vector<shared_ptr<FDSBucket> > GalaxyFDSClient::listBuckets() {
  string uri = formatUri(_pConfig->getBaseUri(), "", _emptySubResources);
  URI pocoUri(uri);

  shared_ptr<HTTPClientSession> pSession(_pSessionFacotry
      ->createClientSession(pocoUri));
  pSession->setHost(pocoUri.getHost());
  pSession->setPort(pocoUri.getPort());
  HTTPRequest request(HTTPRequest::HTTP_GET, uri, HTTPMessage::HTTP_1_1);
  prepareRequestHeaders(uri, HTTPRequest::HTTP_GET, "", _emptyStream,
      *_pEmptyMetadata, request);
  HTTPResponse response;

  ostream& os = pSession->sendRequest(request);
  istream& rs = pSession->receiveResponse(response);

  if (response.getStatus() != HTTPResponse::HTTP_OK) {
    stringstream msg;
    msg << "List buckets failed, status=" << response.getStatus() << ", reason=";
    StreamCopier::copyStream(rs, msg);
    throw GalaxyFDSClientException(response.getStatus(), msg.str());
  }

  vector<shared_ptr<FDSBucket> > res;
  Parser parser;
  parser.parse(rs);
  Var result = parser.result();
  Object::Ptr pObject = result.extract<Object::Ptr>();
  Object::Ptr pOwnerObject = pObject->getObject("owner");
  stringstream ss;
  pOwnerObject->stringify(ss);
  shared_ptr<Owner> pOwner = Owner::deserialize(ss);
  Array::Ptr pBucketsArray = pObject->getArray("buckets");
  for (size_t i = 0; i < pBucketsArray->size(); i++) {
    string bucketName = pBucketsArray->getObject(i)->getValue<string>("name");
    shared_ptr<FDSBucket> pBucket(new FDSBucket(bucketName));
    pBucket->setOwner(*pOwner);
    res.push_back(pBucket);
  }

  return res;
}
Пример #2
0
void RandomVar::ReadFromJSON(const char* fileName) {
    
    Parser loParser;
    std::ifstream t(fileName);
    std::stringstream buffer;
    buffer << t.rdbuf();
    string json = buffer.str();
    // Parse the JSON and get the Results
    Poco::Dynamic::Var loParsedJson = loParser.parse(json);
    Poco::Dynamic::Var loParsedJsonResult = loParser.result();

    // Random variable data are an array of objects
    //[
    // {"value": 1, "probability" : 0.2, "cumulative" : 0.2},
    // {"value": 2, "probability" : 0.2, "cumulative" : 0.4},
    // {"value": 3, "probability" : 0.2, "cumulative" : 0.6},
    // {"value": 4, "probability" : 0.2, "cumulative" : 0.8},
    // {"value": 5, "probability" : 0.2, "cumulative" : 1.0}
    //]    
    
    Array::Ptr arr = loParsedJsonResult.extract<Array::Ptr>();
    size_t size = arr->size();

    m_P.resize(size);
    m_C.resize(size);
    m_X.resize(size);
            
    // Individual data rows
    Object::Ptr object;
    for (size_t i = 0; i < size; i++) {
        object = arr->getObject(i);
        this->setX(i, object->getValue<double>("value"));
        this->setP(i, object->getValue<double>("probability"));
        this->setC(i, object->getValue<double>("cumulative"));        
    }

    return;
}
Пример #3
0
void JSONTest::testNestedArray()
{
	std::string json = "[[[[]]]]";
	Parser parser;
	Var result;

	try
	{
		DefaultHandler handler;
		parser.setHandler(&handler);
		parser.parse(json);
		result = handler.result();
	}
	catch(JSONException& jsone)
	{
		std::cout << jsone.message() << std::endl;
		assert(false);
	}

	assert(result.type() == typeid(Array::Ptr));

	Array::Ptr array = result.extract<Array::Ptr>();
	assert(array->size() == 1);
}