user-profile exception handler

userprofile-microservice/src/main/java/com/bilgeadam/exception/ErrorMessage.java

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+package com.bilgeadam.exception;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+
+@AllArgsConstructor
+@NoArgsConstructor
+@Data
+@Builder
+@Component
+public class ErrorMessage {
+    int code;
+    String message;
+    List<String> fields;
+}

userprofile-microservice/src/main/java/com/bilgeadam/exception/ErrorType.java

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+package com.bilgeadam.exception;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import org.springframework.http.HttpStatus;
+
+@AllArgsConstructor
+@NoArgsConstructor
+@Getter
+public enum ErrorType {
+    INTERNAL_ERROR(5100,"Sunucuda beklenmeyen hata oluştu",HttpStatus.INTERNAL_SERVER_ERROR),
+    BAD_REQUEST_ERROR(4100,"Parametre eksik yada hatalı",HttpStatus.BAD_REQUEST),
+    LOGIN_ERROR(4110,"Kullanıcı adı yada şifre hatalı",HttpStatus.BAD_REQUEST),
+    REGISTER_KULLANICIADI_KAYITLI(4112,"Kullanıcı adı zaten kayıtlı",HttpStatus.BAD_REQUEST),
+    REGISTER_REPASSWORD_ERROR(4111,"Şifreler uyuşmuyor" , HttpStatus.BAD_REQUEST);
+
+    int code;
+    String message;
+    HttpStatus httpStatus;
+}

userprofile-microservice/src/main/java/com/bilgeadam/exception/GlobalExceptionHandler.java

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+package com.bilgeadam.exception;
+
+import com.fasterxml.jackson.databind.exc.InvalidFormatException;
+import org.springframework.dao.DataIntegrityViolationException;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.http.converter.HttpMessageNotReadableException;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.MissingPathVariableException;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.method.annotation.MethodArgumentTypeMismatchException;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static com.bilgeadam.exception.ErrorType.*;
+
+@ControllerAdvice
+public class GlobalExceptionHandler {
+
+    @ExceptionHandler(Exception.class)
+    @ResponseBody
+    public ResponseEntity<ErrorMessage> handlerRuntimeException(Exception exception){
+        System.out.println("Hata oluştu");
+        ErrorType errorType = INTERNAL_ERROR;
+        return new ResponseEntity<>(createErrorMessage(exception,errorType),HttpStatus.INTERNAL_SERVER_ERROR);
+    }
+
+    @ExceptionHandler(UserprofileExecption.class)
+    @ResponseBody
+    public ResponseEntity<ErrorMessage> handlerAuthMicroseviceException(UserprofileExecption exception){
+        return new ResponseEntity<>(createErrorMessage(exception,exception.getErrorType()), HttpStatus.BAD_REQUEST);
+    }
+
+    @ExceptionHandler(HttpMessageNotReadableException.class)
+    @ResponseBody
+    public final ResponseEntity<ErrorMessage> handleMessageNotReadableException(
+            HttpMessageNotReadableException exception) {
+        ErrorType errorType = BAD_REQUEST_ERROR;
+        return new ResponseEntity<>(createErrorMessage(exception,errorType), errorType.getHttpStatus());
+    }
+
+    @ExceptionHandler(InvalidFormatException.class)
+    @ResponseBody
+    public final ResponseEntity<ErrorMessage> handleInvalidFormatException(
+            InvalidFormatException exception) {
+        ErrorType errorType = BAD_REQUEST_ERROR;
+        return new ResponseEntity<>(createErrorMessage(exception,errorType), errorType.getHttpStatus());
+    }
+
+    @ExceptionHandler(DataIntegrityViolationException.class)
+    @ResponseBody
+    public final ResponseEntity<ErrorMessage> handlePSQLException(
+            DataIntegrityViolationException exception) {
+        ErrorType errorType = REGISTER_KULLANICIADI_KAYITLI;
+        return new ResponseEntity<>(createErrorMessage(exception,errorType), errorType.getHttpStatus());
+    }
+
+
+    @ExceptionHandler(MethodArgumentTypeMismatchException.class)
+    @ResponseBody
+    public final ResponseEntity<ErrorMessage> handleMethodArgumentMisMatchException(
+            MethodArgumentTypeMismatchException exception) {
+
+        ErrorType errorType = BAD_REQUEST_ERROR;
+        return new ResponseEntity<>(createErrorMessage(exception,errorType), errorType.getHttpStatus());
+    }
+
+    @ExceptionHandler(MissingPathVariableException.class)
+    @ResponseBody
+    public final ResponseEntity<ErrorMessage> handleMethodArgumentMisMatchException(
+            MissingPathVariableException exception) {
+
+        ErrorType errorType = BAD_REQUEST_ERROR;
+        return new ResponseEntity<>(createErrorMessage(exception,errorType), errorType.getHttpStatus());
+    }
+
+
+    @ExceptionHandler(MethodArgumentNotValidException.class)
+    @ResponseBody
+    public final ResponseEntity<ErrorMessage> handleMethodArgumentNotValidException(
+            MethodArgumentNotValidException exception) {
+
+        ErrorType errorType = BAD_REQUEST_ERROR;
+        List<String> fields = new ArrayList<>();
+        exception
+                .getBindingResult()
+                .getFieldErrors()
+                .forEach(e -> fields.add(e.getField() + ": " + e.getDefaultMessage()));
+        ErrorMessage errorMessage = createErrorMessage(exception,errorType);
+        errorMessage.setFields(fields);
+        return new ResponseEntity<>(errorMessage, errorType.getHttpStatus());
+    }
+
+    /**
+     * Hata yakalama işlemleri bir çok hata için ayrı ayrı yapılmalıdır. bu nedenel tüm hataların
+     * içerisine log alma işlemi yazmak zorunda kalırız. bu işlemleri tekelleştirmek ve hata log kayıtlarını
+     * toplamak için tekbir method kullanmak daha doğru olacaktır.
+     * @param exception
+     * @param errorType
+     * @return
+     */
+    private ErrorMessage createErrorMessage(Exception exception,ErrorType errorType){
+        System.out.println("Tüm hataların geçtiği nokta...: "+ exception.getMessage());
+        return ErrorMessage.builder()
+                .message(errorType.getMessage())
+                .code(errorType.getCode())
+                .build();
+    }
+}

userprofile-microservice/src/main/java/com/bilgeadam/exception/UserprofileExecption.java

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+package com.bilgeadam.exception;
+
+import lombok.Getter;
+
+@Getter
+public class UserprofileExecption extends RuntimeException{
+
+    private final ErrorType errorType;
+
+    public UserprofileExecption(ErrorType errorType) {
+        super(errorType.getMessage());
+        this.errorType = errorType;
+    }
+
+    public UserprofileExecption(ErrorType errorType, String message) {
+        super(message);
+        this.errorType = errorType;
+    }
+
+}