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.
23 #include <folly/experimental/logging/LogHandler.h>
24 #include <folly/experimental/logging/LogHandlerConfig.h>
25 #include <folly/experimental/logging/LogHandlerFactory.h>
26 #include <folly/experimental/logging/LogMessage.h>
31 * A LogHandler that simply keeps a vector of all LogMessages it receives.
33 * This class is not thread-safe. It is intended to be used in single-threaded
36 class TestLogHandler : public LogHandler {
38 using Options = LogHandlerConfig::Options;
40 TestLogHandler() : config_{"test"} {}
41 explicit TestLogHandler(LogHandlerConfig config)
42 : config_{std::move(config)} {}
44 std::vector<std::pair<LogMessage, const LogCategory*>>& getMessages() {
49 const LogMessage& message,
50 const LogCategory* handlerCategory) override {
51 messages_.emplace_back(message, handlerCategory);
54 void flush() override {
58 uint64_t getFlushCount() const {
62 LogHandlerConfig getConfig() const override {
66 void setOptions(const Options& options) {
67 config_.options = options;
71 std::vector<std::pair<LogMessage, const LogCategory*>> messages_;
72 uint64_t flushCount_{0};
73 std::map<std::string, std::string> options_;
74 LogHandlerConfig config_;
78 * A LogHandlerFactory to create TestLogHandler objects.
80 class TestLogHandlerFactory : public LogHandlerFactory {
82 explicit TestLogHandlerFactory(StringPiece type) : type_{type.str()} {}
84 StringPiece getType() const override {
88 std::shared_ptr<LogHandler> createHandler(const Options& options) override;
90 std::shared_ptr<LogHandler> updateHandler(
91 const std::shared_ptr<LogHandler>& existingHandler,
92 const Options& options) override;