jsonlayout.h

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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_JSON_LAYOUT_H
#define _LOG4CXX_JSON_LAYOUT_H

#include <log4cxx/layout.h>
#include <log4cxx/helpers/iso8601dateformat.h>
#include <log4cxx/spi/loggingevent.h>

#if defined(_MSC_VER)
    #pragma warning ( push )
    #pragma warning ( disable: 4251 )
#endif


namespace log4cxx
{
class LOG4CXX_EXPORT JSONLayout : public Layout
{
    private:
        // Print no location info by default
        bool locationInfo; //= false
        bool prettyPrint; //= false

        helpers::ISO8601DateFormat dateFormat;

    protected:

        LogString ppIndentL1;
        LogString ppIndentL2;

        void appendQuotedEscapedString(LogString& buf, const LogString& input) const;
        void appendSerializedMDC(LogString& buf,
            const spi::LoggingEventPtr& event) const;
        void appendSerializedNDC(LogString& buf,
            const spi::LoggingEventPtr& event) const;
        void appendSerializedLocationInfo(LogString& buf,
            const spi::LoggingEventPtr& event, log4cxx::helpers::Pool& p) const;

    public:
        DECLARE_LOG4CXX_OBJECT(JSONLayout)
        BEGIN_LOG4CXX_CAST_MAP()
        LOG4CXX_CAST_ENTRY(JSONLayout)
        LOG4CXX_CAST_ENTRY_CHAIN(Layout)
        END_LOG4CXX_CAST_MAP()

        JSONLayout();

        inline void setLocationInfo(bool locationInfoFlag)
        {
            this->locationInfo = locationInfoFlag;
        }


        inline bool getLocationInfo() const
        {
            return locationInfo;
        }

        inline void setPrettyPrint(bool prettyPrintFlag)
        {
            this->prettyPrint = prettyPrintFlag;
        }

        inline bool getPrettyPrint() const
        {
            return prettyPrint;
        }


        virtual LogString getContentType() const
        {
            return LOG4CXX_STR("application/json");
        }

        virtual void activateOptions(log4cxx::helpers::Pool& /* p */) {}

        virtual void setOption(const LogString& option, const LogString& value);

        virtual void format(LogString& output,
            const spi::LoggingEventPtr& event, log4cxx::helpers::Pool& pool) const;

        virtual bool ignoresThrowable() const
        {
            return false;
        }

}; // class JSONLayout
LOG4CXX_PTR_DEF(JSONLayout);
}  // namespace log4cxx

#if defined(_MSC_VER)
    #pragma warning (pop)
#endif

#endif // _LOG4CXX_JSON_LAYOUT_H