| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| |
| #ifndef IMPALA_UTIL_LOGGING_SUPPORT_H |
| #define IMPALA_UTIL_LOGGING_SUPPORT_H |
| |
| #include "gen-cpp/Logging_types.h" |
| |
| namespace impala { |
| |
| class Webserver; |
| |
| /// Registers the required native logging functions with JNI. This allows the Java log4j |
| /// log messages to be forwarded to Glog. Also loads the JNI helper methods to dynamically |
| /// change these Java log levels. |
| void InitJvmLoggingSupport(); |
| |
| /// Helper function to convert a command line logging flag value (input as an int) to the |
| /// matching TLogLevel enum value. |
| TLogLevel::type FlagToTLogLevel(int flag); |
| |
| /// Registers the call back methods for handling dynamic log level changes. Since every |
| /// daemon need not include an embedded jvm, dynamic log4j configuration is supported only |
| /// when register_log4j_handlers is true. |
| void RegisterLogLevelCallbacks(Webserver* webserver, bool register_log4j_handlers); |
| |
| class LoggingSupport { |
| public: |
| /// Helper function for log rotation that deletes all files matching the path pattern |
| /// except for the max_log_files newest. If max_log_files is <= 0, no files will |
| /// be deleted. |
| static void DeleteOldLogs(const std::string& path_pattern, int max_log_files); |
| }; |
| |
| } |
| #endif |