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Use more robust Guava Cache class for caching

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This commit is contained in:
Keir Nellyer 2016-06-10 12:33:46 +01:00
parent 4503f12738
commit 2cacdbae34
1 changed files with 17 additions and 7 deletions
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24
Plugins/Mineplex.Core/src/mineplex/core/report/ReportRepository.java
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@ -11,14 +11,18 @@ import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.UUID;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import com.mysql.jdbc.Statement;
import mineplex.core.database.MinecraftRepository;
import mineplex.serverdata.database.DBPool;
@ -83,7 +87,10 @@ public class ReportRepository extends MinecraftRepository
private static final String GET_ACCOUNT_UUID = "SELECT id, uuid FROM accounts" +
" WHERE id IN (%s);";
private final Map<Integer, Report> _cachedReports = new HashMap<>();
private final Cache<Integer, Report> _cachedReports = CacheBuilder.newBuilder()
.maximumSize(1000)
.expireAfterAccess(15, TimeUnit.MINUTES)
.build();
public ReportRepository(JavaPlugin plugin)
{
@ -140,9 +147,11 @@ public class ReportRepository extends MinecraftRepository
{
if (reportId != -1)
{
if (_cachedReports.containsKey(reportId))
Report cachedReport = _cachedReports.getIfPresent(reportId);
if (cachedReport != null)
{
return CompletableFuture.completedFuture(_cachedReports.get(reportId));
return CompletableFuture.completedFuture(cachedReport);
}
else
{
@ -393,10 +402,11 @@ public class ReportRepository extends MinecraftRepository
*/
protected void clearCacheFor(int accountId)
{
for (Map.Entry<Integer, Report> entry : new HashSet<>(_cachedReports.entrySet()))
Iterator<Report> iterator = _cachedReports.asMap().values().iterator();
while (iterator.hasNext())
{
int reportId = entry.getKey();
Report report = entry.getValue();
Report report = iterator.next();
Optional<Integer> handlerIdOptional = report.getHandlerId();
CompletableFuture<Boolean> disposeCacheFuture = CompletableFuture.completedFuture(false);
@ -422,7 +432,7 @@ public class ReportRepository extends MinecraftRepository
{
if (dispose)
{
_cachedReports.remove(reportId);
iterator.remove();
}
});
}