DX improvements

src/cli/main.rs

@@ -543,7 +543,7 @@ fn main() {
                     }
                     let now = Utc::now().naive_utc();
                     (now - item.ts_start)
-                        > match item.data_type.as_str() == "rib" {
+                        > match item.is_rib() {
                             true => Duration::hours(24),
                             false => Duration::hours(1),
                         }

src/item.rs

@@ -0,0 +1,163 @@
+//! BrokerItem module define the broker search results
+use serde::{Deserialize, Serialize};
+use std::cmp::Ordering;
+use std::fmt::{Display, Formatter};
+
+/// BGPKIT Broker data item.
+///
+/// The fields are:
+/// - [ts_start][BrokerItem::ts_start]: the starting timestamp of the data file
+/// - [ts_end][BrokerItem::ts_end]: the ending timestamp of the data file
+/// - [collector_id][BrokerItem::collector_id]: the collector id of the item: e.g. `rrc00`
+/// - [data_type][BrokerItem::data_type]: type of the data item: `rib` or `updates`
+/// - [url][BrokerItem::url]: the URL to the data item file
+/// - [rough_size][BrokerItem::rough_size]: rough file size extracted from the collector webpage
+/// - [exact_size][BrokerItem::exact_size]: exact file size extracted by crawling the file
+///
+/// An array of [BrokerItem]s can be sorted with the following order:
+/// 1. smaller timestamp before larger timestamp
+/// 2. RIB before updates
+/// 3. then alphabetical order on collector ID (route-views before rrc)
+#[derive(Debug, Clone, Serialize, Deserialize, Eq, PartialEq, Hash)]
+#[cfg_attr(feature = "cli", derive(tabled::Tabled, utoipa::ToSchema))]
+pub struct BrokerItem {
+    /// start timestamp
+    pub ts_start: chrono::NaiveDateTime,
+    /// end timestamps
+    pub ts_end: chrono::NaiveDateTime,
+    /// the collector id of the item: e.g. `rrc00`
+    pub collector_id: String,
+    /// type of the data item: `rib` or `updates`
+    pub data_type: String,
+    /// the URL to the data item file
+    pub url: String,
+    /// rough file size extracted from the hosting site page
+    pub rough_size: i64,
+    /// exact file size extracted by crawling the file
+    pub exact_size: i64,
+}
+
+impl BrokerItem {
+    /// Checks if the data type is "rib" (i.e. RIB dump).
+    ///
+    /// # Return
+    /// Returns `true` if the data type is "rib", otherwise `false`.
+    pub fn is_rib(&self) -> bool {
+        self.data_type.as_str() == "rib"
+    }
+}
+
+impl Display for BrokerItem {
+    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", serde_json::to_string(self).unwrap())
+    }
+}
+
+impl PartialOrd for BrokerItem {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        Some(self.cmp(other))
+    }
+}
+
+impl Ord for BrokerItem {
+    fn cmp(&self, other: &Self) -> Ordering {
+        // compare BrokerItems with the following sequence
+        // 1. ts_start
+        // 2. data_type
+        // 3. collector_id
+        self.ts_start
+            .cmp(&other.ts_start) // smaller timestamp comes earlier
+            .then(self.data_type.cmp(&other.data_type)) // RIB before updates on the same timestamp
+            .then(self.collector_id.cmp(&other.collector_id)) // route-viewsX before rrcX
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use chrono::NaiveDateTime;
+
+    #[test]
+    fn test_sorting() {
+        let mut items = vec![
+            BrokerItem {
+                ts_start: NaiveDateTime::from_timestamp_opt(10, 0).unwrap(),
+                ts_end: Default::default(),
+                collector_id: "rrc00".to_string(),
+                data_type: "updates".to_string(),
+                url: "".to_string(),
+                rough_size: 0,
+                exact_size: 0,
+            },
+            BrokerItem {
+                ts_start: NaiveDateTime::from_timestamp_opt(9, 0).unwrap(),
+                ts_end: Default::default(),
+                collector_id: "rrc00".to_string(),
+                data_type: "updates".to_string(),
+                url: "".to_string(),
+                rough_size: 0,
+                exact_size: 0,
+            },
+            BrokerItem {
+                ts_start: NaiveDateTime::from_timestamp_opt(10, 0).unwrap(),
+                ts_end: Default::default(),
+                collector_id: "rrc00".to_string(),
+                data_type: "rib".to_string(),
+                url: "".to_string(),
+                rough_size: 0,
+                exact_size: 0,
+            },
+            BrokerItem {
+                ts_start: NaiveDateTime::from_timestamp_opt(10, 0).unwrap(),
+                ts_end: Default::default(),
+                collector_id: "route-views2".to_string(),
+                data_type: "rib".to_string(),
+                url: "".to_string(),
+                rough_size: 0,
+                exact_size: 0,
+            },
+        ];
+        let correct_items = vec![
+            BrokerItem {
+                ts_start: NaiveDateTime::from_timestamp_opt(9, 0).unwrap(),
+                ts_end: Default::default(),
+                collector_id: "rrc00".to_string(),
+                data_type: "updates".to_string(),
+                url: "".to_string(),
+                rough_size: 0,
+                exact_size: 0,
+            },
+            BrokerItem {
+                ts_start: NaiveDateTime::from_timestamp_opt(10, 0).unwrap(),
+                ts_end: Default::default(),
+                collector_id: "route-views2".to_string(),
+                data_type: "rib".to_string(),
+                url: "".to_string(),
+                rough_size: 0,
+                exact_size: 0,
+            },
+            BrokerItem {
+                ts_start: NaiveDateTime::from_timestamp_opt(10, 0).unwrap(),
+                ts_end: Default::default(),
+                collector_id: "rrc00".to_string(),
+                data_type: "rib".to_string(),
+                url: "".to_string(),
+                rough_size: 0,
+                exact_size: 0,
+            },
+            BrokerItem {
+                ts_start: NaiveDateTime::from_timestamp_opt(10, 0).unwrap(),
+                ts_end: Default::default(),
+                collector_id: "rrc00".to_string(),
+                data_type: "updates".to_string(),
+                url: "".to_string(),
+                rough_size: 0,
+                exact_size: 0,
+            },
+        ];
+
+        assert_ne!(items, correct_items);
+        items.sort();
+        assert_eq!(items, correct_items);
+    }
+}

src/lib.rs

@@ -90,6 +90,7 @@ mod crawler;
 #[cfg(feature = "backend")]
 pub mod db;
 mod error;
+mod item;
 mod query;
 
 use crate::query::{CollectorLatestResult, QueryResult};
@@ -100,7 +101,8 @@ pub use crawler::{crawl_collector, load_collectors, Collector};
 #[cfg(feature = "backend")]
 pub use db::{LocalBrokerDb, UpdatesMeta, DEFAULT_PAGE_SIZE};
 pub use error::BrokerError;
-pub use query::{BrokerItem, QueryParams, SortOrder};
+pub use item::BrokerItem;
+pub use query::{QueryParams, SortOrder};
 
 /// BgpkitBroker struct maintains the broker's URL and handles making API queries.
 ///
@@ -497,12 +499,14 @@ impl BgpkitBroker {
             if let Some(data_type) = &self.query_params.data_type {
                 match data_type.to_lowercase().as_str() {
                     "rib" | "ribs" | "r" => {
-                        if item.data_type.as_str() != "rib" {
+                        if !item.is_rib() {
+                            // if not RIB file, not match
                             matches = false
                         }
                     }
                     "update" | "updates" => {
-                        if item.data_type.as_str() != "updates" {
+                        if item.is_rib() {
+                            // if is RIB file, not match
                             matches = false
                         }
                     }
@@ -739,13 +743,11 @@ mod tests {
 
         let broker = BgpkitBroker::new().data_type("rib".to_string());
         let items = broker.latest().unwrap();
-        assert!(items.iter().all(|item| item.data_type.as_str() == "rib"));
+        assert!(items.iter().all(|item| item.is_rib()));
 
         let broker = BgpkitBroker::new().data_type("update".to_string());
         let items = broker.latest().unwrap();
-        assert!(items
-            .iter()
-            .all(|item| item.data_type.as_str() == "updates"));
+        assert!(items.iter().all(|item| !item.is_rib()));
 
         let broker = BgpkitBroker::new().collector_id("rrc00".to_string());
         let items = broker.latest().unwrap();

src/query.rs

@@ -1,4 +1,5 @@
 //! Query-related structs and implementation.
+use crate::BrokerItem;
 use serde::{Deserialize, Serialize};
 use std::fmt::{Display, Formatter};
 
@@ -220,35 +221,6 @@ impl QueryParams {
     }
 }
 
-/// BGPKIT Broker data item.
-///
-/// The fields are:
-/// - [ts_start][BrokerItem::ts_start]: the starting timestamp of the data file
-/// - [ts_end][BrokerItem::ts_end]: the ending timestamp of the data file
-/// - [collector_id][BrokerItem::collector_id]: the collector id of the item: e.g. `rrc00`
-/// - [data_type][BrokerItem::data_type]: type of the data item: `rib` or `updates`
-/// - [url][BrokerItem::url]: the URL to the data item file
-/// - [rough_size][BrokerItem::rough_size]: rough file size extracted from the collector webpage
-/// - [exact_size][BrokerItem::exact_size]: exact file size extracted by crawling the file
-#[derive(Debug, Clone, Serialize, Deserialize)]
-#[cfg_attr(feature = "cli", derive(tabled::Tabled, utoipa::ToSchema))]
-pub struct BrokerItem {
-    /// start timestamp
-    pub ts_start: chrono::NaiveDateTime,
-    /// end timestamps
-    pub ts_end: chrono::NaiveDateTime,
-    /// the collector id of the item: e.g. `rrc00`
-    pub collector_id: String,
-    /// type of the data item: `rib` or `updates`
-    pub data_type: String,
-    /// the URL to the data item file
-    pub url: String,
-    /// rough file size extracted from the hosting site page
-    pub rough_size: i64,
-    /// exact file size extracted by crawling the file
-    pub exact_size: i64,
-}
-
 #[derive(Debug, Clone, Serialize, Deserialize)]
 #[cfg_attr(feature = "cli", derive(tabled::Tabled, utoipa::ToSchema))]
 pub struct BrokerCollector {
@@ -290,12 +262,6 @@ pub(crate) struct QueryResult {
     pub data: Vec<BrokerItem>,
 }
 
-impl Display for BrokerItem {
-    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
-        write!(f, "{}", serde_json::to_string(self).unwrap())
-    }
-}
-
 impl Display for QueryResult {
     fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
         write!(f, "{}", serde_json::to_string(self).unwrap())