working

pom.xml

@@ -33,7 +33,11 @@
 			<artifactId>basiclti-util</artifactId>
 			<version>1.1.2</version>
 		</dependency>
-
+		<dependency>
+			<groupId>javax.xml.parsers</groupId>
+			<artifactId>jaxp-api</artifactId>
+			<version>1.4.5</version>
+		</dependency>
 		<dependency>
 			<groupId>mysql</groupId>
 			<artifactId>mysql-connector-java</artifactId>

src/main/java/com/wmi/lti/controllers/GradeController.java

@@ -1,17 +1,28 @@
 package com.wmi.lti.controllers;
 
+import com.wmi.lti.model.course.Course;
+import com.wmi.lti.model.course.CourseRepository;
 import com.wmi.lti.model.grade.Grade;
 import com.wmi.lti.model.grade.GradeRepository;
+import com.wmi.lti.model.user.User;
+import com.wmi.lti.model.user.UserRepository;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
+import org.w3c.dom.Document;
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
 
 import javax.servlet.http.HttpServletRequest;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
 import java.io.IOException;
+import java.io.StringReader;
 import java.util.Map;
+import java.util.Optional;
 import java.util.Scanner;
 
 @RequestMapping("/grades")
@@ -21,14 +32,27 @@ public class GradeController {
     @Autowired
     private GradeRepository gradeRepository;
 
+    @Autowired
+    private UserRepository userRepository;
+
+    @Autowired
+    private CourseRepository courseRepository;
+
     @PostMapping("")
     public String addCourse(@RequestParam(required = false) Map<String, String> args, HttpServletRequest request) throws IOException {
+        String gradeXML = extractPostRequestBody(request);
+        double gradeValue = Double.valueOf(gradeXML.split("<textString>")[1].split("</textString>")[0]);
+        String cell = gradeXML.split("<sourcedId>")[1].split("</sourcedId>")[0];
+        User user = userRepository.findByUsername(cell.replaceFirst("_.*", ""));
+        Course course = courseRepository.findFirstByName(cell.replaceFirst(".*_", ""));
 
-        Grade grade = new Grade();
-        grade.setDescription(extractPostRequestBody(request));
-        System.out.println(grade.getDescription());
+        Optional<Grade> gradeCheck = gradeRepository.findGradeByCourseAndUser(course, user);
+        Grade grade = gradeCheck.orElseGet(Grade::new);
+        grade.setCourse(course);
+        grade.setGrade(gradeValue);
+        grade.setUser(user);
         gradeRepository.save(grade);
-        return "done";
+        return response();
     }
 
     static String extractPostRequestBody(HttpServletRequest request) throws IOException {
@@ -39,4 +63,28 @@ public class GradeController {
         return "";
     }
 
+
+
+
+    private String response(){
+        return "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" +
+                "<imsx_POXEnvelopeResponse xmlns=\"http://www.imsglobal.org/services/ltiv1p1/xsd/imsoms_v1p0\">\n" +
+                "  <imsx_POXHeader>\n" +
+                "    <imsx_POXResponseHeaderInfo>\n" +
+                "      <imsx_version>V1.0</imsx_version>\n" +
+                "      <imsx_messageIdentifier>4560</imsx_messageIdentifier>\n" +
+                "      <imsx_statusInfo>\n" +
+                "        <imsx_codeMajor>success</imsx_codeMajor>\n" +
+                "        <imsx_severity>status</imsx_severity>\n" +
+                "        <imsx_messageRefIdentifier>999999123</imsx_messageRefIdentifier>\n" +
+                "        <imsx_operationRefIdentifier>replaceResult</imsx_operationRefIdentifier>\n" +
+                "      </imsx_statusInfo>\n" +
+                "    </imsx_POXResponseHeaderInfo>\n" +
+                "  </imsx_POXHeader>\n" +
+                "  <imsx_POXBody>\n" +
+                "    <replaceResultResponse />\n" +
+                "  </imsx_POXBody>\n" +
+                "</imsx_POXEnvelopeResponse>";
+    }
+
 }

src/main/java/com/wmi/lti/controllers/StartController.java

@@ -2,6 +2,9 @@ package com.wmi.lti.controllers;
 
 import com.wmi.lti.model.course.Course;
 import com.wmi.lti.model.course.CourseRepository;
+import com.wmi.lti.model.grade.Grade;
+import com.wmi.lti.model.grade.GradeDTO;
+import com.wmi.lti.model.grade.GradeRepository;
 import com.wmi.lti.model.user.User;
 import com.wmi.lti.model.user.UserPrincipal;
 import com.wmi.lti.model.user.UserRepository;
@@ -30,6 +33,9 @@ public class StartController {
     @Autowired
     private UserRepository userRepository;
 
+    @Autowired
+    private GradeRepository gradeRepository;
+
     @GetMapping("")
     public String start(Model model){
         List<Course> courses = courseRepository.findAll();
@@ -44,7 +50,9 @@ public class StartController {
             parameters.put("user_id", user.getId().toString());
             parameters.put("lis_person_name_given", user.getUsername());
             parameters.put("tool_consumer_instance_name", "wmi.lti");
-            parameters.put("target", "frame");
+            //parameters.put("target", "frame");
+            parameters.put("lis_outcome_service_url", "http://localhost:8080/grades");
+            parameters.put("lis_result_sourcedid", user.getUsername() + "_" + course.getCourse_key());
             try {
                 Map<String, String> signedParameters = signer.signParameters(parameters, course.getCourse_key(), course.getSecret(), course.getUrl(), "POST");
                /* String link = course.getUrl();
@@ -57,7 +65,15 @@ public class StartController {
                 e.printStackTrace();
             }
         }
+
+        List<Grade> grades = gradeRepository.findAllByUser(user);
+        List<GradeDTO> gradeDTOS = new ArrayList<>();
+        for (Grade grade : grades){
+            gradeDTOS.add(new GradeDTO(grade.getCourse().getName(), grade.getGrade()* 100 + "%"));
+        }
+
         model.addAttribute("courses", coursesToReturn);
+        model.addAttribute("grades", gradeDTOS);
         return "start"; //view
     }
 }

src/main/java/com/wmi/lti/model/course/CourseRepository.java

@@ -4,6 +4,6 @@ import org.springframework.data.jpa.repository.JpaRepository;
 
 public interface CourseRepository extends JpaRepository<Course, Long> {
 
-
+        Course findFirstByName(String name);
 
 }

src/main/java/com/wmi/lti/model/grade/GradeDTO.java

@@ -0,0 +1,14 @@
+package com.wmi.lti.model.grade;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.Setter;
+
+@AllArgsConstructor
+@Getter
+@Setter
+public class GradeDTO {
+
+    private String courseName;
+    private String score;
+}

src/main/java/com/wmi/lti/model/grade/GradeRepository.java

@@ -1,6 +1,14 @@
 package com.wmi.lti.model.grade;
 
+import com.wmi.lti.model.course.Course;
+import com.wmi.lti.model.user.User;
 import org.springframework.data.jpa.repository.JpaRepository;
 
+import java.util.List;
+import java.util.Optional;
+
 public interface GradeRepository extends JpaRepository<Grade, Long> {
+    Optional<Grade> findGradeByCourseAndUser(Course course, User user);
+
+    List<Grade> findAllByUser(User user);
 }

src/main/resources/application.properties

@@ -1,5 +1,5 @@
 spring.jpa.hibernate.ddl-auto=update
-spring.datasource.url=jdbc:mysql://localhost:3306/lti
+spring.datasource.url=jdbc:mysql://localhost:3307/lti
 spring.datasource.username=lti
 spring.datasource.password=YnBDC0hqqhKaxt94
 

src/main/resources/templates/start.html

@@ -10,6 +10,23 @@
 </head>
 <body>
 
+<style>
+table {
+  border-collapse: collapse;
+  width: 100%;
+}
+
+td, th {
+  border: 1px solid #dddddd;
+  text-align: left;
+  padding: 8px;
+}
+
+tr:nth-child(even) {
+  background-color: #dddddd;
+}
+</style>
+
 <tr th:each="course: ${courses}">
         <form target = "_blank" th:action="${course.url}" method="POST">
             <th:block th:each="parameter : ${course.signedParameters}">
@@ -24,5 +41,23 @@
 <form th:action="@{/courses/addCourse}" method="GET">
     <div><input type="submit" value="Add new content"/></div>
 </form>
+
+<br><br><br>
+<H3>Grades</H3>
+
+<table>
+    <tr>
+        <th>Course</th>
+        <th>Grade</th>
+    </tr>
+    <th:block th:each="grade: ${grades}">
+
+        <tr>
+            <td th:text="${grade.courseName}">...</td>
+            <td th:text="${grade.score}">...</td>
+        </tr>
+    </th:block>
+</table>
+
 </body>
 </html>