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use base::{ErrorCode, JobStoppedReason};
use std::io::{Read, Write};
use {
Endian, ErrorCodeReaderExt, ErrorCodeWriterExt, HasFixedCommandId,
JobStoppedReasonReaderExt, JobStoppedReasonWriterExt, MessageExt,
ReadExt, ReadFromPayload, Result, WithFixedPayloadLength, WriteExt,
};
#[derive(Clone, Debug, PartialEq)]
pub struct Notification {
pub reason: JobStoppedReason,
pub error: ErrorCode,
pub last_command_position: u16,
pub last_condition_position: u16,
}
impl From<Notification> for super::Notification {
fn from(m: Notification) -> Self {
super::Notification::JobStopped(m)
}
}
impl WithFixedPayloadLength for Notification {
const FIXED_PAYLOAD_LENGTH: u16 =
JobStoppedReason::FIXED_PAYLOAD_LENGTH
+ ErrorCode::FIXED_PAYLOAD_LENGTH
+ u16::FIXED_PAYLOAD_LENGTH
+ u16::FIXED_PAYLOAD_LENGTH;
}
impl HasFixedCommandId for Notification {
const COMMAND_ID: u16 = 0x8803;
}
impl MessageExt for Notification {
fn payload_length(&self) -> u16 {
Self::FIXED_PAYLOAD_LENGTH
}
fn write_payload(&self, w: &mut Write) -> Result<()> {
w.write_job_stopped_reason(self.reason)?;
w.write_error_code(self.error)?;
w.write_u16::<Endian>(self.last_command_position)?;
w.write_u16::<Endian>(self.last_condition_position)?;
Ok(())
}
}
impl ReadFromPayload for Notification {
fn read_from_payload<R: Read>(
r: &mut R,
payload_length: u16,
) -> Result<Self> {
Self::verify_payload_length(
payload_length,
"job_stopped_notification",
)?;
let reason = r.read_job_stopped_reason()?;
let error = r.read_error_code()?;
let last_command_position = r.read_u16::<Endian>()?;
let last_condition_position = r.read_u16::<Endian>()?;
Ok(Self {
reason,
error,
last_command_position,
last_condition_position,
})
}
}
#[cfg(test)]
mod test_notification {
use super::*;
#[test]
fn write_to() {
let mut buffer = Vec::new();
let options: u8 = 0x45;
let sequence: u8 = 0x93;
let reason = JobStoppedReason::ExitCriterionMatched;
let error = ErrorCode::InvalidState;
let last_command_position = 0x4321;
let last_condition_position = 0x8765;
let message = Notification {
reason,
error,
last_command_position,
last_condition_position,
};
message.write_to(&mut buffer, options, sequence).unwrap();
assert_eq!(
buffer,
[
0x45,
0x93,
0x03,
0x88,
0x07,
0x00,
0x02,
0x07,
0x01,
0x21,
0x43,
0x65,
0x87,
]
);
}
#[test]
fn read_from_payload() {
let buffer = vec![
0x02,
0x07,
0x01,
0x21,
0x43,
0x65,
0x87,
];
let len = buffer.len() as u16;
let message =
Notification::read_from_payload(&mut buffer.as_slice(), len)
.unwrap();
let reason = JobStoppedReason::ExitCriterionMatched;
let error = ErrorCode::InvalidState;
let last_command_position = 0x4321;
let last_condition_position = 0x8765;
assert_eq!(
message,
Notification {
reason,
error,
last_command_position,
last_condition_position,
}
);
}
}