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Code Issues Packages Projects Releases Wiki Activity

RootIndex: cache non-existent packages (IDEA-127942)

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peter
2014-07-29 12:10:08 +02:00
parent 4b644bda30
commit cd5b53db93
1 changed files with 16 additions and 0 deletions
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platform/projectModel-impl/src/com/intellij/openapi/roots/impl/RootIndex.java
+16
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@@ -25,13 +25,16 @@ import com.intellij.openapi.roots.*;
import com.intellij.openapi.roots.impl.libraries.LibraryEx;
import com.intellij.openapi.roots.libraries.Library;
import com.intellij.openapi.util.Condition;
import com.intellij.openapi.util.LowMemoryWatcher;
import com.intellij.openapi.util.Pair;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.openapi.vfs.VfsUtilCore;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.vfs.newvfs.events.VFileEvent;
import com.intellij.util.CollectionQuery;
import com.intellij.util.EmptyQuery;
import com.intellij.util.Query;
import com.intellij.util.containers.ConcurrentHashSet;
import com.intellij.util.containers.ContainerUtil;
import com.intellij.util.containers.MultiMap;
import gnu.trove.TObjectIntHashMap;
@@ -62,11 +65,20 @@ public class RootIndex {
};
private final Map<String, List<VirtualFile>> myDirectoriesByPackageNameCache = ContainerUtil.newConcurrentMap();
private final Set<String> myNonExistentPackages = new ConcurrentHashSet<String>();
private final InfoCache myInfoCache;
private final List<JpsModuleSourceRootType<?>> myRootTypes = ContainerUtil.newArrayList();
private final TObjectIntHashMap<JpsModuleSourceRootType<?>> myRootTypeId = new TObjectIntHashMap<JpsModuleSourceRootType<?>>();
@NotNull private final Project myProject;
private volatile Map<VirtualFile, OrderEntry[]> myOrderEntries;
@SuppressWarnings("UnusedDeclaration")
private final LowMemoryWatcher myLowMemoryWatcher = LowMemoryWatcher.register(new Runnable() {
@Override
public void run() {
myNonExistentPackages.clear();
}
});
// made public for Upsource
public RootIndex(@NotNull Project project, @NotNull InfoCache cache) {
@@ -321,6 +333,8 @@ public class RootIndex {
public Query<VirtualFile> getDirectoriesByPackageName(@NotNull final String packageName, final boolean includeLibrarySources) {
List<VirtualFile> result = myDirectoriesByPackageNameCache.get(packageName);
if (result == null) {
if (myNonExistentPackages.contains(packageName)) return EmptyQuery.getEmptyQuery();
result = ContainerUtil.newSmartList();
if (StringUtil.isNotEmpty(packageName) && !StringUtil.startsWithChar(packageName, '.')) {
@@ -348,6 +362,8 @@ public class RootIndex {
if (!result.isEmpty()) {
myDirectoriesByPackageNameCache.put(packageName, result);
} else {
myNonExistentPackages.add(packageName);
}
}