Merge pull request 'group-count' (#25) from group-count into master

Reviewed-on: http://git.plannaplan.pl/filipizydorczyk/backend/pulls/25

buisnesslogic/src/main/java/com/plannaplan/entities/Assignment.java

@@ -18,12 +18,17 @@ public class Assignment {
     @ManyToOne
     @JoinColumn(name = "commision_id")
     private Commision commision;
+    private boolean isPastAssignment;
 
-    public Assignment(Groups group, Commision commision) {
+    public Assignment(Groups group, Commision commision, boolean isPastAssignment) {
         this.commision = commision;
         this.group = group;
     }
 
+    public Assignment(Groups group, Commision commision) {
+        this(group, commision, false);
+    }
+
     public Assignment() {
     }
 
@@ -34,4 +39,12 @@ public class Assignment {
     public Groups getGroup() {
         return this.group;
     }
+
+    public boolean isPastAssignment() {
+        return isPastAssignment;
+    }
+
+    public void setPastAssignment(boolean isPastAssignment) {
+        this.isPastAssignment = isPastAssignment;
+    }
 }

buisnesslogic/src/main/java/com/plannaplan/entities/Commision.java

@@ -4,6 +4,7 @@ import java.sql.Timestamp;
 import java.util.List;
 
 import javax.persistence.Entity;
+import javax.persistence.FetchType;
 import javax.persistence.GeneratedValue;
 import javax.persistence.GenerationType;
 import javax.persistence.Id;
@@ -21,9 +22,14 @@ public class Commision {
     private User commisionOwner;
     private Timestamp commisionDate;
 
-    @OneToMany(mappedBy = "commision")
+    @OneToMany(mappedBy = "commision", fetch = FetchType.EAGER)
     private List<Assignment> assignments;
 
+    /**
+     * 
+     * @param user owner of commission. Can not be null otherwise saving commision
+     *             will fail.
+     */
     public Commision(User user) {
         this.commisionDate = new Timestamp(System.currentTimeMillis());
         this.commisionOwner = user;
@@ -44,4 +50,8 @@ public class Commision {
         return commisionOwner;
     }
 
+    public List<Assignment> getAssignments() {
+        return this.assignments;
+    }
+
 }

buisnesslogic/src/main/java/com/plannaplan/repositories/GroupRepository.java

@@ -18,4 +18,18 @@ public interface GroupRepository extends JpaRepository<Groups, Long> {
     @Query("FROM Groups WHERE course_id = ?1")
     List<Groups> getByCourse(@Param("id") Long id);
 
+    @Query("SELECT COUNT(*) AS assinged_times FROM Assignment WHERE isPastAssignment=false GROUP BY group HAVING group_id=?1")
+    Optional<Number> getAssignedAmount(Long groupId);
+
+    /**
+     * PLAIN SQL QUERY: SELECT group_id, COUNT(*) assinged_times FROM assignment
+     * WHERE is_past_assignment=0 GROUP BY group_id HAVING group_id IN (:ids)")
+     * 
+     * @param groupIds list of groups ids
+     * @return list of objects arrays where first object is Groups instance and
+     *         second is Long that is taken places value
+     */
+    @Query("SELECT group, COUNT(*) AS assinged_times FROM Assignment a WHERE a.isPastAssignment=false GROUP BY a.group HAVING group_id IN (:ids)")
+    List<Object[]> getAssignedAmounts(@Param("ids") List<Long> groupIds);
+
 }

buisnesslogic/src/main/java/com/plannaplan/services/AssignmentService.java

@@ -1,6 +1,7 @@
 package com.plannaplan.services;
 
 import java.util.List;
+import java.util.Optional;
 
 import com.plannaplan.entities.Assignment;
 import com.plannaplan.entities.Commision;
@@ -17,8 +18,8 @@ public class AssignmentService {
     public AssignmentService() {
     }
 
-    public void save(Assignment assignment) {
-        this.repo.save(assignment);
+    public Assignment save(Assignment assignment) {
+        return this.repo.save(assignment);
     }
 
     public List<Assignment> getCommisionAssignments(Commision com) {
@@ -28,4 +29,8 @@ public class AssignmentService {
     public long getAssignmentsAmmount() {
         return this.repo.count();
     }
+
+    public Optional<Assignment> getById(Long id) {
+        return this.repo.findById(id);
+    }
 }

buisnesslogic/src/main/java/com/plannaplan/services/CommisionService.java

@@ -5,6 +5,7 @@ import java.util.Optional;
 
 import com.plannaplan.entities.Commision;
 import com.plannaplan.entities.User;
+import com.plannaplan.repositories.AssignmentRepository;
 import com.plannaplan.repositories.CommisionRepository;
 
 import org.springframework.beans.factory.annotation.Autowired;
@@ -14,11 +15,21 @@ import org.springframework.stereotype.Service;
 public class CommisionService {
     @Autowired
     private CommisionRepository repo;
+    @Autowired
+    private AssignmentRepository aRepository;
 
     public CommisionService() {
     }
 
     public Commision save(Commision commision) {
+        Optional<Commision> lastCommision = this.getNewestCommision(commision.getCommisionOwner());
+        if (lastCommision.isPresent()) {
+            final Commision lastCom = lastCommision.get();
+            lastCom.getAssignments().forEach(assignment -> {
+                assignment.setPastAssignment(true);
+                this.aRepository.save(assignment);
+            });
+        }
         this.repo.save(commision);
         return commision;
 

buisnesslogic/src/main/java/com/plannaplan/services/GroupService.java

@@ -1,7 +1,11 @@
 package com.plannaplan.services;
 
+import java.util.HashMap;
 import java.util.List;
+import java.util.Objects;
 import java.util.Optional;
+import java.util.stream.Collectors;
+import java.util.function.Function;
 
 import com.plannaplan.entities.Groups;
 import com.plannaplan.repositories.GroupRepository;
@@ -26,8 +30,7 @@ public class GroupService {
     }
 
     public Groups save(Groups group) {
-        this.repo.save(group);
-        return group;
+        return this.repo.save(group);
     }
 
     public void delete(Groups groups) {
@@ -51,4 +54,30 @@ public class GroupService {
         return Optional.empty();
 
     }
+
+    /**
+     * 
+     * @param groups list of groups you want to get taken places ammount
+     * @return HashMap<Long, Integer> where Long is group id and Integer is how many
+     *         places in gorup is already taken
+     */
+    public HashMap<Long, Integer> getTakenPlaces(List<Groups> groups) {
+        HashMap<Long, Integer> response = new HashMap<>();
+
+        List<Object[]> respoonses = this.repo
+                .getAssignedAmounts(groups.stream().filter(Objects::nonNull).map(new Function<Groups, Long>() {
+                    @Override
+                    public Long apply(Groups p) {
+                        final Long id = p.getId();
+                        response.put(id, 0);
+                        return id;
+                    }
+                }).collect(Collectors.toList()));
+
+        for (Object[] element : respoonses) {
+            response.put(((Groups) element[0]).getId(), ((Long) element[1]).intValue());
+        }
+
+        return response;
+    }
 }

buisnesslogic/src/main/java/com/plannaplan/services/UserService.java

@@ -31,8 +31,8 @@ public class UserService {
         return token;
     }
 
-    public void save(User user) {
-        this.repo.save(user);
+    public User save(User user) {
+        return this.repo.save(user);
     }
 
     public User getUserByEmail(String email) throws UserNotFoundException {

buisnesslogic/src/test/java/com/plannaplan/repositories/GroupRepositoryTest.java

@@ -0,0 +1,106 @@
+package com.plannaplan.repositories;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import static org.junit.Assert.assertTrue;
+
+import java.util.List;
+
+import com.plannaplan.entities.Assignment;
+import com.plannaplan.entities.Commision;
+import com.plannaplan.entities.Groups;
+import com.plannaplan.entities.User;
+import com.plannaplan.services.AssignmentService;
+import com.plannaplan.services.CommisionService;
+import com.plannaplan.services.GroupService;
+import com.plannaplan.services.UserService;
+import com.plannaplan.types.UserRoles;
+import com.plannaplan.types.WeekDay;
+
+import org.junit.Test;
+
+import org.junit.runner.RunWith;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+@ContextConfiguration
+public class GroupRepositoryTest {
+        @Autowired
+        private GroupRepository repository;
+        @Autowired
+        private AssignmentService assignmentService;
+        @Autowired
+        private GroupService groupService;
+        @Autowired
+        private UserService userService;
+
+        @Autowired
+        private CommisionService commisionService;
+
+        @Test
+        public void shouldReturnGroupAssignmentTimes() throws InterruptedException {
+                final Groups testGroup = groupService.save(new Groups(43, "A-41", null, 235, WeekDay.MONDAY, null));
+                int startGroupAmmount = this.repository.getAssignedAmount(testGroup.getId()).orElse(Integer.valueOf(0))
+                                .intValue();
+
+                final User user = this.userService.save(new User("Luis", "Vita",
+                                "shouldReturnGroupAssignmentTimes@grouprepository.test", UserRoles.STUDENT));
+                final Commision commision = this.commisionService.save(new Commision(user));
+
+                this.assignmentService.save(new Assignment(testGroup, commision));
+                Thread.sleep(1000);
+
+                int afterAssignedGroupAmmount = this.repository.getAssignedAmount(testGroup.getId())
+                                .orElse(Integer.valueOf(0)).intValue();
+
+                assertTrue(afterAssignedGroupAmmount > startGroupAmmount);
+
+                final Commision recommision = this.commisionService.save(new Commision(user));
+                this.assignmentService.save(new Assignment(testGroup, recommision));
+
+                Thread.sleep(1000);
+
+                int afterreAssignedGroupAmmount = this.repository.getAssignedAmount(testGroup.getId())
+                                .orElse(Integer.valueOf(0)).intValue();
+
+                assertTrue(afterAssignedGroupAmmount == afterreAssignedGroupAmmount);
+
+                this.commisionService.save(new Commision(user));
+
+                Thread.sleep(1000);
+
+                int afterdeAssignedGroupAmmount = this.repository.getAssignedAmount(testGroup.getId())
+                                .orElse(Integer.valueOf(0)).intValue();
+
+                assertTrue(afterdeAssignedGroupAmmount < afterreAssignedGroupAmmount);
+
+        }
+
+        @Test
+        public void shouldReturnGroupAssignmentTimesList() throws InterruptedException {
+                final Groups testGroup = groupService.save(new Groups(43, "A-41", null, 645, WeekDay.MONDAY, null));
+                final Groups testGroup2 = groupService.save(new Groups(433, "A-41", null, 235, WeekDay.TUESDAY, null));
+                final Groups testGroup3 = groupService.save(new Groups(23, "A-41", null, 340, WeekDay.MONDAY, null));
+                final User user = this.userService.save(new User("Dare", "Oc",
+                                "shouldReturnGroupAssignmentTimesList@grouprepository.test", UserRoles.STUDENT));
+                final Commision commision = this.commisionService.save(new Commision(user));
+
+                this.assignmentService.save(new Assignment(testGroup, commision));
+                this.assignmentService.save(new Assignment(testGroup2, commision));
+                this.assignmentService.save(new Assignment(testGroup3, commision));
+
+                Thread.sleep(1000);
+
+                List<Object[]> response = this.repository
+                                .getAssignedAmounts(List.of(testGroup.getId(), testGroup2.getId(), testGroup3.getId()));
+
+                assertTrue("Response should have size 3", response.size() == 3);
+                assertTrue("Instance of firest element should be Group", response.get(0)[0] instanceof Groups);
+                assertTrue("Instance of firest element should be Long", response.get(0)[1] instanceof Long);
+
+        }
+
+}

buisnesslogic/src/test/java/com/plannaplan/services/AssignmentServiceTest.java

@@ -11,8 +11,9 @@ import java.util.List;
 
 import com.plannaplan.entities.Assignment;
 import com.plannaplan.entities.Commision;
+import com.plannaplan.entities.User;
+import com.plannaplan.types.UserRoles;
 
-import org.junit.Before;
 import org.junit.Test;
 
 import org.junit.runner.RunWith;
@@ -26,24 +27,31 @@ public class AssignmentServiceTest {
     private AssignmentService service;
     @Autowired
     private CommisionService comServie;
-    private Commision com;
-
-    @Before
-    public void init() {
-        this.com = new Commision();
-        this.comServie.save(this.com);
-    }
+    @Autowired
+    private UserService userService;
 
     @Test
     public void shouldSaveAssignment() {
+        final User user = new User("Gibi", "Kovalsky", "shouldSaveAssignment@assignmentservice.test",
+                UserRoles.STUDENT);
+        this.userService.save(user);
+
         long beginState = this.service.getAssignmentsAmmount();
-        this.addAssignmentToCommision(this.com);
+        Commision com = new Commision(user);
+        this.comServie.save(com);
+        this.addAssignmentToCommision(com);
         assertTrue("Assign ammount should increase", this.service.getAssignmentsAmmount() > beginState);
     }
 
     @Test
     public void shouldGetCommisionAssignments() {
-        this.addAssignmentToCommision(this.com);
+        final User user = new User("Gibi", "Kovalsky", "shouldGetCommisionAssignments@assignmentservice.test",
+                UserRoles.STUDENT);
+        this.userService.save(user);
+        Commision com = new Commision(user);
+        this.comServie.save(com);
+        this.addAssignmentToCommision(com);
+
         final List<Assignment> response = this.service.getCommisionAssignments(com);
         assertTrue("Returned list size should be 1", response.size() == 1);
     }

buisnesslogic/src/test/java/com/plannaplan/services/CommisionServiceTest.java

@@ -7,8 +7,10 @@ import org.springframework.test.context.junit4.SpringRunner;
 
 import static org.junit.Assert.assertTrue;
 
+import com.plannaplan.entities.Assignment;
 import com.plannaplan.entities.Commision;
 import com.plannaplan.entities.User;
+import com.plannaplan.types.UserRoles;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -24,10 +26,15 @@ public class CommisionServiceTest {
     @Autowired
     private UserService userService;
 
+    @Autowired
+    private AssignmentService assignmentService;
+
     @Test
     public void shouldSaveCommision() {
+        User usr = new User();
+        this.userService.save(usr);
         long beginState = this.service.getCommisionsAmmount();
-        this.service.save(new Commision());
+        this.service.save(new Commision(usr));
         assertTrue("Commision ammount should have changed", this.service.getCommisionsAmmount() > beginState);
     }
 
@@ -57,4 +64,31 @@ public class CommisionServiceTest {
         assertTrue("Wrong commision was returned", result.getId().equals(newestCommision.getId()));
     }
 
+    @Test
+    public void shouldMarkAssignmentsOfPreviousCommisionPast() {
+        final User usr = new User("Trevor", "Hammolt",
+                "shouldMarkAssignmentsOfPreviousCommisionPast@commisionservice.test", UserRoles.STUDENT);
+        this.userService.save(usr);
+
+        final Commision firstCommision = new Commision(usr);
+        this.service.save(firstCommision);
+
+        Assignment firstCommisionAssignment = this.assignmentService.save(new Assignment(null, firstCommision));
+
+        assertTrue("FirstCommisionAssignment should be flaged as present assignment",
+                !firstCommisionAssignment.isPastAssignment());
+
+        final Commision secondCommision = new Commision(usr);
+        this.service.save(secondCommision);
+
+        Assignment secondCommisionAssignment = new Assignment(null, secondCommision);
+        this.assignmentService.save(secondCommisionAssignment);
+
+        assertTrue("SecondCommisionAssignment should be flaged as present assignment",
+                !secondCommisionAssignment.isPastAssignment());
+        assertTrue("FirstCommisionAssignment should be flaged as past assignment",
+                this.assignmentService.getById(firstCommisionAssignment.getId()).get().isPastAssignment());
+
+    }
+
 }

buisnesslogic/src/test/java/com/plannaplan/services/GroupServiceTest.java

@@ -2,7 +2,15 @@ package com.plannaplan.services;
 
 import static org.junit.Assert.assertTrue;
 
+import java.util.HashMap;
+import java.util.List;
+
+import com.plannaplan.entities.Assignment;
+import com.plannaplan.entities.Commision;
 import com.plannaplan.entities.Groups;
+import com.plannaplan.entities.User;
+import com.plannaplan.types.UserRoles;
+import com.plannaplan.types.WeekDay;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -18,6 +26,12 @@ public class GroupServiceTest {
 
     @Autowired
     private GroupService groupService;
+    @Autowired
+    private AssignmentService assignmentService;
+    @Autowired
+    private CommisionService commisionService;
+    @Autowired
+    private UserService userService;
 
     @Test
     public void createAndDeleteGroup() {
@@ -31,4 +45,27 @@ public class GroupServiceTest {
         groupService.delete(group);
         assertTrue(this.groupService.getGroupsAmmount() == startAmmount);
     }
+
+    @Test
+    public void shouldGetGroupsAssignmentsAmmounts() throws InterruptedException {
+        final Groups testGroup = groupService.save(new Groups(43, "A-41", null, 645, WeekDay.MONDAY, null));
+        final Groups testGroup2 = groupService.save(new Groups(433, "A-41", null, 235, WeekDay.TUESDAY, null));
+        final Groups testGroup3 = groupService.save(new Groups(23, "A-41", null, 340, WeekDay.MONDAY, null));
+        final User user = this.userService.save(
+                new User("Dare", "Oc", "shouldReturnGroupAssignmentTimesList@grouprepository.test", UserRoles.STUDENT));
+        final Commision commision = this.commisionService.save(new Commision(user));
+
+        this.assignmentService.save(new Assignment(testGroup, commision));
+        this.assignmentService.save(new Assignment(testGroup2, commision));
+        this.assignmentService.save(new Assignment(testGroup3, commision));
+
+        Thread.sleep(1000);
+
+        HashMap<Long, Integer> response = this.groupService.getTakenPlaces(List.of(testGroup, testGroup2, testGroup3));
+
+        assertTrue(response.size() == 3);
+        assertTrue(response.get(testGroup.getId()) == 1);
+        assertTrue(response.get(testGroup2.getId()) == 1);
+        assertTrue(response.get(testGroup3.getId()) == 1);
+    }
 }

buisnesslogic/src/test/resources/application.properties

@@ -7,5 +7,6 @@ spring.jpa.open-in-view=true
 spring.jpa.hibernate.ddl-auto=create-drop
 spring.jackson.serialization.fail-on-empty-beans=false
 spring.main.allow-bean-definition-overriding=true
+spring.jackson.default-property-inclusion = NON_NULL
 
 server.port=1285

restservice/src/main/java/com/plannaplan/App.java

@@ -33,7 +33,7 @@ public class App {
                 filip.setEmail("filizy@st.amu.edu.pl");
                 filip.setName("Filip");
                 filip.setSurname("Izydorczyk");
-                filip.setRole(UserRoles.ADMIN);
+                filip.setRole(UserRoles.STUDENT);
                 this.userService.save(filip);
 
                 User hub = new User();

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

@@ -1,5 +1,6 @@
 package com.plannaplan.controllers;
 
+import java.util.HashMap;
 import java.util.List;
 
 import com.plannaplan.App;
@@ -37,8 +38,20 @@ public class GroupController {
     @ApiOperation(value = "Return list of lectures and classes (if present) given course")
     public ResponseEntity<CourseWithGroupsResponse<? extends GroupDefaultResponse>> getCourses(
             @PathVariable(name = "id") Long id,
-            @RequestParam(name = "capacity", defaultValue = "true") @ApiParam(value = "Boolean if we want to have capacity field in response") Boolean capacity) {
+            @RequestParam(name = "capacity", defaultValue = "true") @ApiParam(value = "Boolean if we want to have capacity field in response") Boolean capacity,
+            @RequestParam(name = "takenPlaces", defaultValue = "false") @ApiParam(value = "Boolean if we want to have respoonse with information about taken places by other students") Boolean takenPlaces) {
         List<Groups> groups = this.groupService.getGroupsByCourse(id);
+
+        if (takenPlaces) {
+            HashMap<Long, Integer> ammounts = this.groupService.getTakenPlaces(groups);
+            if (capacity) {
+                return new ResponseEntity<>(GroupsMappers.mapToGetCourseGroupsWithCapacityResponse(groups, ammounts),
+                        HttpStatus.OK);
+            }
+            return new ResponseEntity<>(GroupsMappers.mapToGetCourseGroupsDefaultResponse(groups, ammounts),
+                    HttpStatus.OK);
+        }
+
         if (capacity) {
             return new ResponseEntity<>(GroupsMappers.mapToGetCourseGroupsWithCapacityResponse(groups), HttpStatus.OK);
         }

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

@@ -1,8 +1,10 @@
 package com.plannaplan.responses.mappers;
 
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Objects;
+import java.util.function.Function;
 import java.util.stream.Collectors;
 
 import com.plannaplan.entities.Groups;
@@ -12,47 +14,100 @@ import com.plannaplan.responses.models.GroupWithCapacityResponse;
 import com.plannaplan.types.GroupType;
 
 public class GroupsMappers {
+    public static List<GroupDefaultResponse> mapToDefaultResponse(List<Groups> groups, HashMap<Long, Integer> taken) {
+        return groups.stream().filter(Objects::nonNull).map(new Function<Groups, GroupDefaultResponse>() {
+            @Override
+            public GroupDefaultResponse apply(Groups p) {
+                if (taken != null) {
+                    return new GroupDefaultResponse(p, taken.get(p.getId()));
+                } else {
+                    return new GroupDefaultResponse(p);
+                }
+            }
+        }).collect(Collectors.toList());
+    }
+
     public static List<GroupDefaultResponse> mapToDefaultResponse(List<Groups> groups) {
-        return groups.stream().filter(Objects::nonNull).map(GroupDefaultResponse::new).collect(Collectors.toList());
+        return GroupsMappers.mapToDefaultResponse(groups, null);
+    }
+
+    public static List<GroupWithCapacityResponse> mapToCapacityResponse(List<Groups> groups,
+            HashMap<Long, Integer> taken) {
+        return groups.stream().filter(Objects::nonNull).map(new Function<Groups, GroupWithCapacityResponse>() {
+            @Override
+            public GroupWithCapacityResponse apply(Groups p) {
+                if (taken != null) {
+                    return new GroupWithCapacityResponse(p, taken.get(p.getId()));
+                } else {
+                    return new GroupWithCapacityResponse(p);
+                }
+            }
+        }).collect(Collectors.toList());
     }
 
     public static List<GroupWithCapacityResponse> mapToCapacityResponse(List<Groups> groups) {
-        return groups.stream().filter(Objects::nonNull).map(GroupWithCapacityResponse::new)
-                .collect(Collectors.toList());
+        return GroupsMappers.mapToCapacityResponse(groups, null);
     }
-    
-    public static CourseWithGroupsResponse<GroupDefaultResponse> mapToGetCourseGroupsDefaultResponse (List<Groups> groups){
+
+    public static CourseWithGroupsResponse<GroupDefaultResponse> mapToGetCourseGroupsDefaultResponse(
+            List<Groups> groups, HashMap<Long, Integer> taken) {
 
         List<GroupDefaultResponse> lectures = new ArrayList<>();
         List<GroupDefaultResponse> classes = new ArrayList<>();
 
         groups.stream().forEach(group -> {
             if (group.getType() == GroupType.CLASS) {
-                classes.add(new GroupDefaultResponse(group));
+                if (taken != null) {
+                    classes.add(new GroupDefaultResponse(group, taken.get(group.getId())));
+                } else {
+                    classes.add(new GroupDefaultResponse(group));
+                }
             } else {
-                lectures.add(new GroupDefaultResponse(group));
+                if (taken != null) {
+                    lectures.add(new GroupDefaultResponse(group, taken.get(group.getId())));
+                } else {
+                    lectures.add(new GroupDefaultResponse(group));
+                }
             }
         });
 
-
         return new CourseWithGroupsResponse<>(classes, lectures);
     }
 
-    public static CourseWithGroupsResponse<GroupWithCapacityResponse> mapToGetCourseGroupsWithCapacityResponse (List<Groups> groups){
+    public static CourseWithGroupsResponse<GroupDefaultResponse> mapToGetCourseGroupsDefaultResponse(
+            List<Groups> groups) {
+        return GroupsMappers.mapToGetCourseGroupsDefaultResponse(groups, null);
+    }
+
+    public static CourseWithGroupsResponse<GroupWithCapacityResponse> mapToGetCourseGroupsWithCapacityResponse(
+            List<Groups> groups, HashMap<Long, Integer> taken) {
 
         List<GroupWithCapacityResponse> lectures = new ArrayList<>();
         List<GroupWithCapacityResponse> classes = new ArrayList<>();
 
         groups.stream().forEach(group -> {
             if (group.getType() == GroupType.CLASS) {
-                classes.add(new GroupWithCapacityResponse(group));
+                if (taken != null) {
+                    classes.add(new GroupWithCapacityResponse(group, taken.get(group.getId())));
+                } else {
+                    classes.add(new GroupWithCapacityResponse(group));
+                }
+
             } else {
-                lectures.add(new GroupWithCapacityResponse(group));
+                if (taken != null) {
+                    lectures.add(new GroupWithCapacityResponse(group, taken.get(group.getId())));
+                } else {
+                    lectures.add(new GroupWithCapacityResponse(group));
+                }
             }
         });
 
-
         return new CourseWithGroupsResponse<>(classes, lectures);
     }
 
+    public static CourseWithGroupsResponse<GroupWithCapacityResponse> mapToGetCourseGroupsWithCapacityResponse(
+            List<Groups> groups) {
+        return GroupsMappers.mapToGetCourseGroupsWithCapacityResponse(groups, null);
+    }
+
 }

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

@@ -1,5 +1,6 @@
 package com.plannaplan.responses.models;
 
+import com.fasterxml.jackson.annotation.JsonInclude;
 import com.plannaplan.entities.Assignment;
 import com.plannaplan.entities.Groups;
 import com.plannaplan.types.GroupType;
@@ -7,6 +8,7 @@ import com.plannaplan.types.GroupType;
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
 
+@JsonInclude(JsonInclude.Include.NON_NULL)
 @ApiModel(description = "Response shows information about given group.", value = "GroupDefaultResponse")
 public class GroupDefaultResponse {
 
@@ -28,6 +30,9 @@ public class GroupDefaultResponse {
     @ApiModelProperty(value = "Value shows kind of group. The types are LECTURE or CLASS.")
     private GroupType type;
 
+    @ApiModelProperty(value = "Value shows how many places is already taken by other students.")
+    private Integer takenPlaces;
+
     public GroupDefaultResponse(Groups group) {
         this.id = group.getId() != null ? group.getId() : null;
         this.day = group.getDay() != null ? group.getDay().label : -1;
@@ -37,6 +42,11 @@ public class GroupDefaultResponse {
         this.type = group.getType() != null ? group.getType() : null;
     }
 
+    public GroupDefaultResponse(Groups group, int takenPlaces) {
+        this(group);
+        this.takenPlaces = takenPlaces;
+    }
+
     public GroupDefaultResponse(Assignment assignment) {
         this(assignment.getGroup());
     }
@@ -65,4 +75,8 @@ public class GroupDefaultResponse {
         return id;
     }
 
+    public Integer getTakenPlaces() {
+        return this.takenPlaces;
+    }
+
 }

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

@@ -14,10 +14,19 @@ public class GroupWithCapacityResponse extends GroupDefaultResponse {
         this.capacity = group.getCapacity();
     }
 
+    public GroupWithCapacityResponse(Groups group, int takenPlaces) {
+        super(group, takenPlaces);
+        this.capacity = group.getCapacity();
+    }
+
     public GroupWithCapacityResponse(Assignment assignment) {
         this(assignment.getGroup());
     }
 
+    public GroupWithCapacityResponse(Assignment assignment, int takenPlaces) {
+        this(assignment.getGroup(), takenPlaces);
+    }
+
     public int getCapacity() {
         return capacity;
     }

restservice/src/test/java/com/plannaplan/controllers/ConfigControllerTest.java

@@ -28,7 +28,6 @@ public class ConfigControllerTest extends AbstractControllerTest {
 
     private static final String FILE_NAME = "Zajecia.xlsx";
     private static final String CONFIG_ENDPOINT = "/api/v1/configurator/config";
-    private static final String TEST_MAIL = "notexisting@mail.domain";
 
     @Autowired
     private UserService service;
@@ -45,12 +44,13 @@ public class ConfigControllerTest extends AbstractControllerTest {
 
     @Test
     public void shouldReturnOKAuthorized() throws Exception {
-        final User usr = new User(null, null, TEST_MAIL, UserRoles.ADMIN);
+        final String mail = "shouldReturnOKAuthorized@ConfigController.test";
+        final User usr = new User(null, null, mail, UserRoles.ADMIN);
         this.service.save(usr);
 
         final InputStream inputStream = getClass().getClassLoader().getResourceAsStream(FILE_NAME);
         final MockMultipartFile file = new MockMultipartFile("file", inputStream);
-        final String token = this.service.login(TEST_MAIL);
+        final String token = this.service.login(mail);
 
         MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
         mockMvc.perform(multipart(CONFIG_ENDPOINT).file(file).header("Authorization", "Bearer " + token))
@@ -58,4 +58,20 @@ public class ConfigControllerTest extends AbstractControllerTest {
 
     }
 
+    @Test
+    public void shouldReturnDenyNoAdminAuthorized() throws Exception {
+        final String mail = "shouldReturnDenyNoAdminAuthorized@ConfigController.test";
+        final User usr = new User(null, null, mail, UserRoles.TEST_USER);
+        this.service.save(usr);
+
+        final InputStream inputStream = getClass().getClassLoader().getResourceAsStream(FILE_NAME);
+        final MockMultipartFile file = new MockMultipartFile("file", inputStream);
+        final String token = this.service.login(mail);
+
+        MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(webApplicationContext).apply(springSecurity()).build();
+        mockMvc.perform(multipart(CONFIG_ENDPOINT).file(file).header("Authorization", "Bearer " + token))
+                .andExpect(status().is4xxClientError());
+
+    }
+
 }

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

@@ -2,7 +2,9 @@ package com.plannaplan.responses.mappers;
 
 import static org.junit.Assert.assertTrue;
 
+import java.lang.reflect.Field;
 import java.util.Arrays;
+import java.util.HashMap;
 import java.util.List;
 
 import com.plannaplan.entities.Groups;
@@ -15,38 +17,151 @@ 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<GroupWithCapacityResponse> response = GroupsMappers.mapToCapacityResponse(gropus);
+        @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<GroupWithCapacityResponse> response = GroupsMappers.mapToCapacityResponse(gropus);
 
-        assert (response.get(0).getCapacity() == 42);
-        assert (response.get(0) instanceof GroupWithCapacityResponse);
-        assert (response.size() == 1);
-    }
+                assert (response.get(0).getCapacity() == 42);
+                assert (response.get(0) instanceof GroupWithCapacityResponse);
+                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<GroupDefaultResponse> response = GroupsMappers.mapToDefaultResponse(gropus);
+        @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<GroupDefaultResponse> response = GroupsMappers.mapToDefaultResponse(gropus);
 
-        assert (response.get(0) instanceof GroupDefaultResponse);
-        assert (response.size() == 1);
-    }
+                assert (response.get(0) instanceof GroupDefaultResponse);
+                assert (response.size() == 1);
+        }
 
-    @Test
-    public void shouldMapToGetCourseGroupsResponse(){
-        final List<Groups> groups = Arrays.asList(
-            new Groups(150, "A4-1", null, 520, WeekDay.MONDAY, new Lecturer("krul.", "Wladyslaw", "Potocki")), new Groups(24, "A4-1", null, 520, WeekDay.MONDAY, new Lecturer("krul.", "Wladyslaw", "Potocki")));
-        
-        final CourseWithGroupsResponse<GroupDefaultResponse> response = GroupsMappers.mapToGetCourseGroupsDefaultResponse(groups);
+        @Test
+        public void shouldMapToGetCourseGroupsResponse() {
+                final List<Groups> groups = Arrays.asList(
+                                new Groups(150, "A4-1", null, 520, WeekDay.MONDAY,
+                                                new Lecturer("krul.", "Wladyslaw", "Potocki")),
+                                new Groups(24, "A4-1", null, 520, WeekDay.MONDAY,
+                                                new Lecturer("krul.", "Wladyslaw", "Potocki")));
 
-        assertTrue(response.getClasses().size() == 1);
-        assertTrue(response.getLectures().size() == 1);
+                final CourseWithGroupsResponse<GroupDefaultResponse> response = GroupsMappers
+                                .mapToGetCourseGroupsDefaultResponse(groups);
+
+                assertTrue(response.getClasses().size() == 1);
+                assertTrue(response.getLectures().size() == 1);
 
         }
-        
-}
 
+        @Test
+        public void shouldMapToGetCourseGroupsResponseWithTakenPlaces() throws NoSuchFieldException, SecurityException,
+                        IllegalArgumentException, IllegalAccessException {
+                final Field reader = Groups.class.getDeclaredField("id");
+                reader.setAccessible(true);
+
+                final List<Groups> groups = Arrays.asList(
+                                new Groups(150, "A4-1", null, 520, WeekDay.MONDAY,
+                                                new Lecturer("krul.", "Wladyslaw", "Potocki")),
+                                new Groups(24, "A4-1", null, 520, WeekDay.MONDAY,
+                                                new Lecturer("krul.", "Wladyslaw", "Potocki")));
+                reader.set(groups.get(0), Long.valueOf(0));
+                reader.set(groups.get(1), Long.valueOf(1));
+
+                final HashMap<Long, Integer> placeMap = new HashMap<>();
+                placeMap.put(Long.valueOf(0), 0);
+                placeMap.put(Long.valueOf(1), 21);
+
+                final CourseWithGroupsResponse<GroupDefaultResponse> response = GroupsMappers
+                                .mapToGetCourseGroupsDefaultResponse(groups, placeMap);
+
+                assertTrue(response.getClasses().size() == 1);
+                assertTrue(response.getLectures().size() == 1);
+                assertTrue(response.getLectures().get(0).getTakenPlaces() == 0);
+                assertTrue(response.getClasses().get(0).getTakenPlaces() == 21);
+        }
+
+        @Test
+        public void shouldMapToGetCourseCapacityGroupsResponseWithTakenPlaces() throws NoSuchFieldException,
+                        SecurityException, IllegalArgumentException, IllegalAccessException {
+                final Field reader = Groups.class.getDeclaredField("id");
+                reader.setAccessible(true);
+
+                final List<Groups> groups = Arrays.asList(
+                                new Groups(150, "A4-1", null, 520, WeekDay.MONDAY,
+                                                new Lecturer("krul.", "Wladyslaw", "Potocki")),
+                                new Groups(24, "A4-1", null, 520, WeekDay.MONDAY,
+                                                new Lecturer("krul.", "Wladyslaw", "Potocki")));
+                reader.set(groups.get(0), Long.valueOf(0));
+                reader.set(groups.get(1), Long.valueOf(1));
+
+                final HashMap<Long, Integer> placeMap = new HashMap<>();
+                placeMap.put(Long.valueOf(0), 0);
+                placeMap.put(Long.valueOf(1), 21);
+
+                final CourseWithGroupsResponse<GroupWithCapacityResponse> response = GroupsMappers
+                                .mapToGetCourseGroupsWithCapacityResponse(groups, placeMap);
+
+                assertTrue(response.getClasses().size() == 1);
+                assertTrue(response.getLectures().size() == 1);
+                assertTrue(response.getLectures().get(0).getTakenPlaces() == 0);
+                assertTrue(response.getLectures().get(0).getCapacity() == 150);
+                assertTrue(response.getClasses().get(0).getTakenPlaces() == 21);
+                assertTrue(response.getClasses().get(0).getCapacity() == 24);
+        }
+
+        @Test
+        public void shouldMapToDefaultResponseWithTakenPlace() throws NoSuchFieldException, SecurityException,
+                        IllegalArgumentException, IllegalAccessException {
+                final Field reader = Groups.class.getDeclaredField("id");
+                reader.setAccessible(true);
+
+                final Groups group1 = new Groups(150, "A4-1", null, 520, WeekDay.MONDAY,
+                                new Lecturer("krul.", "Wladyslaw", "Potocki"));
+                final Groups group2 = new Groups(24, "A4-1", null, 520, WeekDay.MONDAY,
+                                new Lecturer("krul.", "Wladyslaw", "Potocki"));
+
+                reader.set(group1, Long.valueOf(0));
+                reader.set(group2, Long.valueOf(1));
+
+                final HashMap<Long, Integer> placeMap = new HashMap<>();
+                placeMap.put(Long.valueOf(0), 5);
+                placeMap.put(Long.valueOf(1), 56);
+
+                final List<GroupDefaultResponse> response = GroupsMappers.mapToDefaultResponse(List.of(group1, group2),
+                                placeMap);
+
+                assertTrue(response.size() == 2);
+                assertTrue(response.get(0).getTakenPlaces() == 5);
+                assertTrue(response.get(1).getTakenPlaces() == 56);
+        }
+
+        @Test
+        public void shouldMapToCapacityResponseWithTakenPlace() throws NoSuchFieldException, SecurityException,
+                        IllegalArgumentException, IllegalAccessException {
+                final Field reader = Groups.class.getDeclaredField("id");
+                reader.setAccessible(true);
+
+                final Groups group1 = new Groups(150, "A4-1", null, 520, WeekDay.MONDAY,
+                                new Lecturer("krul.", "Wladyslaw", "Potocki"));
+                final Groups group2 = new Groups(24, "A4-1", null, 520, WeekDay.MONDAY,
+                                new Lecturer("krul.", "Wladyslaw", "Potocki"));
+
+                reader.set(group1, Long.valueOf(0));
+                reader.set(group2, Long.valueOf(1));
+
+                final HashMap<Long, Integer> placeMap = new HashMap<>();
+                placeMap.put(Long.valueOf(0), 5);
+                placeMap.put(Long.valueOf(1), 56);
+
+                final List<GroupWithCapacityResponse> response = GroupsMappers
+                                .mapToCapacityResponse(List.of(group1, group2), placeMap);
+
+                assertTrue(response.size() == 2);
+                assertTrue(response.get(0).getTakenPlaces() == 5);
+                assertTrue(response.get(0).getCapacity() == 150);
+                assertTrue(response.get(1).getTakenPlaces() == 56);
+                assertTrue(response.get(1).getCapacity() == 24);
+        }
+
+}