private static Map<StubIndexKey, Map<Object, int[]>> getStubTree(
@NotNull final Map<Integer, SerializedStubTree> data) {
final Map<StubIndexKey, Map<Object, int[]>> stubTree;
if (!data.isEmpty()) {
final SerializedStubTree stub = data.values().iterator().next();
stubTree = new StubTree((PsiFileStub) stub.getStub(true), false).indexStubTree();
} else {
stubTree = Collections.emptyMap();
}
return stubTree;
}
@Override
public void save(final DataOutput out, @NotNull final SerializedStubTree v)
throws IOException {
v.write(out);
}
@Override
@Nullable
public ObjectStubTree readFromVFile(Project project, final VirtualFile vFile) {
if (DumbService.getInstance(project).isDumb()) {
return null;
}
final int id = Math.abs(FileBasedIndex.getFileId(vFile));
if (id <= 0) {
return null;
}
boolean wasIndexedAlready =
((FileBasedIndexImpl) FileBasedIndex.getInstance()).isFileUpToDate(vFile);
Document document = FileDocumentManager.getInstance().getCachedDocument(vFile);
boolean saved =
document == null || !FileDocumentManager.getInstance().isDocumentUnsaved(document);
final List<SerializedStubTree> datas =
FileBasedIndex.getInstance()
.getValues(StubUpdatingIndex.INDEX_ID, id, GlobalSearchScope.fileScope(project, vFile));
final int size = datas.size();
if (size == 1) {
SerializedStubTree stubTree = datas.get(0);
if (!stubTree.contentLengthMatches(
vFile.getLength(), getCurrentTextContentLength(project, vFile, document))) {
return processError(
vFile,
"Outdated stub in index: "
+ StubUpdatingIndex.getIndexingStampInfo(vFile)
+ ", doc="
+ document
+ ", docSaved="
+ saved
+ ", wasIndexedAlready="
+ wasIndexedAlready
+ ", queried at "
+ vFile.getTimeStamp(),
null);
}
Stub stub;
try {
stub = stubTree.getStub(false);
} catch (SerializerNotFoundException e) {
return processError(
vFile, "No stub serializer: " + vFile.getPresentableUrl() + ": " + e.getMessage(), e);
}
ObjectStubTree tree =
stub instanceof PsiFileStub
? new StubTree((PsiFileStub) stub)
: new ObjectStubTree((ObjectStubBase) stub, true);
tree.setDebugInfo("created from index");
return tree;
} else if (size != 0) {
return processError(
vFile,
"Twin stubs: "
+ vFile.getPresentableUrl()
+ " has "
+ size
+ " stub versions. Should only have one. id="
+ id,
null);
}
return null;
}