Convert a list of R objects to a form that is suitable as OpenTelemetry attributes.
Value
A named list that can be used as the attributes argument to
the start_span() method of otel_tracer, the log() method of
otel_logger, etc.
If x is not named, or some names are the empty string or NA, then
integer numbers as used for the missing or invalid names.
If some elements in x are not of the natively supported R types in
OpenTelemetry (character, logical, double, integer), then
their printed form is captured using utils::capture.output().
Limits
The number of attributes can be limited with the OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT environment variable. The default is 128.
The length of the each attribute (vector) can be limited with the
OTEL_ATTRIBUTE_VALUE_LENGTH_LIMIT environment variable. The default is
Inf. Note that this is applied to
the length of each attribute as an R vector. E.g. it does not
currently limit the number of characters in individual strings.
Examples
as_attributes(list(
number = 1.0,
vector = 1:10,
string = "otel",
string_vector = letters,
object = mtcars
))
#> $number
#> [1] 1
#>
#> $vector
#> [1] 1 2 3 4 5 6 7 8 9 10
#>
#> $string
#> [1] "otel"
#>
#> $string_vector
#> [1] "a" "b" "c" "d" "e" "f" "g" "h" "i" "j" "k" "l" "m" "n" "o" "p"
#> [17] "q" "r" "s" "t" "u" "v" "w" "x" "y" "z"
#>
#> $object
#> [1] " mpg cyl disp hp drat wt qsec vs am gear"
#> [2] "Mazda RX4 21.0 6 160.0 110 3.90 2.620 16.46 0 1 4"
#> [3] "Mazda RX4 Wag 21.0 6 160.0 110 3.90 2.875 17.02 0 1 4"
#> [4] "Datsun 710 22.8 4 108.0 93 3.85 2.320 18.61 1 1 4"
#> [5] "Hornet 4 Drive 21.4 6 258.0 110 3.08 3.215 19.44 1 0 3"
#> [6] "Hornet Sportabout 18.7 8 360.0 175 3.15 3.440 17.02 0 0 3"
#> [7] "Valiant 18.1 6 225.0 105 2.76 3.460 20.22 1 0 3"
#> [8] "Duster 360 14.3 8 360.0 245 3.21 3.570 15.84 0 0 3"
#> [9] "Merc 240D 24.4 4 146.7 62 3.69 3.190 20.00 1 0 4"
#> [10] "Merc 230 22.8 4 140.8 95 3.92 3.150 22.90 1 0 4"
#> [11] "Merc 280 19.2 6 167.6 123 3.92 3.440 18.30 1 0 4"
#> [12] "Merc 280C 17.8 6 167.6 123 3.92 3.440 18.90 1 0 4"
#> [13] "Merc 450SE 16.4 8 275.8 180 3.07 4.070 17.40 0 0 3"
#> [14] "Merc 450SL 17.3 8 275.8 180 3.07 3.730 17.60 0 0 3"
#> [15] "Merc 450SLC 15.2 8 275.8 180 3.07 3.780 18.00 0 0 3"
#> [16] "Cadillac Fleetwood 10.4 8 472.0 205 2.93 5.250 17.98 0 0 3"
#> [17] "Lincoln Continental 10.4 8 460.0 215 3.00 5.424 17.82 0 0 3"
#> [18] "Chrysler Imperial 14.7 8 440.0 230 3.23 5.345 17.42 0 0 3"
#> [19] "Fiat 128 32.4 4 78.7 66 4.08 2.200 19.47 1 1 4"
#> [20] "Honda Civic 30.4 4 75.7 52 4.93 1.615 18.52 1 1 4"
#> [21] "Toyota Corolla 33.9 4 71.1 65 4.22 1.835 19.90 1 1 4"
#> [22] "Toyota Corona 21.5 4 120.1 97 3.70 2.465 20.01 1 0 3"
#> [23] "Dodge Challenger 15.5 8 318.0 150 2.76 3.520 16.87 0 0 3"
#> [24] "AMC Javelin 15.2 8 304.0 150 3.15 3.435 17.30 0 0 3"
#> [25] "Camaro Z28 13.3 8 350.0 245 3.73 3.840 15.41 0 0 3"
#> [26] "Pontiac Firebird 19.2 8 400.0 175 3.08 3.845 17.05 0 0 3"
#> [27] "Fiat X1-9 27.3 4 79.0 66 4.08 1.935 18.90 1 1 4"
#> [28] "Porsche 914-2 26.0 4 120.3 91 4.43 2.140 16.70 0 1 5"
#> [29] "Lotus Europa 30.4 4 95.1 113 3.77 1.513 16.90 1 1 5"
#> [30] "Ford Pantera L 15.8 8 351.0 264 4.22 3.170 14.50 0 1 5"
#> [31] "Ferrari Dino 19.7 6 145.0 175 3.62 2.770 15.50 0 1 5"
#> [32] "Maserati Bora 15.0 8 301.0 335 3.54 3.570 14.60 0 1 5"
#> [33] "Volvo 142E 21.4 4 121.0 109 4.11 2.780 18.60 1 1 4"
#> [34] " carb"
#> [35] "Mazda RX4 4"
#> [36] "Mazda RX4 Wag 4"
#> [37] "Datsun 710 1"
#> [38] "Hornet 4 Drive 1"
#> [39] "Hornet Sportabout 2"
#> [40] "Valiant 1"
#> [41] "Duster 360 4"
#> [42] "Merc 240D 2"
#> [43] "Merc 230 2"
#> [44] "Merc 280 4"
#> [45] "Merc 280C 4"
#> [46] "Merc 450SE 3"
#> [47] "Merc 450SL 3"
#> [48] "Merc 450SLC 3"
#> [49] "Cadillac Fleetwood 4"
#> [50] "Lincoln Continental 4"
#> [51] "Chrysler Imperial 4"
#> [52] "Fiat 128 1"
#> [53] "Honda Civic 2"
#> [54] "Toyota Corolla 1"
#> [55] "Toyota Corona 1"
#> [56] "Dodge Challenger 2"
#> [57] "AMC Javelin 2"
#> [58] "Camaro Z28 4"
#> [59] "Pontiac Firebird 2"
#> [60] "Fiat X1-9 1"
#> [61] "Porsche 914-2 2"
#> [62] "Lotus Europa 2"
#> [63] "Ford Pantera L 4"
#> [64] "Ferrari Dino 6"
#> [65] "Maserati Bora 8"
#> [66] "Volvo 142E 2"
#>