Examples with GetEdges uk.gov.gchq.gaffer.operation.impl.get.GetEdges used on opensource projects

Example 1 with GetEdges

use of uk.gov.gchq.gaffer.operation.impl.get.GetEdges in project Gaffer by gchq.

the class ExamplesService method getRelatedEdges.

@Override
public GetEdges getRelatedEdges() {
    final GetEdges op = new GetEdges();
    final List<ElementSeed> seeds = new ArrayList<>();
    if (hasEntities()) {
        seeds.add(getEntitySeed(1));
    } else if (hasEdges()) {
        seeds.add(new EntitySeed(getEdgeSeed(1, 2).getSource()));
    }
    if (hasEdges()) {
        seeds.add(getEdgeSeed(1, 2));
    }
    op.setSeeds(seeds);
    populateOperation(op);
    return op;
}

Example 2 with GetEdges

use of uk.gov.gchq.gaffer.operation.impl.get.GetEdges in project Gaffer by gchq.

the class ExamplesService method getEdgesBySeed.

@Override
public GetEdges getEdgesBySeed() {
    final GetEdges op = new GetEdges();
    if (hasEdges()) {
        op.setSeeds(Collections.singletonList(getEdgeSeed(1, 2)));
    }
    populateOperation(op);
    return op;
}

Example 3 with GetEdges

use of uk.gov.gchq.gaffer.operation.impl.get.GetEdges in project Gaffer by gchq.

the class LoadAndQuery2 method run.

public CloseableIterable<Edge> run() throws OperationException {
    // [user] Create a user
    // ---------------------------------------------------------
    final User user = new User("user01");
    // ---------------------------------------------------------
    // [generate] Create some edges from the data file using our data generator class
    // ---------------------------------------------------------
    final List<Element> elements = new ArrayList<>();
    final DataGenerator2 dataGenerator = new DataGenerator2();
    for (final String s : DataUtils.loadData(getData())) {
        elements.add(dataGenerator.getElement(s));
    }
    // ---------------------------------------------------------
    log("Elements generated from the data file.");
    for (final Element element : elements) {
        log("GENERATED_EDGES", element.toString());
    }
    log("");
    // [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 AddElements addElements = new AddElements.Builder().elements(elements).build();
    graph.execute(addElements, user);
    // ---------------------------------------------------------
    log("The elements have been added.\n");
    // [get simple] Get all the edges related to vertex 1
    // ---------------------------------------------------------
    final GetEdges<EntitySeed> getRelatedEdges = new GetEdges.Builder<EntitySeed>().addSeed(new EntitySeed("1")).build();
    final CloseableIterable<Edge> allColoursResults = graph.execute(getRelatedEdges, user);
    // ---------------------------------------------------------
    log("\nAll edges containing vertex 1");
    log("\nNotice that the edges are aggregated within their groups");
    for (final Element e : allColoursResults) {
        log("GET_RELATED_EDGES_RESULT", e.toString());
    }
    // [get] Rerun the previous query with a View to specify which subset of results we want
    // ---------------------------------------------------------
    final View view = new View.Builder().edge("red").build();
    final GetEdges<EntitySeed> getRelatedRedEdges = new GetEdges.Builder<EntitySeed>().addSeed(new EntitySeed("1")).view(view).build();
    final CloseableIterable<Edge> redResults = graph.execute(getRelatedRedEdges, user);
    // ---------------------------------------------------------
    log("\nAll red edges containing vertex 1\n");
    for (final Element e : redResults) {
        log("GET_RELATED_RED_EDGES_RESULT", e.toString());
    }
    return redResults;
}

Example 4 with GetEdges

use of uk.gov.gchq.gaffer.operation.impl.get.GetEdges in project Gaffer by gchq.

the class LoadAndQuery3 method run.

public CloseableIterable<Edge> run() throws OperationException {
    // [user] Create a user
    // ---------------------------------------------------------
    final User user = new User("user01");
    // ---------------------------------------------------------
    // [generate] create some edges from the data file using our data generator class
    // ---------------------------------------------------------
    final List<Element> elements = new ArrayList<>();
    final DataGenerator3 dataGenerator = new DataGenerator3();
    for (final String s : DataUtils.loadData(getData())) {
        elements.add(dataGenerator.getElement(s));
    }
    // ---------------------------------------------------------
    log("Elements generated from the data file.");
    for (final Element element : elements) {
        log("GENERATED_EDGES", element.toString());
    }
    log("");
    // [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 AddElements addElements = new AddElements.Builder().elements(elements).build();
    graph.execute(addElements, user);
    // ---------------------------------------------------------
    log("The elements have been added.\n");
    log("\nAll edges containing the vertex 1. The counts have been aggregated\n");
    // [get simple] get all the edges that contain the vertex "1"
    // ---------------------------------------------------------
    final GetEdges<EntitySeed> getRelatedEdges = new GetEdges.Builder<EntitySeed>().addSeed(new EntitySeed("1")).build();
    final CloseableIterable<Edge> results = graph.execute(getRelatedEdges, user);
    // ---------------------------------------------------------
    for (final Element e : results) {
        log("GET_RELATED_EDGES_RESULT", e.toString());
    }
    // [get] rerun previous query with a filter to return only edges with a count more than 3
    // ---------------------------------------------------------
    final View view = new View.Builder().edge("data", new ViewElementDefinition.Builder().preAggregationFilter(new ElementFilter.Builder().select("count").execute(new IsMoreThan(3)).build()).build()).build();
    final GetEdges<EntitySeed> getRelatedEdgesWithCountMoreThan3 = new GetEdges.Builder<EntitySeed>().addSeed(new EntitySeed("1")).view(view).build();
    final CloseableIterable<Edge> filteredResults = graph.execute(getRelatedEdgesWithCountMoreThan3, user);
    // ---------------------------------------------------------
    log("\nAll edges containing the vertex 1 with an aggregated count more than than 3\n");
    for (final Element e : filteredResults) {
        log("GET_RELATED_ELEMENTS_WITH_COUNT_MORE_THAN_3_RESULT", e.toString());
    }
    return filteredResults;
}

Example 5 with GetEdges

use of uk.gov.gchq.gaffer.operation.impl.get.GetEdges in project Gaffer by gchq.

the class LoadAndQuery4 method run.

public CloseableIterable<Edge> run() throws OperationException {
    // [user] Create a user
    // ---------------------------------------------------------
    final User user = new User("user01");
    // ---------------------------------------------------------
    // [generate] Create some edges from the data file using our data generator class
    // ---------------------------------------------------------
    final List<Element> elements = new ArrayList<>();
    final DataGenerator4 dataGenerator = new DataGenerator4();
    for (final String s : DataUtils.loadData(getData())) {
        elements.add(dataGenerator.getElement(s));
    }
    // ---------------------------------------------------------
    log("Elements generated from the data file.");
    for (final Element element : elements) {
        log("GENERATED_EDGES", element.toString());
    }
    log("");
    // [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 AddElements addElements = new AddElements.Builder().elements(elements).build();
    graph.execute(addElements, user);
    // ---------------------------------------------------------
    log("The elements have been added.\n");
    // [get simple] get all the edges that contain the vertex "1"
    // ---------------------------------------------------------
    final GetEdges<EntitySeed> getRelatedEdges = new GetEdges.Builder<EntitySeed>().addSeed(new EntitySeed("1")).build();
    final CloseableIterable<Edge> results = graph.execute(getRelatedEdges, user);
    // ---------------------------------------------------------
    log("\nAll edges containing the vertex 1. The counts and 'things' have been aggregated\n");
    for (final Element e : results) {
        log("GET_RELATED_EDGES_RESULT", e.toString());
    }
    // rerun previous query but calculate a mean
    // [transform] Create a mean transient property using an element transformer
    // ---------------------------------------------------------
    final ElementTransformer mean = new ElementTransformer.Builder().select("thing", "count").project("mean").execute(new MeanTransform()).build();
    // ---------------------------------------------------------
    // [get] Add the element transformer to the view and run the query
    // ---------------------------------------------------------
    final View view = new View.Builder().edge("data", new ViewElementDefinition.Builder().transientProperty("mean", Float.class).transformer(mean).build()).build();
    final GetEdges<EntitySeed> getRelatedEdgesWithMean = new GetEdges.Builder<EntitySeed>().addSeed(new EntitySeed("1")).view(view).build();
    final CloseableIterable<Edge> transientResults = graph.execute(getRelatedEdgesWithMean, user);
    // ---------------------------------------------------------
    log("\nWe can add a new property to the edges that is calculated from the aggregated values of other properties\n");
    for (final Element e : transientResults) {
        log("GET_RELATED_ELEMENTS_WITH_MEAN_RESULT", e.toString());
    }
    return transientResults;
}