C++ Serializable类代码示例

void
Sector::write(lisp::Writer& writer)
{
  writer.write_string("name", name);
  writer.write_float("gravity", gravity);
  writer.write_string("music", music);

  // write spawnpoints
  for(SpawnPoints::iterator i = spawnpoints.begin(); i != spawnpoints.end();
      ++i) {
    SpawnPoint* spawn = *i;
    writer.start_list("spawn-points");
    writer.write_string("name", spawn->name);
    writer.write_float("x", spawn->pos.x);
    writer.write_float("y", spawn->pos.y);
    writer.end_list("spawn-points");
  }

  // write objects
  for(GameObjects::iterator i = gameobjects.begin();
      i != gameobjects.end(); ++i) {
    Serializable* serializable = dynamic_cast<Serializable*> (*i);
    if(serializable)
      serializable->write(writer);
  }
}

void
ESEnumerableModifyWnd::SetEnumerableObject(EnumerableObject<Serializable>* pEnumerable){
	ASSERT(pEnumerable);
	if( !pEnumerable ) return;

	ESChildControlList* pList = (ESChildControlList*)GetChildControl(1000);
	if( pList ){
		Serializable* pObject = pEnumerable->CreateSerializableObject();
		ASSERT(pObject);
		VariableInfo* pInfo = pObject->GetThisInfo();

		MercuryGUI*	pGUI		= MercuryGUI::GetInstance();
		_Size		szText(0, 0);
		_string		sTitle;

		int nLoop = 1;
		while( pInfo[nLoop].m_sAttributeName.length() > 0 ){
			if( !pInfo[nLoop].m_bComplexType ){
				sTitle = pInfo[nLoop].m_sDbFieldName;
				pGUI->header.m_fontItemText.GetTextSize(&sTitle, szText);
				if( szText.cx <= 0 )
					szText.cx = 80;
				pList->AddColumn(pInfo[nLoop].m_sDbFieldName, pInfo[nLoop].m_sAttributeName, HAlignment::HAlignement_Left, szText.cx + 5, szText.cx + 5);
				szText.cx = 0;
				}
			nLoop ++;
			}

		VirtualRowSet* pRowSet	= Serializable::SerializableObjectToVRowSet(pEnumerable);
		m_pListRowSet			= pRowSet;
		m_pEnumerable			= pEnumerable;
		pList->SetRowSet(pRowSet, true, true);
		delete pObject;
		}
	}

void test()
{
	Deserializer::d()["TestSerializable"] = TestSerializable::returnNew;

	TestSerializable testSerializable("important stuff");

	ptree serial = testSerializable.serialize();

	stringstream ss;
	write_xml(ss, serial);
	cout << "TestSerializable.serialize() to string:" << endl << ss.str() << endl;

	Serializable * deserializedUncast = newDeserialize(serial);
	//Serializable * deserializedUncast = Deserializer::d()["TestSerializable"]();

	ptree serial2 = deserializedUncast->serialize();

	stringstream ss2;
	write_xml(ss2, serial2);
	cout << "deserializedUncast->serialize() *post-returned* to string:" << endl << ss2.str() << endl;

	TestSerializable * deserialized = dynamic_cast<TestSerializable *>(deserializedUncast);
	
	cout << "deserialized->data: " << deserialized->data << endl;
}

Serializable * newDeserialize(ptree serial)
{
#if VERBOSE
	cout << "registered types:" << endl;
	for(map<string, Serializable * (*)()>::iterator iterator = Deserializer::d().begin(); iterator != Deserializer::d().end(); iterator++) {
		cout << iterator->first << endl;
	}
#endif

	string type = serial.get<std::string>("type");

	map<string, Serializable * (*)()>::iterator it = Deserializer::d().find(type);

	if(it != Deserializer::d().end())
	{
		Serializable * toReturn = Deserializer::d()[type]();
		toReturn->deserialize(serial);
		
	#if VERBOSE
		stringstream ss2;
		write_xml(ss2, toReturn->serialize());
		cout << "newDeserialize()->serialize() *pre-returned* to string:" << endl << ss2.str() << endl;
	#endif

		return toReturn;
	}
	else
	{
		cout<<"ERROR! No compatible deserialization function for " << type; //In case someone forgets to add a deserializer
		throw 319;
	}
}

void Pololu::Usc::Usb::SetSpeed::read(std::istream& stream) {
  Serializable<unsigned char> servo;
  Serializable<unsigned short> value;

  setServo(servo.read(stream));
  setValue(value.read(stream));
}

  RobotConfiguration* readLog(std::vector<BaseSensorData*>& sensorDatas, Deserializer& des){
    
    RobotConfiguration* conf = 0;
    Serializable *o;
    int numObjects=0;
    while( (! conf && (o=des.readObject())) ){
      cerr << o->className() << endl;
      numObjects++;
      if (! conf) {
	conf = dynamic_cast<RobotConfiguration*>(o);
	if (conf) {
	  cerr << "got config" << endl;
	  if (! conf->isReady()){
	    cerr << "conf failure" << endl;
	    return 0;
	  }
	}
	continue;
      }
    }

    if (!conf) {
      cerr << "unable to read robot configuration, aborting" << endl;
      return 0;
    }

    while( (o=des.readObject()) ){
      BaseSensorData* sensorData=dynamic_cast<BaseSensorData*>(o);
      if(sensorData)
	sensorDatas.push_back(sensorData);
    }
    return conf;
  }

	Serializable *Serializable::DeserializeNew (shared_ptr <Stream> stream)
	{
		string name = Serializable::DeserializeHeader (stream);
		Serializable *serializable = SerializerFactory::GetNewSerializable (name);
		serializable->Deserialize (stream);

		return serializable;
	}

bool OutXmlSerializer::save(Stream& stream)
{
	XmlDocument doc;

	XmlDeclaration* decl = zenic_new XmlDeclaration;
	decl->setValue("xml");
	decl->setAttribute("version","1.0");
	decl->setAttribute("encoding","ISO-8859-1");
	doc.addChild(decl);

	XmlComment* comment = new XmlComment;
	comment->setValue(" Cell XML Object Graph ");
	doc.addChild(comment);

	// add initial objects

	for (uint i = 0, n = count(); i < n; ++i)
	{
		Serializable* initial = (*this)[i];
		uint j,m;
		for (j = 0, m = m_objects.count(); j < m; ++j)
		{
			if (m_objects[j] == initial)
				break;
		}

		if (j == m_objects.count())
			m_objects.pushBack(initial);
	}

	// build xml tree

	XmlElement* root = new XmlElement;
	root->setValue("zenic");

	for (uint i = 0; i < m_objects.count(); ++i)
	{
		Serializable* object = m_objects[i];
		ZENIC_ASSERT(object);

		m_current = 0;
		m_currentIndex = i;
		object->serialize(*this);

		ZENIC_ASSERT(m_current);
		root->addChild(m_current);
	}

	doc.addChild(root);

	// write tree to stream
	if (!doc.save(stream))
		return false;

	return true;
}

void Database::Statement::write(const Serializable &s)
{
	if(mOutputLevel == 0 || s.isInlineSerializable()) s.serialize(*this);
	else {
		String tmp;
		JsonSerializer serializer(&tmp);
		s.serialize(serializer);
		write(tmp);
	}
}

bool JsonSerializer::input(Serializable &s)
{
	if(s.isInlineSerializable() && !s.isNativeSerializable())
	{
		String str;
		if(!input(str)) return false;
		s.fromString(str);
		return true;
	}
	else return s.deserialize(*this);
}

void 
SerializedInstanceTest::testSerialized(){
  toTest->addSerializable( getTestSerializable() );

  Serializable *returned = toTest->getSerializable();

  CPPUNIT_ASSERT( returned != 0 );
  CPPUNIT_ASSERT( returned->getDataType() == getTestSerializable()->getDataType() );

  delete returned;
}

void BlinkM::ScriptLine::read(std::istream& stream) {
  Serializable<unsigned char> durationTicks;
  Serializable<std::string> typeName;

  this->durationTicks = durationTicks.read(stream);
  typeName.read(stream);

  request = Singleton<Protocol>::getInstance().createRequest(
    typeName.read(stream));
  request->read(stream);
}

bool RangeProfilePlotManager::deserialize(SessionItemDeserializer& deserializer)
{
   XmlReader reader(NULL, false);
   DOMElement* pRootElement = deserializer.deserialize(reader, "RangeProfilePlotManager");
   if (pRootElement)
   {
      std::string viewId = A(pRootElement->getAttribute(X("viewId")));
      mpView = dynamic_cast<PlotView*>(Service<SessionManager>()->getSessionItem(viewId));

      mpPlot = Service<DesktopServices>()->createPlotWidget(getName(), CARTESIAN_PLOT);
      VERIFY(mpPlot);
      Serializable* pPlotSer = dynamic_cast<Serializable*>(mpPlot); // The imp side is serializable
      VERIFY(pPlotSer);
      if (!pPlotSer->fromXml(findChildNode(pRootElement, "plot"), reader.VERSION))
      {
         return false;
      }

      mpView = mpPlot->getPlot();
      VERIFY(mpView);
      Serializable* pPlotViewSer = dynamic_cast<Serializable*>(mpView); // The imp side is serializable
      VERIFY(pPlotViewSer);
      if (!pPlotViewSer->fromXml(findChildNode(pRootElement, "plotView"), reader.VERSION))
      {
         return false;
      }

      std::list<PlotObject*> objects;
      mpView->getObjects(POINT_SET, objects);
      FOR_EACH_DOMNODE(pRootElement, pChild)
      {
         if (XMLString::equals(pChild->getNodeName(), X("signature")))
         {
            DOMElement* pChldElmnt = static_cast<DOMElement*>(pChild);
            std::string sigId = A(pChldElmnt->getAttribute(X("sigId")));
            std::string pointSetName = A(pChldElmnt->getAttribute(X("pointSetName")));
            Signature* pSignature = static_cast<Signature*>(Service<SessionManager>()->getSessionItem(sigId));
            if (pSignature == NULL)
            {
               return false;
            }
            mSigPointSets[pSignature] = pointSetName;
            pSignature->attach(SIGNAL_NAME(Subject, Deleted), Slot(this, &RangeProfilePlotManager::signatureDeleted));
            pSignature->getDataDescriptor()->attach(SIGNAL_NAME(DataDescriptor, Renamed),
               Slot(this, &RangeProfilePlotManager::signatureRenamed));
         }
      }
      deserializer.nextBlock();
      return DockWindowShell::deserialize(deserializer);
   }
   return false;
}

            boost::shared_ptr<Serializable <PDXRecord> > PDXFileReader<FileEnumeratorType>::read() {
                using namespace std;
                using namespace boost;

                Serializable <PDXRecord>* newRecord;

                // open the next file to read.
                if (!curFile.is_open()) {
                    if (this->fIt == this->fEnum.end()) {
                        // Don't bother, no more files.
                        return shared_ptr<Serializable <PDXRecord> >();
                    }

                    const char* filename = (this->fIt)->file_string().c_str();
                    curFile.open(filename, ios::in | ios::binary);

                    if (curFile.fail()) {
                        this->_error = true;
                        this->_errorMsg = string(" Failed to open file ") + filename;

                        return shared_ptr<Serializable <PDXRecord> >();
                    }

                    arl_file_hdr_t header;

                    curFile.read((char*) (&header), sizeof (arl_file_hdr_t));

                    header.base_date = ntohl(header.base_date);

                    this->base_time.set(header.base_date, 0);
                    this->fIt++;
                }

                //do the reading.
                newRecord = new PDXRecord(&(this->base_time));

                char record[sizeof (pidx_data_t)];
                string dataStr;

                curFile.read(record, sizeof (record));

                if (curFile.eof()) {
                    curFile.close();

                    return this->read();
                } else {
                    newRecord->unserialize(dataStr.insert(0, record, sizeof (record)));
                }

                return shared_ptr<Serializable <PDXRecord> >(newRecord);
            }

//
// read_network_attributes
//
void ClientSidePrediction::read_network_attributes(Serializable& object, Deserializer& source)
{
    const auto attributes = object.GetNetworkAttributes();
    if (!attributes)
        return;

    unsigned numAttributes = attributes->Size();

    for (unsigned i = 0; i < numAttributes && !source.IsEof(); ++i)
    {
        const auto& attr = attributes->At(i);
        object.OnSetAttribute(attr, source.ReadVariant(attr.type_));
    }
}