feat: DB 백업 기능 추가

Author: 82everywin

build.gradle

@@ -193,7 +193,7 @@ afterEvaluate {
     }
 }
 
-// 커버리지 검증 (현실적 기준)
+// 커버리지 검증
 tasks.named('jacocoTestCoverageVerification') {
     violationRules {
         rule {
@@ -203,13 +203,13 @@ tasks.named('jacocoTestCoverageVerification') {
             limit {
                 counter = 'LINE'
                 value = 'COVEREDRATIO'
-                minimum = 0.00
+                minimum = 0.4
             }
 
             limit {
                 counter = 'BRANCH'
                 value = 'COVEREDRATIO'
-                minimum = 0.00
+                minimum = 0.8
             }
 
             excludes = [
@@ -230,7 +230,7 @@ tasks.named('jacocoTestCoverageVerification') {
     }
 }
 
-// SonarQube 태스크 의존성 설정 (최신 API)
+// SonarQube 태스크 의존성 설정
 tasks.named('sonar') {
     dependsOn tasks.compileJava, tasks.compileTestJava, tasks.test, tasks.jacocoTestReport
 
@@ -246,7 +246,7 @@ tasks.named('sonar') {
 
 }
 
-// 커스텀 태스크들 (최신 Task API 사용)
+
 tasks.register('testOnly') {
     group = 'verification'
     description = "테스트만 실행 (실패 무시)"

src/main/java/com/neeis/neeis/global/backup/BackupController.java

@@ -0,0 +1,28 @@
+package com.neeis.neeis.global.backup;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/admin/backup")
+@RequiredArgsConstructor
+@ConditionalOnProperty(name = "backup.enabled", havingValue = "true")
+public class BackupController {
+
+    private final DatabaseBackupService backupService;
+
+    @PostMapping("/manual")
+    public ResponseEntity<String> manualBackup() {
+        boolean success = backupService.performBackup();
+        return success ?
+                ResponseEntity.ok("백업이 성공적으로 완료되었습니다.") :
+                ResponseEntity.internalServerError().body("백업 실행 중 오류가 발생했습니다.");
+    }
+
+    @GetMapping("/status")
+    public ResponseEntity<BackupStatus> getBackupStatus() {
+        return ResponseEntity.ok(backupService.getBackupStatus());
+    }
+}

src/main/java/com/neeis/neeis/global/backup/BackupSchedulerConfig.java

@@ -0,0 +1,26 @@
+package com.neeis.neeis.global.backup;
+
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.scheduling.annotation.EnableScheduling;
+import org.springframework.scheduling.annotation.SchedulingConfigurer;
+import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
+import org.springframework.scheduling.config.ScheduledTaskRegistrar;
+
+@Configuration
+@EnableScheduling
+@ConditionalOnProperty(name = "backup.enabled", havingValue = "true", matchIfMissing = false)
+public class BackupSchedulerConfig implements SchedulingConfigurer {
+
+    @Override
+    public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
+        ThreadPoolTaskScheduler taskScheduler = new ThreadPoolTaskScheduler();
+        taskScheduler.setPoolSize(2); // 백업용 스레드 풀 크기
+        taskScheduler.setThreadNamePrefix("backup-scheduler-");
+        taskScheduler.setWaitForTasksToCompleteOnShutdown(true);
+        taskScheduler.setAwaitTerminationSeconds(60);
+        taskScheduler.initialize();
+
+        taskRegistrar.setTaskScheduler(taskScheduler);
+    }
+}

src/main/java/com/neeis/neeis/global/backup/BackupStatus.java

@@ -0,0 +1,25 @@
+package com.neeis.neeis.global.backup;
+
+import lombok.Builder;
+import lombok.Getter;
+import java.time.LocalDateTime;
+
+@Getter
+@Builder
+public class BackupStatus {
+    private final LocalDateTime lastBackupTime;
+    private final int backupCount;
+    private final long totalSize;
+
+    public String getTotalSizeFormatted() {
+        if (totalSize < 1024) {
+            return totalSize + " B";
+        } else if (totalSize < 1024 * 1024) {
+            return String.format("%.1f KB", totalSize / 1024.0);
+        } else if (totalSize < 1024 * 1024 * 1024) {
+            return String.format("%.1f MB", totalSize / (1024.0 * 1024.0));
+        } else {
+            return String.format("%.1f GB", totalSize / (1024.0 * 1024.0 * 1024.0));
+        }
+    }
+}