statsig_rust/specs_adapter/
statsig_customized_specs_adapter.rs

1use std::{sync::Arc, time::Duration};
2
3use super::statsig_data_store_specs_adapter::StatsigDataStoreSpecsAdapter;
4use super::StatsigHttpSpecsAdapter;
5use super::{SpecAdapterConfig, SpecsAdapterType};
6use crate::data_store_interface::DataStoreTrait;
7use crate::{log_i, log_w, SpecsAdapter, SpecsUpdateListener, StatsigOptions};
8use crate::{StatsigErr, StatsigRuntime};
9use async_trait::async_trait;
10
11#[cfg(feature = "with_grpc")]
12use super::statsig_grpc_specs_adapter::StatsigGrpcSpecsAdapter;
13
14#[cfg(not(feature = "with_grpc"))]
15use crate::log_e;
16
17const TAG: &str = stringify!(StatsigCustomizedSpecsAdapter);
18
19pub struct StatsigCustomizedSpecsAdapter {
20    adapters: Vec<Arc<dyn SpecsAdapter>>,
21}
22
23impl StatsigCustomizedSpecsAdapter {
24    pub fn new_from_config(
25        sdk_key: &str,
26        data_store_key: &str,
27        configs: Vec<SpecAdapterConfig>,
28        options: &StatsigOptions,
29    ) -> Self {
30        let mut adapters: Vec<Arc<dyn SpecsAdapter>> = Vec::new();
31        for config in &configs {
32            match config.adapter_type {
33                SpecsAdapterType::NetworkGrpcWebsocket => {
34                    if let Some(adapter) = Self::create_grpc_adapter(sdk_key, config, options) {
35                        adapters.push(adapter);
36                    }
37                }
38                SpecsAdapterType::NetworkHttp => {
39                    // Since strategies is an order list, we will just use i
40                    adapters.push(Arc::new(StatsigHttpSpecsAdapter::new(
41                        sdk_key,
42                        Some(options),
43                        config.specs_url.clone(),
44                    )));
45                }
46                SpecsAdapterType::DataStore => match options.data_store.clone() {
47                    Some(data_store) => {
48                        adapters.push(Arc::new(StatsigDataStoreSpecsAdapter::new(
49                            data_store_key,
50                            data_store,
51                            Some(options),
52                        )));
53                    }
54                    None => log_w!(TAG, "Datastore is not present for syncing spec"),
55                },
56            }
57        }
58
59        StatsigCustomizedSpecsAdapter { adapters }
60    }
61
62    pub fn new_from_data_store(
63        sdk_key: &str,
64        data_store_key: &str,
65        data_store: Arc<dyn DataStoreTrait>,
66        options: &StatsigOptions,
67    ) -> Self {
68        let data_store_spec_adapter =
69            StatsigDataStoreSpecsAdapter::new(data_store_key, data_store, Some(options));
70        let http_adapter = StatsigHttpSpecsAdapter::new(sdk_key, Some(options), None);
71        let adapters: Vec<Arc<dyn SpecsAdapter>> =
72            vec![Arc::new(data_store_spec_adapter), Arc::new(http_adapter)];
73        StatsigCustomizedSpecsAdapter { adapters }
74    }
75
76    #[cfg(feature = "with_grpc")]
77    fn create_grpc_adapter(
78        sdk_key: &str,
79        config: &SpecAdapterConfig,
80        options: &StatsigOptions,
81    ) -> Option<Arc<dyn SpecsAdapter>> {
82        Some(Arc::new(StatsigGrpcSpecsAdapter::new(
83            sdk_key,
84            config,
85            Some(options),
86        )))
87    }
88
89    #[cfg(not(feature = "with_grpc"))]
90    fn create_grpc_adapter(
91        _sdk_key: &str,
92        _config: &SpecAdapterConfig,
93        _options: &StatsigOptions,
94    ) -> Option<Arc<dyn SpecsAdapter>> {
95        log_e!(
96            TAG,
97            "Trying to use grpc websocket adapter but with grpc feature is not enabled"
98        );
99        None
100    }
101}
102
103#[async_trait]
104impl SpecsAdapter for StatsigCustomizedSpecsAdapter {
105    async fn start(
106        self: Arc<Self>,
107        statsig_runtime: &Arc<StatsigRuntime>,
108    ) -> Result<(), StatsigErr> {
109        for adapter in &self.adapters {
110            match adapter.to_owned().start(statsig_runtime).await {
111                Ok(()) => {
112                    return Ok(());
113                }
114                Err(e) => {
115                    log_w!(
116                        TAG,
117                        "Failed to initialize from {} adapter: {e}",
118                        adapter.get_type_name(),
119                    );
120                    // Carry on
121                }
122            }
123        }
124        return Err(StatsigErr::UnstartedAdapter(
125            "Failed to start any adapters".to_string(),
126        ));
127    }
128
129    fn initialize(&self, listener: Arc<dyn SpecsUpdateListener>) {
130        for adapter in &self.adapters {
131            adapter.initialize(listener.clone());
132        }
133    }
134
135    async fn schedule_background_sync(
136        self: Arc<Self>,
137        statsig_runtime: &Arc<StatsigRuntime>,
138    ) -> Result<(), StatsigErr> {
139        // TODO: we probably should have another option for config sync sources, but for now, we only have one
140        for adapter in &self.adapters {
141            match adapter
142                .to_owned()
143                .schedule_background_sync(statsig_runtime)
144                .await
145            {
146                Ok(()) => return Ok(()),
147                Err(_) => {
148                    // Carry on and try  next adapter
149                    log_i!(
150                        TAG,
151                        "Skipping schedule bg sync for {}",
152                        adapter.get_type_name()
153                    );
154                }
155            }
156        }
157        Ok(())
158    }
159
160    async fn shutdown(
161        &self,
162        timeout: Duration,
163        statsig_runtime: &Arc<StatsigRuntime>,
164    ) -> Result<(), StatsigErr> {
165        let timeout_for_each = timeout
166            .checked_div(self.adapters.len() as u32)
167            .unwrap_or(timeout);
168        for adapter in &self.adapters {
169            let _ = adapter.shutdown(timeout_for_each, statsig_runtime).await;
170        }
171        Ok(())
172    }
173
174    fn get_type_name(&self) -> String {
175        stringify!(StatsigCustomizedSpecsAdapter).to_string()
176    }
177}
statsig_rust/specs_adapter/statsig_customized_specs_adapter.rs

statsig_rust/specs_adapter/
statsig_customized_specs_adapter.rs
