harmos-runtime 0.1.6

Harmos runtime: managed state, undo, recovery, background work and typed streams.
Documentation 
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

/* ***
 *
 * Harmos
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * ***
 */

/* === Modules === */

/* === Re-Exports === */

/* === Imports === */

// Standard Library Imports
use std::collections::BTreeSet;
// Third Party Imports

// Local Imports
use super::{PluginDefinition, PluginFailure, PluginGraph};
use crate::Result;

/* === Constants === */

/* === Macros === */

/* === Type Aliases === */

/* === Structs === */

#[derive(Clone, Debug, PartialEq, Eq)]
pub struct PluginDefinitions {
    pub(super) graph: PluginGraph,
    pub(super) rebuilt: BTreeSet<String>,
}

/* === Enums === */

/* === Traits === */

/* === Implementations === */

impl PluginDefinitions {
    pub fn new(definitions: impl IntoIterator<Item = PluginDefinition>, rebuilt: impl IntoIterator<Item = String>) -> Result<Self> {
        Self::new_with_providers(definitions, rebuilt, [])
    }

    pub fn new_with_providers(
        definitions: impl IntoIterator<Item = PluginDefinition>, rebuilt: impl IntoIterator<Item = String>,
        providers: impl IntoIterator<Item = super::OperationProvider>,
    ) -> Result<Self> {
        let graph = PluginGraph::resolve_with_providers(definitions, providers).map_err(PluginFailure::Plan)?;
        let rebuilt: BTreeSet<_> = rebuilt.into_iter().collect();
        for id in &rebuilt {
            if !graph.ordered().iter().any(|definition| definition.id == *id) {
                return Err(PluginFailure::Plan(super::Error::Unknown { id: id.clone() }).into());
            }
        }

        Ok(Self { graph, rebuilt })
    }

    pub fn graph(&self) -> &PluginGraph {
        &self.graph
    }

    pub fn definitions(&self) -> impl Iterator<Item = &PluginDefinition> {
        self.graph.ordered().iter()
    }

    pub fn host_requirements(&self) -> impl Iterator<Item = (&PluginDefinition, &harmos_domain::inventory::contracts::Required)> {
        self.definitions().flat_map(move |definition| {
            let selected = self.graph.required_providers(&definition.id);
            definition
                .contributions
                .required_contracts
                .iter()
                .flatten()
                .filter(move |required| !selected.contains_key(&required.contract.operation().id))
                .map(move |required| (definition, required))
        })
    }
}

/* === Public Functions === */

/* === Private Functions === */

/* === Tests === */