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org.springframework.data.redis.connection.lettuce.LettuceKeyCommands Maven / Gradle / Ivy
/*
* 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.connection.lettuce;
import io.lettuce.core.KeyScanCursor;
import io.lettuce.core.ScanArgs;
import io.lettuce.core.ScanCursor;
import io.lettuce.core.SortArgs;
import io.lettuce.core.cluster.api.async.RedisClusterAsyncCommands;
import io.lettuce.core.cluster.api.sync.RedisClusterCommands;
import io.lettuce.core.codec.ByteArrayCodec;
import io.lettuce.core.output.StatusOutput;
import io.lettuce.core.protocol.CommandArgs;
import io.lettuce.core.protocol.CommandType;
import lombok.NonNull;
import lombok.RequiredArgsConstructor;
import java.time.Duration;
import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import org.springframework.dao.DataAccessException;
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
* @since 2.0
*/
@RequiredArgsConstructor
class LettuceKeyCommands implements RedisKeyCommands {
private final @NonNull LettuceConnection connection;
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().exists(new byte[][] { key }),
LettuceConverters.longToBooleanConverter()));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().exists(new byte[][] { key }),
LettuceConverters.longToBooleanConverter()));
return null;
}
return LettuceConverters.longToBooleanConverter().convert(getConnection().exists(new byte[][] { key }));
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().exists(keys)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().exists(keys)));
return null;
}
return getConnection().exists(keys);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#del(byte[][])
*/
@Override
public Long del(byte[]... keys) {
Assert.noNullElements(keys, "Keys must not be null!");
Assert.noNullElements(keys, "Keys must not contain null elements!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().del(keys)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().del(keys)));
return null;
}
return getConnection().del(keys);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().unlink(keys)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().unlink(keys)));
return null;
}
return getConnection().unlink(keys);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().type(key), LettuceConverters.stringToDataType()));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().type(key), LettuceConverters.stringToDataType()));
return null;
}
return LettuceConverters.toDataType(getConnection().type(key));
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().touch(keys)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().touch(keys)));
return null;
}
return getConnection().touch(keys);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(
connection.newLettuceResult(getAsyncConnection().keys(pattern), LettuceConverters.bytesListToBytesSet()));
return null;
}
if (isQueueing()) {
transaction(
connection.newLettuceResult(getAsyncConnection().keys(pattern), LettuceConverters.bytesListToBytesSet()));
return null;
}
return LettuceConverters.toBytesSet(getConnection().keys(pattern));
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/**
* @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 (isQueueing() || isPipelined()) {
throw new UnsupportedOperationException("'SCAN' cannot be called in pipeline / transaction mode.");
}
ScanArgs scanArgs = LettuceConverters.toScanArgs(options);
KeyScanCursor keyScanCursor = getConnection().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() {
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().randomkey()));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().randomkey()));
return null;
}
return getConnection().randomkey();
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (non-Javadoc)
* @see org.springframework.data.redis.connection.RedisKeyCommands#rename(byte[], byte[])
*/
@Override
public void rename(byte[] sourceKey, byte[] targetKey) {
Assert.notNull(sourceKey, "Source key must not be null!");
Assert.notNull(targetKey, "Target key must not be null!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceStatusResult(getAsyncConnection().rename(sourceKey, targetKey)));
return;
}
if (isQueueing()) {
transaction(connection.newLettuceStatusResult(getAsyncConnection().rename(sourceKey, targetKey)));
return;
}
getConnection().rename(sourceKey, targetKey);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().renamenx(sourceKey, targetKey)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().renamenx(sourceKey, targetKey)));
return null;
}
return (getConnection().renamenx(sourceKey, targetKey));
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().expire(key, seconds)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().expire(key, seconds)));
return null;
}
return getConnection().expire(key, seconds);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().pexpire(key, millis)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().pexpire(key, millis)));
return null;
}
return getConnection().pexpire(key, millis);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().expireat(key, unixTime)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().expireat(key, unixTime)));
return null;
}
return getConnection().expireat(key, unixTime);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().pexpireat(key, unixTimeInMillis)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().pexpireat(key, unixTimeInMillis)));
return null;
}
return getConnection().pexpireat(key, unixTimeInMillis);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().persist(key)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().persist(key)));
return null;
}
return getConnection().persist(key);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().move(key, dbIndex)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().move(key, dbIndex)));
return null;
}
return getConnection().move(key, dbIndex);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().ttl(key)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().ttl(key)));
return null;
}
return getConnection().ttl(key);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().ttl(key), Converters.secondsToTimeUnit(timeUnit)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().ttl(key), Converters.secondsToTimeUnit(timeUnit)));
return null;
}
return Converters.secondsToTimeUnit(getConnection().ttl(key), timeUnit);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().pttl(key)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().pttl(key)));
return null;
}
return getConnection().pttl(key);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(
connection.newLettuceResult(getAsyncConnection().pttl(key), Converters.millisecondsToTimeUnit(timeUnit)));
return null;
}
if (isQueueing()) {
transaction(
connection.newLettuceResult(getAsyncConnection().pttl(key), Converters.millisecondsToTimeUnit(timeUnit)));
return null;
}
return Converters.millisecondsToTimeUnit(getConnection().pttl(key), timeUnit);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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);
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().sort(key, args)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().sort(key, args)));
return null;
}
return getConnection().sort(key, args);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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);
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().sortStore(key, args, sortKey)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().sortStore(key, args, sortKey)));
return null;
}
return getConnection().sortStore(key, args, sortKey);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().dump(key)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().dump(key)));
return null;
}
return getConnection().dump(key);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (replace) {
this.connection.execute("RESTORE", new byte[][] { key, LettuceConverters.toBytes(ttlInMillis), serializedValue,
LettuceConverters.toBytes("REPLACE") });
return;
}
if (isPipelined()) {
pipeline(connection.newLettuceStatusResult(getAsyncConnection().restore(key, ttlInMillis, serializedValue)));
return;
}
if (isQueueing()) {
transaction(connection.newLettuceStatusResult(getAsyncConnection().restore(key, ttlInMillis, serializedValue)));
return;
}
getConnection().restore(key, ttlInMillis, serializedValue);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().objectEncoding(key), ValueEncoding::of,
() -> RedisValueEncoding.VACANT));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().objectEncoding(key), ValueEncoding::of,
() -> RedisValueEncoding.VACANT));
return null;
}
return ValueEncoding.of(getConnection().objectEncoding(key));
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().objectIdletime(key), Converters::secondsToDuration));
return null;
}
if (isQueueing()) {
transaction(
connection.newLettuceResult(getAsyncConnection().objectIdletime(key), Converters::secondsToDuration));
return null;
}
return Converters.secondsToDuration(getConnection().objectIdletime(key));
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
/*
* (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!");
try {
if (isPipelined()) {
pipeline(connection.newLettuceResult(getAsyncConnection().objectRefcount(key)));
return null;
}
if (isQueueing()) {
transaction(connection.newLettuceResult(getAsyncConnection().objectRefcount(key)));
return null;
}
return getConnection().objectRefcount(key);
} catch (Exception ex) {
throw convertLettuceAccessException(ex);
}
}
private boolean isPipelined() {
return connection.isPipelined();
}
private boolean isQueueing() {
return connection.isQueueing();
}
private void pipeline(LettuceResult result) {
connection.pipeline(result);
}
private void transaction(LettuceResult result) {
connection.transaction(result);
}
private RedisClusterAsyncCommands getAsyncConnection() {
return connection.getAsyncConnection();
}
public RedisClusterCommands getConnection() {
return connection.getConnection();
}
private DataAccessException convertLettuceAccessException(Exception ex) {
return connection.convertLettuceAccessException(ex);
}
}
