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| 1 | +package com.httparena; |
| 2 | + |
| 3 | +import com.fasterxml.jackson.core.type.TypeReference; |
| 4 | +import com.fasterxml.jackson.databind.ObjectMapper; |
| 5 | +import io.pebbletemplates.pebble.PebbleEngine; |
| 6 | +import io.pebbletemplates.pebble.template.PebbleTemplate; |
| 7 | +import io.vertx.pgclient.PgBuilder; |
| 8 | +import io.vertx.pgclient.PgConnectOptions; |
| 9 | +import io.vertx.sqlclient.*; |
| 10 | +import robaho.net.httpserver.HttpServer; |
| 11 | +import com.sun.net.httpserver.HttpExchange; |
| 12 | +import com.sun.net.httpserver.HttpHandler; |
| 13 | + |
| 14 | +import java.io.*; |
| 15 | +import java.net.InetSocketAddress; |
| 16 | +import java.net.URI; |
| 17 | +import java.nio.file.Files; |
| 18 | +import java.nio.file.Path; |
| 19 | +import java.util.*; |
| 20 | +import java.util.concurrent.Executors; |
| 21 | +import java.util.zip.GZIPOutputStream; |
| 22 | + |
| 23 | +public class Main { |
| 24 | + |
| 25 | + static final ObjectMapper mapper = new ObjectMapper(); |
| 26 | + static final PebbleEngine pebble = new PebbleEngine.Builder().autoEscaping(true).build(); |
| 27 | + static final PebbleTemplate fortunesTemplate = pebble.getTemplate("fortunes.html"); |
| 28 | + static List<Item> dataset = List.of(); |
| 29 | + static Pool pgPool; |
| 30 | + |
| 31 | + public static void main(String[] args) throws Exception { |
| 32 | + loadDataset(); |
| 33 | + initPostgres(); |
| 34 | + |
| 35 | + HttpServer server = HttpServer.create(new InetSocketAddress(8080), 0); |
| 36 | + server.setExecutor(Executors.newVirtualThreadPerTaskExecutor()); |
| 37 | + |
| 38 | + server.createContext("/baseline11", new BaselineHandler()); |
| 39 | + server.createContext("/baseline2", new BaselineHandler()); |
| 40 | + server.createContext("/pipeline", new PipelineHandler()); |
| 41 | + server.createContext("/json/", new JsonHandler()); |
| 42 | + server.createContext("/upload", new UploadHandler()); |
| 43 | + server.createContext("/static/", new StaticHandler()); |
| 44 | + if (pgPool != null) { |
| 45 | + server.createContext("/async-db", new AsyncDbHandler()); |
| 46 | + server.createContext("/fortunes", new FortunesHandler()); |
| 47 | + } |
| 48 | + |
| 49 | + server.start(); |
| 50 | + } |
| 51 | + |
| 52 | + static void loadDataset() { |
| 53 | + String path = System.getenv().getOrDefault("DATASET_PATH", "/data/dataset.json"); |
| 54 | + try { |
| 55 | + dataset = mapper.readValue(new File(path), new TypeReference<>() {}); |
| 56 | + } catch (Exception ignored) {} |
| 57 | + } |
| 58 | + |
| 59 | + static void initPostgres() { |
| 60 | + String url = System.getenv("DATABASE_URL"); |
| 61 | + if (url == null || url.isEmpty()) return; |
| 62 | + try { |
| 63 | + URI uri = new URI(url); |
| 64 | + String[] userInfo = uri.getUserInfo().split(":"); |
| 65 | + PgConnectOptions connectOptions = new PgConnectOptions() |
| 66 | + .setHost(uri.getHost()) |
| 67 | + .setPort(uri.getPort()) |
| 68 | + .setDatabase(uri.getPath().substring(1)) |
| 69 | + .setUser(userInfo[0]) |
| 70 | + .setPassword(userInfo[1]); |
| 71 | + PoolOptions poolOptions = new PoolOptions().setMaxSize(64); |
| 72 | + pgPool = PgBuilder.pool() |
| 73 | + .with(poolOptions) |
| 74 | + .connectingTo(connectOptions) |
| 75 | + .build(); |
| 76 | + } catch (Exception ignored) {} |
| 77 | + } |
| 78 | + |
| 79 | + static Map<String, String> parseQuery(String query) { |
| 80 | + Map<String, String> params = new HashMap<>(); |
| 81 | + if (query == null) return params; |
| 82 | + for (String pair : query.split("&")) { |
| 83 | + int eq = pair.indexOf('='); |
| 84 | + if (eq > 0) params.put(pair.substring(0, eq), pair.substring(eq + 1)); |
| 85 | + } |
| 86 | + return params; |
| 87 | + } |
| 88 | + |
| 89 | + static void sendText(HttpExchange ex, String text) throws IOException { |
| 90 | + byte[] bytes = text.getBytes(); |
| 91 | + ex.getResponseHeaders().set("Content-Type", "text/plain"); |
| 92 | + ex.sendResponseHeaders(200, bytes.length); |
| 93 | + ex.getResponseBody().write(bytes); |
| 94 | + ex.close(); |
| 95 | + } |
| 96 | + |
| 97 | + static void sendJson(HttpExchange ex, Object obj) throws IOException { |
| 98 | + byte[] bytes = mapper.writeValueAsBytes(obj); |
| 99 | + String accept = ex.getRequestHeaders().getFirst("Accept-Encoding"); |
| 100 | + if (accept != null && accept.contains("gzip")) { |
| 101 | + ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| 102 | + try (GZIPOutputStream gz = new GZIPOutputStream(baos)) { gz.write(bytes); } |
| 103 | + bytes = baos.toByteArray(); |
| 104 | + ex.getResponseHeaders().set("Content-Encoding", "gzip"); |
| 105 | + } |
| 106 | + ex.getResponseHeaders().set("Content-Type", "application/json"); |
| 107 | + ex.sendResponseHeaders(200, bytes.length); |
| 108 | + ex.getResponseBody().write(bytes); |
| 109 | + ex.close(); |
| 110 | + } |
| 111 | + |
| 112 | + // --- Handlers --- |
| 113 | + |
| 114 | + static class BaselineHandler implements HttpHandler { |
| 115 | + public void handle(HttpExchange ex) throws IOException { |
| 116 | + Map<String, String> params = parseQuery(ex.getRequestURI().getQuery()); |
| 117 | + int a = Integer.parseInt(params.getOrDefault("a", "0")); |
| 118 | + int b = Integer.parseInt(params.getOrDefault("b", "0")); |
| 119 | + int sum = a + b; |
| 120 | + if ("POST".equals(ex.getRequestMethod())) { |
| 121 | + String body = new String(ex.getRequestBody().readAllBytes()); |
| 122 | + sum += Integer.parseInt(body.trim()); |
| 123 | + } |
| 124 | + sendText(ex, String.valueOf(sum)); |
| 125 | + } |
| 126 | + } |
| 127 | + |
| 128 | + static class PipelineHandler implements HttpHandler { |
| 129 | + public void handle(HttpExchange ex) throws IOException { |
| 130 | + sendText(ex, "ok"); |
| 131 | + } |
| 132 | + } |
| 133 | + |
| 134 | + static class JsonHandler implements HttpHandler { |
| 135 | + public void handle(HttpExchange ex) throws IOException { |
| 136 | + String path = ex.getRequestURI().getPath(); |
| 137 | + int count = Integer.parseInt(path.substring(path.lastIndexOf('/') + 1)); |
| 138 | + Map<String, String> params = parseQuery(ex.getRequestURI().getQuery()); |
| 139 | + int m = Integer.parseInt(params.getOrDefault("m", "1")); |
| 140 | + int n = Math.min(Math.max(count, 0), dataset.size()); |
| 141 | + List<Map<String, Object>> items = new ArrayList<>(n); |
| 142 | + for (int i = 0; i < n; i++) { |
| 143 | + Item item = dataset.get(i); |
| 144 | + Map<String, Object> map = new LinkedHashMap<>(); |
| 145 | + map.put("id", item.id()); |
| 146 | + map.put("name", item.name()); |
| 147 | + map.put("category", item.category()); |
| 148 | + map.put("price", item.price()); |
| 149 | + map.put("quantity", item.quantity()); |
| 150 | + map.put("active", item.active()); |
| 151 | + map.put("tags", item.tags()); |
| 152 | + map.put("rating", item.rating()); |
| 153 | + map.put("total", (long) item.price() * item.quantity() * m); |
| 154 | + items.add(map); |
| 155 | + } |
| 156 | + sendJson(ex, Map.of("items", items, "count", items.size())); |
| 157 | + } |
| 158 | + } |
| 159 | + |
| 160 | + static class UploadHandler implements HttpHandler { |
| 161 | + public void handle(HttpExchange ex) throws IOException { |
| 162 | + long size = ex.getRequestBody().transferTo(OutputStream.nullOutputStream()); |
| 163 | + sendText(ex, String.valueOf(size)); |
| 164 | + } |
| 165 | + } |
| 166 | + |
| 167 | + static class StaticHandler implements HttpHandler { |
| 168 | + public void handle(HttpExchange ex) throws IOException { |
| 169 | + String path = ex.getRequestURI().getPath(); |
| 170 | + String file = path.substring("/static/".length()); |
| 171 | + Path filePath = Path.of("/data/static", file); |
| 172 | + if (!Files.exists(filePath)) { |
| 173 | + ex.sendResponseHeaders(404, -1); |
| 174 | + ex.close(); |
| 175 | + return; |
| 176 | + } |
| 177 | + byte[] data = Files.readAllBytes(filePath); |
| 178 | + String contentType = Files.probeContentType(filePath); |
| 179 | + if (contentType == null) contentType = "application/octet-stream"; |
| 180 | + ex.getResponseHeaders().set("Content-Type", contentType); |
| 181 | + ex.sendResponseHeaders(200, data.length); |
| 182 | + ex.getResponseBody().write(data); |
| 183 | + ex.close(); |
| 184 | + } |
| 185 | + } |
| 186 | + |
| 187 | + static class AsyncDbHandler implements HttpHandler { |
| 188 | + public void handle(HttpExchange ex) throws IOException { |
| 189 | + Map<String, String> params = parseQuery(ex.getRequestURI().getQuery()); |
| 190 | + int min = Integer.parseInt(params.getOrDefault("min", "10")); |
| 191 | + int max = Integer.parseInt(params.getOrDefault("max", "50")); |
| 192 | + int limit = Math.min(Math.max(Integer.parseInt(params.getOrDefault("limit", "50")), 1), 50); |
| 193 | + |
| 194 | + RowSet<Row> rows; |
| 195 | + try { |
| 196 | + rows = pgPool.preparedQuery("SELECT id, name, category, price, quantity, active, tags, rating_score, rating_count FROM items WHERE price BETWEEN $1 AND $2 LIMIT $3") |
| 197 | + .execute(Tuple.of(min, max, limit)) |
| 198 | + .toCompletionStage().toCompletableFuture().join(); |
| 199 | + } catch (Exception e) { |
| 200 | + ex.sendResponseHeaders(500, -1); |
| 201 | + ex.close(); |
| 202 | + return; |
| 203 | + } |
| 204 | + |
| 205 | + List<Item> items = new ArrayList<>(); |
| 206 | + for (Row row : rows) { |
| 207 | + List<String> tags = mapper.readValue(row.getString("tags"), new TypeReference<>() {}); |
| 208 | + items.add(new Item(row.getInteger("id"), row.getString("name"), row.getString("category"), |
| 209 | + row.getInteger("price"), row.getInteger("quantity"), row.getBoolean("active"), |
| 210 | + tags, new Rating(row.getInteger("rating_score"), row.getInteger("rating_count")))); |
| 211 | + } |
| 212 | + sendJson(ex, Map.of("items", items, "count", items.size())); |
| 213 | + } |
| 214 | + } |
| 215 | + |
| 216 | + static class FortunesHandler implements HttpHandler { |
| 217 | + public void handle(HttpExchange ex) throws IOException { |
| 218 | + RowSet<Row> rows; |
| 219 | + try { |
| 220 | + rows = pgPool.preparedQuery("SELECT id, message FROM fortune") |
| 221 | + .execute() |
| 222 | + .toCompletionStage().toCompletableFuture().join(); |
| 223 | + } catch (Exception e) { |
| 224 | + ex.sendResponseHeaders(500, -1); |
| 225 | + ex.close(); |
| 226 | + return; |
| 227 | + } |
| 228 | + |
| 229 | + List<Fortune> fortunes = new ArrayList<>(); |
| 230 | + for (Row row : rows) { |
| 231 | + fortunes.add(new Fortune(row.getInteger("id"), row.getString("message"))); |
| 232 | + } |
| 233 | + fortunes.add(new Fortune(0, "Additional fortune added at request time.")); |
| 234 | + fortunes.sort((a, b) -> a.message().compareTo(b.message())); |
| 235 | + |
| 236 | + StringWriter writer = new StringWriter(); |
| 237 | + fortunesTemplate.evaluate(writer, Map.of("fortunes", fortunes)); |
| 238 | + byte[] bytes = writer.toString().getBytes(); |
| 239 | + ex.getResponseHeaders().set("Content-Type", "text/html; charset=utf-8"); |
| 240 | + ex.sendResponseHeaders(200, bytes.length); |
| 241 | + ex.getResponseBody().write(bytes); |
| 242 | + ex.close(); |
| 243 | + } |
| 244 | + } |
| 245 | + |
| 246 | + record Fortune(int id, String message) {} |
| 247 | + record Item(int id, String name, String category, int price, int quantity, boolean active, List<String> tags, Rating rating) {} |
| 248 | + record Rating(int score, int count) {} |
| 249 | +} |
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