Checkpoint - group controller needs to be fixed

restservice/pom.xml

@@ -31,6 +31,12 @@
       <scope>test</scope>
     </dependency>
 
+    <dependency>
+      <groupId>io.vavr</groupId>
+      <artifactId>vavr</artifactId>
+      <version>0.9.0</version>
+    </dependency>
+
     <dependency>
       <groupId>org.apache.httpcomponents</groupId>
       <artifactId>httpclient</artifactId>

restservice/src/main/java/com/plannaplan/controllers/GroupController.java

@@ -1,12 +1,12 @@
 package com.plannaplan.controllers;
 
-import java.util.ArrayList;
-import java.util.Dictionary;
-import java.util.Hashtable;
 import java.util.List;
 
 import com.plannaplan.App;
 import com.plannaplan.entities.Groups;
+import com.plannaplan.responses.mappers.GroupsMappers;
+import com.plannaplan.responses.models.DefaultGroupResponse;
+import com.plannaplan.responses.models.WithCapacityGroupResponse;
 import com.plannaplan.services.GroupService;
 
 import org.springframework.beans.factory.annotation.Autowired;
@@ -18,6 +18,8 @@ import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
+import io.vavr.control.Either;
+
 @RestController
 @CrossOrigin
 @RequestMapping("/api/" + App.API_VERSION + "/groups")
@@ -26,26 +28,12 @@ public class GroupController {
     private GroupService groupService;
 
     @GetMapping("/getCourseGroups")
-    public ResponseEntity<List<Dictionary<String, Object>>> getCourses(@RequestParam("id") Long id,
+    public ResponseEntity<Either<List<WithCapacityGroupResponse>, List<DefaultGroupResponse>>> getCourses(
-            @RequestParam(name = "capacity", defaultValue = "true") Boolean capacity) {
+            @RequestParam("id") Long id, @RequestParam(name = "capacity", defaultValue = "true") Boolean capacity) {
         List<Groups> groups = this.groupService.getGroupsByCourse(id);
-        List<Dictionary<String, Object>> response = new ArrayList<>();
-
-        for (Groups g : groups) {
-            Dictionary<String, Object> group = new Hashtable<>();
-            group.put("id", g.getId());
-            group.put("day", g.getDay().label);
-            group.put("time", g.getTimeString());
-            group.put("lecturer", g.getLecturer().toString());
-            group.put("room", g.getRoom());
         if (capacity) {
-                group.put("capacity", g.getCapacity());
+            return new ResponseEntity<>(Either.left(GroupsMappers.mapToCapacityResponse(groups)), HttpStatus.OK);
         }
-            group.put("type", g.getType());
+        return new ResponseEntity<>(Either.right(GroupsMappers.mapToDefaultResponse(groups)), HttpStatus.OK);
-
-            response.add(group);
-        }
-
-        return new ResponseEntity<>(response, HttpStatus.OK);
     }
 }

restservice/src/main/java/com/plannaplan/responses/mappers/GroupsMappers.java

@@ -0,0 +1,20 @@
+package com.plannaplan.responses.mappers;
+
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+import com.plannaplan.entities.Groups;
+import com.plannaplan.responses.models.DefaultGroupResponse;
+import com.plannaplan.responses.models.WithCapacityGroupResponse;
+
+public class GroupsMappers {
+    public static List<DefaultGroupResponse> mapToDefaultResponse(List<Groups> groups) {
+        return groups.stream().filter(Objects::nonNull).map(DefaultGroupResponse::new).collect(Collectors.toList());
+    }
+
+    public static List<WithCapacityGroupResponse> mapToCapacityResponse(List<Groups> groups) {
+        return groups.stream().filter(Objects::nonNull).map(WithCapacityGroupResponse::new)
+                .collect(Collectors.toList());
+    }
+}

restservice/src/main/java/com/plannaplan/responses/models/DefaultGroupResponse.java

@@ -11,7 +11,6 @@ public class DefaultGroupResponse {
     private String time;
     private String lecturer;
     private String room;
-    private int capacity;
     private GroupType type;
 
     public DefaultGroupResponse(Groups group) {
@@ -20,7 +19,6 @@ public class DefaultGroupResponse {
         this.time = group.getTimeString() != null ? group.getTimeString() : "";
         this.lecturer = group.getLecturer() != null ? group.getLecturer().toString() : "";
         this.room = group.getRoom() != null ? group.getRoom() : "";
-        this.capacity = group.getCapacity();
         this.type = group.getType() != null ? group.getType() : null;
     }
 
@@ -32,10 +30,6 @@ public class DefaultGroupResponse {
         return type;
     }
 
-    public int getCapacity() {
-        return capacity;
-    }
-
     public String getRoom() {
         return room;
     }

restservice/src/main/java/com/plannaplan/responses/models/GetCurrentAssignmentsResponse.java

@@ -2,7 +2,7 @@ package com.plannaplan.responses.models;
 
 import com.plannaplan.entities.Assignment;
 
-public class GetCurrentAssignmentsResponse extends DefaultGroupResponse {
+public class GetCurrentAssignmentsResponse extends WithCapacityGroupResponse {
 
     public GetCurrentAssignmentsResponse(Assignment assignment) {
         super(assignment);

restservice/src/main/java/com/plannaplan/responses/models/WithCapacityGroupResponse.java

@@ -0,0 +1,23 @@
+package com.plannaplan.responses.models;
+
+import com.plannaplan.entities.Assignment;
+import com.plannaplan.entities.Groups;
+
+public class WithCapacityGroupResponse extends DefaultGroupResponse {
+
+    private int capacity;
+
+    public WithCapacityGroupResponse(Groups group) {
+        super(group);
+        this.capacity = group.getCapacity();
+    }
+
+    public WithCapacityGroupResponse(Assignment assignment) {
+        this(assignment.getGroup());
+    }
+
+    public int getCapacity() {
+        return capacity;
+    }
+
+}

restservice/src/test/java/com/plannaplan/responses/mappers/GroupsMappersTest.java

@@ -0,0 +1,35 @@
+package com.plannaplan.responses.mappers;
+
+import java.util.Arrays;
+import java.util.List;
+
+import com.plannaplan.entities.Groups;
+import com.plannaplan.entities.Lecturer;
+import com.plannaplan.responses.models.DefaultGroupResponse;
+import com.plannaplan.responses.models.WithCapacityGroupResponse;
+import com.plannaplan.types.WeekDay;
+
+import org.junit.Test;
+
+public class GroupsMappersTest {
+    @Test
+    public void shouldMapToResponseIncludingCapacity() {
+        final List<Groups> gropus = Arrays.asList(
+                new Groups(42, "A4-1", null, 520, WeekDay.MONDAY, new Lecturer("krul.", "Wladyslaw", "Potocki")));
+        final List<WithCapacityGroupResponse> response = GroupsMappers.mapToCapacityResponse(gropus);
+
+        assert (response.get(0).getCapacity() == 42);
+        assert (response.get(0) instanceof WithCapacityGroupResponse);
+        assert (response.size() == 1);
+    }
+
+    @Test
+    public void shouldMapToResponseWiothoutCapacity() {
+        final List<Groups> gropus = Arrays.asList(
+                new Groups(42, "A4-1", null, 520, WeekDay.MONDAY, new Lecturer("krul.", "Wladyslaw", "Potocki")));
+        final List<DefaultGroupResponse> response = GroupsMappers.mapToDefaultResponse(gropus);
+
+        assert (response.get(0) instanceof DefaultGroupResponse);
+        assert (response.size() == 1);
+    }
+}

restservice/src/test/java/com/plannaplan/responses/models/DefaultGroupResponseTest.java

@@ -17,7 +17,6 @@ public class DefaultGroupResponseTest {
                 new Groups(42, "A4-1", null, 520, WeekDay.MONDAY, new Lecturer("krul.", "Wladyslaw", "Potocki")), null);
 
         final DefaultGroupResponse response = new DefaultGroupResponse(assignment);
-        assertTrue(response.getCapacity() == 42);
         assertTrue(response.getDay() == 0);
         assertTrue(response.getLecturer().equals("krul. Wladyslaw Potocki"));
         assertTrue(response.getRoom().equals("A4-1"));
@@ -31,7 +30,6 @@ public class DefaultGroupResponseTest {
                 new Lecturer("krul.", "Wladyslaw", "Potocki"));
 
         final DefaultGroupResponse response = new DefaultGroupResponse(group);
-        assertTrue(response.getCapacity() == 42);
         assertTrue(response.getDay() == 0);
         assertTrue(response.getLecturer().equals("krul. Wladyslaw Potocki"));
         assertTrue(response.getRoom().equals("A4-1"));
@@ -44,12 +42,10 @@ public class DefaultGroupResponseTest {
         final Groups group = new Groups();
 
         final DefaultGroupResponse response = new DefaultGroupResponse(group);
-        assertTrue(response.getCapacity() == 0);
         assertTrue(response.getDay() == -1);
         assertTrue(response.getLecturer().equals(""));
         assertTrue(response.getRoom().equals(""));
         assertTrue(response.getTime().equals("0.00"));
         assertTrue(response.getType() == null);
     }
-
 }

restservice/src/test/java/com/plannaplan/responses/models/WithCapacityGroupResponseTest.java

@@ -0,0 +1,55 @@
+package com.plannaplan.responses.models;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import com.plannaplan.entities.Assignment;
+import com.plannaplan.entities.Groups;
+import com.plannaplan.entities.Lecturer;
+import com.plannaplan.types.GroupType;
+import com.plannaplan.types.WeekDay;
+
+import org.junit.Test;
+
+public class WithCapacityGroupResponseTest {
+    @Test
+    public void shouldMapAssignmentClassToResponse() {
+        final Assignment assignment = new Assignment(
+                new Groups(42, "A4-1", null, 520, WeekDay.MONDAY, new Lecturer("krul.", "Wladyslaw", "Potocki")), null);
+
+        final WithCapacityGroupResponse response = new WithCapacityGroupResponse(assignment);
+        assertTrue(response.getCapacity() == 42);
+        assertTrue(response.getDay() == 0);
+        assertTrue(response.getLecturer().equals("krul. Wladyslaw Potocki"));
+        assertTrue(response.getRoom().equals("A4-1"));
+        assertTrue(response.getTime().equals("8.40"));
+        assertTrue(response.getType() == GroupType.CLASS);
+    }
+
+    @Test
+    public void shouldMapGroupClassToResponse() {
+        final Groups group = new Groups(42, "A4-1", null, 520, WeekDay.MONDAY,
+                new Lecturer("krul.", "Wladyslaw", "Potocki"));
+
+        final WithCapacityGroupResponse response = new WithCapacityGroupResponse(group);
+        assertTrue(response.getCapacity() == 42);
+        assertTrue(response.getDay() == 0);
+        assertTrue(response.getLecturer().equals("krul. Wladyslaw Potocki"));
+        assertTrue(response.getRoom().equals("A4-1"));
+        assertTrue(response.getTime().equals("8.40"));
+        assertTrue(response.getType() == GroupType.CLASS);
+    }
+
+    @Test
+    public void shouldMapEmptyGroupClassToResponse() {
+        final Groups group = new Groups();
+
+        final WithCapacityGroupResponse response = new WithCapacityGroupResponse(group);
+        assertTrue(response.getCapacity() == 0);
+        assertTrue(response.getDay() == -1);
+        assertTrue(response.getLecturer().equals(""));
+        assertTrue(response.getRoom().equals(""));
+        assertTrue(response.getTime().equals("0.00"));
+        assertTrue(response.getType() == null);
+    }
+
+}