/*
 * 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_NT_EVENT_LOG_APPENDER_HEADER_
#define _LOG4CXX_NT_EVENT_LOG_APPENDER_HEADER_

#include <log4cxx/appenderskeleton.h>


namespace log4cxx
{
namespace nt
{
/**
 * Appends log events to NT EventLog.
 */
class LOG4CXX_EXPORT NTEventLogAppender : public AppenderSkeleton
{
    public:
        DECLARE_LOG4CXX_OBJECT(NTEventLogAppender)
        BEGIN_LOG4CXX_CAST_MAP()
        LOG4CXX_CAST_ENTRY(NTEventLogAppender)
        LOG4CXX_CAST_ENTRY_CHAIN(AppenderSkeleton)
        END_LOG4CXX_CAST_MAP()

        NTEventLogAppender();
        NTEventLogAppender(const LogString& server, const LogString& log,
                           const LogString& source, const LayoutPtr& layout);

        virtual ~NTEventLogAppender();

        virtual void activateOptions(log4cxx::helpers::Pool& p);
        virtual void close();
        virtual void setOption(const LogString& option, const LogString& value);

        /**
         * The SocketAppender does not use a layout. Hence, this method
         * returns <code>false</code>.
         *
         */
        bool requiresLayout() const
        {
            return true;
        }

        void setSource(const LogString& source)
        {
            this->source.assign(source);
        }

        const LogString& getSource() const
        {
            return source;
        }

        void setLog(const LogString& log)
        {
            this->log.assign(log);
        }

        const LogString& getLog() const
        {
            return log;
        }

        void setServer(const LogString& server)
        {
            this->server.assign(server);
        }

        const LogString& getServer() const
        {
            return server;
        }


    protected:
        //
        //   these typedef are proxies for the real Win32 definitions
        //     and need to be cast to the global definitions before
        //     use with a Win32 API call
        typedef void SID;
        typedef void* HANDLE;

        virtual void append(const spi::LoggingEventPtr& event, log4cxx::helpers::Pool& p);
        static unsigned short getEventType(const spi::LoggingEventPtr& event);
        static unsigned short getEventCategory(const spi::LoggingEventPtr& event);
        /*
         * Add this source with appropriate configuration keys to the registry.
         */
        void addRegistryInfo();

        // Data
        LogString server;
        LogString log;
        LogString source;
        HANDLE hEventLog;
        SID* pCurrentUserSID;
        static LogString getErrorString(const LogString& function);

    private:
        NTEventLogAppender(const NTEventLogAppender&);
        NTEventLogAppender& operator=(const NTEventLogAppender&);
}; // class NTEventLogAppender

LOG4CXX_PTR_DEF(NTEventLogAppender);

}  // namespace nt
} // namespace log4cxx

#endif //_LOG4CXX_NT_EVENT_LOG_APPENDER_HEADER_