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revamp cache service

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Athou
2013-07-25 10:21:11 +02:00
parent bdb30a60c3
commit 73f2871235
13 changed files with 285 additions and 124 deletions
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134
src/main/java/com/commafeed/backend/cache/RedisCacheService.java vendored
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@@ -1,7 +1,6 @@
package com.commafeed.backend.cache;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;
@@ -17,12 +16,13 @@ import redis.clients.jedis.JedisPoolConfig;
import redis.clients.jedis.Pipeline;
import com.commafeed.backend.model.Feed;
import com.commafeed.backend.model.FeedCategory;
import com.commafeed.backend.model.FeedSubscription;
import com.commafeed.backend.model.Models;
import com.commafeed.backend.model.User;
import com.commafeed.frontend.model.Category;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.type.MapType;
import com.fasterxml.jackson.databind.type.CollectionType;
import com.google.api.client.util.Lists;
@Alternative
@@ -30,9 +30,12 @@ import com.google.api.client.util.Lists;
public class RedisCacheService extends CacheService {
private static final Logger log = LoggerFactory.getLogger(RedisCacheService.class);
private static ObjectMapper mapper = new ObjectMapper();
private static CollectionType TYPE_LIST_CATEGORIES = mapper.getTypeFactory().constructCollectionType(List.class, FeedCategory.class);
private static CollectionType TYPE_LIST_SUBSCRIPTIONS = mapper.getTypeFactory().constructCollectionType(List.class,
FeedSubscription.class);
private JedisPool pool = new JedisPool(new JedisPoolConfig(), "localhost");
private ObjectMapper mapper = new ObjectMapper();
@Override
public List<String> getLastEntries(Feed feed) {
@@ -69,32 +72,32 @@ public class RedisCacheService extends CacheService {
}
@Override
public Category getRootCategory(User user) {
Category cat = null;
public List<FeedCategory> getUserCategories(User user) {
List<FeedCategory> cats = null;
Jedis jedis = pool.getResource();
try {
String key = buildRedisRootCategoryKey(user);
String key = buildRedisUserCategoriesKey(user);
String json = jedis.get(key);
if (json != null) {
cat = mapper.readValue(json, Category.class);
cats = mapper.readValue(json, TYPE_LIST_CATEGORIES);
}
} catch (Exception e) {
log.error(e.getMessage(), e);
} finally {
pool.returnResource(jedis);
}
return cat;
return cats;
}
@Override
public void setRootCategory(User user, Category category) {
public void setUserCategories(User user, List<FeedCategory> categories) {
Jedis jedis = pool.getResource();
try {
String key = buildRedisRootCategoryKey(user);
String key = buildRedisUserCategoriesKey(user);
Pipeline pipe = jedis.pipelined();
pipe.del(key);
pipe.set(key, mapper.writeValueAsString(category));
pipe.set(key, mapper.writeValueAsString(categories));
pipe.expire(key, (int) TimeUnit.MINUTES.toSeconds(30));
pipe.sync();
} catch (JsonProcessingException e) {
@@ -105,33 +108,32 @@ public class RedisCacheService extends CacheService {
}
@Override
public Map<Long, Long> getUnreadCounts(User user) {
Map<Long, Long> map = null;
public List<FeedSubscription> getUserSubscriptions(User user) {
List<FeedSubscription> subs = null;
Jedis jedis = pool.getResource();
try {
String key = buildRedisUnreadCountKey(user);
String key = buildRedisUserSubscriptionsKey(user);
String json = jedis.get(key);
if (json != null) {
MapType type = mapper.getTypeFactory().constructMapType(Map.class, Long.class, Long.class);
map = mapper.readValue(json, type);
subs = mapper.readValue(json, TYPE_LIST_SUBSCRIPTIONS);
}
} catch (Exception e) {
log.error(e.getMessage(), e);
} finally {
pool.returnResource(jedis);
}
return map;
return subs;
}
@Override
public void setUnreadCounts(User user, Map<Long, Long> map) {
public void setUserSubscriptions(User user, List<FeedSubscription> subs) {
Jedis jedis = pool.getResource();
try {
String key = buildRedisUnreadCountKey(user);
String key = buildRedisUserSubscriptionsKey(user);
Pipeline pipe = jedis.pipelined();
pipe.del(key);
pipe.set(key, mapper.writeValueAsString(map));
pipe.set(key, mapper.writeValueAsString(subs));
pipe.expire(key, (int) TimeUnit.MINUTES.toSeconds(30));
pipe.sync();
} catch (JsonProcessingException e) {
@@ -142,15 +144,71 @@ public class RedisCacheService extends CacheService {
}
@Override
public void invalidateUserData(User... users) {
public Long getUnreadCount(FeedSubscription sub) {
Long count = null;
Jedis jedis = pool.getResource();
try {
String key = buildRedisUnreadCountKey(sub);
String countString = jedis.get(key);
if (countString != null) {
count = Long.valueOf(countString);
}
} catch (Exception e) {
log.error(e.getMessage(), e);
} finally {
pool.returnResource(jedis);
}
return count;
}
@Override
public void setUnreadCount(FeedSubscription sub, Long count) {
Jedis jedis = pool.getResource();
try {
String key = buildRedisUnreadCountKey(sub);
Pipeline pipe = jedis.pipelined();
pipe.del(key);
pipe.set(key, String.valueOf(count));
pipe.expire(key, (int) TimeUnit.MINUTES.toSeconds(30));
pipe.sync();
} catch (Exception e) {
log.error(e.getMessage(), e);
} finally {
pool.returnResource(jedis);
}
}
@Override
public void invalidateUserCategories(User user) {
Jedis jedis = pool.getResource();
try {
String key = buildRedisUserCategoriesKey(user);
jedis.del(key);
} finally {
pool.returnResource(jedis);
}
}
@Override
public void invalidateUserSubscriptions(User user) {
Jedis jedis = pool.getResource();
try {
String key = buildRedisUserSubscriptionsKey(user);
jedis.del(key);
} finally {
pool.returnResource(jedis);
}
}
@Override
public void invalidateUnreadCount(FeedSubscription... subs) {
Jedis jedis = pool.getResource();
try {
Pipeline pipe = jedis.pipelined();
if (users != null) {
for (User user : users) {
String key = buildRedisRootCategoryKey(user);
pipe.del(key);
key = buildRedisUnreadCountKey(user);
if (subs != null) {
for (FeedSubscription sub : subs) {
String key = buildRedisUnreadCountKey(sub);
pipe.del(key);
}
}
@@ -160,16 +218,20 @@ public class RedisCacheService extends CacheService {
}
}
private String buildRedisRootCategoryKey(User user) {
return "root_cat:" + Models.getId(user);
}
private String buildRedisUnreadCountKey(User user) {
return "unread_count:" + Models.getId(user);
}
private String buildRedisEntryKey(Feed feed) {
return "feed:" + feed.getId();
return "f:" + Models.getId(feed);
}
private String buildRedisUserCategoriesKey(User user) {
return "c:" + Models.getId(user);
}
private String buildRedisUserSubscriptionsKey(User user) {
return "s:" + Models.getId(user);
}
private String buildRedisUnreadCountKey(FeedSubscription sub) {
return "u:" + Models.getId(sub);
}
}