netology-code · kulbarakov · Apr 11, 2022 · Apr 11, 2022 · May 23, 2022 · May 24, 2022
diff --git a/01_web/http-server/pom.xml b/01_web/http-server/pom.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.netology</groupId>
+    <artifactId>http-server</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>
diff --git a/01_web/http-server/public/app.js b/01_web/http-server/public/app.js
@@ -0,0 +1 @@
+console.log('it works!');
diff --git a/01_web/http-server/public/classic.html b/01_web/http-server/public/classic.html
@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport"
+        content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <title>Document</title>
+</head>
+<body>
+<h1>Classic Demo</h1>
+<p>Current time is: {time}</p>
+</body>
+</html>
diff --git a/01_web/http-server/public/events.html b/01_web/http-server/public/events.html
@@ -0,0 +1,16 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport"
+        content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <title>Document</title>
+</head>
+<body>
+<p>You clicked:  <span data-id="counter">0</span></p>
+<button data-action="inc">Click me</button>
+
+<script src="events.js"></script>
+</body>
+</html>
diff --git a/01_web/http-server/public/events.js b/01_web/http-server/public/events.js
@@ -0,0 +1,8 @@
+let count = 0;
+const counterEl = document.querySelector('[data-id="counter"]');
+const incEl = document.querySelector('[data-action="inc"]');
+
+incEl.addEventListener('click', () => {
+   count++;
+   counterEl.textContent = `${count}`;
+});
diff --git a/01_web/http-server/public/forms.html b/01_web/http-server/public/forms.html
@@ -0,0 +1,18 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport"
+        content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <title>Document</title>
+</head>
+<body>
+<h1>Forms Demo</h1>
+<form>
+  <input name="login" placeholder="Login">
+  <input name="password" type="password" placeholder="Password">
+  <button>Login</button>
+</form>
+</body>
+</html>
diff --git a/01_web/http-server/public/index.html b/01_web/http-server/public/index.html
@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport"
+        content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <title>HTML Document</title>
+</head>
+<body>
+  <h1>HTML Document</h1>
+</body>
+</html>
diff --git a/01_web/http-server/public/links.html b/01_web/http-server/public/links.html
@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport"
+        content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <title>Document</title>
+</head>
+<body>
+  <a href="./spring.png">PNG Logo</a>
+  <a href="./spring.svg">SVG Logo</a>
+</body>
+</html>
diff --git a/01_web/http-server/public/resources.html b/01_web/http-server/public/resources.html
@@ -0,0 +1,16 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport"
+        content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
+  <meta http-equiv="X-UA-Compatible" content="ie=edge">
+  <title>HTML Document</title>
+  <link rel="stylesheet" href="styles.css">
+</head>
+<body>
+  <h1>HTML Document</h1>
+  <img src="spring.png">
+  <script src="app.js"></script>
+</body>
+</html>
diff --git a/01_web/http-server/public/spring.png b/01_web/http-server/public/spring.png
diff --git a/01_web/http-server/public/spring.svg b/01_web/http-server/public/spring.svg
diff --git a/01_web/http-server/public/styles.css b/01_web/http-server/public/styles.css
@@ -0,0 +1,4 @@
+body {
+  color: #6EB149;
+  font-family: Arial, serif;
+}
diff --git a/01_web/http-server/src/main/java/ru/netology/Handler.java b/01_web/http-server/src/main/java/ru/netology/Handler.java
@@ -0,0 +1,7 @@
+package ru.netology;
+
+import java.io.BufferedOutputStream;
+
+public interface Handler {
+    public void handle(Request request, BufferedOutputStream responseStream);
+}
diff --git a/01_web/http-server/src/main/java/ru/netology/Main.java b/01_web/http-server/src/main/java/ru/netology/Main.java
@@ -0,0 +1,10 @@
+package ru.netology;
+
+public class Main {
+  public static void main(String[] args) {
+    final var server = new Server();
+    server.listen();
+  }
+}
+
+
diff --git a/01_web/http-server/src/main/java/ru/netology/Request.java b/01_web/http-server/src/main/java/ru/netology/Request.java
@@ -0,0 +1,4 @@
+package ru.netology;
+
+public class Request {
+}
diff --git a/01_web/http-server/src/main/java/ru/netology/Server.java b/01_web/http-server/src/main/java/ru/netology/Server.java
@@ -0,0 +1,102 @@
+package ru.netology;
+
+import java.io.BufferedOutputStream;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.concurrent.Executors;
+
+public class Server {
+
+    private final List<String> validPaths = List.of("/index.html", "/spring.svg", "/spring.png", "/resources.html", "/styles.css", "/app.js", "/links.html", "/forms.html", "/classic.html", "/events.html", "/events.js");
+
+    public void listen() {
+        var poolExecutor = Executors.newFixedThreadPool(64);
+
+        try (final var serverSocket = new ServerSocket(9999)) {
+            log("Server start!");
+            while (true) {
+                Socket socket = serverSocket.accept();
+                poolExecutor.submit(() -> handle(socket));
+            }
+        } catch (IOException e) {
+            e.printStackTrace(System.out);
+        }
+    }
+
+    public void handle(Socket socket) {
+        try (final var in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
+             final var out = new BufferedOutputStream(socket.getOutputStream())
+        ) {
+            log("client connected: " + socket.getRemoteSocketAddress());
+            // read only request line for simplicity
+            // must be in form GET /path HTTP/1.1
+            final var requestLine = in.readLine();
+            final var parts = requestLine.split(" ");
+
+            if (parts.length != 3) {
+                // just close socket
+                log("Invalid request");
+                return;
+            }
+
+            final var path = parts[1];
+            if (!validPaths.contains(path)) {
+                out.write((
+                        "HTTP/1.1 404 Not Found\r\n" +
+                                "Content-Length: 0\r\n" +
+                                "Connection: close\r\n" +
+                                "\r\n"
+                ).getBytes());
+                out.flush();
+                return;
+            }
+
+            final var filePath = Path.of(".", "public", path);
+            final var mimeType = Files.probeContentType(filePath);
+            // special case for classic
+            if (path.equals("/classic.html")) {
+                final var template = Files.readString(filePath);
+                final var content = template.replace(
+                        "{time}",
+                        LocalDateTime.now().toString()
+                ).getBytes();
+                out.write((
+                        "HTTP/1.1 200 OK\r\n" +
+                                "Content-Type: " + mimeType + "\r\n" +
+                                "Content-Length: " + content.length + "\r\n" +
+                                "Connection: close\r\n" +
+                                "\r\n"
+                ).getBytes());
+                out.write(content);
+                out.flush();
+                log("classic.html loaded");
+                return;
+            }
+
+            final var length = Files.size(filePath);
+            out.write((
+                    "HTTP/1.1 200 OK\r\n" +
+                            "Content-Type: " + mimeType + "\r\n" +
+                            "Content-Length: " + length + "\r\n" +
+                            "Connection: close\r\n" +
+                            "\r\n"
+            ).getBytes());
+            Files.copy(filePath, out);
+            log(filePath.getFileName() + " loaded");
+            out.flush();
+        } catch (IOException e) {
+            e.printStackTrace(System.out);
+        }
+    }
+
+    private void log(String message) {
+        System.out.println("[" + Thread.currentThread().getName() + "] " + message);
+    }
+}
diff --git a/01_web/http-server/target/classes/ru/netology/Main.class b/01_web/http-server/target/classes/ru/netology/Main.class
diff --git a/01_web/http-server/target/classes/ru/netology/Server.class b/01_web/http-server/target/classes/ru/netology/Server.class
diff --git a/04_servlets/servlets/pom.xml b/04_servlets/servlets/pom.xml
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>ru.netology</groupId>
+    <artifactId>servlets</artifactId>
+    <version>1.0-SNAPSHOT</version>
+    <packaging>war</packaging>
+    <dependencies>
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>javax.servlet-api</artifactId>
+            <version>4.0.1</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <version>2.9.0</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-dependency-plugin</artifactId>
+                <version>3.3.0</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals><goal>copy</goal></goals>
+                        <configuration>
+                            <artifactItems>
+                                <artifactItem>
+                                    <groupId>com.heroku</groupId>
+                                    <artifactId>webapp-runner</artifactId>
+                                    <version>9.0.27.1</version>
+                                    <destFileName>webapp-runner.jar</destFileName>
+                                </artifactItem>
+                            </artifactItems>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+</project>
diff --git a/04_servlets/servlets/src/main/java/ru/netology/controller/PostController.java b/04_servlets/servlets/src/main/java/ru/netology/controller/PostController.java
@@ -0,0 +1,47 @@
+package ru.netology.controller;
+
+import com.google.gson.Gson;
+import ru.netology.model.Post;
+import ru.netology.service.PostService;
+
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.io.Reader;
+
+public class PostController {
+    public static final String APPLICATION_JSON = "application/json";
+    private final PostService service;
+
+    public PostController(PostService service) {
+        this.service = service;
+    }
+
+    public void all(HttpServletResponse response) throws IOException {
+        response.setContentType(APPLICATION_JSON);
+        final var data = service.all();
+        final var gson = new Gson();
+        response.getWriter().print(gson.toJson(data));
+    }
+
+    public void getById(long id, HttpServletResponse response) throws IOException {
+        // TODO: deserialize request & serialize response
+        response.setContentType(APPLICATION_JSON);
+        final var gson = new Gson();
+        final var post = service.getById(id);
+        response.getWriter().print(gson.toJson(post));
+    }
+
+    public void save(Reader body, HttpServletResponse response) throws IOException {
+        response.setContentType(APPLICATION_JSON);
+        final var gson = new Gson();
+        final var post = gson.fromJson(body, Post.class);
+        final var data = service.save(post);
+        response.getWriter().print(gson.toJson(data));
+    }
+
+    public void removeById(long id, HttpServletResponse response) {
+        // TODO: deserialize request & serialize response
+        response.setContentType(APPLICATION_JSON);
+        service.removeById(id);
+    }
+}
diff --git a/04_servlets/servlets/src/main/java/ru/netology/exception/NotFoundException.java b/04_servlets/servlets/src/main/java/ru/netology/exception/NotFoundException.java
@@ -0,0 +1,22 @@
+package ru.netology.exception;
+
+public class NotFoundException extends RuntimeException {
+  public NotFoundException() {
+  }
+
+  public NotFoundException(String message) {
+    super(message);
+  }
+
+  public NotFoundException(String message, Throwable cause) {
+    super(message, cause);
+  }
+
+  public NotFoundException(Throwable cause) {
+    super(cause);
+  }
+
+  public NotFoundException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
+    super(message, cause, enableSuppression, writableStackTrace);
+  }
+}