/**
* Initialize this manager by calling {@link IndexProvider#initialize()} on each of the
* currently-registered providers.
*
* @return the information about the portions of the repository that need to be scanned to
* (re)build indexes; null if no scanning is required
*/
protected synchronized ScanningTasks initialize() {
if (initialized.get()) {
// nothing to do ...
return null;
}
// Initialize each of the providers, removing any that are not properly initialized ...
for (Iterator<Map.Entry<String, IndexProvider>> providerIter = providers.entrySet().iterator();
providerIter.hasNext(); ) {
IndexProvider provider = providerIter.next().getValue();
try {
doInitialize(provider);
} catch (Throwable t) {
if (t.getCause() != null) {
t = t.getCause();
}
repository.error(
t,
JcrI18n.unableToInitializeIndexProvider,
provider.getName(),
repository.name(),
t.getMessage());
providerIter.remove();
}
}
// Re-read the index definitions in case there were disabled index definitions that used the
// now-available provider ...
RepositoryIndexes indexes = readIndexDefinitions();
// Notify the providers of all the index definitions (which we'll treat as "new" since we're
// just starting up) ...
ScanningTasks feedback = new ScanningTasks();
for (Iterator<Map.Entry<String, IndexProvider>> providerIter = providers.entrySet().iterator();
providerIter.hasNext(); ) {
IndexProvider provider = providerIter.next().getValue();
if (provider == null) continue;
final String providerName = provider.getName();
IndexChanges changes = new IndexChanges();
for (IndexDefinition indexDefn : indexes.getIndexDefinitions().values()) {
if (!providerName.equals(indexDefn.getProviderName())) continue;
changes.change(indexDefn);
}
// Even if there are no definitions, we still want to notify each of the providers ...
try {
provider.notify(
changes,
repository.changeBus(),
repository.nodeTypeManager(),
repository.repositoryCache().getWorkspaceNames(),
feedback.forProvider(providerName));
} catch (RuntimeException e) {
logger.error(
e,
JcrI18n.errorNotifyingProviderOfIndexChanges,
providerName,
repository.name(),
e.getMessage());
}
}
// Refresh the index writer ...
refreshIndexWriter();
initialized.set(true);
return feedback;
}
