Examples with DataGenerator8 uk.gov.gchq.gaffer.example.gettingstarted.generator.DataGenerator8 used on opensource projects

Example 1 with DataGenerator8

use of uk.gov.gchq.gaffer.example.gettingstarted.generator.DataGenerator8 in project Gaffer by gchq.

the class LoadAndQuery8 method run.

public Iterable<Edge> run() throws OperationException {
    // [user] Create a user who can see public and private data
    // ---------------------------------------------------------
    final User user = new User.Builder().userId("user").dataAuths("public", "private").build();
    // ---------------------------------------------------------
    // [graph] create a graph using our schema and store properties
    // ---------------------------------------------------------
    final Graph graph = new Graph.Builder().addSchemas(getSchemas()).storeProperties(getStoreProperties()).build();
    // ---------------------------------------------------------
    // [add] add the edges to the graph
    // ---------------------------------------------------------
    final OperationChain addOpChain = new OperationChain.Builder().first(new GenerateElements.Builder<String>().generator(new DataGenerator8()).objects(DataUtils.loadData(getData())).build()).then(new AddElements()).build();
    graph.execute(addOpChain, user);
    // ---------------------------------------------------------
    // [get] Get all edges
    // ---------------------------------------------------------
    final GetAllEdges allEdgesOperation = new GetAllEdges();
    final Iterable<Edge> edges = graph.execute(allEdgesOperation, user);
    // ---------------------------------------------------------
    log("\nAll edges in daily time buckets:");
    for (final Edge edge : edges) {
        log("GET_ALL_EDGES_RESULT", edge.toString());
    }
    // [get all edges summarised] Get all edges summarised (merge all time windows together)
    // This is achieved by overriding the 'groupBy' start and end time properties.
    // ---------------------------------------------------------
    final GetAllEdges edgesSummarisedOperation = new GetAllEdges.Builder().view(new View.Builder().edge("data", new ViewElementDefinition.Builder().groupBy().build()).build()).build();
    final Iterable<Edge> edgesSummarised = graph.execute(edgesSummarisedOperation, user);
    // ---------------------------------------------------------
    log("\nAll edges summarised:");
    for (final Edge edge : edgesSummarised) {
        log("GET_ALL_EDGES_SUMMARISED_RESULT", edge.toString());
    }
    // [get all edges summarised in time window] Get all edges summarised over a provided 2 day time period
    // This is achieved by overriding the 'groupBy' start and end time properties
    // and providing a filter.
    // ---------------------------------------------------------
    final GetAllEdges edgesSummarisedInTimeWindowOperation = new GetAllEdges.Builder().view(new View.Builder().edge("data", new ViewElementDefinition.Builder().preAggregationFilter(new ElementFilter.Builder().select("startDate").execute(new IsMoreThan(JAN_01_16, true)).select("endDate").execute(new IsLessThan(JAN_02_16, true)).build()).groupBy().build()).build()).build();
    final Iterable<Edge> edgesSummarisedInTimeWindow = graph.execute(edgesSummarisedInTimeWindowOperation, user);
    // ---------------------------------------------------------
    log("\nEdges in 2 day time window:");
    for (final Edge edge : edgesSummarisedInTimeWindow) {
        log("GET_ALL_EDGES_SUMMARISED_IN_TIME_WINDOW_RESULT", edge.toString());
    }
    // Repeat with a public user and you will see the private edges are not part of the summarised edges
    final User publicUser = new User.Builder().userId("public user").dataAuths("public").build();
    final Iterable<Edge> publicEdgesSummarisedInTimeWindow = graph.execute(edgesSummarisedInTimeWindowOperation, publicUser);
    log("\nPublic edges in 2 day time window:");
    for (final Edge edge : publicEdgesSummarisedInTimeWindow) {
        log("GET_PUBLIC_EDGES_SUMMARISED_IN_TIME_WINDOW_RESULT", edge.toString());
    }
    return publicEdgesSummarisedInTimeWindow;
}