/** Initialize this index, assuming that it has not already been initialized. */
public void initializeIndex() {
synchronized (indexStore) {
if (hasBeenInitialized) {
return;
}
hasBeenInitialized = true;
indexStore.clear();
if (!initializeIndexFrom(getIndexFile())) {
if (DartCoreDebug.TRACE_INDEX_STATISTICS) {
logIndexStats("Clearing index after failing to read from index file");
}
indexStore.clear();
if (!initializeBundledLibraries()) {
if (DartCoreDebug.TRACE_INDEX_STATISTICS) {
logIndexStats("Failed to initialize bundled libraries");
}
return;
}
if (!indexUserLibraries()) {
if (DartCoreDebug.TRACE_INDEX_STATISTICS) {
logIndexStats("Clearing index after failing to index user libraries");
}
indexStore.clear();
initializeBundledLibraries();
}
}
if (DartCoreDebug.TRACE_INDEX_STATISTICS) {
logIndexStats("After initializing the index");
}
}
}
/**
* Initialize this index to contain information about the bundled libraries. The index store is
* expected to have been cleared before invoking this method.
*
* @return {@code true} if the bundled libraries were successfully indexed
*/
private boolean initializeBundledLibraries() {
synchronized (indexStore) {
hasBeenInitialized = true;
if (!initializeIndexFrom(getInitialIndexFile())) {
if (DartCoreDebug.TRACE_INDEX_STATISTICS) {
logIndexStats("Clearing index after failing to read from initial index file");
}
indexStore.clear();
if (!indexBundledLibraries()) {
if (DartCoreDebug.TRACE_INDEX_STATISTICS) {
logIndexStats("Clearing index after failing to index bundled libraries");
}
indexStore.clear();
return false;
}
// TODO(brianwilkerson) Restore the following line once we figure out how to know that the
// bundled libraries (and only the bundled libraries) have been indexed.
// writeIndexTo(getInitialIndexFile());
}
}
return true;
}
