void batchErrorToLastError( const BatchedCommandRequest& request,
const BatchedCommandResponse& response,
LastError* error ) {
scoped_ptr<BatchedErrorDetail> topLevelError;
BatchedErrorDetail* lastBatchError = NULL;
if ( !response.getOk() ) {
int code = response.getErrCode();
// Check for batch error
// We don't care about write concern errors, these happen in legacy mode in GLE
if ( code != ErrorCodes::WriteConcernFailed && !response.isErrDetailsSet() ) {
// Top-level error, all writes failed
topLevelError.reset( new BatchedErrorDetail );
buildErrorFromResponse( response, topLevelError.get() );
lastBatchError = topLevelError.get();
}
else if ( response.isErrDetailsSet() ) {
// The last error in the batch is always reported - this matches expected COE
// semantics for insert batches and works for single writes
lastBatchError = response.getErrDetails().back();
}
}
// Record an error if one exists
if ( lastBatchError ) {
error->raiseError( lastBatchError->getErrCode(),
lastBatchError->getErrMessage().c_str() );
return;
}
// Record write stats otherwise
// NOTE: For multi-write batches, our semantics change a little because we don't have
// un-aggregated "n" stats.
if ( request.getBatchType() == BatchedCommandRequest::BatchType_Update ) {
BSONObj upsertedId;
if ( response.isSingleUpsertedSet() ) upsertedId = response.getSingleUpserted();
else if( response.isUpsertDetailsSet() ) {
// Only report the very last item's upserted id if applicable
if ( response.getUpsertDetails().back()->getIndex() + 1
== static_cast<int>( request.sizeWriteOps() ) ) {
upsertedId = response.getUpsertDetails().back()->getUpsertedID();
}
}
int numUpserted = 0;
if ( response.isSingleUpsertedSet() )
++numUpserted;
else if ( response.isUpsertDetailsSet() )
numUpserted += response.sizeUpsertDetails();
int numUpdated = response.getN() - numUpserted;
dassert( numUpdated >= 0 );
error->recordUpdate( numUpdated > 0, response.getN(), upsertedId );
}
else if ( request.getBatchType() == BatchedCommandRequest::BatchType_Delete ) {
error->recordDelete( response.getN() );
}
}
static void cloneBatchErrorFrom( const BatchedErrorDetail& details,
BatchedCommandResponse* response ) {
response->setErrCode( details.getErrCode() );
if ( details.isErrInfoSet() ) response->setErrInfo( details.getErrInfo() );
response->setErrMessage( details.getErrMessage() );
}