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// 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 "arrow/array/builder_binary.h"
#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <cstring>
#include <numeric>
#include <string>
#include <utility>
#include <vector>
#include "arrow/array.h"
#include "arrow/buffer.h"
#include "arrow/status.h"
#include "arrow/type.h"
#include "arrow/type_traits.h"
#include "arrow/util/bit_util.h"
#include "arrow/util/checked_cast.h"
#include "arrow/util/decimal.h"
#include "arrow/util/logging.h"
namespace arrow {
using internal::checked_cast;
// ----------------------------------------------------------------------
// Fixed width binary
FixedSizeBinaryBuilder::FixedSizeBinaryBuilder(const std::shared_ptr<DataType>& type,
MemoryPool* pool)
: ArrayBuilder(pool),
byte_width_(checked_cast<const FixedSizeBinaryType&>(*type).byte_width()),
byte_builder_(pool) {}
void FixedSizeBinaryBuilder::CheckValueSize(int64_t size) {
DCHECK_EQ(size, byte_width_) << "Appending wrong size to FixedSizeBinaryBuilder";
}
Status FixedSizeBinaryBuilder::AppendValues(const uint8_t* data, int64_t length,
const uint8_t* valid_bytes) {
RETURN_NOT_OK(Reserve(length));
UnsafeAppendToBitmap(valid_bytes, length);
return byte_builder_.Append(data, length * byte_width_);
}
Status FixedSizeBinaryBuilder::AppendNull() {
RETURN_NOT_OK(Reserve(1));
UnsafeAppendNull();
return Status::OK();
}
Status FixedSizeBinaryBuilder::AppendNulls(int64_t length) {
RETURN_NOT_OK(Reserve(length));
UnsafeAppendToBitmap(length, false);
byte_builder_.UnsafeAppend(/*num_copies=*/length * byte_width_, 0);
return Status::OK();
}
Status FixedSizeBinaryBuilder::AppendEmptyValue() {
RETURN_NOT_OK(Reserve(1));
UnsafeAppendToBitmap(true);
byte_builder_.UnsafeAppend(/*num_copies=*/byte_width_, 0);
return Status::OK();
}
Status FixedSizeBinaryBuilder::AppendEmptyValues(int64_t length) {
RETURN_NOT_OK(Reserve(length));
UnsafeAppendToBitmap(length, true);
byte_builder_.UnsafeAppend(/*num_copies=*/length * byte_width_, 0);
return Status::OK();
}
void FixedSizeBinaryBuilder::Reset() {
ArrayBuilder::Reset();
byte_builder_.Reset();
}
Status FixedSizeBinaryBuilder::Resize(int64_t capacity) {
RETURN_NOT_OK(CheckCapacity(capacity));
RETURN_NOT_OK(byte_builder_.Resize(capacity * byte_width_));
return ArrayBuilder::Resize(capacity);
}
Status FixedSizeBinaryBuilder::FinishInternal(std::shared_ptr<ArrayData>* out) {
std::shared_ptr<Buffer> data;
RETURN_NOT_OK(byte_builder_.Finish(&data));
std::shared_ptr<Buffer> null_bitmap;
RETURN_NOT_OK(null_bitmap_builder_.Finish(&null_bitmap));
*out = ArrayData::Make(type(), length_, {null_bitmap, data}, null_count_);
capacity_ = length_ = null_count_ = 0;
return Status::OK();
}
const uint8_t* FixedSizeBinaryBuilder::GetValue(int64_t i) const {
const uint8_t* data_ptr = byte_builder_.data();
return data_ptr + i * byte_width_;
}
util::string_view FixedSizeBinaryBuilder::GetView(int64_t i) const {
const uint8_t* data_ptr = byte_builder_.data();
return util::string_view(reinterpret_cast<const char*>(data_ptr + i * byte_width_),
byte_width_);
}
// ----------------------------------------------------------------------
// ChunkedArray builders
namespace internal {
ChunkedBinaryBuilder::ChunkedBinaryBuilder(int32_t max_chunk_value_length,
MemoryPool* pool)
: max_chunk_value_length_(max_chunk_value_length), builder_(new BinaryBuilder(pool)) {
DCHECK_LE(max_chunk_value_length, kBinaryMemoryLimit);
}
ChunkedBinaryBuilder::ChunkedBinaryBuilder(int32_t max_chunk_value_length,
int32_t max_chunk_length, MemoryPool* pool)
: ChunkedBinaryBuilder(max_chunk_value_length, pool) {
max_chunk_length_ = max_chunk_length;
}
Status ChunkedBinaryBuilder::Finish(ArrayVector* out) {
if (builder_->length() > 0 || chunks_.size() == 0) {
std::shared_ptr<Array> chunk;
RETURN_NOT_OK(builder_->Finish(&chunk));
chunks_.emplace_back(std::move(chunk));
}
*out = std::move(chunks_);
return Status::OK();
}
Status ChunkedBinaryBuilder::NextChunk() {
std::shared_ptr<Array> chunk;
RETURN_NOT_OK(builder_->Finish(&chunk));
chunks_.emplace_back(std::move(chunk));
if (auto capacity = extra_capacity_) {
extra_capacity_ = 0;
return Reserve(capacity);
}
return Status::OK();
}
Status ChunkedStringBuilder::Finish(ArrayVector* out) {
RETURN_NOT_OK(ChunkedBinaryBuilder::Finish(out));
// Change data type to string/utf8
for (size_t i = 0; i < out->size(); ++i) {
std::shared_ptr<ArrayData> data = (*out)[i]->data();
data->type = ::arrow::utf8();
(*out)[i] = std::make_shared<StringArray>(data);
}
return Status::OK();
}
Status ChunkedBinaryBuilder::Reserve(int64_t values) {
if (ARROW_PREDICT_FALSE(extra_capacity_ != 0)) {
extra_capacity_ += values;
return Status::OK();
}
auto current_capacity = builder_->capacity();
auto min_capacity = builder_->length() + values;
if (current_capacity >= min_capacity) {
return Status::OK();
}
auto new_capacity = BufferBuilder::GrowByFactor(current_capacity, min_capacity);
if (ARROW_PREDICT_TRUE(new_capacity <= max_chunk_length_)) {
return builder_->Resize(new_capacity);
}
extra_capacity_ = new_capacity - max_chunk_length_;
return builder_->Resize(max_chunk_length_);
}
} // namespace internal
} // namespace arrow
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