/*
 * 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/filter/stringmatchfilter.h>
#include <log4cxx/spi/loggingevent.h>
#include <log4cxx/helpers/stringhelper.h>
#include <log4cxx/helpers/optionconverter.h>

using namespace log4cxx;
using namespace log4cxx::filter;
using namespace log4cxx::spi;
using namespace log4cxx::helpers;

IMPLEMENT_LOG4CXX_OBJECT(StringMatchFilter)

StringMatchFilter::StringMatchFilter() :
   acceptOnMatch(true),
   stringToMatch()
{
}

void StringMatchFilter::setOption(const LogString& option,
   const LogString& value)
{

   if (StringHelper::equalsIgnoreCase(option,
             LOG4CXX_STR("STRINGTOMATCH"), LOG4CXX_STR("stringtomatch")))
   {
      stringToMatch = value;
   }
   else if (StringHelper::equalsIgnoreCase(option,
             LOG4CXX_STR("ACCEPTONMATCH"), LOG4CXX_STR("acceptonmatch")))
   {
      acceptOnMatch = OptionConverter::toBoolean(value, acceptOnMatch);
   }
}

Filter::FilterDecision StringMatchFilter::decide(
   const log4cxx::spi::LoggingEventPtr& event) const
{
   const LogString& msg = event->getRenderedMessage();

   if(msg.empty() || stringToMatch.empty())
   {
      return Filter::NEUTRAL;
   }


   if( msg.find(stringToMatch) == LogString::npos )
   {
      return Filter::NEUTRAL;
   }
   else
   { // we've got a match
      if(acceptOnMatch)
      {
         return Filter::ACCEPT;
      }
      else
      {
         return Filter::DENY;
      }
   }
}