summaryrefslogtreecommitdiff
path: root/src/mongo/rpc/legacy_reply.cpp
blob: 1dc40c83cd6b17652e338483ae00a2c2456481f9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
/**
 *    Copyright (C) 2015 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/rpc/legacy_reply.h"

#include <utility>

#include "mongo/util/assert_util.h"
#include "mongo/util/mongoutils/str.h"

namespace mongo {
namespace rpc {

    LegacyReply::LegacyReply(const Message* message)
        : _message(std::move(message)) {
        invariant(message->operation() == opReply);

        QueryResult::View qr = _message->singleData().view2ptr();

        // should be checked by caller.
        invariant(qr.msgdata().getOperation() == opReply);

        uassert(ErrorCodes::BadValue,
                str::stream() << "Got legacy command reply with a bad cursorId field,"
                              << " expected a value of 0 but got " << qr.getCursorId(),
                qr.getCursorId() == 0);

        uassert(ErrorCodes::BadValue,
                str::stream() << "Got legacy command reply with a bad nReturned field,"
                              << " expected a value of 1 but got " << qr.getNReturned(),
                qr.getNReturned() == 1);

        uassert(ErrorCodes::BadValue,
                str::stream() << "Got legacy command reply with a bad startingFrom field,"
                              << " expected a value of 0 but got " << qr.getStartingFrom(),
                qr.getStartingFrom() == 0);
        // TODO bson validation
        _commandReply = BSONObj(qr.data());
    }

    const BSONObj& LegacyReply::getMetadata() const {
        return _metadataPlaceholder;
    }

    const BSONObj& LegacyReply::getCommandReply() const {
        return _commandReply;
    }

    DocumentRange LegacyReply::getOutputDocs() const {
        // return empty range
        return DocumentRange{};
    }

}  // namespace rpc
}  // namespace mongo