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Fix CacheStore errors from checkstyle plugin 107 left

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This commit is contained in:
Victor Z
2021-08-22 11:12:53 +03:00
parent 3c213fcd69
commit c150e5f38b
1 changed files with 40 additions and 12 deletions
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52
caching/src/main/java/com/iluwatar/caching/CacheStore.java
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@ -35,20 +35,34 @@ import lombok.extern.slf4j.Slf4j;
*/ */
@Slf4j @Slf4j
public class CacheStore { public class CacheStore {
/**
* Cach capacity.
*/
private static final int CAPACITY = 3; private static final int CAPACITY = 3;
/**
* Lru cache see {@link LruCache}.
*/
private static LruCache cache; private static LruCache cache;
/**
* DbManager.
*/
private DbManager dbManager; private DbManager dbManager;
public CacheStore(DbManager dbManager) { /**
this.dbManager = dbManager; * Cache Store.
* @param dataBaseManager {@link DbManager}
*/
public CacheStore(final DbManager dataBaseManager) {
this.dbManager = dataBaseManager;
initCapacity(CAPACITY); initCapacity(CAPACITY);
} }
/** /**
* Init cache capacity. * Init cache capacity.
* @param capacity int
*/ */
public void initCapacity(int capacity) { public void initCapacity(final int capacity) {
if (cache == null) { if (cache == null) {
cache = new LruCache(capacity); cache = new LruCache(capacity);
} else { } else {
@ -58,8 +72,10 @@ public class CacheStore {
/** /**
* Get user account using read-through cache. * Get user account using read-through cache.
* @param userId {@link String}
* @return {@link UserAccount}
*/ */
public UserAccount readThrough(String userId) { public UserAccount readThrough(final String userId) {
if (cache.contains(userId)) { if (cache.contains(userId)) {
LOGGER.info("# Found in Cache!"); LOGGER.info("# Found in Cache!");
return cache.get(userId); return cache.get(userId);
@ -72,8 +88,9 @@ public class CacheStore {
/** /**
* Get user account using write-through cache. * Get user account using write-through cache.
* @param userAccount {@link UserAccount}
*/ */
public void writeThrough(UserAccount userAccount) { public void writeThrough(final UserAccount userAccount) {
if (cache.contains(userAccount.getUserId())) { if (cache.contains(userAccount.getUserId())) {
dbManager.updateDb(userAccount); dbManager.updateDb(userAccount);
} else { } else {
@ -84,11 +101,13 @@ public class CacheStore {
/** /**
* Get user account using write-around cache. * Get user account using write-around cache.
* @param userAccount {@link UserAccount}
*/ */
public void writeAround(UserAccount userAccount) { public void writeAround(final UserAccount userAccount) {
if (cache.contains(userAccount.getUserId())) { if (cache.contains(userAccount.getUserId())) {
dbManager.updateDb(userAccount); dbManager.updateDb(userAccount);
cache.invalidate(userAccount.getUserId()); // Cache data has been updated -- remove older // Cache data has been updated -- remove older
cache.invalidate(userAccount.getUserId());
// version from cache. // version from cache.
} else { } else {
dbManager.writeToDb(userAccount); dbManager.writeToDb(userAccount);
@ -97,8 +116,10 @@ public class CacheStore {
/** /**
* Get user account using read-through cache with write-back policy. * Get user account using read-through cache with write-back policy.
* @param userId {@link String}
* @return {@link UserAccount}
*/ */
public UserAccount readThroughWithWriteBackPolicy(String userId) { public UserAccount readThroughWithWriteBackPolicy(final String userId) {
if (cache.contains(userId)) { if (cache.contains(userId)) {
LOGGER.info("# Found in cache!"); LOGGER.info("# Found in cache!");
return cache.get(userId); return cache.get(userId);
@ -116,8 +137,9 @@ public class CacheStore {
/** /**
* Set user account. * Set user account.
* @param userAccount {@link UserAccount}
*/ */
public void writeBehind(UserAccount userAccount) { public void writeBehind(final UserAccount userAccount) {
if (cache.isFull() && !cache.contains(userAccount.getUserId())) { if (cache.isFull() && !cache.contains(userAccount.getUserId())) {
LOGGER.info("# Cache is FULL! Writing LRU data to DB..."); LOGGER.info("# Cache is FULL! Writing LRU data to DB...");
UserAccount toBeWrittenToDb = cache.getLruData(); UserAccount toBeWrittenToDb = cache.getLruData();
@ -148,6 +170,7 @@ public class CacheStore {
/** /**
* Print user accounts. * Print user accounts.
* @return {@link String}
*/ */
public String print() { public String print() {
return Optional.ofNullable(cache) return Optional.ofNullable(cache)
@ -160,22 +183,27 @@ public class CacheStore {
/** /**
* Delegate to backing cache store. * Delegate to backing cache store.
* @param userId {@link String}
* @return {@link UserAccount}
*/ */
public UserAccount get(String userId) { public UserAccount get(final String userId) {
return cache.get(userId); return cache.get(userId);
} }
/** /**
* Delegate to backing cache store. * Delegate to backing cache store.
* @param userId {@link String}
* @param userAccount {@link UserAccount}
*/ */
public void set(String userId, UserAccount userAccount) { public void set(final String userId, final UserAccount userAccount) {
cache.set(userId, userAccount); cache.set(userId, userAccount);
} }
/** /**
* Delegate to backing cache store. * Delegate to backing cache store.
* @param userId {@link String}
*/ */
public void invalidate(String userId) { public void invalidate(final String userId) {
cache.invalidate(userId); cache.invalidate(userId);
} }
} }