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/usr/include/log4cxx/helpers/onlyonceerrorhandler.h is in liblog4cxx-dev 0.10.0-13ubuntu2.

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/*
 * 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/objectimpl.h>

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 ObjectImpl
                {
                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();
                        void addRef() const;
                        void releaseRef() const;

                        /**
                         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

#endif //_LOG4CXX_HELPERS_ONLY_ONCE_ERROR_HANDLER_H