// Licensed to the Apache Software Foundation (ASF) under one

// or more contributor license agreements.  See the NOTICE file

// distributed with this work for additional information

// regarding copyright ownership.  The ASF licenses this file

// to you 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.

#include "partitioner.h"

#include "common/cast_set.h"

#include "pipeline/local_exchange/local_exchange_sink_operator.h"

#include "runtime/thread_context.h"

#include "vec/columns/column_const.h"

#include "vec/sink/vdata_stream_sender.h"

namespace doris::vectorized {

#include "common/compile_check_begin.h"

template <typename ChannelIds>

Status Crc32HashPartitioner<ChannelIds>::do_partitioning(RuntimeState* state, Block* block) const {

    size_t rows = block->rows();

    if (rows > 0) {

        auto column_to_keep = block->columns();

        int result_size = cast_set<int>(_partition_expr_ctxs.size());

        std::vector<int> result(result_size);

        _hash_vals.resize(rows);

        std::fill(_hash_vals.begin(), _hash_vals.end(), 0);

        auto* __restrict hashes = _hash_vals.data();

        { RETURN_IF_ERROR(_get_partition_column_result(block, result)); }

        for (int j = 0; j < result_size; ++j) {

            _do_hash(unpack_if_const(block->get_by_position(result[j]).column).first, hashes, j);

        }

        for (size_t i = 0; i < rows; i++) {

            hashes[i] = ChannelIds()(hashes[i], _partition_count);

        }

        { Block::erase_useless_column(block, column_to_keep); }

    }

    return Status::OK();

}

Unexecuted instantiation: _ZNK5doris10vectorized20Crc32HashPartitionerINS0_17ShuffleChannelIdsEE15do_partitioningEPNS_12RuntimeStateEPNS0_5BlockE

Unexecuted instantiation: _ZNK5doris10vectorized20Crc32HashPartitionerINS0_24SpillPartitionChannelIdsEE15do_partitioningEPNS_12RuntimeStateEPNS0_5BlockE

template <typename ChannelIds>

void Crc32HashPartitioner<ChannelIds>::_do_hash(const ColumnPtr& column,

                                                uint32_t* __restrict result, int idx) const {

    column->update_crcs_with_value(result, _partition_expr_ctxs[idx]->root()->type().type,

                                   cast_set<uint32_t>(column->size()));

}

Unexecuted instantiation: _ZNK5doris10vectorized20Crc32HashPartitionerINS0_17ShuffleChannelIdsEE8_do_hashERKN3COWINS0_7IColumnEE13immutable_ptrIS5_EEPji

Unexecuted instantiation: _ZNK5doris10vectorized20Crc32HashPartitionerINS0_24SpillPartitionChannelIdsEE8_do_hashERKN3COWINS0_7IColumnEE13immutable_ptrIS5_EEPji

template <typename ChannelIds>

Status Crc32HashPartitioner<ChannelIds>::clone(RuntimeState* state,

                                               std::unique_ptr<PartitionerBase>& partitioner) {

    auto* new_partitioner = new Crc32HashPartitioner<ChannelIds>(cast_set<int>(_partition_count));

    partitioner.reset(new_partitioner);

    new_partitioner->_partition_expr_ctxs.resize(_partition_expr_ctxs.size());

    for (size_t i = 0; i < _partition_expr_ctxs.size(); i++) {

        RETURN_IF_ERROR(

                _partition_expr_ctxs[i]->clone(state, new_partitioner->_partition_expr_ctxs[i]));

    }

    return Status::OK();

}

Unexecuted instantiation: _ZN5doris10vectorized20Crc32HashPartitionerINS0_17ShuffleChannelIdsEE5cloneEPNS_12RuntimeStateERSt10unique_ptrINS0_15PartitionerBaseESt14default_deleteIS7_EE

Unexecuted instantiation: _ZN5doris10vectorized20Crc32HashPartitionerINS0_24SpillPartitionChannelIdsEE5cloneEPNS_12RuntimeStateERSt10unique_ptrINS0_15PartitionerBaseESt14default_deleteIS7_EE

template class Crc32HashPartitioner<ShuffleChannelIds>;

template class Crc32HashPartitioner<SpillPartitionChannelIds>;

} // namespace doris::vectorized