/*

 * 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.

 */

#include <log4cxx/logstring.h>

#include <log4cxx/helpers/syslogwriter.h>

#include <log4cxx/helpers/loglog.h>

#include <log4cxx/helpers/inetaddress.h>

#include <log4cxx/helpers/datagramsocket.h>

#include <log4cxx/helpers/datagrampacket.h>

#include <log4cxx/helpers/transcoder.h>

using namespace LOG4CXX_NS;

using namespace LOG4CXX_NS::helpers;

struct SyslogWriter::SyslogWriterPrivate {

  SyslogWriterPrivate(const LogString& syslogHost1, int syslogHostPort1)

    : syslogHost(syslogHost1), syslogHostPort(syslogHostPort1){}

  LogString syslogHost;

  int syslogHostPort;

  InetAddressPtr address;

  DatagramSocketPtr ds;

};

SyslogWriter::SyslogWriter(const LogString& syslogHost1, int syslogHostPort1)

  : m_priv(std::make_unique<SyslogWriterPrivate>(syslogHost1, syslogHostPort1))

{

  try

  {

    m_priv->address = InetAddress::getByName(syslogHost1);

  }

  catch (UnknownHostException& e)

  {

    LogLog::error(((LogString) LOG4CXX_STR("Could not find ")) + syslogHost1 +

      LOG4CXX_STR(". All logging will FAIL."), e);

  }

  try

  {

    m_priv->ds = DatagramSocket::create();

  }

  catch (SocketException& e)

  {

    LogLog::error(((LogString) LOG4CXX_STR("Could not instantiate DatagramSocket to ")) + syslogHost1 +

      LOG4CXX_STR(". All logging will FAIL."), e);

  }

}

SyslogWriter::~SyslogWriter(){}

void SyslogWriter::write(const LogString& source)

{

  if (m_priv->ds != 0 && m_priv->address != 0)

  {

    LOG4CXX_ENCODE_CHAR(data, source);

    auto packet = std::make_shared<DatagramPacket>(

        (void*) data.data(), (int)data.length(),

        m_priv->address, m_priv->syslogHostPort);

    m_priv->ds->send(packet);

  }

}