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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.Collection;
import java.util.List;
import java.util.Map;
import java.util.function.Function;
import java.util.stream.Collectors;
import org.reactivestreams.Publisher;
import org.springframework.data.geo.Circle;
import org.springframework.data.geo.Distance;
import org.springframework.data.geo.GeoResult;
import org.springframework.data.geo.Metric;
import org.springframework.data.geo.Point;
import org.springframework.data.redis.connection.ReactiveGeoCommands;
import org.springframework.data.redis.connection.RedisGeoCommands.GeoLocation;
import org.springframework.data.redis.connection.RedisGeoCommands.GeoRadiusCommandArgs;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.util.Assert;
/**
* Default implementation of {@link ReactiveGeoOperations}.
*
* @author Mark Paluch
* @author Christoph Strobl
* @since 2.0
*/
@RequiredArgsConstructor
class DefaultReactiveGeoOperations implements ReactiveGeoOperations {
private final @NonNull ReactiveRedisTemplate template;
private final @NonNull RedisSerializationContext serializationContext;
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#add(java.lang.Object, org.springframework.data.geo.Point, java.lang.Object)
*/
@Override
public Mono add(K key, Point point, V member) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(point, "Point must not be null!");
Assert.notNull(member, "Member must not be null!");
return createMono(connection -> connection.geoAdd(rawKey(key), point, rawValue(member)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#add(java.lang.Object, org.springframework.data.redis.connection.RedisGeoCommands.GeoLocation)
*/
@Override
public Mono add(K key, GeoLocation location) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(location, "GeoLocation must not be null!");
return createMono(connection -> connection.geoAdd(rawKey(key),
new GeoLocation<>(rawValue(location.getName()), location.getPoint())));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#add(java.lang.Object, java.util.Map)
*/
@Override
public Mono add(K key, Map memberCoordinateMap) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(memberCoordinateMap, "MemberCoordinateMap must not be null!");
return createMono(connection -> {
Mono>> serializedList = Flux
.fromIterable(() -> memberCoordinateMap.entrySet().iterator())
.map(entry -> new GeoLocation<>(rawValue(entry.getKey()), entry.getValue())).collectList();
return serializedList.flatMap(list -> connection.geoAdd(rawKey(key), list));
});
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#add(java.lang.Object, java.lang.Iterable)
*/
@Override
public Mono add(K key, Iterable> geoLocations) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(geoLocations, "GeoLocations must not be null!");
return createMono(connection -> {
Mono>> serializedList = Flux.fromIterable(geoLocations)
.map(location -> new GeoLocation<>(rawValue(location.getName()), location.getPoint())).collectList();
return serializedList.flatMap(list -> connection.geoAdd(rawKey(key), list));
});
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#add(java.lang.Object, org.reactivestreams.Publisher)
*/
@Override
public Flux add(K key, Publisher>> locations) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(locations, "Locations must not be null!");
return createFlux(connection -> Flux.from(locations)
.map(locationList -> locationList.stream()
.map(location -> new GeoLocation<>(rawValue(location.getName()), location.getPoint()))
.collect(Collectors.toList()))
.flatMap(list -> connection.geoAdd(rawKey(key), list)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#distance(java.lang.Object, java.lang.Object, java.lang.Object)
*/
@Override
public Mono distance(K key, V member1, V member2) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(member1, "Member 1 must not be null!");
Assert.notNull(member2, "Member 2 must not be null!");
return createMono(connection -> connection.geoDist(rawKey(key), rawValue(member1), rawValue(member2)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#distance(java.lang.Object, java.lang.Object, java.lang.Object, org.springframework.data.geo.Metric)
*/
@Override
public Mono distance(K key, V member1, V member2, Metric metric) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(member1, "Member 1 must not be null!");
Assert.notNull(member2, "Member 2 must not be null!");
Assert.notNull(metric, "Metric must not be null!");
return createMono(connection -> connection.geoDist(rawKey(key), rawValue(member1), rawValue(member2), metric));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#hash(java.lang.Object, java.lang.Object)
*/
@Override
public Mono hash(K key, V member) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(member, "Member must not be null!");
return createMono(connection -> connection.geoHash(rawKey(key), rawValue(member)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#hash(java.lang.Object, java.lang.Object[])
*/
@Override
@SafeVarargs
public final Mono> hash(K key, V... members) {
Assert.notNull(key, "Key must not be null!");
Assert.notEmpty(members, "Members must not be null or empty!");
Assert.noNullElements(members, "Members must not contain null elements!");
return createMono(connection -> Flux.fromArray(members) //
.map(this::rawValue) //
.collectList() //
.flatMap(serialized -> connection.geoHash(rawKey(key), serialized)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#position(java.lang.Object, java.lang.Object)
*/
@Override
public Mono position(K key, V member) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(member, "Member must not be null!");
return createMono(connection -> connection.geoPos(rawKey(key), rawValue(member)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#position(java.lang.Object, java.lang.Object[])
*/
@Override
@SafeVarargs
public final Mono> position(K key, V... members) {
Assert.notNull(key, "Key must not be null!");
Assert.notEmpty(members, "Members must not be null or empty!");
Assert.noNullElements(members, "Members must not contain null elements!");
return createMono(connection -> Flux.fromArray(members) //
.map(this::rawValue) //
.collectList() //
.flatMap(serialized -> connection.geoPos(rawKey(key), serialized)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#radius(java.lang.Object, org.springframework.data.geo.Circle)
*/
@Override
public Flux>> radius(K key, Circle within) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(within, "Circle must not be null!");
return createFlux(connection -> connection.geoRadius(rawKey(key), within).map(this::readGeoResult));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#radius(java.lang.Object, org.springframework.data.geo.Circle, org.springframework.data.redis.connection.RedisGeoCommands.GeoRadiusCommandArgs)
*/
@Override
public Flux>> radius(K key, Circle within, GeoRadiusCommandArgs args) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(within, "Circle must not be null!");
Assert.notNull(args, "GeoRadiusCommandArgs must not be null!");
return createFlux(connection -> connection.geoRadius(rawKey(key), within, args) //
.map(this::readGeoResult));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#radius(java.lang.Object, java.lang.Object, double)
*/
@Override
public Flux>> radius(K key, V member, double radius) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(member, "Member must not be null!");
return createFlux(connection -> connection.geoRadiusByMember(rawKey(key), rawValue(member), new Distance(radius)) //
.map(this::readGeoResult));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#radius(java.lang.Object, java.lang.Object, org.springframework.data.geo.Distance)
*/
@Override
public Flux>> radius(K key, V member, Distance distance) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(member, "Member must not be null!");
Assert.notNull(distance, "Distance must not be null!");
return createFlux(connection -> connection.geoRadiusByMember(rawKey(key), rawValue(member), distance) //
.map(this::readGeoResult));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#radius(java.lang.Object, java.lang.Object, org.springframework.data.geo.Distance, org.springframework.data.redis.connection.RedisGeoCommands.GeoRadiusCommandArgs)
*/
@Override
public Flux>> radius(K key, V member, Distance distance, GeoRadiusCommandArgs args) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(member, "Member must not be null!");
Assert.notNull(distance, "Distance must not be null!");
Assert.notNull(args, "GeoRadiusCommandArgs must not be null!");
return createFlux(connection -> connection.geoRadiusByMember(rawKey(key), rawValue(member), distance, args))
.map(this::readGeoResult);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#remove(java.lang.Object, java.lang.Object[])
*/
@Override
@SafeVarargs
public final Mono remove(K key, V... members) {
Assert.notNull(key, "Key must not be null!");
Assert.notEmpty(members, "Members must not be null or empty!");
Assert.noNullElements(members, "Members must not contain null elements!");
return template.createMono(connection -> Flux.fromArray(members) //
.map(this::rawValue) //
.collectList() //
.flatMap(serialized -> connection.zSetCommands().zRem(rawKey(key), serialized)));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.core.ReactiveGeoOperations#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.geoCommands()));
}
private Flux createFlux(Function> function) {
Assert.notNull(function, "Function must not be null!");
return template.createFlux(connection -> function.apply(connection.geoCommands()));
}
private ByteBuffer rawKey(K key) {
return serializationContext.getKeySerializationPair().write(key);
}
private ByteBuffer rawValue(V value) {
return serializationContext.getValueSerializationPair().write(value);
}
private V readValue(ByteBuffer buffer) {
return serializationContext.getValueSerializationPair().read(buffer);
}
private GeoResult> readGeoResult(GeoResult> source) {
return new GeoResult<>(new GeoLocation(readValue(source.getContent().getName()), source.getContent().getPoint()),
source.getDistance());
}
}
