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added in memory cache and redis cache and marked them as application scoped

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Athou
2013-06-29 11:20:53 +02:00
parent c2af4de96b
commit 27e03e3038
7 changed files with 161 additions and 30 deletions
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28
src/main/java/com/commafeed/backend/cache/CacheService.java vendored
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@@ -1,31 +1,21 @@
package com.commafeed.backend.cache;
import java.util.concurrent.TimeUnit;
import java.util.List;
import org.apache.commons.codec.digest.DigestUtils;
import com.commafeed.backend.model.Feed;
import com.commafeed.backend.model.FeedEntry;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
public class CacheService {
public abstract class CacheService {
Cache<String, Marker> entryCache = CacheBuilder.newBuilder()
.maximumSize(1000000).expireAfterWrite(24, TimeUnit.HOURS).build();
public abstract List<String> getLastEntries(Feed feed);
private static enum Marker {
INSTANCE
}
public abstract void setLastEntries(Feed feed, List<String> entries);
public boolean hasFeedEntry(Feed feed, FeedEntry entry) {
return entryCache.getIfPresent(buildKey(feed, entry)) == Marker.INSTANCE;
}
public void putFeedEntry(Feed feed, FeedEntry entry) {
entryCache.put(buildKey(feed, entry), Marker.INSTANCE);
}
private String buildKey(Feed feed, FeedEntry entry) {
return String.format("%s:%s:%s", feed.getId(), entry.getGuid(),
public String buildKey(Feed feed, FeedEntry entry) {
return DigestUtils.sha1Hex(entry.getGuid() +
entry.getUrl());
}
}