JAVA-12731: Move spring-session into spring-web-modules

spring-web-modules/spring-session/spring-session-jdbc/src/main/java/com/baeldung/springsessionjdbc/SpringSessionJdbcApplication.java

@@ -0,0 +1,12 @@
+package com.baeldung.springsessionjdbc;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringSessionJdbcApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringSessionJdbcApplication.class, args);
+    }
+}

spring-web-modules/spring-session/spring-session-jdbc/src/main/java/com/baeldung/springsessionjdbc/controller/SpringSessionJdbcController.java

@@ -0,0 +1,45 @@
+package com.baeldung.springsessionjdbc.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.util.StringUtils;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+import java.util.ArrayList;
+import java.util.List;
+
+@Controller
+public class SpringSessionJdbcController {
+
+    @GetMapping("/")
+    public String index(Model model, HttpSession session) {
+        List<String> favoriteColors = getFavColors(session);
+        model.addAttribute("favoriteColors", favoriteColors);
+        model.addAttribute("sessionId", session.getId());
+        return "index";
+    }
+
+    @PostMapping("/saveColor")
+    public String saveMessage(@RequestParam("color") String color, HttpServletRequest request) {
+        List<String> favoriteColors = getFavColors(request.getSession());
+        if (!StringUtils.isEmpty(color)) {
+            favoriteColors.add(color);
+            request
+              .getSession()
+              .setAttribute("favoriteColors", favoriteColors);
+        }
+        return "redirect:/";
+    }
+
+    private List<String> getFavColors(HttpSession session) {
+        List<String> favoriteColors = (List<String>) session.getAttribute("favoriteColors");
+        if (favoriteColors == null) {
+            favoriteColors = new ArrayList<>();
+        }
+        return favoriteColors;
+    }
+}

spring-web-modules/spring-session/spring-session-jdbc/src/main/resources/application.properties

@@ -0,0 +1,4 @@
+spring.datasource.generate-unique-name=false
+spring.session.store-type=jdbc
+spring.h2.console.enabled=true
+spring.h2.console.path=/h2-console

spring-web-modules/spring-session/spring-session-jdbc/src/main/resources/logback.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<configuration>
+    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+        <encoder>
+            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
+            </pattern>
+        </encoder>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="STDOUT" />
+    </root>
+</configuration>

spring-web-modules/spring-session/spring-session-jdbc/src/test/java/com/baeldung/SpringContextTest.java

@@ -0,0 +1,17 @@
+package com.baeldung;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import com.baeldung.springsessionjdbc.SpringSessionJdbcApplication;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(classes = SpringSessionJdbcApplication.class)
+public class SpringContextTest {
+
+    @Test
+    public void whenSpringContextIsBootstrapped_thenNoExceptions() {
+    }
+}

spring-web-modules/spring-session/spring-session-jdbc/src/test/java/com/baeldung/springsessionjdbc/SpringSessionJdbcIntegrationTest.java

@@ -0,0 +1,91 @@
+package com.baeldung.springsessionjdbc;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.FixMethodOrder;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.MethodSorters;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.web.client.TestRestTemplate;
+import org.springframework.boot.web.server.LocalServerPort;
+import org.springframework.test.context.junit4.SpringRunner;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.ObjectInput;
+import java.io.ObjectInputStream;
+import java.sql.*;
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+public class SpringSessionJdbcIntegrationTest {
+
+    @LocalServerPort
+    private int port;
+
+    @Autowired
+    private TestRestTemplate testRestTemplate;
+
+    @Before
+    public void setup() throws ClassNotFoundException {
+        Class.forName("org.h2.Driver");
+    }
+
+    @Test
+    public void givenApiHasStarted_whenH2DbIsQueried_thenSessionTablesAreEmpty() throws SQLException {
+        Assert.assertEquals(0, getSessionIdsFromDatabase().size());
+        Assert.assertEquals(0, getSessionAttributeBytesFromDatabase().size());
+    }
+
+    @Test
+    public void givenGetInvoked_whenH2DbIsQueried_thenOneSessionIsCreated() throws SQLException {
+        assertThat(this.testRestTemplate.getForObject("http://localhost:" + port + "/", String.class)).isNotEmpty();
+        Assert.assertEquals(1, getSessionIdsFromDatabase().size());
+    }
+
+    @Test
+    public void givenPostInvoked_whenH2DbIsQueried_thenSessionAttributeIsRetrieved() throws ClassNotFoundException, SQLException, IOException {
+        MultiValueMap<String, String> map = new LinkedMultiValueMap<>();
+        map.add("color", "red");
+        this.testRestTemplate.postForObject("http://localhost:" + port + "/saveColor", map, String.class);
+        List<byte[]> queryResponse = getSessionAttributeBytesFromDatabase();
+        Assert.assertEquals(1, queryResponse.size());
+        ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(queryResponse.get(0)));
+        List<String> obj = (List<String>) in.readObject(); //Deserialize byte[] to object
+        Assert.assertEquals("red", obj.get(0));
+    }
+
+    private List<String> getSessionIdsFromDatabase() throws SQLException {
+        List<String> result = new ArrayList<>();
+        ResultSet rs = getResultSet("SELECT * FROM SPRING_SESSION");
+        while (rs.next()) {
+            result.add(rs.getString("SESSION_ID"));
+        }
+        return result;
+    }
+
+    private List<byte[]> getSessionAttributeBytesFromDatabase() throws SQLException {
+        List<byte[]> result = new ArrayList<>();
+        ResultSet rs = getResultSet("SELECT * FROM SPRING_SESSION_ATTRIBUTES");
+        while (rs.next()) {
+            result.add(rs.getBytes("ATTRIBUTE_BYTES"));
+        }
+        return result;
+    }
+
+    private ResultSet getResultSet(String sql) throws SQLException {
+        Connection conn = DriverManager.getConnection("jdbc:h2:mem:testdb", "sa", "");
+        Statement stat = conn.createStatement();
+        return stat.executeQuery(sql);
+    }
+
+}