/* <!-- copyright */
/*
 * aria2 - The high speed download utility
 *
 * Copyright (C) 2006 Tatsuhiro Tsujikawa
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * In addition, as a special exception, the copyright holders give
 * permission to link the code of portions of this program with the
 * OpenSSL library under certain conditions as described in each
 * individual source file, and distribute linked combinations
 * including the two.
 * You must obey the GNU General Public License in all respects
 * for all of the code used other than OpenSSL.  If you modify
 * file(s) with this exception, you may extend this exception to your
 * version of the file(s), but you are not obligated to do so.  If you
 * do not wish to do so, delete this exception statement from your
 * version.  If you delete this exception statement from all source
 * files in the program, then also delete it here.
 */
/* copyright --> */
#include "MetalinkParserStateMachine.h"

#include <sstream>
#include <iterator>

#include "MetalinkParserStateImpl.h"
#include "MetalinkParserStateV3Impl.h"
#include "MetalinkParserStateV4Impl.h"
#include "Metalinker.h"
#include "MetalinkEntry.h"

namespace aria2 {

MetalinkParserState* MetalinkParserStateMachine::initialState_ =
  new InitialMetalinkParserState();
MetalinkParserState* MetalinkParserStateMachine::skipTagState_ =
  new SkipTagMetalinkParserState();

MetalinkParserState* MetalinkParserStateMachine::metalinkState_ =
  new MetalinkMetalinkParserState();
MetalinkParserState* MetalinkParserStateMachine::filesState_ =
  new FilesMetalinkParserState();
MetalinkParserState* MetalinkParserStateMachine::fileState_ =
  new FileMetalinkParserState();
MetalinkParserState* MetalinkParserStateMachine::sizeState_ =
  new SizeMetalinkParserState();
MetalinkParserState* MetalinkParserStateMachine::versionState_ =
  new VersionMetalinkParserState();
MetalinkParserState* MetalinkParserStateMachine::languageState_ =
  new LanguageMetalinkParserState();
MetalinkParserState* MetalinkParserStateMachine::osState_ =
  new OSMetalinkParserState();
MetalinkParserState* MetalinkParserStateMachine::verificationState_ =
  new VerificationMetalinkParserState();
MetalinkParserState* MetalinkParserStateMachine::hashState_ =
  new HashMetalinkParserState();
MetalinkParserState* MetalinkParserStateMachine::piecesState_ =
  new PiecesMetalinkParserState();
MetalinkParserState* MetalinkParserStateMachine::pieceHashState_ =
  new PieceHashMetalinkParserState();
MetalinkParserState* MetalinkParserStateMachine::signatureState_ =
  new SignatureMetalinkParserState();
MetalinkParserState* MetalinkParserStateMachine::resourcesState_ =
  new ResourcesMetalinkParserState();
MetalinkParserState* MetalinkParserStateMachine::urlState_ =
  new URLMetalinkParserState();

MetalinkParserState* MetalinkParserStateMachine::metalinkStateV4_ =
  new MetalinkMetalinkParserStateV4();
MetalinkParserState* MetalinkParserStateMachine::fileStateV4_ =
  new FileMetalinkParserStateV4();
MetalinkParserState* MetalinkParserStateMachine::sizeStateV4_ =
  new SizeMetalinkParserStateV4();
MetalinkParserState* MetalinkParserStateMachine::versionStateV4_ =
  new VersionMetalinkParserStateV4();
MetalinkParserState* MetalinkParserStateMachine::languageStateV4_ =
  new LanguageMetalinkParserStateV4();
MetalinkParserState* MetalinkParserStateMachine::osStateV4_ =
  new OSMetalinkParserStateV4();
MetalinkParserState* MetalinkParserStateMachine::hashStateV4_ =
  new HashMetalinkParserStateV4();
MetalinkParserState* MetalinkParserStateMachine::piecesStateV4_ =
  new PiecesMetalinkParserStateV4();
MetalinkParserState* MetalinkParserStateMachine::pieceHashStateV4_ =
  new PieceHashMetalinkParserStateV4();
MetalinkParserState* MetalinkParserStateMachine::signatureStateV4_ =
  new SignatureMetalinkParserStateV4();
MetalinkParserState* MetalinkParserStateMachine::urlStateV4_ =
  new URLMetalinkParserStateV4();
MetalinkParserState* MetalinkParserStateMachine::metaurlStateV4_ =
  new MetaurlMetalinkParserStateV4();

MetalinkParserStateMachine::MetalinkParserStateMachine():
  ctrl_(new MetalinkParserController())
{
  stateStack_.push(initialState_);
}

MetalinkParserStateMachine::~MetalinkParserStateMachine() {}

void MetalinkParserStateMachine::setMetalinkState()
{
  stateStack_.push(metalinkState_);
}

void MetalinkParserStateMachine::setFilesState()
{
  stateStack_.push(filesState_);
}

void MetalinkParserStateMachine::setFileState()
{
  stateStack_.push(fileState_);
}

void MetalinkParserStateMachine::setSizeState()
{
  stateStack_.push(sizeState_);
}

void MetalinkParserStateMachine::setVersionState()
{
  stateStack_.push(versionState_);
}

void MetalinkParserStateMachine::setLanguageState()
{
  stateStack_.push(languageState_);
}

void MetalinkParserStateMachine::setOSState()
{
  stateStack_.push(osState_);
}

void MetalinkParserStateMachine::setVerificationState()
{
  stateStack_.push(verificationState_);
}

void MetalinkParserStateMachine::setHashState()
{
  stateStack_.push(hashState_);
}

void MetalinkParserStateMachine::setPiecesState()
{
  stateStack_.push(piecesState_);
}

void MetalinkParserStateMachine::setPieceHashState()
{
  stateStack_.push(pieceHashState_);
}

void MetalinkParserStateMachine::setSignatureState()
{
  stateStack_.push(signatureState_);
}

void MetalinkParserStateMachine::setResourcesState()
{
  stateStack_.push(resourcesState_);
}

void MetalinkParserStateMachine::setURLState()
{
  stateStack_.push(urlState_);
}

void MetalinkParserStateMachine::setMetalinkStateV4()
{
  stateStack_.push(metalinkStateV4_);
}

void MetalinkParserStateMachine::setFileStateV4()
{
  stateStack_.push(fileStateV4_);
}

void MetalinkParserStateMachine::setSizeStateV4()
{
  stateStack_.push(sizeStateV4_);
}

void MetalinkParserStateMachine::setVersionStateV4()
{
  stateStack_.push(versionStateV4_);
}

void MetalinkParserStateMachine::setLanguageStateV4()
{
  stateStack_.push(languageStateV4_);
}

void MetalinkParserStateMachine::setOSStateV4()
{
  stateStack_.push(osStateV4_);
}

void MetalinkParserStateMachine::setHashStateV4()
{
  stateStack_.push(hashStateV4_);
}

void MetalinkParserStateMachine::setPiecesStateV4()
{
  stateStack_.push(piecesStateV4_);
}

void MetalinkParserStateMachine::setPieceHashStateV4()
{
  stateStack_.push(pieceHashStateV4_);
}

void MetalinkParserStateMachine::setSignatureStateV4()
{
  stateStack_.push(signatureStateV4_);
}

void MetalinkParserStateMachine::setURLStateV4()
{
  stateStack_.push(urlStateV4_);
}

void MetalinkParserStateMachine::setMetaurlStateV4()
{
  stateStack_.push(metaurlStateV4_);
}

void MetalinkParserStateMachine::setSkipTagState()
{
  stateStack_.push(skipTagState_);
}

bool MetalinkParserStateMachine::finished() const
{
  return stateStack_.top() == initialState_;
}

void MetalinkParserStateMachine::newEntryTransaction()
{
  ctrl_->newEntryTransaction();
}

void MetalinkParserStateMachine::setFileNameOfEntry(const std::string& filename)
{
  ctrl_->setFileNameOfEntry(filename);
}

void MetalinkParserStateMachine::setFileLengthOfEntry(uint64_t length)
{
  ctrl_->setFileLengthOfEntry(length);
}

void MetalinkParserStateMachine::setVersionOfEntry(const std::string& version)
{
  ctrl_->setVersionOfEntry(version);
}

void MetalinkParserStateMachine::setLanguageOfEntry(const std::string& language)
{
  ctrl_->setLanguageOfEntry(language);
}

void MetalinkParserStateMachine::setOSOfEntry(const std::string& os)
{
  ctrl_->setOSOfEntry(os);
}

void MetalinkParserStateMachine::setMaxConnectionsOfEntry(int maxConnections)
{
  ctrl_->setMaxConnectionsOfEntry(maxConnections);
}

void MetalinkParserStateMachine::commitEntryTransaction()
{
  ctrl_->commitEntryTransaction();
}

void MetalinkParserStateMachine::cancelEntryTransaction()
{
  ctrl_->cancelEntryTransaction();
}

void MetalinkParserStateMachine::newResourceTransaction()
{
  ctrl_->newResourceTransaction();
}

void MetalinkParserStateMachine::setURLOfResource(const std::string& url)
{
  ctrl_->setURLOfResource(url);
}

void MetalinkParserStateMachine::setTypeOfResource(const std::string& type)
{
  ctrl_->setTypeOfResource(type);
}

void MetalinkParserStateMachine::setLocationOfResource
(const std::string& location)
{
  ctrl_->setLocationOfResource(location);
}

void MetalinkParserStateMachine::setPriorityOfResource(int priority)
{
  ctrl_->setPriorityOfResource(priority);
}

void MetalinkParserStateMachine::setMaxConnectionsOfResource(int maxConnections)
{
  ctrl_->setMaxConnectionsOfResource(maxConnections);
}

void MetalinkParserStateMachine::commitResourceTransaction()
{
  ctrl_->commitResourceTransaction();
}

void MetalinkParserStateMachine::cancelResourceTransaction()
{
  ctrl_->cancelResourceTransaction();
}

void MetalinkParserStateMachine::newChecksumTransaction()
{
  ctrl_->newChecksumTransaction();
}

void MetalinkParserStateMachine::setTypeOfChecksum(const std::string& type)
{
  ctrl_->setTypeOfChecksum(type);
}

void MetalinkParserStateMachine::setHashOfChecksum(const std::string& md)
{
  ctrl_->setHashOfChecksum(md);
}

void MetalinkParserStateMachine::commitChecksumTransaction()
{
  ctrl_->commitChecksumTransaction();
}

void MetalinkParserStateMachine::cancelChecksumTransaction()
{
  ctrl_->cancelChecksumTransaction();
}

void MetalinkParserStateMachine::newChunkChecksumTransactionV4()
{
  ctrl_->newChunkChecksumTransactionV4();
}

void MetalinkParserStateMachine::setLengthOfChunkChecksumV4(size_t length)
{
  ctrl_->setLengthOfChunkChecksumV4(length);
}

void MetalinkParserStateMachine::setTypeOfChunkChecksumV4
(const std::string& type)
{
  ctrl_->setTypeOfChunkChecksumV4(type);
}

void MetalinkParserStateMachine::addHashOfChunkChecksumV4(const std::string& md)
{
  ctrl_->addHashOfChunkChecksumV4(md);
}

void MetalinkParserStateMachine::commitChunkChecksumTransactionV4()
{
  ctrl_->commitChunkChecksumTransactionV4();
}

void MetalinkParserStateMachine::cancelChunkChecksumTransactionV4()
{
  ctrl_->cancelChunkChecksumTransactionV4();
}

void MetalinkParserStateMachine::newChunkChecksumTransaction()
{
  ctrl_->newChunkChecksumTransaction();
}

void MetalinkParserStateMachine::setLengthOfChunkChecksum(size_t length)
{
  ctrl_->setLengthOfChunkChecksum(length);
}

void MetalinkParserStateMachine::setTypeOfChunkChecksum(const std::string& type)
{
  ctrl_->setTypeOfChunkChecksum(type);
}

void MetalinkParserStateMachine::createNewHashOfChunkChecksum(size_t order)
{
  ctrl_->createNewHashOfChunkChecksum(order);
}

void MetalinkParserStateMachine::setMessageDigestOfChunkChecksum
(const std::string& md)
{
  ctrl_->setMessageDigestOfChunkChecksum(md);
}

void MetalinkParserStateMachine::addHashOfChunkChecksum()
{
  ctrl_->addHashOfChunkChecksum();
}

void MetalinkParserStateMachine::commitChunkChecksumTransaction()
{
  ctrl_->commitChunkChecksumTransaction();
}

void MetalinkParserStateMachine::cancelChunkChecksumTransaction()
{
  ctrl_->cancelChunkChecksumTransaction();
}

void MetalinkParserStateMachine::newSignatureTransaction()
{
  ctrl_->newSignatureTransaction();
}

void MetalinkParserStateMachine::setTypeOfSignature(const std::string& type)
{
  ctrl_->setTypeOfSignature(type);
}

void MetalinkParserStateMachine::setFileOfSignature(const std::string& file)
{
  ctrl_->setFileOfSignature(file);
}

void MetalinkParserStateMachine::setBodyOfSignature(const std::string& body)
{
  ctrl_->setBodyOfSignature(body);
}

void MetalinkParserStateMachine::commitSignatureTransaction()
{
  ctrl_->commitSignatureTransaction();
}

void MetalinkParserStateMachine::cancelSignatureTransaction()
{
  ctrl_->cancelSignatureTransaction();
}

void MetalinkParserStateMachine::newMetaurlTransaction()
{
  ctrl_->newMetaurlTransaction();
}

void MetalinkParserStateMachine::setURLOfMetaurl(const std::string& url)
{
  ctrl_->setURLOfMetaurl(url);
}

void MetalinkParserStateMachine::setMediatypeOfMetaurl
(const std::string& mediatype)
{
  ctrl_->setMediatypeOfMetaurl(mediatype);
}

void MetalinkParserStateMachine::setPriorityOfMetaurl(int priority)
{
  ctrl_->setPriorityOfMetaurl(priority);
}

void MetalinkParserStateMachine::setNameOfMetaurl(const std::string& name)
{
  ctrl_->setNameOfMetaurl(name);
}

void MetalinkParserStateMachine::commitMetaurlTransaction()
{
  ctrl_->commitMetaurlTransaction();
}

void MetalinkParserStateMachine::cancelMetaurlTransaction()
{
  ctrl_->cancelMetaurlTransaction();
}

void MetalinkParserStateMachine::beginElement
(const std::string& localname,
 const std::string& prefix,
 const std::string& nsUri,
 const std::vector<XmlAttr>& attrs)
{
  stateStack_.top()->beginElement(this, localname, prefix, nsUri, attrs);
}
  
void MetalinkParserStateMachine::endElement
(const std::string& localname,
 const std::string& prefix,
 const std::string& nsUri,
 const std::string& characters)
{
  stateStack_.top()->endElement(this, localname, prefix, nsUri, characters);
  stateStack_.pop();
}

bool MetalinkParserStateMachine::needsCharactersBuffering() const
{
  return stateStack_.top()->needsCharactersBuffering();
}

void MetalinkParserStateMachine::logError(const std::string& log)
{
  if(errors_.size() < 10) {
    errors_.push_back(log);
  }
}

std::string MetalinkParserStateMachine::getErrorString() const
{
  std::stringstream error;
  error << "Specification violation: ";
  std::copy(errors_.begin(), errors_.end(),
            std::ostream_iterator<std::string>(error, ", "));
  return error.str();
}


} // namespace aria2