parser for analyze.ts

Author: daveads

.gitignore

@@ -24,3 +24,4 @@ graphql/gqlgen/main
 tailcall-src
 
 metals.*
+parser/target/*

parser/Cargo.lock

@@ -0,0 +1,12 @@
+[package]
+name = "parser"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib"]
+
+[dependencies]
+wasm-bindgen = { version = "0.2.92" }
+serde = { version = "1.0", features = ["derive"] }
+serde-wasm-bindgen = "0.6"

parser/Cargo.toml

@@ -0,0 +1,70 @@
+use wasm_bindgen::prelude::*;
+use serde::{Serialize, Deserialize};
+use std::collections::HashMap;
+
+#[derive(Serialize, Deserialize)]
+pub struct ServerMetrics {
+    req_sec: f64,
+    latency: f64,
+}
+
+#[wasm_bindgen]
+pub fn parse_server_metrics(servers: Vec<String>, result_contents: Vec<String>) -> JsValue {
+    let server_metrics = calculate_server_metrics(&servers, &result_contents);
+    serde_wasm_bindgen::to_value(&server_metrics).unwrap()
+}
+
+fn calculate_server_metrics(servers: &[String], result_contents: &[String]) -> HashMap<String, ServerMetrics> {
+    let mut server_metrics = HashMap::new();
+
+    for (idx, server) in servers.iter().enumerate() {
+        let start_idx = idx * 3;
+        let mut req_sec_vals = Vec::new();
+        let mut latency_vals = Vec::new();
+
+        for j in 0..3 {
+            let input_idx = start_idx + j;
+            if input_idx < result_contents.len() {
+                if let Some(req_sec) = parse_metric(&result_contents[input_idx], "Requests/sec") {
+                    req_sec_vals.push(req_sec);
+                }
+                if let Some(latency) = parse_metric(&result_contents[input_idx], "Latency") {
+                    latency_vals.push(latency);
+                }
+            }
+        }
+
+        server_metrics.insert(server.clone(), ServerMetrics {
+            req_sec: calculate_average(&req_sec_vals),
+            latency: calculate_average(&latency_vals),
+        });
+    }
+
+    server_metrics
+}
+
+fn parse_metric(input: &str, metric: &str) -> Option<f64> {
+    let lines: Vec<&str> = input.lines().collect();
+    let metric_line = lines.iter().find(|line| line.trim().starts_with(metric))?;
+    
+    let parts: Vec<&str> = metric_line.split_whitespace().collect();
+    match metric {
+        "Latency" => {
+            // Assume format: "Latency    13.08ms    5.37ms 153.52ms   88.69%"
+            parts.get(1).and_then(|val| val.trim_end_matches("ms").parse::<f64>().ok())
+        },
+        "Requests/sec" => {
+            // Assume format: "Requests/sec:   7746.27"
+            parts.get(1).and_then(|val| val.parse::<f64>().ok())
+        },
+        _ => None,
+    }
+}
+
+fn calculate_average(values: &[f64]) -> f64 {
+    if values.is_empty() {
+        0.0
+    } else {
+        values.iter().sum::<f64>() / values.len() as f64
+    }
+}