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#ifndef MYSQL_JSON_INCLUDED
#define MYSQL_JSON_INCLUDED
#include "my_global.h"
#include "field.h"
#include "my_global.h"
#include "sql_string.h" // String
#include "mysql_com.h"
#include "mysqld_error.h"
#define JSONB_TYPE_SMALL_OBJECT 0x0
#define JSONB_TYPE_LARGE_OBJECT 0x1
#define JSONB_TYPE_SMALL_ARRAY 0x2
#define JSONB_TYPE_LARGE_ARRAY 0x3
#define JSONB_TYPE_LITERAL 0x4
#define JSONB_TYPE_INT16 0x5
#define JSONB_TYPE_UINT16 0x6
#define JSONB_TYPE_INT32 0x7
#define JSONB_TYPE_UINT32 0x8
#define JSONB_TYPE_INT64 0x9
#define JSONB_TYPE_UINT64 0xA
#define JSONB_TYPE_DOUBLE 0xB
#define JSONB_TYPE_STRING 0xC
#define JSONB_TYPE_OPAQUE 0xF
#define JSONB_NULL_LITERAL '\x00'
#define JSONB_TRUE_LITERAL '\x01'
#define JSONB_FALSE_LITERAL '\x02'
/*
The size of offset or size fields in the small and the large storage
format for JSON objects and JSON arrays.
*/
#define SMALL_OFFSET_SIZE 2
#define LARGE_OFFSET_SIZE 4
/*
The size of key entries for objects when using the small storage
format or the large storage format. In the small format it is 4
bytes (2 bytes for key length and 2 bytes for key offset). In the
large format it is 6 (2 bytes for length, 4 bytes for offset).
*/
#define KEY_ENTRY_SIZE_SMALL (2 + SMALL_OFFSET_SIZE)
#define KEY_ENTRY_SIZE_LARGE (2 + LARGE_OFFSET_SIZE)
/*
The size of value entries for objects or arrays. When using the
small storage format, the entry size is 3 (1 byte for type, 2 bytes
for offset). When using the large storage format, it is 5 (1 byte
for type, 4 bytes for offset).
*/
#define VALUE_ENTRY_SIZE_SMALL (1 + SMALL_OFFSET_SIZE)
#define VALUE_ENTRY_SIZE_LARGE (1 + LARGE_OFFSET_SIZE)
/// The maximum number of nesting levels allowed in a JSON document.
#define JSON_DOCUMENT_MAX_DEPTH 100
/*
Json values in MySQL comprises the stand set of JSON values plus a
MySQL specific set. A Json _number_ type is subdivided into _int_,
_uint_, _double_ and _decimal_.
MySQL also adds four built-in date/time values: _date_, _time_,
_datetime_ and _timestamp_. An additional _opaque_ value can
store any other MySQL type.
The enumeration is common to Json_dom and Json_wrapper.
The enumeration is also used by Json_wrapper::compare() to
determine the ordering when comparing values of different types,
so the order in which the values are defined in the enumeration,
is significant. The expected order is null < number < string <
object < array < boolean < date < time < datetime/timestamp <
opaque.
enum enum_json_type {
J_NULL,
J_DECIMAL,
J_INT,
J_UINT,
J_DOUBLE,
J_STRING,
J_OBJECT,
J_ARRAY,
J_BOOLEAN,
J_DATE,
J_TIME,
J_DATETIME,
J_TIMESTAMP,
J_OPAQUE,
J_ERROR
};
*/
/**
Json values in MySQL comprises the stand set of JSON values plus a
MySQL specific set. A Json _number_ type is subdivided into _int_,
_uint_, _double_ and _decimal_.
MySQL also adds four built-in date/time values: _date_, _time_,
_datetime_ and _timestamp_. An additional _opaque_ value can
store any other MySQL type.
The enumeration is common to Json_dom and Json_wrapper.
The enumeration is also used by Json_wrapper::compare() to
determine the ordering when comparing values of different types,
so the order in which the values are defined in the enumeration,
is significant. The expected order is null < number < string <
object < array < boolean < date < time < datetime/timestamp <
opaque.}
*/
enum enum_json_type {
J_NULL,
J_DECIMAL,
J_INT,
J_UINT,
J_DOUBLE,
J_STRING,
J_OBJECT,
J_ARRAY,
J_BOOLEAN,
J_DATE,
J_TIME,
J_DATETIME,
J_TIMESTAMP,
J_OPAQUE,
J_ERROR
};
/*
Extended type ids so that JSON_TYPE() can give useful type
names to certain sub-types of J_OPAQUE.
*/
enum enum_json_opaque_type {
J_OPAQUE_BLOB,
J_OPAQUE_BIT,
J_OPAQUE_GEOMETRY
};
size_t read_offset_or_size(const char *, bool);
bool get_mysql_string(String *buffer, size_t type, const char *data, size_t len,
bool large);
bool parse_value(String *buffer, size_t type, const char *data, size_t len,
bool large, size_t depth);
bool parse_array_or_object(String * buffer, Field_mysql_json::enum_type,
const char *, size_t, bool);
bool parse_mysql_scalar(String* buffer, size_t type,
const char *data, size_t len, bool large, size_t depth);
#endif /* MYSQL_JSON_INCLUDED */
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