void MMAPV1DatabaseCatalogEntry::_removeNamespaceFromNamespaceCollection(OperationContext* txn,
StringData ns) {
if (nsToCollectionSubstring(ns) == "system.namespaces") {
// system.namespaces holds all the others, so it is not explicitly listed in the catalog.
return;
}
auto entry = _collections.find(ns.toString());
if (entry == _collections.end()) {
return;
}
RecordStoreV1Base* rs = _getNamespaceRecordStore();
invariant(rs);
rs->deleteRecord(txn, entry->second->catalogEntry->getNamespacesRecordId());
}
void MMAPV1DatabaseCatalogEntry::_removeNamespaceFromNamespaceCollection( OperationContext* txn,
const StringData& ns ) {
if ( nsToCollectionSubstring( ns ) == "system.namespaces" ) {
// system.namespaces holds all the others, so it is not explicitly listed in the catalog.
return;
}
RecordStoreV1Base* rs = _getNamespaceRecordStore();
invariant( rs );
scoped_ptr<RecordIterator> it( rs->getIterator(txn) );
while ( !it->isEOF() ) {
DiskLoc loc = it->getNext();
BSONObj entry = it->dataFor( loc ).toBson();
BSONElement name = entry["name"];
if ( name.type() == String && name.String() == ns ) {
rs->deleteRecord( txn, loc );
break;
}
}
}
Status MMAPV1DatabaseCatalogEntry::renameCollection( OperationContext* txn,
const StringData& fromNS,
const StringData& toNS,
bool stayTemp ) {
Status s = _renameSingleNamespace( txn, fromNS, toNS, stayTemp );
if ( !s.isOK() )
return s;
NamespaceDetails* details = _namespaceIndex.details( toNS );
invariant( details );
RecordStoreV1Base* systemIndexRecordStore = _getIndexRecordStore( txn );
scoped_ptr<RecordIterator> it( systemIndexRecordStore->getIterator() );
while ( !it->isEOF() ) {
DiskLoc loc = it->getNext();
const Record* rec = it->recordFor( loc );
BSONObj oldIndexSpec( rec->data() );
if ( fromNS != oldIndexSpec["ns"].valuestrsafe() )
continue;
BSONObj newIndexSpec;
{
BSONObjBuilder b;
BSONObjIterator i( oldIndexSpec );
while( i.more() ) {
BSONElement e = i.next();
if ( strcmp( e.fieldName(), "ns" ) != 0 )
b.append( e );
else
b << "ns" << toNS;
}
newIndexSpec = b.obj();
}
StatusWith<DiskLoc> newIndexSpecLoc =
systemIndexRecordStore->insertRecord( txn,
newIndexSpec.objdata(),
newIndexSpec.objsize(),
-1 );
if ( !newIndexSpecLoc.isOK() )
return newIndexSpecLoc.getStatus();
const string& indexName = oldIndexSpec.getStringField( "name" );
{
// fix IndexDetails pointer
NamespaceDetailsCollectionCatalogEntry ce( toNS, details,
_getIndexRecordStore( txn ), this );
int indexI = ce._findIndexNumber( indexName );
IndexDetails& indexDetails = details->idx(indexI);
*txn->recoveryUnit()->writing(&indexDetails.info) = newIndexSpecLoc.getValue(); // XXX: dur
}
{
// move underlying namespac
string oldIndexNs = IndexDescriptor::makeIndexNamespace( fromNS, indexName );
string newIndexNs = IndexDescriptor::makeIndexNamespace( toNS, indexName );
Status s = _renameSingleNamespace( txn, oldIndexNs, newIndexNs, false );
if ( !s.isOK() )
return s;
}
systemIndexRecordStore->deleteRecord( txn, loc );
}
return Status::OK();
}
Status MMAPV1DatabaseCatalogEntry::renameCollection(OperationContext* txn,
StringData fromNS,
StringData toNS,
bool stayTemp) {
Status s = _renameSingleNamespace(txn, fromNS, toNS, stayTemp);
if (!s.isOK())
return s;
NamespaceDetails* details = _namespaceIndex.details(toNS);
invariant(details);
RecordStoreV1Base* systemIndexRecordStore = _getIndexRecordStore();
auto cursor = systemIndexRecordStore->getCursor(txn);
while (auto record = cursor->next()) {
BSONObj oldIndexSpec = record->data.releaseToBson();
if (fromNS != oldIndexSpec["ns"].valuestrsafe())
continue;
BSONObj newIndexSpec;
{
BSONObjBuilder b;
BSONObjIterator i(oldIndexSpec);
while (i.more()) {
BSONElement e = i.next();
if (strcmp(e.fieldName(), "ns") != 0)
b.append(e);
else
b << "ns" << toNS;
}
newIndexSpec = b.obj();
}
StatusWith<RecordId> newIndexSpecLoc = systemIndexRecordStore->insertRecord(
txn, newIndexSpec.objdata(), newIndexSpec.objsize(), false);
if (!newIndexSpecLoc.isOK())
return newIndexSpecLoc.getStatus();
const std::string& indexName = oldIndexSpec.getStringField("name");
{
// Fix the IndexDetails pointer.
int indexI = getCollectionCatalogEntry(toNS)->_findIndexNumber(txn, indexName);
IndexDetails& indexDetails = details->idx(indexI);
*txn->recoveryUnit()->writing(&indexDetails.info) =
DiskLoc::fromRecordId(newIndexSpecLoc.getValue());
}
{
// Move the underlying namespace.
std::string oldIndexNs = IndexDescriptor::makeIndexNamespace(fromNS, indexName);
std::string newIndexNs = IndexDescriptor::makeIndexNamespace(toNS, indexName);
Status s = _renameSingleNamespace(txn, oldIndexNs, newIndexNs, false);
if (!s.isOK())
return s;
}
systemIndexRecordStore->deleteRecord(txn, record->id);
}
return Status::OK();
}