| /* |
| * 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 _LOG4CXX_HELPERS_ONLY_ONCE_ERROR_HANDLER_H |
| #define _LOG4CXX_HELPERS_ONLY_ONCE_ERROR_HANDLER_H |
| |
| #include <log4cxx/spi/errorhandler.h> |
| #include <log4cxx/helpers/object.h> |
| |
| #ifdef _MSC_VER |
| #pragma warning ( push ) |
| #pragma warning (disable : 4251) // ::std::exception needs to have dll-interface |
| #endif |
| |
| namespace log4cxx |
| { |
| namespace helpers |
| { |
| /** |
| The <code>OnlyOnceErrorHandler</code> implements log4cxx's default |
| error handling policy which consists of emitting a message for the |
| first error in an appender and ignoring all following errors. |
| |
| <p>The error message is printed on <code>System.err</code>. |
| |
| <p>This policy aims at protecting an otherwise working application |
| from being flooded with error messages when logging fails |
| */ |
| class LOG4CXX_EXPORT OnlyOnceErrorHandler : |
| public virtual spi::ErrorHandler, |
| public virtual Object |
| { |
| private: |
| LogString WARN_PREFIX; |
| LogString ERROR_PREFIX; |
| mutable bool firstTime; |
| |
| public: |
| DECLARE_LOG4CXX_OBJECT(OnlyOnceErrorHandler) |
| BEGIN_LOG4CXX_CAST_MAP() |
| LOG4CXX_CAST_ENTRY(spi::OptionHandler) |
| LOG4CXX_CAST_ENTRY(spi::ErrorHandler) |
| END_LOG4CXX_CAST_MAP() |
| |
| OnlyOnceErrorHandler(); |
| |
| /** |
| Does not do anything. |
| */ |
| void setLogger(const LoggerPtr& logger); |
| |
| |
| /** |
| No options to activate. |
| */ |
| void activateOptions(log4cxx::helpers::Pool& p); |
| void setOption(const LogString& option, const LogString& value); |
| |
| |
| /** |
| Prints the message and the stack trace of the exception on |
| <code>System.err</code>. */ |
| void error(const LogString& message, const std::exception& e, |
| int errorCode) const; |
| /** |
| Prints the message and the stack trace of the exception on |
| <code>System.err</code>. |
| */ |
| void error(const LogString& message, const std::exception& e, |
| int errorCode, const spi::LoggingEventPtr& event) const; |
| |
| /** |
| Print a the error message passed as parameter on |
| <code>System.err</code>. |
| */ |
| void error(const LogString& message) const; |
| |
| /** |
| Does not do anything. |
| */ |
| void setAppender(const AppenderPtr& appender); |
| |
| /** |
| Does not do anything. |
| */ |
| void setBackupAppender(const AppenderPtr& appender); |
| }; |
| } // namespace helpers |
| } // namespace log4cxx |
| |
| #if defined(_MSC_VER) |
| #pragma warning (pop) |
| #endif |
| |
| #endif //_LOG4CXX_HELPERS_ONLY_ONCE_ERROR_HANDLER_H |
| |