json/json.hpp
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1 /*
2  * SPDX-FileCopyrightText: Copyright (c) 2021-2024, NVIDIA CORPORATION.
3  * SPDX-License-Identifier: Apache-2.0
4  */
5 #pragma once
6 
9 #include <cudf/utilities/export.hpp>
11 
12 namespace CUDF_EXPORT cudf {
13 
24  // allow single quotes to represent strings in JSON
25  bool allow_single_quotes = false;
26 
27  // individual string values are returned with quotes stripped.
28  bool strip_quotes_from_single_strings = true;
29 
30  // Whether to return nulls when an object does not contain the requested field.
31  bool missing_fields_as_nulls = false;
32 
33  public:
37  explicit get_json_object_options() = default;
38 
45  [[nodiscard]] CUDF_HOST_DEVICE inline bool get_allow_single_quotes() const
46  {
47  return allow_single_quotes;
48  }
49 
74  [[nodiscard]] CUDF_HOST_DEVICE inline bool get_strip_quotes_from_single_strings() const
75  {
76  return strip_quotes_from_single_strings;
77  }
78 
100  [[nodiscard]] CUDF_HOST_DEVICE inline bool get_missing_fields_as_nulls() const
101  {
102  return missing_fields_as_nulls;
103  }
104 
110  void set_allow_single_quotes(bool _allow_single_quotes)
111  {
112  allow_single_quotes = _allow_single_quotes;
113  }
114 
120  void set_strip_quotes_from_single_strings(bool _strip_quotes_from_single_strings)
121  {
122  strip_quotes_from_single_strings = _strip_quotes_from_single_strings;
123  }
124 
130  void set_missing_fields_as_nulls(bool _missing_fields_as_nulls)
131  {
132  missing_fields_as_nulls = _missing_fields_as_nulls;
133  }
134 };
135 
154 std::unique_ptr<cudf::column> get_json_object(
155  cudf::strings_column_view const& col,
156  cudf::string_scalar const& json_path,
160  // end of doxygen group
162 } // namespace CUDF_EXPORT cudf
Settings for get_json_object().
Definition: json/json.hpp:23
CUDF_HOST_DEVICE bool get_allow_single_quotes() const
Returns true/false depending on whether single-quotes for representing strings are allowed.
Definition: json/json.hpp:45
void set_strip_quotes_from_single_strings(bool _strip_quotes_from_single_strings)
Set whether individually returned string values have their quotes stripped.
Definition: json/json.hpp:120
void set_allow_single_quotes(bool _allow_single_quotes)
Set whether single-quotes for strings are allowed.
Definition: json/json.hpp:110
get_json_object_options()=default
Default constructor.
void set_missing_fields_as_nulls(bool _missing_fields_as_nulls)
Set whether missing fields are interpreted as null.
Definition: json/json.hpp:130
CUDF_HOST_DEVICE bool get_strip_quotes_from_single_strings() const
Returns true/false depending on whether individually returned string values have their quotes strippe...
Definition: json/json.hpp:74
CUDF_HOST_DEVICE bool get_missing_fields_as_nulls() const
Whether a field not contained by an object is to be interpreted as null.
Definition: json/json.hpp:100
An owning class to represent a string in device memory.
Definition: scalar.hpp:410
Given a column-view of strings type, an instance of this class provides a wrapper on this compound co...
rmm::cuda_stream_view const get_default_stream()
Get the current default stream.
std::unique_ptr< cudf::column > get_json_object(cudf::strings_column_view const &col, cudf::string_scalar const &json_path, get_json_object_options options=get_json_object_options{}, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Apply a JSONPath string to all rows in an input strings column.
rmm::device_async_resource_ref get_current_device_resource_ref()
Get the current device memory resource reference.
detail::cccl_async_resource_ref< cuda::mr::resource_ref< cuda::mr::device_accessible > > device_async_resource_ref
cuDF interfaces
Definition: host_udf.hpp:26
Class definition for cudf::strings_column_view.
#define CUDF_HOST_DEVICE
Indicates that the function or method is usable on host and device.
Definition: types.hpp:21