void JSONTest::testEmptyObjectElement()
{
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>();
Object::Ptr object = array->getObject(0);
assert(object->size() == 0);
}
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;
}
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;
}
void doSearch( Utility::MTInput & input,
Utility::MTOutput & mtOutput,
Utility::MTOutput & mtConsoleOutput,
size_t startLine ) const
{
Poco::Net::HTTPClientSession session( m_uri.getHost(), m_uri.getPort() );
{
Utility::MTOutput::unique_lock lock( mtConsoleOutput.acquire());
mtConsoleOutput.os() << "Thread " << pthread_self() << " starting ";
mtConsoleOutput.flush();
}
std::string line;
while( size_t lineNum = input.getline( line ))
{
if( lineNum < startLine )
continue;
std::string path;
bool success = false;
size_t maxTries = 4;
while( !success && maxTries )
{
try
{
Utility::StrTuple term = Utility::delimitedText( line, '\t' );
if( term.size() < 4 )
break;
std::string artist = term[2];
std::string title = Utility::trim(term[3]);
path = make_request( artist + ' ' + title );
Poco::Net::HTTPRequest request( Poco::Net::HTTPRequest::HTTP_GET, path, Poco::Net::HTTPMessage::HTTP_1_1 );
Poco::Net::HTTPResponse response;
session.sendRequest(request);
std::istream& rs = session.receiveResponse(response);
using Poco::Dynamic::Var;
using namespace Poco::JSON;
Parser parser;
Var result = parser.parse(rs);
Object::Ptr obj = result.extract<Object::Ptr>();
int nResults = obj->getValue<int>("resultCount");
{
Utility::MTOutput::unique_lock lock( mtConsoleOutput.acquire());
mtConsoleOutput.os() << lineNum << ": " << path << ' ' << nResults
<< " results " << std::endl;
}
if( nResults )
{
Array::Ptr arr;
arr = obj->getArray( "results" );
if( !arr )
{
std::cerr << "Could not get results " << std::endl;
continue;
}
std::string releaseDate;
std::string genre;
std::string artistName; // on iTunes
std::string trackName; // on iTunes
bool found = false;
// if there is more than one see if there is an exact match. Otherwise use the first result
for( size_t i = 0; !found && i < nResults ; ++i )
{
Object::Ptr result = arr->getObject(i);
if( !result )
{
std::cerr << " Could not get result " << i << std::endl;
continue;
}
// get ArtistName and Title and see if they match ours
Var item = result->get( "artistName" );
if( item.isString() )
artistName = item.convert< std::string >();
item = result->get( "trackName" );
if( item.isString() )
trackName = item.convert< std::string >();
if( (artistName == artist && trackName == title) ) // we have an exact match so continue
found = true;
// if no exact matches are found we use the first one.
// We could use a better way to match the search eg case insensitive, removing featured acts etc.
if( found || i == 0 )
{
item = result->get( "releaseDate");
if( item.isString() )
{
std::string releaseDateStr = item.convert< std::string >();
releaseDate = releaseDateStr.substr( 0, releaseDateStr.find('T') );
}
item = result->get( "primaryGenreName" );
if( item.isString() )
genre = item.convert< std::string >();
}
}
if( m_filteredGenres.count( genre ) == 0 )
{
Utility::MTOutput::unique_lock lock( mtOutput.acquire());
// output the result. Spotify link, artist(spotify), title(spotify)
// artist(iTunes), title(iTunes), releaseDate, genre, numTracks (term[4])
mtOutput.os() << lineNum << '\t' <<
term[0] << '\t' << term[1] << '\t' << artist << '\t' << title << '\t' <<
artistName << '\t' << trackName << '\t' << releaseDate << '\t' << genre << '\t' << term[4] << '\n';
mtOutput.flush();
}
}
success = true;
}
catch( std::exception const& err )
{
success = false;
if( --maxTries )
{
sleep(1);
}
else
{
Utility::MTOutput::unique_lock lock( mtConsoleOutput.acquire());
std::cerr << "ERROR: " << err.what() << lineNum << ": " << path << std::endl;
}
}
}
}
{
Utility::MTOutput::unique_lock lock( mtConsoleOutput.acquire());
mtConsoleOutput.os() << "Thread " << pthread_self() << " exiting\n";
mtConsoleOutput.flush();
}
}
