Configuration conf = new Configuration();
        conf.setFloat(ConfigConstants.TASK_MANAGER_NETWORK_NUM_BUFFERS_KEY, 16000);
        final ExecutionEnvironment env = ExecutionEnvironment.createLocalEnvironment(conf);
        int maxIterations = 5;

        DataSet<Tuple4<String, String, Double, Double>> temporalsetdoubles = env.readCsvFile("./datasets/Testgraph2")
                .fieldDelimiter(",")  // node IDs are separated by spaces
                .ignoreComments("%")  // comments start with "%"
                .types(String.class, String.class, Double.class, Double.class); // read the node IDs as Longs
        Tgraph<String, NullValue, NullValue, Double> TemporalGraph = Tgraph.From4TupleNoEdgesNoVertexes(temporalsetdoubles,env);

        DataSet<String> setforlist = TemporalGraph.getVertices().map(new MapFunction<Vertex<String, NullValue>, String>() {

            @Override
            public String map(Vertex<String, NullValue> value) throws Exception {
                return value.getId();
            }
        });
        List<String> vertexcollection = setforlist.collect();
        DataSet<ArrayList<String>> collectionDataSet;
        collectionDataSet = TemporalGraph.run(new SingleSourceShortestTemporalPathSTTJustPaths<>(vertexcollection.get(0), maxIterations)).map(new vertextestmapperdataset());

        for (String vertexid : vertexcollection) {
            DataSet<ArrayList<String>> iteratorDataSet = TemporalGraph.run(new SingleSourceShortestTemporalPathSTTJustPaths<>(vertexid, maxIterations)).map(new vertextestmapperdataset());
            collectionDataSet = iteratorDataSet.union(collectionDataSet);
            iteratorDataSet.print();
        }
        collectionDataSet.print();