2019-01-15 22:08:56 +00:00
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#include "RedisDictionarySource.h"
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#include "DictionarySourceFactory.h"
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#include "DictionaryStructure.h"
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int SUPPORT_IS_DISABLED;
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}
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void registerDictionarySourceRedis(DictionarySourceFactory & factory)
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{
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auto createTableSource = [=](const DictionaryStructure & dict_struct,
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const Poco::Util::AbstractConfiguration & config,
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const std::string & config_prefix,
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Block & sample_block,
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const Context & /* context */) -> DictionarySourcePtr {
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#if USE_POCO_REDIS
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2019-03-30 21:42:13 +00:00
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return std::make_unique<RedisDictionarySource>(dict_struct, config, config_prefix + ".redis", sample_block);
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2019-01-15 22:08:56 +00:00
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#else
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2019-03-30 21:42:13 +00:00
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(void)dict_struct;
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2019-01-15 22:08:56 +00:00
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(void)config;
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(void)config_prefix;
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(void)sample_block;
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throw Exception{"Dictionary source of type `redis` is disabled because poco library was built without redis support.",
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ErrorCodes::SUPPORT_IS_DISABLED};
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#endif
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};
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factory.registerSource("redis", createTableSource);
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}
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}
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#if USE_POCO_REDIS
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# include <Poco/Redis/Array.h>
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# include <Poco/Redis/AsyncReader.h>
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# include <Poco/Redis/Client.h>
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# include <Poco/Redis/Command.h>
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# include <Poco/Redis/Error.h>
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# include <Poco/Redis/Exception.h>
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# include <Poco/Redis/RedisEventArgs.h>
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# include <Poco/Redis/RedisStream.h>
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# include <Poco/Redis/Type.h>
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# include <Poco/Util/AbstractConfiguration.h>
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# include <Poco/Version.h>
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# include <IO/WriteHelpers.h>
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# include <Common/FieldVisitors.h>
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# include <ext/enumerate.h>
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# include "RedisBlockInputStream.h"
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2019-04-15 01:34:10 +00:00
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# include "Poco/Logger.h"
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# include "common/logger_useful.h"
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2019-01-15 22:08:56 +00:00
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namespace DB
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{
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namespace ErrorCodes
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{
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extern const int UNSUPPORTED_METHOD;
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2019-04-14 17:50:05 +00:00
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extern const int CANNOT_SELECT;
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2019-04-16 23:13:07 +00:00
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extern const int INVALID_CONFIG_PARAMETER;
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2019-01-15 22:08:56 +00:00
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}
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static const size_t max_block_size = 8192;
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RedisDictionarySource::RedisDictionarySource(
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const DictionaryStructure & dict_struct,
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const std::string & host,
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UInt16 port,
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2019-04-14 17:05:50 +00:00
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UInt8 db_index,
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2019-04-16 23:13:07 +00:00
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RedisStorageType::Id storage_type,
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2019-01-15 22:08:56 +00:00
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const Block & sample_block)
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: dict_struct{dict_struct}
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, host{host}
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, port{port}
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2019-04-14 17:05:50 +00:00
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, db_index{db_index}
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2019-04-16 23:13:07 +00:00
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, storage_type{storage_type}
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2019-01-15 22:08:56 +00:00
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, sample_block{sample_block}
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, client{std::make_shared<Poco::Redis::Client>(host, port)}
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{
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2019-04-16 23:13:07 +00:00
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if (dict_struct.attributes.size() != 1)
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throw Exception{"Invalid number of non key columns for Redis source: " +
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DB::toString(dict_struct.attributes.size()) + ", expected 1",
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ErrorCodes::INVALID_CONFIG_PARAMETER};
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if (storage_type == RedisStorageType::HASH_MAP)
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{
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if (!dict_struct.key.has_value())
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throw Exception{"Redis source with storage type \'hash_map\' mush have key",
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ErrorCodes::INVALID_CONFIG_PARAMETER};
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if (dict_struct.key.value().size() > 2)
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throw Exception{"Redis source with complex keys having more than 2 attributes are unsupported",
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ErrorCodes::INVALID_CONFIG_PARAMETER};
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// suppose key[0] is primary key, key[1] is secondary key
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}
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2019-04-14 17:05:50 +00:00
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if (db_index != 0)
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{
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2019-04-16 23:13:07 +00:00
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Poco::Redis::Command command("SELECT");
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command << static_cast<Int64>(db_index);
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2019-04-14 17:44:44 +00:00
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std::string reply = client->execute<std::string>(command);
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2019-04-14 17:05:50 +00:00
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if (reply != "+OK\r\n")
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throw Exception{"Selecting db with index " + DB::toString(db_index) + " failed with reason " + reply,
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2019-04-14 17:50:05 +00:00
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ErrorCodes::CANNOT_SELECT};
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2019-04-14 17:05:50 +00:00
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}
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2019-01-15 22:08:56 +00:00
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}
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RedisDictionarySource::RedisDictionarySource(
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const DictionaryStructure & dict_struct,
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const Poco::Util::AbstractConfiguration & config,
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const std::string & config_prefix,
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Block & sample_block)
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: RedisDictionarySource(
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dict_struct,
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config.getString(config_prefix + ".host"),
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config.getUInt(config_prefix + ".port"),
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2019-04-14 17:05:50 +00:00
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config.getUInt(config_prefix + ".db_index", 0),
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2019-04-16 23:13:07 +00:00
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parseStorageType(config.getString(config_prefix + ".storage_type", "")),
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2019-01-15 22:08:56 +00:00
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sample_block)
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{
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}
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RedisDictionarySource::RedisDictionarySource(const RedisDictionarySource & other)
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: RedisDictionarySource{other.dict_struct,
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other.host,
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other.port,
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2019-04-14 17:05:50 +00:00
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other.db_index,
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2019-04-16 23:13:07 +00:00
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other.storage_type,
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2019-01-15 22:08:56 +00:00
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other.sample_block}
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{
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}
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RedisDictionarySource::~RedisDictionarySource() = default;
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BlockInputStreamPtr RedisDictionarySource::loadAll()
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{
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2019-04-15 01:34:10 +00:00
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LOG_ERROR(&Logger::get("Redis"), "Redis in loadAll");
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2019-04-16 23:13:07 +00:00
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Poco::Redis::Command command_for_keys("KEYS");
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command_for_keys << "*";
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LOG_ERROR(&Logger::get("Redis"), "Command for keys: " + command_for_keys.toString());
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2019-02-13 00:05:43 +00:00
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2019-04-16 23:13:07 +00:00
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Poco::Redis::Array keys = client->execute<Poco::Redis::Array>(command_for_keys);
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2019-01-27 13:14:02 +00:00
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2019-04-15 01:34:10 +00:00
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LOG_ERROR(&Logger::get("Redis"), "Command for keys executed");
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LOG_ERROR(&Logger::get("Redis"), "KEYS: " + keys.toString());
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2019-04-16 23:13:07 +00:00
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if (storage_type == RedisStorageType::HASH_MAP && dict_struct.key->size() == 2)
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{
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Poco::Redis::Array hkeys;
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for (const auto & key : keys)
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{
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Poco::Redis::Command command_for_secondary_keys("HKEYS");
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command_for_secondary_keys.addRedisType(key);
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Poco::Redis::Array reply_for_primary_key = client->execute<Poco::Redis::Array>(command_for_secondary_keys);
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LOG_ERROR(&Logger::get("Redis"), "Command for hkeys executed");
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Poco::SharedPtr<Poco::Redis::Array> primary_with_secondary;
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primary_with_secondary->addRedisType(key);
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for (const auto & secondary_key : reply_for_primary_key)
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primary_with_secondary->addRedisType(secondary_key);
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LOG_ERROR(&Logger::get("Redis"), "HKEYS: " + primary_with_secondary->toString());
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2019-04-16 23:26:57 +00:00
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hkeys.add(*primary_with_secondary);
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2019-04-16 23:13:07 +00:00
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}
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keys = hkeys;
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}
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2019-01-27 22:22:18 +00:00
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return std::make_shared<RedisBlockInputStream>(client, std::move(keys), sample_block, max_block_size);
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2019-01-15 22:08:56 +00:00
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}
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2019-01-27 13:14:02 +00:00
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BlockInputStreamPtr RedisDictionarySource::loadIds(const std::vector<UInt64> & ids)
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2019-01-15 22:08:56 +00:00
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{
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2019-04-15 01:34:10 +00:00
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LOG_ERROR(&Logger::get("Redis"), "Redis in loadIds");
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2019-04-16 23:13:07 +00:00
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if (storage_type != RedisStorageType::SIMPLE)
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throw Exception{"Cannot use loadIds with \'simple\' storage type", ErrorCodes::UNSUPPORTED_METHOD};
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2019-01-27 13:14:02 +00:00
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if (!dict_struct.id)
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throw Exception{"'id' is required for selective loading", ErrorCodes::UNSUPPORTED_METHOD};
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2019-01-15 22:08:56 +00:00
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2019-01-27 13:14:02 +00:00
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Poco::Redis::Array keys;
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2019-01-15 22:08:56 +00:00
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2019-03-30 21:42:13 +00:00
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for (UInt64 id : ids)
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2019-01-27 13:14:02 +00:00
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keys << static_cast<Int64>(id);
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2019-01-15 22:08:56 +00:00
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2019-04-15 01:34:10 +00:00
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LOG_ERROR(&Logger::get("Redis"), "KEYS: " + keys.toString());
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2019-01-27 22:22:18 +00:00
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return std::make_shared<RedisBlockInputStream>(client, std::move(keys), sample_block, max_block_size);
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2019-01-15 22:08:56 +00:00
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}
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2019-01-27 13:14:02 +00:00
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2019-01-15 22:08:56 +00:00
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std::string RedisDictionarySource::toString() const
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{
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return "Redis: " + host + ':' + DB::toString(port);
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}
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2019-04-17 10:14:07 +00:00
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RedisStorageType::Id RedisDictionarySource::parseStorageType(const std::string & storage_type)
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{
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2019-04-16 23:13:07 +00:00
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RedisStorageType::Id storage_type_id = RedisStorageType::valueOf(storage_type);
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2019-04-17 10:14:07 +00:00
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if (storage_type_id == RedisStorageType::UNKNOWN)
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2019-04-16 23:13:07 +00:00
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storage_type_id = RedisStorageType::SIMPLE;
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return storage_type_id;
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}
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2019-01-15 22:08:56 +00:00
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}
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#endif
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