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PT 154618835 - Improve memory footprint of CompilationUnit cache

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nsingh
2018-04-19 22:26:40 +02:00
parent c1f4458c35
commit 76775db3fe
1 changed files with 7 additions and 1 deletions
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8
headless-services/spring-boot-language-server/src/main/java/org/springframework/ide/vscode/boot/java/utils/CompilationUnitCache.java
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@@ -15,6 +15,7 @@ import java.nio.file.Path;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock.ReadLock;
import java.util.concurrent.locks.ReentrantReadWriteLock.WriteLock;
@@ -38,6 +39,7 @@ import com.google.common.cache.CacheBuilder;
public final class CompilationUnitCache {
private static final long CU_ACCESS_EXPIRATION_MINUTES = 3;
private JavaProjectFinder projectFinder;
private ProjectObserver projectObserver;
private Cache<URI, CompilationUnit> uriToCu;
@@ -52,7 +54,11 @@ public final class CompilationUnitCache {
this.projectObserver = projectObserver;
projectListener = ProjectObserver.onAny(this::invalidateProject);
uriToCu = CacheBuilder.newBuilder().build();
// PT 154618835 - Avoid retaining the CU in the cache as it consumes memory if it hasn't been
// accessed after some time
uriToCu = CacheBuilder.newBuilder()
.expireAfterAccess(CU_ACCESS_EXPIRATION_MINUTES, TimeUnit.MINUTES)
.build();
projectToDocs = CacheBuilder.newBuilder().build();
ReentrantReadWriteLock lock = new ReentrantReadWriteLock();