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/**
* Copyright (C) 2013-2014 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include <set>
#include <vector>
#include "mongo/base/error_codes.h"
#include "mongo/base/status.h"
#include "mongo/db/sorter/sorter.h"
#include "mongo/db/index/btree_based_access_method.h"
#include "mongo/db/index/index_access_method.h"
#include "mongo/db/index/index_descriptor.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/storage/sorted_data_interface.h"
namespace mongo {
class BtreeBasedBulkAccessMethod : public IndexAccessMethod {
public:
/**
* Does not take ownership of any pointers.
* All pointers must outlive 'this'.
*/
BtreeBasedBulkAccessMethod(OperationContext* txn,
BtreeBasedAccessMethod* real,
SortedDataInterface* interface,
const IndexDescriptor* descriptor);
~BtreeBasedBulkAccessMethod() {}
virtual Status insert(OperationContext* txn,
const BSONObj& obj,
const RecordId& loc,
const InsertDeleteOptions& options,
int64_t* numInserted);
Status commit(std::set<RecordId>* dupsToDrop, bool mayInterrupt, bool dupsAllowed);
// Exposed for testing.
static ExternalSortComparison* getComparison(int version, const BSONObj& keyPattern);
//
// Stuff below here is a no-op of one form or another.
//
virtual Status commitBulk(IndexAccessMethod* bulk,
bool mayInterrupt,
bool dupsAllowed,
std::set<RecordId>* dups) {
invariant(this == bulk);
return Status::OK();
}
virtual Status touch(OperationContext* txn, const BSONObj& obj) {
return _notAllowed();
}
virtual Status touch(OperationContext* txn) const {
return _notAllowed();
}
virtual Status validate(OperationContext* txn, bool full, int64_t* numKeys, BSONObjBuilder* output) {
return _notAllowed();
}
virtual bool appendCustomStats(OperationContext* txn, BSONObjBuilder* output, double scale)
const {
return false;
}
virtual Status remove(OperationContext* txn,
const BSONObj& obj,
const RecordId& loc,
const InsertDeleteOptions& options,
int64_t* numDeleted) {
return _notAllowed();
}
virtual Status validateUpdate(OperationContext* txn,
const BSONObj& from,
const BSONObj& to,
const RecordId& loc,
const InsertDeleteOptions& options,
UpdateTicket* ticket) {
return _notAllowed();
}
virtual long long getSpaceUsedBytes( OperationContext* txn ) const {
return -1;
}
virtual Status update(OperationContext* txn,
const UpdateTicket& ticket,
int64_t* numUpdated) {
return _notAllowed();
}
virtual Status newCursor(OperationContext*txn,
const CursorOptions& opts,
IndexCursor** out) const {
return _notAllowed();
}
virtual Status initializeAsEmpty(OperationContext* txn) {
return _notAllowed();
}
virtual IndexAccessMethod* initiateBulk(OperationContext* txn) {
return NULL;
}
OperationContext* getOperationContext() { return _txn; }
private:
typedef Sorter<BSONObj, RecordId> BSONObjExternalSorter;
Status _notAllowed() const {
return Status(ErrorCodes::InternalError, "cannot use bulk for this yet");
}
// Not owned here.
BtreeBasedAccessMethod* _real;
// Not owned here.
SortedDataInterface* _interface;
// The external sorter.
boost::scoped_ptr<BSONObjExternalSorter> _sorter;
// How many docs are we indexing?
unsigned long long _docsInserted;
// And how many keys?
unsigned long long _keysInserted;
// Does any document have >1 key?
bool _isMultiKey;
OperationContext* _txn;
};
} // namespace mongo
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