| // ********************************************************************** |
| // @@@ START COPYRIGHT @@@ |
| // |
| // 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. |
| // |
| // @@@ END COPYRIGHT @@@ |
| // ********************************************************************** |
| |
| #ifndef _HDFSLOGGER_H_ |
| #define _HDFSLOGGER_H_ |
| |
| #include <CommonLogger.h> |
| |
| extern const char CAT_JNI_TOP[]; |
| extern const char CAT_ORC_FILE_READER[]; |
| extern const char CAT_SEQ_FILE_READER[]; |
| extern const char CAT_SEQ_FILE_WRITER[]; |
| extern const char CAT_HBASE[]; |
| |
| /** |
| * A logging class for MVQR. This is a singleton class, the sole instance |
| * being accessible via the #instance function. |
| ************************************************************************** |
| */ |
| class HdfsLogger : public CommonLogger |
| { |
| public: |
| |
| /** |
| * Initializes log4cxx by using the configuration file. |
| * If the path given is relative (does not start with a |
| * slash), it is appended to the $TRAF_HOME environment variable. |
| * If the configuration file is not found, perform hard-coded |
| * default configuration. |
| * @param configFileName name of the log4cxx configuration file. |
| * @return FALSE if the configuration file is not found. |
| */ |
| virtual NABoolean initLog4cxx(const char* configFileName); |
| |
| /** |
| * Returns a reference to the %QRLogger singelton instance in use. |
| * @return Reference to the singleton instance of this class. |
| */ |
| static HdfsLogger& instance(); |
| |
| protected: |
| |
| void initCategory(const char* cat, log4cxx::Priority::PriorityLevel defaultPriority); |
| |
| private: |
| /** |
| * Creates the single instance of this class, with logging initially enabled. |
| * Append mode must be used to prevent separate processes from overwriting |
| * each other's logged messages. |
| */ |
| HdfsLogger(); |
| |
| virtual ~HdfsLogger() {}; |
| HdfsLogger(const HdfsLogger&); |
| HdfsLogger& operator=(const HdfsLogger&); |
| |
| private: |
| |
| /** The appender. */ |
| log4cxx::Appender *fileAppender_; |
| |
| }; // HdfsLogger |
| |
| /** |
| * Define used to enable tracing for a given function. When in debug mode, it |
| * expands to a declaration of a CommonTracer object, which will cause function |
| * entry/exit messages to be posted to the log. |
| * |
| * @param fn Text to be incorporated into the entry/exit messages, typically |
| * the name of the function. |
| * @see CommonTracer |
| */ |
| #ifdef _DEBUG |
| #define QRTRACER(fn) CommonTracer _tracer_(fn, QRLogger::instance(), CAT_QR_TRACER) |
| #else |
| #define QRTRACER(fn) |
| #endif |
| |
| |
| /** |
| * Exception thrown when an error in the program logic is found. |
| */ |
| class QRLogicException : public QRException |
| { |
| public: |
| /** |
| * Creates an exception with text consisting of the passed template filled in |
| * with the values of the other arguments. |
| * |
| * @param[in] msgTemplate Template for construction of the full message; |
| * contains printf-style placeholders for arguments, |
| * passed as part of a variable argument list. |
| * @param[in] ... Variable argument list, consisting of a value for each |
| * placeholder in the message template. |
| */ |
| QRLogicException(const char *msgTemplate ...) |
| : QRException() |
| { |
| qrBuildMessage(msgTemplate, msgBuffer_); |
| } |
| |
| virtual ~QRLogicException() |
| {} |
| |
| }; //QRLogicException |
| |
| #endif /* _QRLOGGER_H_ */ |