feat(exception): segregate community manager exceptions

community-manager/src/main/java/evrentan/community/communitymanager/exception/CommunityNotFoundException.java

@@ -0,0 +1,15 @@
+package evrentan.community.communitymanager.exception;
+
+public class CommunityNotFoundException extends RuntimeException {
+
+    private final String message;
+
+    public CommunityNotFoundException(String message) {
+        this.message = message;
+    }
+
+    @Override
+    public String getMessage() {
+        return message;
+    }
+}

community-manager/src/main/java/evrentan/community/communitymanager/exception/GlobalRestExceptionHandler.java

@@ -33,7 +33,7 @@ public class GlobalRestExceptionHandler {
     @ExceptionHandler(BadRequestException.class)
     public ResponseEntity<CustomRestError> badRequestException(final Exception exception, final HttpServletRequest httpServletRequest){
         var customRestError = CustomRestError.builder()
-                .message(exception.getCause().getMessage())
+                .message(exception.getMessage())
                 .status(HttpStatus.BAD_REQUEST.value())
                 .build();
         return responseEntity(customRestError);
@@ -51,10 +51,13 @@ public ResponseEntity<CustomRestError> badRequestException(final Exception excep
      * @author <a href="https://github.com/Onuraktasj">Onur Aktas</a>
      * @since 1.0.0
      */
-    @ExceptionHandler(NotFoundException.class)
+    @ExceptionHandler({
+            NotFoundException.class,
+            CommunityNotFoundException.class
+    })
     public ResponseEntity<CustomRestError> notFoundException(final Exception exception, final HttpServletRequest httpServletRequest){
         var customRestError = CustomRestError.builder()
-                .message(exception.getCause().getMessage())
+                .message(exception.getMessage())
                 .status(HttpStatus.NOT_FOUND.value())
                 .build();
         return responseEntity(customRestError);
@@ -74,7 +77,7 @@ public ResponseEntity<CustomRestError> notFoundException(final Exception excepti
     @ExceptionHandler(InternalServerErrorException.class)
     public ResponseEntity<CustomRestError> ınternalServerException(final Exception exception,final  HttpServletRequest httpServletRequest){
         var customRestError = CustomRestError.builder()
-                .message(exception.getCause().getMessage())
+                .message(exception.getMessage())
                 .status(HttpStatus.INTERNAL_SERVER_ERROR.value())
                 .build();
         return responseEntity(customRestError);

community-manager/src/main/java/evrentan/community/communitymanager/impl/CommunityServiceImpl.java

@@ -1,14 +1,15 @@
 package evrentan.community.communitymanager.impl;
 
 import evrentan.community.communitymanager.dto.entity.Community;
+import evrentan.community.communitymanager.exception.CommunityNotFoundException;
 import evrentan.community.communitymanager.entity.CommunityEntity;
 import evrentan.community.communitymanager.mapper.CommunityMapper;
+import evrentan.community.communitymanager.message.ExceptionMessages;
 import evrentan.community.communitymanager.repository.CommunityRepository;
 import evrentan.community.communitymanager.service.CommunityService;
 import org.springframework.stereotype.Service;
 
 import java.util.List;
-import java.util.NoSuchElementException;
 import java.util.Objects;
 import java.util.UUID;
 
@@ -51,7 +52,12 @@ public Community createCommunity(Community community) {
    */
   @Override
   public List<Community> getCommunities() {
-    return CommunityMapper.toDtoList(this.communityRepository.findAll());
+    List<Community> communityList = CommunityMapper.toDtoList(this.communityRepository.findAll());
+
+    if (communityList.isEmpty())
+      throw new CommunityNotFoundException(ExceptionMessages.COMMUNITY_NOT_FOUND);
+
+    return communityList;
   }
 
   /**
@@ -65,7 +71,7 @@ public List<Community> getCommunities() {
    */
   @Override
   public Community getCommunity(UUID id) {
-    return CommunityMapper.toDto(this.communityRepository.findById(id).orElseThrow(() -> new NoSuchElementException("Community not found")));
+    return CommunityMapper.toDto(this.communityRepository.findById(id).orElseThrow(() -> new CommunityNotFoundException(ExceptionMessages.COMMUNITY_NOT_FOUND)));
   }
 
   /**
@@ -95,11 +101,11 @@ public Boolean checkCommunityStatusById(UUID id) {
    */
   @Override
   public Community updateCommunity(UUID id, Community community) {
-    if(!Objects.equals(id, community.getId()))
+    if (!Objects.equals(id, community.getId()))
       throw new IllegalArgumentException("Ids do not match");
 
     if (!this.communityRepository.existsById(id))
-      throw new NoSuchElementException("Community not found");
+      throw new CommunityNotFoundException(ExceptionMessages.COMMUNITY_NOT_FOUND);
 
     return CommunityMapper.toDto(this.communityRepository.save(CommunityMapper.toEntity(community)));
   }
@@ -115,7 +121,7 @@ public Community updateCommunity(UUID id, Community community) {
    */
   @Override
   public Community updateCommunityStatus(UUID id, boolean status) {
-    CommunityEntity communityEntity = this.communityRepository.findById(id).orElseThrow(() -> new NoSuchElementException("Community not found"));
+    CommunityEntity communityEntity = this.communityRepository.findById(id).orElseThrow(() -> new CommunityNotFoundException(ExceptionMessages.COMMUNITY_NOT_FOUND));
     communityEntity.setActive(status);
 
     return CommunityMapper.toDto(this.communityRepository.save(communityEntity));

community-manager/src/main/java/evrentan/community/communitymanager/message/ExceptionMessages.java

@@ -0,0 +1,6 @@
+package evrentan.community.communitymanager.message;
+
+public class ExceptionMessages {
+
+    public static final String COMMUNITY_NOT_FOUND = "Community not found!";
+}