vector/internal_events/
template.rs

1use metrics::counter;
2use vector_lib::internal_event::{
3    ComponentEventsDropped, InternalEvent, UNINTENTIONAL, error_stage, error_type,
4};
5
6pub struct TemplateRenderingError<'a> {
7    pub field: Option<&'a str>,
8    pub drop_event: bool,
9    pub error: crate::template::TemplateRenderingError,
10}
11
12impl InternalEvent for TemplateRenderingError<'_> {
13    fn emit(self) {
14        let mut msg = "Failed to render template".to_owned();
15        if let Some(field) = self.field {
16            use std::fmt::Write;
17            _ = write!(msg, " for \"{field}\"");
18        }
19        msg.push('.');
20
21        if self.drop_event {
22            error!(
23                message = %msg,
24                error = %self.error,
25                error_type = error_type::TEMPLATE_FAILED,
26                stage = error_stage::PROCESSING,
27            );
28
29            counter!(
30                "component_errors_total",
31                "error_type" => error_type::TEMPLATE_FAILED,
32                "stage" => error_stage::PROCESSING,
33            )
34            .increment(1);
35
36            emit!(ComponentEventsDropped::<UNINTENTIONAL> {
37                count: 1,
38                reason: "Failed to render template.",
39            });
40        } else {
41            warn!(
42                message = %msg,
43                error = %self.error,
44                error_type = error_type::TEMPLATE_FAILED,
45                stage = error_stage::PROCESSING,
46            );
47        }
48    }
49}
vector/internal_events/template.rs

vector/internal_events/
template.rs
