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/*
* Copyright 2017-2022 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
*
* https://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 io.lettuce.core.BitFieldArgs;
import io.lettuce.core.api.async.RedisStringAsyncCommands;
import java.util.List;
import java.util.Map;
import org.springframework.data.domain.Range;
import org.springframework.data.redis.connection.BitFieldSubCommands;
import org.springframework.data.redis.connection.RedisStringCommands;
import org.springframework.data.redis.connection.convert.Converters;
import org.springframework.data.redis.core.types.Expiration;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
/**
* @author Christoph Strobl
* @author Mark Paluch
* @author dengliming
* @since 2.0
*/
class LettuceStringCommands implements RedisStringCommands {
private final LettuceConnection connection;
LettuceStringCommands(LettuceConnection connection) {
this.connection = connection;
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#get(byte[])
*/
@Override
public byte[] get(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::get, key);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#getDel(byte[])
*/
@Nullable
@Override
public byte[] getDel(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::getdel, key);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#getEx(byte[], org.springframework.data.redis.core.types.Expiration)
*/
@Nullable
@Override
public byte[] getEx(byte[] key, Expiration expiration) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(expiration, "Expiration must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::getex, key, LettuceConverters.toGetExArgs(expiration));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#getSet(byte[], byte[])
*/
@Override
public byte[] getSet(byte[] key, byte[] value) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(value, "Value must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::getset, key, value);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#mGet(byte[][])
*/
@Override
public List mGet(byte[]... keys) {
Assert.notNull(keys, "Keys must not be null!");
Assert.noNullElements(keys, "Keys must not contain null elements!");
return connection.invoke().fromMany(RedisStringAsyncCommands::mget, keys)
.toList(source -> source.getValueOrElse(null));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#set(byte[], byte[])
*/
@Override
public Boolean set(byte[] key, byte[] value) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(value, "Value must not be null!");
return connection.invoke().from(RedisStringAsyncCommands::set, key, value)
.get(Converters.stringToBooleanConverter());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#set(byte[], byte[], org.springframework.data.redis.core.types.Expiration, org.springframework.data.redis.connection.RedisStringCommands.SetOption)
*/
@Override
public Boolean set(byte[] key, byte[] value, Expiration expiration, SetOption option) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(value, "Value must not be null!");
Assert.notNull(expiration, "Expiration must not be null!");
Assert.notNull(option, "Option must not be null!");
return connection.invoke()
.from(RedisStringAsyncCommands::set, key, value, LettuceConverters.toSetArgs(expiration, option))
.orElse(LettuceConverters.stringToBooleanConverter(), false);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#setNX(byte[], byte[])
*/
@Override
public Boolean setNX(byte[] key, byte[] value) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(value, "Value must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::setnx, key, value);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#setEx(byte[], long, byte[])
*/
@Override
public Boolean setEx(byte[] key, long seconds, byte[] value) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(value, "Value must not be null!");
return connection.invoke().from(RedisStringAsyncCommands::setex, key, seconds, value)
.get(Converters.stringToBooleanConverter());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#pSetEx(byte[], long, byte[])
*/
@Override
public Boolean pSetEx(byte[] key, long milliseconds, byte[] value) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(value, "Value must not be null!");
return connection.invoke().from(RedisStringAsyncCommands::psetex, key, milliseconds, value)
.get(Converters.stringToBooleanConverter());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#mSet(java.util.Map)
*/
@Override
public Boolean mSet(Map tuples) {
Assert.notNull(tuples, "Tuples must not be null!");
return connection.invoke().from(RedisStringAsyncCommands::mset, tuples).get(Converters.stringToBooleanConverter());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#mSetNX(java.util.Map)
*/
@Override
public Boolean mSetNX(Map tuples) {
Assert.notNull(tuples, "Tuples must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::msetnx, tuples);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#incr(byte[])
*/
@Override
public Long incr(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::incr, key);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#incrBy(byte[], long)
*/
@Override
public Long incrBy(byte[] key, long value) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::incrby, key, value);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#incrBy(byte[], double)
*/
@Override
public Double incrBy(byte[] key, double value) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::incrbyfloat, key, value);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#decr(byte[])
*/
@Override
public Long decr(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::decr, key);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#decrBy(byte[], long)
*/
@Override
public Long decrBy(byte[] key, long value) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::decrby, key, value);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#append(byte[], byte[])
*/
@Override
public Long append(byte[] key, byte[] value) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(value, "Value must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::append, key, value);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#getRange(byte[], long, long)
*/
@Override
public byte[] getRange(byte[] key, long start, long end) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::getrange, key, start, end);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#setRange(byte[], byte[], long)
*/
@Override
public void setRange(byte[] key, byte[] value, long offset) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(value, "Value must not be null!");
connection.invokeStatus().just(RedisStringAsyncCommands::setrange, key, offset, value);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#getBit(byte[], long)
*/
@Override
public Boolean getBit(byte[] key, long offset) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().from(RedisStringAsyncCommands::getbit, key, offset)
.get(LettuceConverters.longToBoolean());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#setBit(byte[], long, boolean)
*/
@Override
public Boolean setBit(byte[] key, long offset, boolean value) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().from(RedisStringAsyncCommands::setbit, key, offset, LettuceConverters.toInt(value))
.get(LettuceConverters.longToBoolean());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#bitCount(byte[])
*/
@Override
public Long bitCount(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::bitcount, key);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#bitCount(byte[], long, long)
*/
@Override
public Long bitCount(byte[] key, long start, long end) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::bitcount, key, start, end);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#bitfield(byte[], BitfieldCommand)
*/
@Override
public List bitField(byte[] key, BitFieldSubCommands subCommands) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(subCommands, "Command must not be null!");
BitFieldArgs args = LettuceConverters.toBitFieldArgs(subCommands);
return connection.invoke().just(RedisStringAsyncCommands::bitfield, key, args);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#bitOp(org.springframework.data.redis.connection.RedisStringCommands.BitOperation, byte[], byte[][])
*/
@Override
public Long bitOp(BitOperation op, byte[] destination, byte[]... keys) {
Assert.notNull(op, "BitOperation must not be null!");
Assert.notNull(destination, "Destination key must not be null!");
if (op == BitOperation.NOT && keys.length > 1) {
throw new UnsupportedOperationException("Bitop NOT should only be performed against one key");
}
return connection.invoke().just(it -> {
switch (op) {
case AND:
return it.bitopAnd(destination, keys);
case OR:
return it.bitopOr(destination, keys);
case XOR:
return it.bitopXor(destination, keys);
case NOT:
if (keys.length != 1) {
throw new UnsupportedOperationException("Bitop NOT should only be performed against one key");
}
return it.bitopNot(destination, keys[0]);
default:
throw new UnsupportedOperationException("Bit operation " + op + " is not supported");
}
});
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#bitPos(byte[], boolean, org.springframework.data.domain.Range)
*/
@Nullable
@Override
public Long bitPos(byte[] key, boolean bit, Range range) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(range, "Range must not be null! Use Range.unbounded() instead.");
if (range.getLowerBound().isBounded()) {
if (range.getUpperBound().isBounded()) {
return connection.invoke().just(RedisStringAsyncCommands::bitpos, key, bit, getLowerValue(range),
getUpperValue(range));
}
return connection.invoke().just(RedisStringAsyncCommands::bitpos, key, bit, getLowerValue(range));
}
return connection.invoke().just(RedisStringAsyncCommands::bitpos, key, bit);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisStringCommands#strLen(byte[])
*/
@Override
public Long strLen(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisStringAsyncCommands::strlen, key);
}
private static > T getUpperValue(Range range) {
return range.getUpperBound().getValue()
.orElseThrow(() -> new IllegalArgumentException("Range does not contain upper bound value!"));
}
private static > T getLowerValue(Range range) {
return range.getLowerBound().getValue()
.orElseThrow(() -> new IllegalArgumentException("Range does not contain lower bound value!"));
}
}