summaryrefslogtreecommitdiff
path: root/src/mongo/logger/appender.h
blob: a14bc5b7cc36abd5057420a8be1f66c771ceae12 (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
/**
 *    Copyright (C) 2018-present MongoDB, Inc.
 *
 *    This program is free software: you can redistribute it and/or modify
 *    it under the terms of the Server Side Public License, version 1,
 *    as published by MongoDB, Inc.
 *
 *    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
 *    Server Side Public License for more details.
 *
 *    You should have received a copy of the Server Side Public License
 *    along with this program. If not, see
 *    <http://www.mongodb.com/licensing/server-side-public-license>.
 *
 *    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 Server Side 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.
 */

#pragma once

#include "mongo/base/status.h"

namespace mongo {
namespace logger {

/**
 * Interface for sinks in a logging system.  The core of logging is when events of type E are
 * appended to instances of Appender<E>.
 *
 * Example concrete instances are ConsoleAppender<E>, SyslogAppender<E> and
 * RotatableFileAppender<E>.
 */
template <typename E>
class Appender {
public:
    typedef E Event;

    virtual ~Appender() {}

    /**
     * Appends "event", returns Status::OK() on success.
     */
    virtual Status append(const Event& event) = 0;
};

}  // namespace logger
}  // namespace mongo