routee-compass-core 0.18.0

The core routing algorithms and data structures of the RouteE-Compass energy-aware routing engine
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

use std::sync::Arc;

use crate::model::{
    label::{Label, LabelModel, LabelModelBuilder, LabelModelError, LabelModelService},
    network::VertexId,
    state::{StateModel, StateVariable},
};

pub struct VertexLabelModel;

impl LabelModel for VertexLabelModel {
    fn label_from_state(
        &self,
        vertex_id: VertexId,
        _state: &[StateVariable],
        _state_model: &StateModel,
    ) -> Result<Label, LabelModelError> {
        Ok(Label::Vertex(vertex_id))
    }

    /// a vertex label always dominates over any previous label since it holds no
    /// additional state to compare.
    fn compare(
        &self,
        _prev_label: &Label,
        _next_label: &Label,
    ) -> Result<std::cmp::Ordering, LabelModelError> {
        Ok(std::cmp::Ordering::Greater)
    }
}

pub struct VertexLabelModelService;

impl LabelModelService for VertexLabelModelService {
    fn build(
        &self,
        _query: &serde_json::Value,
        _state_model: Arc<StateModel>,
    ) -> Result<Arc<dyn LabelModel>, LabelModelError> {
        Ok(Arc::new(VertexLabelModel))
    }
}

pub struct VertexLabelModelBuilder;

impl LabelModelBuilder for VertexLabelModelBuilder {
    fn build(
        &self,
        _parameters: &serde_json::Value,
    ) -> Result<Arc<dyn LabelModelService>, LabelModelError> {
        Ok(Arc::new(VertexLabelModelService))
    }
}