/*
 *   Imp for the CEP error
 *   Copyright (C) Michael Still                    2002
 *   Copyright (C) Blake Swadling                   2002
 *   Copyright (C) Kristy Van Der Vlist             2002 
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "genError.h"
#include "verbosity.h"
#include "utility.h"

genError::genError ()
{
  m_message = "";
  m_level = genError::sevOk;
  m_actioned = true;
}

genError::genError (const string & msg)
{
  m_message = msg;
  m_level = genError::sevWarning;
  m_actioned = false;
}

genError::genError (const string & msg, genError::severity level)
{
  m_message = msg;
  m_level = level;
  m_actioned = false;
}

bool
  genError::m_handlerInstalled =
  false;
genErrorHandler *
  genError::m_handler =
  NULL;

genError::~genError ()
{
  if (!m_actioned)
    debug(dlInformational, string("Error was not actioned: ") + m_message);
}

void
genError::addErrorHandler (genErrorHandler & h)
{
  if (!m_handlerInstalled)
    {
      m_handler = &h;
      m_handlerInstalled = true;
    }
}

void
genError::init ()
{
  if ((m_message != "") && (m_actioned == false))
    {
      debug(dlInformational, string("Error was not actioned: ") + m_message);
    }

  m_actioned = false;
  m_level = genError::sevOk;
  m_message = "";
}

void
genError::setError (const string & msg, genError::severity level)
{
  m_message = msg;
  m_level = level;
  m_actioned = false;
}

void
genError::removeErrorHandler ()
{
  if (m_handlerInstalled)
    {
      delete m_handler;
      m_handlerInstalled = false;
    }
}

bool
genError::isReal ()
{
  m_actioned = true;
  return m_message != "";
}

void
genError::clear ()
{
  m_actioned = true;
  m_message = "";
}

void
genError::log ()
{
  if (m_handler != NULL)
    m_handler->logError (*this);
  m_actioned = true;
}

void
genError::display ()
{
  if (m_handler != NULL)
    {
      if (isReal ())
	{
	  m_handler->displayError (*this);
	}
    }
  m_actioned = true;
}

int
genError::getSeverity ()
{
  return m_level;
}

string & genError::getMessage ()
{
  return m_message;
}

string
genError::getTitle ()
{
  switch (getSeverity ())
    {
    case sevOk:
      return "Ok";

    case sevDebug:
      return "Debug";

    case sevInformational:
      return "Informational";

    case sevWarning:
      return "Warning";

    case sevErrorRecoverable:
      return "Recoverable Error";

    case sevErrorFatal:
      return "Fatal error";

    default:
      return "UNKNOWN ERROR LEVEL";
    }
}

void
genError::doTerminate ()
{
  if (m_level == sevErrorFatal)
    exit (-1);
}