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org.springframework.data.redis.connection.lettuce.LettuceKeyCommands Maven / Gradle / Ivy
/*
* 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.CopyArgs;
import io.lettuce.core.KeyScanCursor;
import io.lettuce.core.RestoreArgs;
import io.lettuce.core.ScanArgs;
import io.lettuce.core.ScanCursor;
import io.lettuce.core.SortArgs;
import io.lettuce.core.api.async.RedisKeyAsyncCommands;
import java.time.Duration;
import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import org.springframework.data.redis.connection.DataType;
import org.springframework.data.redis.connection.RedisKeyCommands;
import org.springframework.data.redis.connection.SortParameters;
import org.springframework.data.redis.connection.ValueEncoding;
import org.springframework.data.redis.connection.ValueEncoding.RedisValueEncoding;
import org.springframework.data.redis.connection.convert.Converters;
import org.springframework.data.redis.core.Cursor;
import org.springframework.data.redis.core.ScanOptions;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
/**
* @author Christoph Strobl
* @author Mark Paluch
* @author ihaohong
* @since 2.0
*/
class LettuceKeyCommands implements RedisKeyCommands {
private final LettuceConnection connection;
LettuceKeyCommands(LettuceConnection connection) {
this.connection = connection;
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#copy(byte[], byte[])
*/
@Override
public Boolean copy(byte[] sourceKey, byte[] targetKey, boolean replace) {
Assert.notNull(sourceKey, "source key must not be null!");
Assert.notNull(targetKey, "target key must not be null!");
return connection.invoke().just(RedisKeyAsyncCommands::copy, sourceKey, targetKey,
CopyArgs.Builder.replace(replace));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#exists(byte[])
*/
@Override
public Boolean exists(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().from(RedisKeyAsyncCommands::exists, key).get(LettuceConverters.longToBooleanConverter());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#exists(byte[][])
*/
@Nullable
@Override
public Long exists(byte[]... keys) {
Assert.notNull(keys, "Keys must not be null!");
Assert.noNullElements(keys, "Keys must not contain null elements!");
return connection.invoke().just(RedisKeyAsyncCommands::exists, keys);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#del(byte[][])
*/
@Override
public Long del(byte[]... keys) {
Assert.notNull(keys, "Keys must not be null!");
Assert.noNullElements(keys, "Keys must not contain null elements!");
return connection.invoke().just(RedisKeyAsyncCommands::del, keys);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#unlink(byte[][])
*/
@Override
public Long unlink(byte[]... keys) {
Assert.notNull(keys, "Keys must not be null!");
return connection.invoke().just(RedisKeyAsyncCommands::unlink, keys);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#type(byte[])
*/
@Override
public DataType type(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().from(RedisKeyAsyncCommands::type, key).get(LettuceConverters.stringToDataType());
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#touch(byte[][])
*/
@Override
public Long touch(byte[]... keys) {
Assert.notNull(keys, "Keys must not be null!");
return connection.invoke().just(RedisKeyAsyncCommands::touch, keys);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#keys(byte[])
*/
@Override
public Set keys(byte[] pattern) {
Assert.notNull(pattern, "Pattern must not be null!");
return connection.invoke().fromMany(RedisKeyAsyncCommands::keys, pattern).toSet();
}
/**
* @since 1.4
* @return
*/
public Cursor scan() {
return scan(ScanOptions.NONE);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#scan(org.springframework.data.redis.core.ScanOptions)
*/
@Override
public Cursor scan(ScanOptions options) {
return doScan(options != null ? options : ScanOptions.NONE);
}
/**
* @since 1.4
* @param options
* @return
*/
private Cursor doScan(ScanOptions options) {
return new LettuceScanCursor(options) {
@Override
protected LettuceScanIteration doScan(ScanCursor cursor, ScanOptions options) {
if (connection.isQueueing() || connection.isPipelined()) {
throw new UnsupportedOperationException("'SCAN' cannot be called in pipeline / transaction mode.");
}
ScanArgs scanArgs = LettuceConverters.toScanArgs(options);
KeyScanCursor keyScanCursor = connection.invoke().just(RedisKeyAsyncCommands::scan, cursor, scanArgs);
List keys = keyScanCursor.getKeys();
return new LettuceScanIteration<>(keyScanCursor, keys);
}
@Override
protected void doClose() {
LettuceKeyCommands.this.connection.close();
}
}.open();
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#randomKey()
*/
@Override
public byte[] randomKey() {
return connection.invoke().just(RedisKeyAsyncCommands::randomkey);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#rename(byte[], byte[])
*/
@Override
public void rename(byte[] oldKey, byte[] newKey) {
Assert.notNull(oldKey, "Old key must not be null!");
Assert.notNull(newKey, "New key must not be null!");
connection.invokeStatus().just(RedisKeyAsyncCommands::rename, oldKey, newKey);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#renameNX(byte[], byte[])
*/
@Override
public Boolean renameNX(byte[] sourceKey, byte[] targetKey) {
Assert.notNull(sourceKey, "Source key must not be null!");
Assert.notNull(targetKey, "Target key must not be null!");
return connection.invoke().just(RedisKeyAsyncCommands::renamenx, sourceKey, targetKey);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#expire(byte[], long)
*/
@Override
public Boolean expire(byte[] key, long seconds) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisKeyAsyncCommands::expire, key, seconds);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#pExpire(byte[], long)
*/
@Override
public Boolean pExpire(byte[] key, long millis) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisKeyAsyncCommands::pexpire, key, millis);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#expireAt(byte[], long)
*/
@Override
public Boolean expireAt(byte[] key, long unixTime) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisKeyAsyncCommands::expireat, key, unixTime);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#pExpireAt(byte[], long)
*/
@Override
public Boolean pExpireAt(byte[] key, long unixTimeInMillis) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisKeyAsyncCommands::pexpireat, key, unixTimeInMillis);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#persist(byte[])
*/
@Override
public Boolean persist(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisKeyAsyncCommands::persist, key);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#move(byte[], int)
*/
@Override
public Boolean move(byte[] key, int dbIndex) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisKeyAsyncCommands::move, key, dbIndex);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#ttl(byte[])
*/
@Override
public Long ttl(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisKeyAsyncCommands::ttl, key);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#ttl(byte[], java.util.concurrent.TimeUnit)
*/
@Override
public Long ttl(byte[] key, TimeUnit timeUnit) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().from(RedisKeyAsyncCommands::ttl, key).get(Converters.secondsToTimeUnit(timeUnit));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#pTtl(byte[])
*/
@Override
public Long pTtl(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisKeyAsyncCommands::pttl, key);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#pTtl(byte[], java.util.concurrent.TimeUnit)
*/
@Override
public Long pTtl(byte[] key, TimeUnit timeUnit) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().from(RedisKeyAsyncCommands::pttl, key).get(Converters.millisecondsToTimeUnit(timeUnit));
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#sort(byte[], org.springframework.data.redis.connection.SortParameters)
*/
@Override
public List sort(byte[] key, SortParameters params) {
Assert.notNull(key, "Key must not be null!");
SortArgs args = LettuceConverters.toSortArgs(params);
return connection.invoke().just(RedisKeyAsyncCommands::sort, key, args);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#sort(byte[], org.springframework.data.redis.connection.SortParameters, byte[])
*/
@Override
public Long sort(byte[] key, SortParameters params, byte[] sortKey) {
Assert.notNull(key, "Key must not be null!");
SortArgs args = LettuceConverters.toSortArgs(params);
return connection.invoke().just(RedisKeyAsyncCommands::sortStore, key, args, sortKey);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#dump(byte[])
*/
@Override
public byte[] dump(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisKeyAsyncCommands::dump, key);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#restore(byte[], long, byte[], boolean)
*/
@Override
public void restore(byte[] key, long ttlInMillis, byte[] serializedValue, boolean replace) {
Assert.notNull(key, "Key must not be null!");
Assert.notNull(serializedValue, "Serialized value must not be null!");
RestoreArgs restoreArgs = RestoreArgs.Builder.ttl(ttlInMillis).replace(replace);
connection.invokeStatus().just(RedisKeyAsyncCommands::restore, key, serializedValue, restoreArgs);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#encoding(byte[])
*/
@Nullable
@Override
public ValueEncoding encodingOf(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().from(RedisKeyAsyncCommands::objectEncoding, key).orElse(ValueEncoding::of,
RedisValueEncoding.VACANT);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#idletime(byte[])
*/
@Nullable
@Override
public Duration idletime(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().from(RedisKeyAsyncCommands::objectIdletime, key).get(Converters::secondsToDuration);
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#refcount(byte[])
*/
@Nullable
@Override
public Long refcount(byte[] key) {
Assert.notNull(key, "Key must not be null!");
return connection.invoke().just(RedisKeyAsyncCommands::objectRefcount, key);
}
}
