@Override
@Nullable
public PsiPackage findPackage(@NotNull String packageName) {
Query<VirtualFile> dirs = myPackageIndex.getDirsByPackageName(packageName, true);
if (dirs.findFirst() == null) return null;
return new PsiPackageImpl(myManager, packageName);
}
public JavaFileManagerImpl(Project project) {
myManager = PsiManagerEx.getInstanceEx(project);
myPackageIndex = PackageIndex.getInstance(myManager.getProject());
project
.getMessageBus()
.connect()
.subscribe(
ProjectTopics.PROJECT_ROOTS,
new ModuleRootAdapter() {
@Override
public void rootsChanged(final ModuleRootEvent event) {
myNontrivialPackagePrefixes = null;
}
});
}