#if defined(HAVE_CONFIG_H)

#include "config.h"

#endif

#include "rutil/ResipAssert.h"

#include "resip/stack/Headers.hxx"

#include "resip/stack/HeaderFieldValue.hxx"

#include "resip/stack/LazyParser.hxx"

#include "rutil/ParseBuffer.hxx"

#include "rutil/WinLeakCheck.hxx"

using namespace resip;

LazyParser::LazyParser(const HeaderFieldValue& headerFieldValue)

   : mHeaderField(headerFieldValue, HeaderFieldValue::NoOwnership),

      mState(mHeaderField.getBuffer() == 0 ? DIRTY : NOT_PARSED)

{

}

LazyParser::LazyParser(const HeaderFieldValue& headerFieldValue,

                        HeaderFieldValue::CopyPaddingEnum e)

   : mHeaderField(headerFieldValue, e), // Causes ownership to be taken. Oh well

      mState(mHeaderField.getBuffer() == 0 ? DIRTY : NOT_PARSED)

{}

LazyParser::LazyParser(const char* buf, int length) :

   mHeaderField(buf, length),

   mState(buf == 0 ? DIRTY : NOT_PARSED)

{}

LazyParser::LazyParser()

   : mHeaderField(),

      mState(DIRTY)

{

}

LazyParser::LazyParser(const LazyParser& rhs)

   : mHeaderField((rhs.mState==DIRTY ? HeaderFieldValue::Empty : rhs.mHeaderField)), // Pretty cheap when rhs is DIRTY

      mState(rhs.mState)

{}

LazyParser::LazyParser(const LazyParser& rhs,HeaderFieldValue::CopyPaddingEnum e)

   :  mHeaderField((rhs.mState==DIRTY ? HeaderFieldValue::Empty : rhs.mHeaderField), e), // Pretty cheap when rhs is DIRTY

      mState(rhs.mState)

{}

LazyParser::~LazyParser()

{

   clear();

}

LazyParser&

LazyParser::operator=(const LazyParser& rhs)

{

   resip_assert_not_null( &rhs );

   if (this != &rhs)

   {

      clear();

      mState = rhs.mState;

      if (rhs.mState!=DIRTY)

      {

         mHeaderField=rhs.mHeaderField;

      }

   }

   return *this;

}

void

LazyParser::doParse() const

{

   LazyParser* ncThis = const_cast<LazyParser*>(this);

   // .bwc. We assume the worst, and if the parse succeeds, we update.

   ncThis->mState = MALFORMED;

   ParseBuffer pb(mHeaderField.getBuffer(), mHeaderField.getLength(), errorContext());

   ncThis->parse(pb);

   // .bwc. If we get this far without throwing, the parse has succeeded.

   ncThis->mState = WELL_FORMED;

}

bool

LazyParser::isWellFormed() const

{

   try

   {

      checkParsed();

   }

   catch(resip::ParseException&)

   {

   }

   return (mState!=MALFORMED);

}

void

LazyParser::clear()

{

   mHeaderField.clear();

}

EncodeStream&

LazyParser::encode(EncodeStream& str) const

{

   if (mState == DIRTY)

   {

      return encodeParsed(str);

   }

   else

   {

      mHeaderField.encode(str);

      return str;

   }

}

#ifndef  RESIP_USE_STL_STREAMS

EncodeStream&

resip::operator<<(EncodeStream&s, const LazyParser& lp)

{

   lp.encode(s);

   return s; 

}

#endif

std::ostream&

resip::operator<<(std::ostream &s, const LazyParser& lp)

{ 

#ifdef  RESIP_USE_STL_STREAMS

  lp.encode(s);

#else

  //this should only be called for things like cout,cerr, or other streams not supporting

  //other stream encoders, aka MD5Stream

  Data data;

  DataStream stream(data);

  lp.encode(stream);

  stream.flush();

  s << data.c_str();

#endif

   return s; 

}

/* ====================================================================

 * The Vovida Software License, Version 1.0 

 * 

 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.

 * 

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in

 *    the documentation and/or other materials provided with the

 *    distribution.

 * 

 * 3. The names "VOCAL", "Vovida Open Communication Application Library",

 *    and "Vovida Open Communication Application Library (VOCAL)" must

 *    not be used to endorse or promote products derived from this

 *    software without prior written permission. For written

 *    permission, please contact vocal@vovida.org.

 *

 * 4. Products derived from this software may not be called "VOCAL", nor

 *    may "VOCAL" appear in their name, without prior written

 *    permission of Vovida Networks, Inc.

 * 

 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED

 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND

 * NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL VOVIDA

 * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES

 * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE

 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH

 * DAMAGE.

 * 

 * ====================================================================

 * 

 * This software consists of voluntary contributions made by Vovida

 * Networks, Inc. and many individuals on behalf of Vovida Networks,

 * Inc.  For more information on Vovida Networks, Inc., please see

 * <http://www.vovida.org/>.

 *

 */