C++ TagMap类代码示例

std::vector<Stage *> PipelineReaderJSON::extractInputs(Json::Value& node,
    TagMap& tags)
{
    std::vector<Stage *> inputs;
    std::string filename;

    if (node.isMember("inputs"))
    {
        Json::Value& val = node["filename"];
        if (!val.isNull())
        {
            for (const Json::Value& input : node["inputs"])
            {
                if (input.isString())
                {
                    std::string tag = input.asString();
                    auto ii = tags.find(tag);
                    if (ii == tags.end())
                        throw pdal_error("JSON pipeline: Invalid pipeline: "
                            "undefined stage tag '" + tag + "'.");
                    else
                        inputs.push_back(ii->second);
                }
                else
                    throw pdal_error("JSON pipeline: 'inputs' tag must "
                        " be specified as a string.");
            }
        }
        node.removeMember("inputs");
        if (node.isMember("inputs"))
            throw pdal_error("JSON pipeline: found duplicate 'inputs' "
               "entry in stage definition.");
    }
    return inputs;
}

std::string PipelineReaderJSON::extractTag(Json::Value& node, TagMap& tags)
{
    std::string tag;

    if (node.isMember("tag"))
    {
        Json::Value& val = node["tag"];
        if (!val.isNull())
        {
            if (val.isString())
            {
                tag = val.asString();
                if (tags.find(tag) != tags.end())
                    throw pdal_error("JSON pipeline: duplicate tag '" +
                        tag + "'.");
            }
            else
                throw pdal_error("JSON pipeline: tag must be "
                    "specified as a string.");
        }
        node.removeMember("tag");
        if (node.isMember("tag"))
            throw pdal_error("JSON pipeline: found duplicate 'tag' "
               "entry in stage definition.");
        std::string::size_type pos = 0;
        if (!Stage::parseTagName(tag, pos) || pos != tag.size())
            throw pdal_error("JSON pipeline: Invalid tag name '" + tag + "'.  "
                "Must start with letter.  Remainder can be letters, "
                "digits or underscores.");
    }
    return tag;
}

void PrintTagMap(const TagMap &tagMap)
{
	for(TagMap::const_iterator it = tagMap.begin(); it != tagMap.end(); it++)
	{
		std::cout << it->first << "=" << it->second << std::endl;
	}
}

std::string PipelineReaderJSON::extractTag(Json::Value& node, TagMap& tags)
{
    std::string tag;

    if (node.isMember("tag"))
    {
        Json::Value& val = node["tag"];
        if (!val.isNull())
        {
            if (val.isString())
            {
                tag = val.asString();
                if (tags.find(tag) != tags.end())
                    throw pdal_error("JSON pipeline: duplicate tag '" +
                        tag + "'.");
            }
            else
                throw pdal_error("JSON pipeline: 'tag' must be "
                    "specified as a string.");
        }
        node.removeMember("tag");
        if (node.isMember("tag"))
            throw pdal_error("JSON pipeline: found duplicate 'tag' "
               "entry in stage definition.");
    }
    return tag;
}

void O5mEncodeBase::StoreNode(int64_t objId, const class MetaData &metaData, 
		const TagMap &tags, double latIn, double lonIn)
{
	this->write("\x10",1);

	//Object ID
	std::stringstream tmpStream;
	int64_t deltaId = objId - this->lastObjId;
	tmpStream << EncodeZigzag(deltaId);
	this->lastObjId = objId;

	this->EncodeMetaData(metaData, tmpStream);

	//Position
	int64_t lon = round(lonIn * 1e7);
	int64_t deltaLon = lon - this->lastLon;
	tmpStream << EncodeZigzag(deltaLon);
	this->lastLon = lon;
	int64_t lat = round(latIn * 1e7);
	int64_t deltaLat = lat - this->lastLat;
	tmpStream << EncodeZigzag(deltaLat);
	this->lastLat = lat;

	for (TagMap::const_iterator it=tags.begin(); it != tags.end(); it++)
		this->WriteStringPair(it->first, it->second, tmpStream);

	std::string binData = tmpStream.str();
	std::string len = EncodeVarint(binData.size());
	*this << len;
	*this << binData;
}

void OsmXmlEncodeBase::StoreRelation(int64_t objId, const class MetaData &metaData, const TagMap &tags, 
	const std::vector<std::string> &refTypeStrs, const std::vector<int64_t> &refIds,
	const std::vector<std::string> &refRoles)
{
	if(refTypeStrs.size() != refIds.size() || refTypeStrs.size() != refRoles.size())
		throw std::invalid_argument("Length of ref vectors must be equal");

	stringstream ss;
	ss << "  <relation id=\""<<objId<<"\"";
	this->EncodeMetaData(metaData, ss);
	if(tags.size() == 0 && refTypeStrs.size() == 0)
		ss <<" />" << endl;
	else
	{
		ss <<">" << endl;

		//Write node IDs
		for(size_t i=0; i<refTypeStrs.size(); i++)
			ss << "    <member type=\""<<escapexml(refTypeStrs[i])<<"\" ref=\""<<refIds[i]<<"\" role=\""<<escapexml(refRoles[i])<<"\" />" << endl;

		//Write tags
		for(TagMap::const_iterator it=tags.begin(); it!=tags.end(); it++)
			ss << "    <tag k=\""<<escapexml(it->first)<<"\" v=\""<<escapexml(it->second)<<"\" />" << endl;

		ss << "  </relation>" << endl;
	}
	*this << ss.str();
}

void PipelineReaderJSON::handleInputTag(const std::string& tag,
    const TagMap& tags, std::vector<Stage *>& inputs)
{
    auto ii = tags.find(tag);
    if (ii == tags.end())
        throw pdal_error("JSON pipeline: Invalid pipeline: "
            "undefined stage tag '" + tag + "'.");
    else
        inputs.push_back(ii->second);
}

  bool TagIsInCondition::Evaluate(const TagMap& tagMap) const
  {
    auto t=tagMap.find(tag);

    if (t==tagMap.end()) {
      return false;
    }

    return tagValues.find(t->second)!=tagValues.end();
  }

size_t
GenericHeader::read(IDataReader &reader)
{
    size_t bufLen = 1024 * 32;
    DataBuffer buf(bufLen, ALIGNMENT);
    size_t numBytesRead = reader.getData(buf.getFree(), bufLen);
    buf.moveFreeToData(numBytesRead);

    if (numBytesRead < 4 /* magic */ + 4 /* size */) {
        throw IllegalHeaderException("Failed to read header info.");
    }
    uint32_t magic = buf.readInt32();
    if (magic != MAGIC) {
        throw IllegalHeaderException("Failed to verify magic bits.");
    }
    uint32_t numBytesTotal = buf.readInt32();
    if (numBytesTotal == 0) {
        throw IllegalHeaderException("Failed to read header size.");
    }
    if (numBytesTotal < getMinSize()) {
        throw IllegalHeaderException("Failed to verify header size.");
    }
    if (numBytesRead < numBytesTotal) {
        LOG(debug, "Read %d of %d header bytes, performing backfill.",
            (uint32_t)numBytesRead, numBytesTotal);
        uint32_t numBytesRemain = numBytesTotal - numBytesRead;
        buf.ensureFree(numBytesRemain);
        LOG(debug, "Reading remaining %d bytes of header.", numBytesRemain);
        numBytesRead += reader.getData(buf.getFree(), numBytesRemain);
        if (numBytesRead != numBytesTotal) {
            throw IllegalHeaderException("Failed to read full header.");
        }
        buf.moveFreeToData(numBytesRemain);
    } else {
        buf.moveDataToFree(numBytesRead - numBytesTotal);
    }

    uint32_t version = buf.readInt32();
    if (version != VERSION) {
        throw IllegalHeaderException("Failed to verify header version.");
    }
    uint32_t numTags = buf.readInt32();
    TagMap tags;
    for (uint32_t i = 0; i < numTags; ++i) {
        Tag tag;
        tag.read(buf);
        tags.insert(TagMap::value_type(tag.getName(), tag));
    }
    _tags.swap(tags);
    return numBytesTotal;
}

  std::string ImportErrorReporter::GetName(const ObjectOSMRef& object,
                                           const TagMap& tags) const
  {
    std::stringstream buffer;

    buffer << object.GetName();

    if (nameTagId!=tagIgnore) {
      const auto entry=tags.find(nameTagId);

      if (entry!=tags.end()) {
        buffer << " \"" << entry->second << "\"";
      }
    }

    return buffer.str();
  }

  bool Preprocess::Callback::IsMultipolygon(const TagMap& tags,
                                            TypeInfoRef& type)
  {
    type=typeConfig->GetRelationType(tags);

    if (type!=typeConfig->typeInfoIgnore &&
        type->GetIgnore()) {
      return false;
    }

    bool isArea=type!=typeConfig->typeInfoIgnore &&
                type->GetMultipolygon();

    if (!isArea) {
      auto typeTag=tags.find(typeConfig->tagType);

      isArea=typeTag!=tags.end() && typeTag->second=="multipolygon";
    }

    return isArea;
  }

void QFieldDefinitionData::init(TagMap &tagMap, FieldMap &fieldMap, ActionMap &actionMap, QTranslatableSettings &config)
{
    QList<QFieldDefinition> fields;
    QMap<QString, QFieldAction> actions;

    fields = QFieldDefinitionData::readFields(config);
    actions = QFieldDefinitionData::readActions(config);

    foreach(QFieldDefinition def, fields) {
        if (!fieldMap.contains(def.id())) {
            fieldMap.insert(def.id(), def);
            QStringList tags = def.tags();
            foreach(QString tag, tags)
            {
                QSet<QString> taggedFields;
                if (tagMap.contains(tag))
                    taggedFields = tagMap.value(tag);
                taggedFields.insert(def.id());
                tagMap.insert(tag, taggedFields);
            }
        }

// ---------------------------------------------------------------------------
//	EnvelopeReader Find
// ---------------------------------------------------------------------------
//	May return NULL if no reader with the specified owner and index
//	is found.
//
const EnvelopeReader * 
EnvelopeReader::Find( INSDS * owner, int idx )
{
	TagMap & readers = Tags();
	TagMap::iterator it = readers.find( Tag( owner, idx ) );
	if ( it != readers.end() )
	{
#ifdef DEBUG_LORISGENS
		std::cerr << "** found EnvelopeReader with owner " << owner << " and index " << idx;
		std::cerr << " having " << it->second->size() << " envelopes." << std::endl; 
#endif
		return it->second;
	}
	else
	{
#ifdef DEBUG_LORISGENS
		std::cerr << "** could not find EnvelopeReader with owner " << owner << " and index " << idx << std::endl; 
#endif
		return NULL;
	}
}

  bool Preprocess::Callback::IsTurnRestriction(const TagMap& tags,
                                               TurnRestriction::Type& type) const
  {
    auto typeValue=tags.find(typeConfig->tagType);

    if (typeValue==tags.end()) {
      return false;
    }

    if (typeValue->second!="restriction") {
      return false;
    }

    auto restrictionValue=tags.find(typeConfig->tagRestriction);

    if (restrictionValue==tags.end()) {
      return false;
    }

    type=TurnRestriction::Allow;

    if (restrictionValue->second=="only_left_turn" ||
        restrictionValue->second=="only_right_turn" ||
        restrictionValue->second=="only_straight_on") {
      type=TurnRestriction::Allow;

      return true;
    }
    else if (restrictionValue->second=="no_left_turn" ||
             restrictionValue->second=="no_right_turn" ||
             restrictionValue->second=="no_straight_on" ||
             restrictionValue->second=="no_u_turn") {
      type=TurnRestriction::Forbit;

      return true;
    }

    return false;
  }

void OsmXmlEncodeBase::StoreNode(int64_t objId, const class MetaData &metaData, 
	const TagMap &tags, double lat, double lon)
{
	stringstream ss;
	ss.precision(9);
	ss << "  <node id=\""<<objId<<"\"";
	this->EncodeMetaData(metaData, ss);
	ss << fixed << " lat=\""<<lat<<"\" lon=\""<<lon<<"\"";
	if(tags.size() == 0)
		ss <<" />" << endl;
	else
	{
		ss <<">" << endl;

		//Write tags
		for(TagMap::const_iterator it=tags.begin(); it!=tags.end(); it++)
		{
			ss << "    <tag k=\""<<escapexml(it->first)<<"\" v=\""<<escapexml(it->second)<<"\" />" << endl;
		}
		ss << "  </node>" << endl;
	}
	*this << ss.str();
}