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Pure Elixir HL7 v2.x toolkit — schema-driven parsing, typed segments, message builder, MLLP transport
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lib/hl7v2/type/ccp.ex
defmodule HL7v2.Type.CCP do
@moduledoc """
Channel Calibration Parameters (CCP) -- HL7v2 composite data type.
Specifies calibration corrections for a waveform channel. Used in CD
(Channel Definition) component 4.
3 components:
1. Channel Calibration Sensitivity Correction Factor (NM)
2. Channel Calibration Baseline (NM)
3. Channel Calibration Time Skew (NM)
"""
@behaviour HL7v2.Type
alias HL7v2.Type
defstruct [
:channel_calibration_sensitivity_correction_factor,
:channel_calibration_baseline,
:channel_calibration_time_skew
]
@type t :: %__MODULE__{
channel_calibration_sensitivity_correction_factor: binary() | nil,
channel_calibration_baseline: binary() | nil,
channel_calibration_time_skew: binary() | nil
}
@doc """
Parses a CCP from a list of components.
## Examples
iex> HL7v2.Type.CCP.parse(["1.5", "0.0", "0.003"])
%HL7v2.Type.CCP{channel_calibration_sensitivity_correction_factor: "1.5", channel_calibration_baseline: "0.0", channel_calibration_time_skew: "0.003"}
iex> HL7v2.Type.CCP.parse(["1.2"])
%HL7v2.Type.CCP{channel_calibration_sensitivity_correction_factor: "1.2"}
iex> HL7v2.Type.CCP.parse([])
%HL7v2.Type.CCP{}
"""
@spec parse(list()) :: t()
def parse(components) when is_list(components) do
%__MODULE__{
channel_calibration_sensitivity_correction_factor: Type.get_component(components, 0),
channel_calibration_baseline: Type.get_component(components, 1),
channel_calibration_time_skew: Type.get_component(components, 2)
}
end
@doc """
Encodes a CCP to a list of component strings.
## Examples
iex> HL7v2.Type.CCP.encode(%HL7v2.Type.CCP{channel_calibration_sensitivity_correction_factor: "1.5", channel_calibration_baseline: "0.0", channel_calibration_time_skew: "0.003"})
["1.5", "0.0", "0.003"]
iex> HL7v2.Type.CCP.encode(%HL7v2.Type.CCP{channel_calibration_sensitivity_correction_factor: "1.2"})
["1.2"]
iex> HL7v2.Type.CCP.encode(nil)
[]
"""
@spec encode(t() | nil) :: list()
def encode(nil), do: []
def encode(%__MODULE__{} = ccp) do
[
ccp.channel_calibration_sensitivity_correction_factor || "",
ccp.channel_calibration_baseline || "",
ccp.channel_calibration_time_skew || ""
]
|> Type.trim_trailing()
end
end