floria 0.0.5

Floria data system for cloud orchestration
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
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

use super::{
    super::{data::*, store::*},
    edge::*,
    template::*,
    utils::*,
    vertex_selector::*,
};

use {
    depiction::*,
    kutil::std::immutable::*,
    std::{collections::*, io},
};

//
// EdgeTemplate
//

/// Edge template.
#[derive(Clone, Debug)]
pub struct EdgeTemplate {
    /// Template.
    pub template: Template,

    /// Containing source vertex template ID.
    pub containing_source_vertex_template_id: ID,

    /// Target selector.
    /// TODO: required? vertex/capability filter?
    pub target_selector: VertexSelector,
}

impl EdgeTemplate {
    /// Constructor.
    pub fn new<StoreT>(
        directory: Directory,
        containing_source_vertex_template_id: ID,
        target_selector: VertexSelector,
        store: &StoreT,
    ) -> Result<Self, StoreError>
    where
        StoreT: Store,
    {
        let mut id = ID::new(EntityKind::EdgeTemplate, directory);
        store.create_id(&mut id)?;
        Ok(Self::new_with(id, containing_source_vertex_template_id, target_selector))
    }

    /// Constructor.
    pub fn new_for(
        directory: Directory,
        id: ByteString,
        containing_source_vertex_template_id: ID,
        target_selector: VertexSelector,
    ) -> Self {
        Self::new_with(
            ID::new_for(EntityKind::EdgeTemplate, directory, id),
            containing_source_vertex_template_id,
            target_selector,
        )
    }

    /// Constructor.
    pub fn new_with(id: ID, containing_source_vertex_template_id: ID, target_selector: VertexSelector) -> Self {
        Self { template: Template::new(id), containing_source_vertex_template_id, target_selector }
    }

    /// Instantiate.
    pub fn instantiate<StoreT>(
        &self,
        directory: &Directory,
        source_vertex_id: ID,
        target_vertex_id: ID,
        store: &StoreT,
    ) -> Result<ID, StoreError>
    where
        StoreT: Store,
    {
        let edge = Edge {
            instance: self.template.instantiate(EntityKind::Edge, directory, store)?,
            source_vertex_id,
            target_vertex_id,
        };

        let edge_id = edge.instance.id.clone();
        store.add_edge(edge)?;

        Ok(edge_id)
    }

    /// Into expression.
    pub fn into_expression<'own, StoreT>(self, embedded: bool, store: &'own StoreT) -> Result<Expression, StoreError>
    where
        StoreT: Store,
    {
        let mut map = BTreeMap::default();

        self.template.into_expression(&mut map, embedded, store)?;

        map.insert(
            "containing-source-vertex-template-id".into(),
            self.containing_source_vertex_template_id.to_string().into(),
        );

        map.insert("target-selector".into(), self.target_selector.into());

        Ok(map.into())
    }

    /// To [Depict].
    pub fn to_depict<'own, StoreT>(&'own self, store: &'own StoreT) -> DepictEdgeTemplate<'own, StoreT>
    where
        StoreT: Store,
    {
        DepictEdgeTemplate { edge_template: self, store }
    }
}

//
// DepictEdgeTemplate
//

/// Depict edge template.
pub struct DepictEdgeTemplate<'own, StoreT>
where
    StoreT: Store,
{
    edge_template: &'own EdgeTemplate,
    store: &'own StoreT,
}

impl<'own, StoreT> Depict for DepictEdgeTemplate<'own, StoreT>
where
    StoreT: Store,
{
    fn depict<WriteT>(&self, writer: &mut WriteT, context: &DepictionContext) -> io::Result<()>
    where
        WriteT: io::Write,
    {
        let context = &context.child().with_separator(true);

        context.theme.write_heading(writer, "EdgeTemplate")?;
        depict_id("id", Some(&self.edge_template.template.id), false, writer, context)?;
        depict_metadata(&self.edge_template.template.metadata, false, writer, context)?;
        depict_classes(&self.edge_template.template.class_ids, self.store, writer, context)?;
        depict_properties(
            "property_templates",
            &self.edge_template.template.property_templates,
            self.store,
            false,
            writer,
            context,
        )?;

        utils::depict_field("target_selector", true, writer, context, |writer, context| -> io::Result<()> {
            self.edge_template.target_selector.depict(writer, context)
        })
    }
}