1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161

use vector_lib::config::LogNamespace;
use vector_lib::configurable::configurable_component;

pub(crate) use crate::schema::Definition;

/// Schema options.
#[configurable_component]
#[derive(Clone, Copy, Debug, Eq, PartialEq)]
#[serde(default, deny_unknown_fields)]
pub struct Options {
    /// Whether or not schema is enabled.
    #[serde(default = "default_enabled")]
    pub enabled: bool,

    /// Whether or not schema validation is enabled.
    #[serde(default = "default_validation")]
    pub validation: bool,

    /// Whether or not to enable log namespacing.
    pub log_namespace: Option<bool>,
}

impl Options {
    /// Gets the value of the globally configured log namespace, or the default if it wasn't set.
    pub fn log_namespace(self) -> LogNamespace {
        self.log_namespace
            .map_or(LogNamespace::Legacy, |use_vector_namespace| {
                use_vector_namespace.into()
            })
    }

    /// Merges two schema options together.
    pub fn append(&mut self, with: Self, errors: &mut Vec<String>) {
        if self.log_namespace.is_some()
            && with.log_namespace.is_some()
            && self.log_namespace != with.log_namespace
        {
            errors.push(
                format!("conflicting values for 'log_namespace' found. Both {:?} and {:?} used in the same component",
                        self.log_namespace(), with.log_namespace())
            );
        }
        if let Some(log_namespace) = with.log_namespace {
            self.log_namespace = Some(log_namespace);
        }

        // If either config enables these flags, it is enabled.
        self.enabled |= with.enabled;
        self.validation |= with.validation;
    }
}

impl Default for Options {
    fn default() -> Self {
        Self {
            enabled: default_enabled(),
            validation: default_validation(),
            log_namespace: None,
        }
    }
}

const fn default_enabled() -> bool {
    false
}

const fn default_validation() -> bool {
    false
}

#[cfg(test)]
mod test {
    use super::*;

    #[test]
    fn test_append() {
        for (test, mut a, b, expected) in [
            (
                "enable log namespacing",
                Options {
                    enabled: false,
                    validation: false,
                    log_namespace: None,
                },
                Options {
                    enabled: false,
                    validation: false,
                    log_namespace: Some(true),
                },
                Some(Options {
                    enabled: false,
                    validation: false,
                    log_namespace: Some(true),
                }),
            ),
            (
                "log namespace conflict",
                Options {
                    enabled: false,
                    validation: false,
                    log_namespace: Some(false),
                },
                Options {
                    enabled: false,
                    validation: false,
                    log_namespace: Some(true),
                },
                None,
            ),
            (
                "enable schemas",
                Options {
                    enabled: false,
                    validation: false,
                    log_namespace: None,
                },
                Options {
                    enabled: true,
                    validation: false,
                    log_namespace: None,
                },
                Some(Options {
                    enabled: true,
                    validation: false,
                    log_namespace: None,
                }),
            ),
            (
                "enable sink requirements",
                Options {
                    enabled: false,
                    validation: false,
                    log_namespace: None,
                },
                Options {
                    enabled: false,
                    validation: true,
                    log_namespace: None,
                },
                Some(Options {
                    enabled: false,
                    validation: true,
                    log_namespace: None,
                }),
            ),
        ] {
            let mut errors = vec![];
            a.append(b, &mut errors);
            if errors.is_empty() {
                assert_eq!(Some(a), expected, "result mismatch: {}", test);
            } else {
                assert_eq!(
                    errors.is_empty(),
                    expected.is_some(),
                    "error mismatch: {}",
                    test
                );
            }
        }
    }
}