2 * Copyright 2004-present Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 #include <unordered_map>
21 #include <folly/Optional.h>
22 #include <folly/Range.h>
27 * Configuration for a LogHandler
29 class LogHandlerConfig {
31 using Options = std::unordered_map<std::string, std::string>;
34 explicit LogHandlerConfig(StringPiece type);
35 explicit LogHandlerConfig(Optional<StringPiece> type);
36 LogHandlerConfig(StringPiece type, Options options);
37 LogHandlerConfig(Optional<StringPiece> type, Options options);
40 * Update this LogHandlerConfig object by merging in settings from another
43 * The other LogHandlerConfig must not have a type set.
45 void update(const LogHandlerConfig& other);
47 bool operator==(const LogHandlerConfig& other) const;
48 bool operator!=(const LogHandlerConfig& other) const;
51 * The handler type name.
53 * If this field is unset than this configuration object is intended to be
54 * used to update an existing LogHandler object. This field must always
55 * be set in the configuration for all existing LogHandler objects.
57 Optional<std::string> type;