sourceKey, "Source key must not be null!");
Assert.notNull(destKey, "Destination key must not be null!");
return createMono(connection -> connection.sMove(rawKey(sourceKey), rawKey(destKey), rawValue(value)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#size(java.lang.Object)
*/
@Override
public Mono size(K key) {
Assert.notNull(key, "Key must not be null!");
return createMono(connection -> connection.sCard(rawKey(key)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#isMember(java.lang.Object, java.lang.Object)
*/
@Override
@SuppressWarnings("unchecked")
public Mono isMember(K key, Object o) {
Assert.notNull(key, "Key must not be null!");
return createMono(connection -> connection.sIsMember(rawKey(key), rawValue((V) o)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#intersect(java.lang.Object, java.lang.Object)
*/
@Override
public Flux intersect(K key, K otherKey) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(otherKey, "Other key must not be null!");
return intersect(key, Collections.singleton(otherKey));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#intersect(java.lang.Object, java.util.Collection)
*/
@Override
public Flux intersect(K key, Collection otherKeys) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(otherKeys, "Other keys must not be null!");
return createFlux(connection -> Flux.fromIterable(getKeys(key, otherKeys)) //
.map(this::rawKey) //
.collectList() //
.flatMapMany(connection::sInter) //
.map(this::readValue));
}
/* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#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.ReactiveSetOperations#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(rawKeys -> connection.sInterStore(rawKey(destKey), rawKeys)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#union(java.lang.Object, java.lang.Object)
*/
@Override
public Flux union(K key, K otherKey) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(otherKey, "Other key must not be null!");
return union(key, Collections.singleton(otherKey));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#union(java.lang.Object, java.util.Collection)
*/
@Override
public Flux union(K key, Collection otherKeys) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(otherKeys, "Other keys must not be null!");
return createFlux(connection -> Flux.fromIterable(getKeys(key, otherKeys)) //
.map(this::rawKey) //
.collectList() //
.flatMapMany(connection::sUnion) //
.map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#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.ReactiveSetOperations#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(rawKeys -> connection.sUnionStore(rawKey(destKey), rawKeys)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#difference(java.lang.Object, java.lang.Object)
*/
@Override
public Flux difference(K key, K otherKey) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(otherKey, "Other key must not be null!");
return difference(key, Collections.singleton(otherKey));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#difference(java.lang.Object, java.util.Collection)
*/
@Override
public Flux difference(K key, Collection otherKeys) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(otherKeys, "Other keys must not be null!");
return createFlux(connection -> Flux.fromIterable(getKeys(key, otherKeys)) //
.map(this::rawKey) //
.collectList() //
.flatMapMany(connection::sDiff) //
.map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#differenceAndStore(java.lang.Object, java.lang.Object, java.lang.Object)
*/
@Override
public Mono differenceAndStore(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 differenceAndStore(key, Collections.singleton(otherKey), destKey);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#differenceAndStore(java.lang.Object, java.util.Collection, java.lang.Object)
*/
@Override
public Mono differenceAndStore(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(rawKeys -> connection.sDiffStore(rawKey(destKey), rawKeys)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#members(java.lang.Object)
*/
@Override
public Flux members(K key) {
Assert.notNull(key, "Key must not be null!");
return createFlux(connection -> connection.sMembers(rawKey(key)).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#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.sScan(rawKey(key)).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#randomMember(java.lang.Object)
*/
@Override
public Mono randomMember(K key) {
Assert.notNull(key, "Key must not be null!");
return createMono(connection -> connection.sRandMember(rawKey(key)).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#distinctRandomMembers(java.lang.Object, long)
*/
@Override
public Flux distinctRandomMembers(K key, long count) {
Assert.isTrue(count > 0, "Negative count not supported. Use randomMembers to allow duplicate elements.");
return createFlux(connection -> connection.sRandMember(rawKey(key), count).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#randomMembers(java.lang.Object, long)
*/
@Override
public Flux randomMembers(K key, long count) {
Assert.isTrue(count > 0, "Use a positive number for count. This method is already allowing duplicate elements.");
return createFlux(connection -> connection.sRandMember(rawKey(key), -count).map(this::readValue));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveSetOperations#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.setCommands()));
}
private Flux createFlux(Function> function) {
Assert.notNull(function, "Function must not be null!");
return template.createFlux(connection -> function.apply(connection.setCommands()));
}
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);
}
}
