fix ForbiddenPageIdsLogicService

@@ -21,20 +21,20 @@ import com.yoho.search.core.personalized.BigDataRedisOper;
 public class ForbiddenPageIdsLogicService {
 
 	private static final Logger logger = LoggerFactory.getLogger(ForbiddenPageIdsLogicService.class);
-
 	private final Logger INDEX_REBUILD_LOG = LoggerFactory.getLogger("INDEX_REBULDER");
-
 	@Autowired
 	private BigDataRedisOper<String, String> bigDataRedisOper;
-
 	private static final String key = "SEARCH_FORBIDDEN_SKNLIST_%s";
 
 	private Map<String, List<String>> sknForbiddenPageIdsMap = null;
 	private Map<String, Integer> pageForbiddenSknCountMap = null;
 
+	private volatile boolean isReloading = false;
+
 	public synchronized void reloadForbiddenPageIds() {
 		try {
 			INDEX_REBUILD_LOG.info("do reloadForbiddenPageIds .........");
+			isReloading = true;
 			List<String> allPageIds = SearchPageIdDefine.getAllPgeIds();
 			Map<String, List<String>> sknForbiddenPageIdsMap_temp = new HashMap<String, List<String>>();
 			Map<String, Integer> pageForbiddenSknCountMap_temp = new HashMap<String, Integer>();
@@ -54,6 +54,8 @@ public class ForbiddenPageIdsLogicService {
 			pageForbiddenSknCountMap = pageForbiddenSknCountMap_temp;
 		} catch (Exception e) {
 			INDEX_REBUILD_LOG.error(e.getMessage(), e);
+		} finally {
+			isReloading = false;
 		}
 	}
 
@@ -69,29 +71,30 @@ public class ForbiddenPageIdsLogicService {
 		}
 	}
 
-	private boolean isNeedReload() {
-		if (sknForbiddenPageIdsMap == null){
-			return true;
+	public Map<String, Integer> getPageForbiddenSknCountMap() {
+		if (sknForbiddenPageIdsMap == null || sknForbiddenPageIdsMap.isEmpty()) {
+			reloadForbiddenPageIds();
 		}
-		return false;
+		return this.pageForbiddenSknCountMap;
 	}
 
 	private void checkAndInit() {
-		if (!isNeedReload()) {
+		while (isReloading) {
+			try {
+				Thread.sleep(1000);
+			} catch (Exception e) {
+			}
+		}
+		if (sknForbiddenPageIdsMap != null) {
 			return;
 		}
 		synchronized (ForbiddenPageIdsLogicService.class) {
-			if (isNeedReload()) {
+			if (sknForbiddenPageIdsMap == null) {
 				reloadForbiddenPageIds();
 			}
 		}
 	}
 	
-	public Map<String, Integer> getPageForbiddenSknCountMap() {
-		checkAndInit();
-		return this.pageForbiddenSknCountMap;
-	}
-
 	public String getSknForbiddenPageIds(String productSkn) {
 		checkAndInit();
 		if (StringUtils.isBlank(productSkn)) {