Revert "SERVER-5905 Add collStats aggregation stage"

This reverts commit a22d2843ccab7f0333434d1124358c5c182427f6.

1 files changed, 0 insertions, 98 deletions

diff --git a/src/mongo/db/pipeline/document_source_coll_stats.cpp b/src/mongo/db/pipeline/document_source_coll_stats.cpp
deleted file mode 100644
index ab95e1d08d3..00000000000
--- a/src/mongo/db/pipeline/document_source_coll_stats.cpp
+++ /dev/null
@@ -1,98 +0,0 @@
-/**
- * Copyright (C) 2016 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/db/pipeline/document_source.h"
-
-#include "mongo/bson/bsonobj.h"
-#include "mongo/db/stats/top.h"
-#include "mongo/util/time_support.h"
-
-using boost::intrusive_ptr;
-
-namespace mongo {
-
-REGISTER_DOCUMENT_SOURCE(collStats, DocumentSourceCollStats::createFromBson);
-
-const char* DocumentSourceCollStats::getSourceName() const {
-    return "$collStats";
-}
-
-intrusive_ptr<DocumentSource> DocumentSourceCollStats::createFromBson(
-    BSONElement specElem, const intrusive_ptr<ExpressionContext>& pExpCtx) {
-    uassert(40166,
-            str::stream() << "$collStats must take a nested object but found: " << specElem,
-            specElem.type() == BSONType::Object);
-    intrusive_ptr<DocumentSourceCollStats> collStats(new DocumentSourceCollStats(pExpCtx));
-
-    for (const auto& elem : specElem.embeddedObject()) {
-        StringData fieldName = elem.fieldNameStringData();
-
-        if (fieldName == "latencyStats") {
-            uassert(40167,
-                    str::stream() << "latencyStats argument must be an object, but found: " << elem,
-                    elem.type() == BSONType::Object);
-            collStats->_latencySpecified = true;
-        } else {
-            uasserted(40168, str::stream() << "unrecognized option to $collStats: " << fieldName);
-        }
-    }
-
-    return collStats;
-}
-
-boost::optional<Document> DocumentSourceCollStats::getNext() {
-    if (_finished) {
-        return boost::none;
-    }
-
-    _finished = true;
-
-    BSONObjBuilder builder;
-
-    builder.appendDate("localTime", jsTime());
-    if (_latencySpecified) {
-        _mongod->appendLatencyStats(pExpCtx->ns, &builder);
-    }
-
-    return Document(builder.obj());
-}
-
-bool DocumentSourceCollStats::isValidInitialSource() const {
-    return true;
-}
-
-Value DocumentSourceCollStats::serialize(bool explain) const {
-    if (_latencySpecified) {
-        return Value(DOC(getSourceName() << DOC("latencyStats" << Document())));
-    }
-    return Value(DOC(getSourceName() << Document()));
-}
-
-}  // namespace mongo