ave_core/model/common/
viewpoints.rs

1use ave_common::{SchemaType, schematype::ReservedWords};
2use std::collections::BTreeSet;
3
4pub fn validate_fact_viewpoints(
5    fact_viewpoints: &BTreeSet<String>,
6    schema_id: &SchemaType,
7    schema_viewpoints: Option<&BTreeSet<String>>,
8) -> Result<(), String> {
9    if schema_id.is_gov() {
10        if !fact_viewpoints.is_empty() {
11            return Err(
12                "governance fact events cannot define viewpoints".to_owned()
13            );
14        }
15
16        return Ok(());
17    }
18
19    let Some(schema_viewpoints) = schema_viewpoints else {
20        return Err(
21            "tracker fact evaluation is missing schema viewpoints".to_owned()
22        );
23    };
24
25    if schema_viewpoints.is_empty() && !fact_viewpoints.is_empty() {
26        return Err(format!("schema {} does not define viewpoints", schema_id));
27    }
28
29    for viewpoint in fact_viewpoints {
30        if viewpoint.trim().len() != viewpoint.len() {
31            return Err(
32                "viewpoints cannot have surrounding whitespace".to_owned()
33            );
34        }
35
36        if viewpoint.is_empty() {
37            return Err("viewpoints cannot be empty".to_owned());
38        }
39
40        if viewpoint == &ReservedWords::AllViewpoints.to_string() {
41            return Err(
42                "AllViewpoints is not valid in fact requests; use an empty viewpoints set to indicate an unsegmented event"
43                    .to_owned(),
44            );
45        }
46
47        if viewpoint.len() > 100 {
48            return Err(
49                "viewpoints cannot be longer than 100 characters".to_owned()
50            );
51        }
52    }
53
54    if fact_viewpoints.is_empty() {
55        return Ok(());
56    }
57
58    for viewpoint in fact_viewpoints {
59        if !schema_viewpoints.contains(viewpoint) {
60            return Err(format!(
61                "viewpoint '{}' is not defined in schema {}",
62                viewpoint, schema_id
63            ));
64        }
65    }
66
67    Ok(())
68}
ave_core/model/common/viewpoints.rs

ave_core/model/common/
viewpoints.rs
