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/**
* Copyright (C) 2017 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 "mongo/platform/basic.h"
#include "mongo/s/query/document_source_router_adapter.h"
#include "mongo/db/pipeline/document_source.h"
#include "mongo/db/pipeline/expression_context.h"
namespace mongo {
boost::intrusive_ptr<DocumentSourceRouterAdapter> DocumentSourceRouterAdapter::create(
const boost::intrusive_ptr<ExpressionContext>& expCtx,
std::unique_ptr<RouterExecStage> childStage) {
return new DocumentSourceRouterAdapter(expCtx, std::move(childStage));
}
DocumentSource::GetNextResult DocumentSourceRouterAdapter::getNext() {
auto next = uassertStatusOK(_child->next(_execContext));
if (auto nextObj = next.getResult()) {
return Document::fromBsonWithMetaData(*nextObj);
}
return GetNextResult::makeEOF();
}
void DocumentSourceRouterAdapter::doDispose() {
_child->kill(pExpCtx->opCtx);
}
void DocumentSourceRouterAdapter::reattachToOperationContext(OperationContext* opCtx) {
_child->reattachToOperationContext(opCtx);
}
void DocumentSourceRouterAdapter::detachFromOperationContext() {
_child->detachFromOperationContext();
}
Value DocumentSourceRouterAdapter::serialize(
boost::optional<ExplainOptions::Verbosity> explain) const {
invariant(explain); // We shouldn't need to serialize this stage to send it anywhere.
return Value(); // Return the empty value to hide this stage from explain output.
}
std::size_t DocumentSourceRouterAdapter::getNumRemotes() const {
return _child->getNumRemotes();
}
bool DocumentSourceRouterAdapter::remotesExhausted() {
return _child->remotesExhausted();
}
DocumentSourceRouterAdapter::DocumentSourceRouterAdapter(
const boost::intrusive_ptr<ExpressionContext>& expCtx,
std::unique_ptr<RouterExecStage> childStage)
: DocumentSource(expCtx), _child(std::move(childStage)) {}
} // namespace mongo
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