#53 [feat] : Market 에러 처리 기능 추가

backend/src/main/java/org/dgu/backend/exception/GlobalExceptionHandler.java

@@ -3,6 +3,7 @@
 import lombok.extern.slf4j.Slf4j;
 import org.dgu.backend.common.ApiResponse;
 import org.dgu.backend.common.code.BaseErrorCode;
+import org.dgu.backend.domain.Market;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.MissingRequestHeaderException;
@@ -68,4 +69,10 @@ public ResponseEntity<ApiResponse<BaseErrorCode>> handleChartException(ChartExce
         ChartErrorResult errorResult = e.getChartErrorResult();
         return ApiResponse.onFailure(errorResult);
     }
+    // Market
+    @ExceptionHandler(MarketException.class)
+    public ResponseEntity<ApiResponse<BaseErrorCode>> handleMarketException(MarketException e) {
+        MarketErrorResult errorResult = e.getMarketErrorResult();
+        return ApiResponse.onFailure(errorResult);
+    }
 }

backend/src/main/java/org/dgu/backend/exception/MarketErrorResult.java

@@ -0,0 +1,37 @@
+package org.dgu.backend.exception;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import org.dgu.backend.common.code.BaseErrorCode;
+import org.dgu.backend.common.dto.ErrorReasonDto;
+import org.springframework.http.HttpStatus;
+
+@Getter
+@RequiredArgsConstructor
+public enum MarketErrorResult implements BaseErrorCode {
+    NOT_FOUND_MARKET(HttpStatus.NOT_FOUND, "404", "존재하지 않는 가상화폐입니다."),
+    NOT_FOUND_MARKETS(HttpStatus.NOT_FOUND, "404", "가상화폐 목록이 존재하지 않습니다.");
+
+    private final HttpStatus httpStatus;
+    private final String code;
+    private final String message;
+
+    @Override
+    public ErrorReasonDto getReason() {
+        return ErrorReasonDto.builder()
+                .isSuccess(false)
+                .code(code)
+                .message(message)
+                .build();
+    }
+
+    @Override
+    public ErrorReasonDto getReasonHttpStatus() {
+        return ErrorReasonDto.builder()
+                .isSuccess(false)
+                .httpStatus(httpStatus)
+                .code(code)
+                .message(message)
+                .build();
+    }
+}

backend/src/main/java/org/dgu/backend/exception/MarketException.java

@@ -0,0 +1,15 @@
+package org.dgu.backend.exception;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@Getter
+@RequiredArgsConstructor
+public class MarketException extends RuntimeException {
+    private final MarketErrorResult marketErrorResult;
+
+    @Override
+    public String getMessage() {
+        return marketErrorResult.getMessage();
+    }
+}

backend/src/main/java/org/dgu/backend/service/ChartServiceImpl.java

@@ -8,6 +8,8 @@
 import org.dgu.backend.dto.ChartDto;
 import org.dgu.backend.exception.ChartErrorResult;
 import org.dgu.backend.exception.ChartException;
+import org.dgu.backend.exception.MarketErrorResult;
+import org.dgu.backend.exception.MarketException;
 import org.dgu.backend.repository.CandleInfoRepository;
 import org.dgu.backend.repository.CandleRepository;
 import org.dgu.backend.repository.MarketRepository;
@@ -16,6 +18,7 @@
 
 import java.time.LocalDateTime;
 import java.util.List;
+import java.util.Objects;
 import java.util.stream.Collectors;
 
 @Service
@@ -39,6 +42,9 @@ public List<ChartDto.OHLCVResponse> getOHLCVCharts(String koreanName, String can
     @Override
     public List<ChartDto.ChartOptionResponse> getAllChartOptions() {
         List<Market> markets = marketRepository.findAll();
+        if (markets.isEmpty()) {
+            throw new MarketException(MarketErrorResult.NOT_FOUND_MARKETS);
+        }
         List<Candle> candles = candleRepository.findAll();
 
         return markets.stream()
@@ -57,6 +63,9 @@ protected void updateCandleInfo(String koreanName, String candleName) {
     @Transactional
     protected List<ChartDto.OHLCVResponse> fetchUpdatedCandleInfo(String koreanName, String candleName) {
         Market market = marketRepository.findByKoreanName(koreanName);
+        if (Objects.isNull(market)) {
+            throw new MarketException(MarketErrorResult.NOT_FOUND_MARKET);
+        }
         Candle candle = candleRepository.findByCandleName(candleName);
         LocalDateTime startDate = candleUtil.getStartDateByCandleName(candleName);