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75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#pragma once
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#include <cstdint>
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#include <memory>
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#include "arrow/json/type_fwd.h"
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#include "arrow/util/visibility.h"
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namespace arrow {
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class DataType;
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class Schema;
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namespace json {
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enum class UnexpectedFieldBehavior : char {
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/// Unexpected JSON fields are ignored
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Ignore,
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/// Unexpected JSON fields error out
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Error,
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/// Unexpected JSON fields are type-inferred and included in the output
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InferType
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};
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struct ARROW_EXPORT ParseOptions {
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// Parsing options
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/// Optional explicit schema (disables type inference on those fields)
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std::shared_ptr<Schema> explicit_schema;
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/// Whether objects may be printed across multiple lines (for example pretty-printed)
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///
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/// If true, parsing may be slower.
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bool newlines_in_values = false;
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/// How JSON fields outside of explicit_schema (if given) are treated
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UnexpectedFieldBehavior unexpected_field_behavior = UnexpectedFieldBehavior::InferType;
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/// Create parsing options with default values
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static ParseOptions Defaults();
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};
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struct ARROW_EXPORT ReadOptions {
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// Reader options
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/// Whether to use the global CPU thread pool
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bool use_threads = true;
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/// Block size we request from the IO layer; also determines the size of
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/// chunks when use_threads is true
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int32_t block_size = 1 << 20; // 1 MB
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/// Create read options with default values
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static ReadOptions Defaults();
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};
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} // namespace json
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} // namespace arrow
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