awaken-server 0.6.0

Multi-protocol HTTP server with SSE, mailbox, and protocol adapters for Awaken
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 std::collections::HashMap;
use std::sync::Arc;

use awaken_runtime::registry::AgentSpecRegistry;
use awaken_server_contract as server_contract;
use server_contract::AgentSpec;

#[derive(Default)]
pub(super) struct DiscoveredAgentRegistry {
    exact: HashMap<String, AgentSpec>,
    plain: HashMap<String, AgentSpec>,
}

impl DiscoveredAgentRegistry {
    pub(super) fn from_registry(
        registry: Arc<dyn AgentSpecRegistry>,
    ) -> Option<Arc<dyn AgentSpecRegistry>> {
        let mut exact = HashMap::new();
        let mut plain = HashMap::new();

        for id in registry.agent_ids() {
            let Some(spec) = registry.get_agent(&id) else {
                continue;
            };
            if spec.endpoint.is_none() && spec.registry.is_none() {
                continue;
            }
            plain.entry(spec.id.clone()).or_insert_with(|| spec.clone());
            exact.insert(id, spec);
        }

        if exact.is_empty() {
            None
        } else {
            Some(Arc::new(Self { exact, plain }) as Arc<dyn AgentSpecRegistry>)
        }
    }

    pub(super) fn from_entries(
        entries: impl IntoIterator<Item = (String, AgentSpec)>,
    ) -> Option<Arc<dyn AgentSpecRegistry>> {
        let mut exact = HashMap::new();
        let mut plain: HashMap<String, AgentSpec> = HashMap::new();

        for (id, spec) in entries {
            if let Some(existing) = plain.get(&spec.id) {
                tracing::warn!(
                    agent_id = %spec.id,
                    existing_registry = ?existing.registry,
                    duplicate_registry = ?spec.registry,
                    namespaced_id = %id,
                    "duplicate discovered A2A agent plain id; first plain lookup wins, use namespaced id to disambiguate"
                );
            } else {
                plain.insert(spec.id.clone(), spec.clone());
            }
            exact.insert(id, spec);
        }

        if exact.is_empty() {
            None
        } else {
            Some(Arc::new(Self { exact, plain }) as Arc<dyn AgentSpecRegistry>)
        }
    }
}

impl AgentSpecRegistry for DiscoveredAgentRegistry {
    fn get_agent(&self, id: &str) -> Option<AgentSpec> {
        self.exact
            .get(id)
            .cloned()
            .or_else(|| self.plain.get(id).cloned())
    }

    fn agent_ids(&self) -> Vec<String> {
        let mut ids: Vec<_> = self.exact.keys().cloned().collect();
        ids.sort();
        ids
    }
}

pub(super) struct AgentSpecRegistryWithDiscovery {
    base: Arc<dyn AgentSpecRegistry>,
    overlay: Arc<dyn AgentSpecRegistry>,
}

impl AgentSpecRegistryWithDiscovery {
    pub(super) fn new(
        base: Arc<dyn AgentSpecRegistry>,
        overlay: Arc<dyn AgentSpecRegistry>,
    ) -> Self {
        Self { base, overlay }
    }
}

impl AgentSpecRegistry for AgentSpecRegistryWithDiscovery {
    fn get_agent(&self, id: &str) -> Option<AgentSpec> {
        self.base
            .get_agent(id)
            .or_else(|| self.overlay.get_agent(id))
    }

    fn agent_ids(&self) -> Vec<String> {
        let mut ids = self.base.agent_ids();
        ids.extend(self.overlay.agent_ids());
        ids.sort();
        ids.dedup();
        ids
    }
}

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

    #[test]
    fn duplicate_plain_agent_id_keeps_namespaced_entries_and_first_plain_lookup() {
        let registry = DiscoveredAgentRegistry::from_entries([
            (
                "first/assistant".to_string(),
                AgentSpec {
                    id: "assistant".to_string(),
                    registry: Some("first".to_string()),
                    ..Default::default()
                },
            ),
            (
                "second/assistant".to_string(),
                AgentSpec {
                    id: "assistant".to_string(),
                    registry: Some("second".to_string()),
                    ..Default::default()
                },
            ),
        ])
        .expect("registry should be built");

        assert_eq!(
            registry
                .get_agent("assistant")
                .and_then(|spec| spec.registry),
            Some("first".to_string())
        );
        assert_eq!(
            registry
                .get_agent("second/assistant")
                .and_then(|spec| spec.registry),
            Some("second".to_string())
        );
        assert_eq!(
            registry.agent_ids(),
            vec![
                "first/assistant".to_string(),
                "second/assistant".to_string()
            ]
        );
    }
}