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/*
* Copyright 2016-2018 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.connection.lettuce;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import org.reactivestreams.Publisher;
import org.springframework.data.redis.connection.ReactiveNumberCommands;
import org.springframework.data.redis.connection.ReactiveRedisConnection.KeyCommand;
import org.springframework.data.redis.connection.ReactiveRedisConnection.NumericResponse;
import org.springframework.util.Assert;
import org.springframework.util.NumberUtils;
/**
* @author Christoph Strobl
* @author Mark Paluch
* @since 2.0
*/
class LettuceReactiveNumberCommands implements ReactiveNumberCommands {
private final LettuceReactiveRedisConnection connection;
/**
* Create new {@link LettuceReactiveNumberCommands}.
*
* @param connection must not be {@literal null}.
*/
LettuceReactiveNumberCommands(LettuceReactiveRedisConnection connection) {
Assert.notNull(connection, "Connection must not be null!");
this.connection = connection;
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.ReactiveRedisConnection.ReactiveNumberCommands#incr(org.reactivestreams.Publisher)
*/
@Override
public Flux> incr(Publisher commands) {
return connection.execute(cmd -> Flux.from(commands).concatMap(command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
return cmd.incr(command.getKey()).map(value -> new NumericResponse<>(command, value));
}));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.ReactiveRedisConnection.ReactiveNumberCommands#incrBy(org.reactivestreams.Publisher, java.util.function.Supplier)
*/
@Override
public Flux, T>> incrBy(Publisher> commands) {
return connection.execute(cmd -> Flux.from(commands).concatMap(command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
Assert.notNull(command.getValue(), "Value for INCRBY must not be null.");
T incrBy = command.getValue();
Mono result;
if (incrBy instanceof Double || incrBy instanceof Float) {
result = cmd.incrbyfloat(command.getKey(), incrBy.doubleValue());
} else {
result = cmd.incrby(command.getKey(), incrBy.longValue());
}
return result.map(val -> NumberUtils.convertNumberToTargetClass(val, incrBy.getClass()))
.map(res -> new NumericResponse<>(command, (T) res));
}));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.ReactiveRedisConnection.ReactiveNumberCommands#decr(org.reactivestreams.Publisher)
*/
@Override
public Flux> decr(Publisher commands) {
return connection.execute(cmd -> Flux.from(commands).concatMap(command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
return cmd.decr(command.getKey()).map(value -> new NumericResponse<>(command, value));
}));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.ReactiveRedisConnection.ReactiveNumberCommands#decrBy(org.reactivestreams.Publisher, java.util.function.Supplier)
*/
@Override
public Flux, T>> decrBy(Publisher> commands) {
return connection.execute(cmd -> Flux.from(commands).concatMap(command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
Assert.notNull(command.getValue(), "Value for DECRBY must not be null.");
T decrBy = command.getValue();
Mono result = null;
if (decrBy instanceof Double || decrBy instanceof Float) {
result = cmd.incrbyfloat(command.getKey(), decrBy.doubleValue() * (-1.0D));
} else {
result = cmd.decrby(command.getKey(), decrBy.longValue());
}
return result.map(val -> NumberUtils.convertNumberToTargetClass(val, decrBy.getClass()))
.map(res -> new NumericResponse<>(command, (T) res));
}));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.ReactiveNumberCommands#hIncrBy(org.reactivestreams.Publisher)
*/
@Override
public Flux, T>> hIncrBy(Publisher> commands) {
return connection.execute(cmd -> Flux.from(commands).concatMap(command -> {
Assert.notNull(command.getKey(), "Key must not be null!");
Assert.notNull(command.getValue(), "Value must not be null!");
T incrBy = command.getValue();
Mono result = null;
if (incrBy instanceof Double || incrBy instanceof Float) {
result = cmd.hincrbyfloat(command.getKey(), command.getField(), incrBy.doubleValue());
} else {
result = cmd.hincrby(command.getKey(), command.getField(), incrBy.longValue());
}
return result.map(val -> NumberUtils.convertNumberToTargetClass(val, incrBy.getClass()))
.map(value -> new NumericResponse<>(command, (T) value));
}));
}
}