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Diffstat (limited to 'src/main/include/log4cxx/varia/fallbackerrorhandler.h')
-rw-r--r-- | src/main/include/log4cxx/varia/fallbackerrorhandler.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/src/main/include/log4cxx/varia/fallbackerrorhandler.h b/src/main/include/log4cxx/varia/fallbackerrorhandler.h new file mode 100644 index 0000000..63b6fc8 --- /dev/null +++ b/src/main/include/log4cxx/varia/fallbackerrorhandler.h @@ -0,0 +1,116 @@ +/* + * 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_VARIA_FALLBACK_ERROR_HANDLER_H +#define _LOG4CXX_VARIA_FALLBACK_ERROR_HANDLER_H + +#include <log4cxx/spi/errorhandler.h> +#include <log4cxx/helpers/objectimpl.h> +#include <log4cxx/appender.h> +#include <log4cxx/logger.h> +#include <vector> + +namespace log4cxx +{ + namespace varia + { + /** + The <code>FallbackErrorHandler</code> implements the ErrorHandler + interface such that a secondary appender may be specified. This + secondary appender takes over if the primary appender fails for + whatever reason. + + <p>The error message is printed on <code>System.err</code>, and + logged in the new secondary appender. + */ + class LOG4CXX_EXPORT FallbackErrorHandler : + public virtual spi::ErrorHandler, + public virtual helpers::ObjectImpl + { + private: + AppenderPtr backup; + AppenderPtr primary; + std::vector<LoggerPtr> loggers; + + public: + DECLARE_LOG4CXX_OBJECT(FallbackErrorHandler) + BEGIN_LOG4CXX_CAST_MAP() + LOG4CXX_CAST_ENTRY(spi::OptionHandler) + LOG4CXX_CAST_ENTRY(spi::ErrorHandler) + END_LOG4CXX_CAST_MAP() + + FallbackErrorHandler(); + void addRef() const; + void releaseRef() const; + + + /** + <em>Adds</em> the logger passed as parameter to the list of + loggers that we need to search for in case of appender failure. + */ + 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 {} + + /** + Return the backup appender. + */ + const AppenderPtr& getBackupAppender() const + { return backup; } + + /** + The appender to which this error handler is attached. + */ + void setAppender(const AppenderPtr& primary); + + /** + Set the backup appender. + */ + void setBackupAppender(const AppenderPtr& backup); + }; + } // namespace varia +} // namespace log4cxx + +#endif //_LOG4CXX_VARIA_FALLBACK_ERROR_HANDLER_H + |