/usr/include/dballe/record.h is in libdballe-dev 7.21-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 | #ifndef DBALLE_RECORD_H
#define DBALLE_RECORD_H
#include <wreport/var.h>
#include <dballe/types.h>
#include <memory>
namespace dballe {
/**
* Key/value store where keys are strings and values are wreport variables.
*
* Keys are defined from a known vocabulary, where each key has an associated
* wreport::Varinfo structure.
*/
struct Record
{
virtual ~Record() {}
/// Return a copy of this record
virtual std::unique_ptr<Record> clone() const = 0;
/// Create a new Record
static std::unique_ptr<Record> create();
/// Remove all contents from the record
virtual void clear() = 0;
/// Remove all Bxxyyy keys from the record, leaving the rest intact
virtual void clear_vars() = 0;
/**
* Set a key to an integer value.
*
* If the key that is being set has a decimal component (like lat and lon),
* the integer value represents the units of maximum precision of the
* field. For example, using seti to set lat to 4500000 is the same as
* setting it to 45.0.
*/
virtual void seti(const char* key, int val) = 0;
/**
* Set a key to a double value.
*/
virtual void setd(const char* key, double val) = 0;
/**
* Set a key to a string value.
*
* If the key that is being set has a decimal component (like lat and lon),
* the string is converted to an integer value representing the units of
* maximum precision of the field. For example, using seti to set lat to
* "4500000" is the same as setting it to 45.0.
*/
virtual void setc(const char* key, const char* val) = 0;
/**
* Set a key to a string value.
*
* If the key that is being set has a decimal component (like lat and lon),
* the string is converted to an integer value representing the units of
* maximum precision of the field. For example, using seti to set lat to
* "4500000" is the same as setting it to 45.0.
*/
virtual void sets(const char* key, const std::string& val) = 0;
/**
* Set a key to a string value.
*
* Contrarily to setc, the string is parsed according to the natural
* representation for the given key. For example, if lat is set to "45",
* then it gets the value 45.0.
*
* Also, if a Decimal or Integer value is assigned "-", it is unset
* instead.
*/
virtual void setf(const char* key, const char* val) = 0;
/// Set year, month, day, hour, min, sec
virtual void set_datetime(const Datetime& dt) = 0;
/// Set lat, lon
virtual void set_coords(const Coords& c) = 0;
/// Set latmin, latmax
virtual void set_latrange(const LatRange& lr) = 0;
/// Set lonmin, lonmax
virtual void set_lonrange(const LonRange& lr) = 0;
/// Set datetime-min and datetime-max values
virtual void set_datetimerange(const DatetimeRange& lr) = 0;
/// Set leveltype1, l1, leveltype2, l2
virtual void set_level(const Level& lev) = 0;
/// Set pindicator, p1, p2
virtual void set_trange(const Trange& tr) = 0;
/// Set var.code() == var.value()
virtual void set_var(const wreport::Var& var) = 0;
/// Set var.code() == var
virtual void set_var_acquire(std::unique_ptr<wreport::Var>&& var) = 0;
void set(const char* key, int val) { seti(key, val); }
void set(const char* key, double val) { setd(key, val); }
void set(const char* key, const char* val) { setc(key, val); }
void set(const char* key, const std::string& val) { sets(key, val); }
void set(const Datetime& dt) { set_datetime(dt); }
void set(const DatetimeRange& dt) { set_datetimerange(dt); }
void set(const Coords& c) { set_coords(c); }
void set(const LatRange& lr) { set_latrange(lr); }
void set(const LonRange& lr) { set_lonrange(lr); }
void set(const Level& lev) { set_level(lev); }
void set(const Trange& tr) { set_trange(tr); }
void set(const wreport::Var& var) { set_var(var); }
void set(std::unique_ptr<wreport::Var>&& var) { set_var_acquire(std::move(var)); }
/// Remove/unset a key from the record
virtual void unset(const char* key) = 0;
/// Get a value, if set, or nullptr if not
virtual const wreport::Var* get(const char* key) const = 0;
/// Check if a value is set
virtual bool isset(const char* key) const;
/// Check if two records are the same
virtual bool equals(const Record& rec) const = 0;
/// Check if two records are the same
bool operator==(const Record& rec) const;
/// Check if two records differ
bool operator!=(const Record& rec) const;
/// Get a value, if set, or throw an exception if not
const wreport::Var& operator[](const char* key) const;
const char* enq(const char* key, const char* def) const
{
if (const wreport::Var* var = get(key))
return var->enq(def);
return def;
}
template<typename T>
T enq(const char* key, const T& def) const
{
if (const wreport::Var* var = get(key))
return var->enq(def);
return def;
}
/**
* Copy all data from the record source into dest. At the end of the function,
* dest will contain its previous values, plus the values in source. If a
* value is present both in source and in dest, the one in dest will be
* overwritten.
*
* @param source
* The record to copy data from.
*/
virtual void add(const Record& source) = 0;
/**
* Return true if all elements of \a subset are present in this record,
* with the same value
*/
virtual bool contains(const Record& subset) const = 0;
/**
* Generate a sequence of key names and const Var& for all the
* contents of the record
*/
void foreach_key(std::function<void(const char*, const wreport::Var&)> dest) const { foreach_key_ref(dest); }
/**
* Generate a sequence of key names and unique_ptr<Var> for all the
* contents of the record
*/
void foreach_key(std::function<void(const char*, std::unique_ptr<wreport::Var>&&)> dest) const { foreach_key_copy(dest); }
/// Print the contents of this record to the given stream
virtual void print(FILE* out) const = 0;
/**
* Return informations about a key
*
* @return
* The wreport::Varinfo structure corresponding to the key
*/
static wreport::Varinfo key_info(const char* key);
/**
* Return informations about a key
*
* @return
* The wreport::Varinfo structure corresponding to the key
*/
static wreport::Varinfo key_info(const std::string& key);
protected:
virtual void foreach_key_ref(std::function<void(const char*, const wreport::Var&)> dest) const = 0;
virtual void foreach_key_copy(std::function<void(const char*, std::unique_ptr<wreport::Var>&&)> dest) const = 0;
};
}
#endif
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