Examples with EntitySeed uk.gov.gchq.gaffer.operation.data.EntitySeed used on opensource projects

Example 46 with EntitySeed

use of uk.gov.gchq.gaffer.operation.data.EntitySeed in project gaffer-doc by gchq.

the class Subgraphs method run.

@Override
public Iterable<? extends Element> run() throws OperationException, IOException {
    // / [graph] create a graph using our schema and store properties
    // ---------------------------------------------------------
    final Graph graph = new Graph.Builder().config(getDefaultGraphConfig()).addSchemas(StreamUtil.openStreams(getClass(), schemaPath)).storeProperties(getDefaultStoreProperties()).build();
    // ---------------------------------------------------------
    // [user] Create a user
    // ---------------------------------------------------------
    final User user = new User("user01");
    // ---------------------------------------------------------
    // [add] Create a data generator and add the edges to the graph using an operation chain consisting of:
    // generateElements - generating edges from the data (note these are directed edges)
    // addElements - add the edges to the graph
    // ---------------------------------------------------------
    final OperationChain<Void> addOpChain = new OperationChain.Builder().first(new GenerateElements.Builder<String>().generator(new RoadAndRoadUseWithTimesAndCardinalitiesElementGenerator()).input(IOUtils.readLines(StreamUtil.openStream(getClass(), "RoadAndRoadUseWithTimesAndCardinalities/data.txt"))).build()).then(new AddElements()).build();
    graph.execute(addOpChain, user);
    // ---------------------------------------------------------
    print("The elements have been added.");
    // [get] Create a sub graph
    // Start getting related edges with the given seeds.
    // Then update the export with the results
    // Between each hop we need to extract the destination vertices of the
    // previous edges and convert them to EntitySeeds.
    // Finally finish off by returning all the edges in the export.
    // ---------------------------------------------------------
    final OperationChain<Iterable<?>> opChain = new OperationChain.Builder().first(new GetElements.Builder().input(new EntitySeed("M5")).inOutType(IncludeIncomingOutgoingType.OUTGOING).view(new View.Builder().edge("RoadHasJunction").build()).build()).then(new ExportToSet<>()).then(new ToVertices.Builder().edgeVertices(ToVertices.EdgeVertices.DESTINATION).build()).then(new ToEntitySeeds()).then(new GetElements.Builder().inOutType(IncludeIncomingOutgoingType.OUTGOING).view(new View.Builder().edge("RoadUse", new ViewElementDefinition.Builder().preAggregationFilter(new ElementFilter.Builder().select("count").execute(new IsMoreThan(1L)).build()).build()).build()).build()).then(new ExportToSet<>()).then(new DiscardOutput()).then(new GetSetExport()).build();
    // ---------------------------------------------------------
    final Iterable<? extends Element> subGraph = (Iterable<? extends Element>) graph.execute(opChain, user);
    print("\nSub graph:");
    for (final Element edge : subGraph) {
        print("SUB_GRAPH", edge.toString());
    }
    return subGraph;
}

Example 47 with EntitySeed

use of uk.gov.gchq.gaffer.operation.data.EntitySeed in project gaffer-doc by gchq.

the class Transforms method run.

@Override
public CloseableIterable<? extends Element> run() throws OperationException, IOException {
    // [generate] Create some edges from the simple data file using our Road Use generator class
    // ---------------------------------------------------------
    final List<Element> elements = new ArrayList<>();
    final RoadAndRoadUseElementGenerator dataGenerator = new RoadAndRoadUseElementGenerator();
    for (final String line : IOUtils.readLines(StreamUtil.openStream(getClass(), dataPath))) {
        Iterables.addAll(elements, dataGenerator._apply(line));
    }
    // ---------------------------------------------------------
    print("Elements generated from the data file.");
    for (final Element element : elements) {
        print("GENERATED_EDGES", element.toString());
    }
    print("");
    // [graph] Create a graph using our schema and store properties
    // ---------------------------------------------------------
    final Graph graph = new Graph.Builder().config(getDefaultGraphConfig()).addSchemas(StreamUtil.openStreams(getClass(), schemaPath)).storeProperties(getDefaultStoreProperties()).build();
    // ---------------------------------------------------------
    // [user] Create a user
    // ---------------------------------------------------------
    final User user = new User("user01");
    // ---------------------------------------------------------
    // [add] Add the edges to the graph
    // ---------------------------------------------------------
    final AddElements addElements = new AddElements.Builder().input(elements).build();
    graph.execute(addElements, user);
    // ---------------------------------------------------------
    print("The elements have been added.");
    // [get simple] get all the edges that contain the vertex "1"
    // ---------------------------------------------------------
    final GetElements getEdges = new GetElements.Builder().input(new EntitySeed("10")).build();
    final CloseableIterable<? extends Element> results = graph.execute(getEdges, user);
    // ---------------------------------------------------------
    print("\nAll edges containing the vertex 10. The counts and 'things' have been aggregated\n");
    for (final Element e : results) {
        print("GET_ELEMENTS_RESULT", e.toString());
    }
    // [transform] Create a description transient property using an element transformer
    // ---------------------------------------------------------
    final ElementTransformer descriptionTransformer = new ElementTransformer.Builder().select("SOURCE", "DESTINATION", "count").execute(new DescriptionTransform()).project("description").build();
    // ---------------------------------------------------------
    printJson("TRANSFORM", descriptionTransformer);
    // [get] Add the element transformer to the view and run the query
    // ---------------------------------------------------------
    final GetElements getEdgesWithDescription = new GetElements.Builder().input(new EntitySeed("10")).view(new View.Builder().edge("RoadUse", new ViewElementDefinition.Builder().transientProperty("description", String.class).transformer(descriptionTransformer).build()).build()).build();
    final CloseableIterable<? extends Element> resultsWithDescription = graph.execute(getEdgesWithDescription, user);
    // ---------------------------------------------------------
    printJsonAndPython("GET", getEdgesWithDescription);
    print("\nWe can add a new property to the edges that is calculated from the aggregated values of other properties\n");
    for (final Element e : resultsWithDescription) {
        print("GET_ELEMENTS_WITH_DESCRIPTION_RESULT", e.toString());
    }
    // [get with no count]
    // ---------------------------------------------------------
    final GetElements getEdgesWithDescriptionAndNoCount = new GetElements.Builder().input(new EntitySeed("10")).view(new View.Builder().edge("RoadUse", new ViewElementDefinition.Builder().transientProperty("description", String.class).transformer(descriptionTransformer).excludeProperties("count").build()).build()).build();
    final CloseableIterable<? extends Element> resultsWithDescriptionAndNoCount = graph.execute(getEdgesWithDescriptionAndNoCount, user);
    // ---------------------------------------------------------
    printJsonAndPython("GET_WITH_NO_COUNT", getEdgesWithDescriptionAndNoCount);
    print("\nAnd the result without the count property:\n");
    for (final Element e : resultsWithDescriptionAndNoCount) {
        print("GET_ELEMENTS_WITH_DESCRIPTION_AND_NO_COUNT_RESULT", e.toString());
    }
    return resultsWithDescriptionAndNoCount;
}

Example 48 with EntitySeed

use of uk.gov.gchq.gaffer.operation.data.EntitySeed in project Gaffer by gchq.

the class WhileScoreResolverTest method shouldGetScoreWithFullyPopulatedOperation.

@Test
public void shouldGetScoreWithFullyPopulatedOperation() {
    // Given
    final Object input = new EntitySeed(2);
    final Count count = mock(Count.class);
    final int repeats = 5;
    final GetElements getElements = mock(GetElements.class);
    final Conditional conditional = mock(Conditional.class);
    given(conditional.getTransform()).willReturn(count);
    final While operation = new While.Builder<>().input(input).conditional(conditional).maxRepeats(repeats).operation(getElements).build();
    final LinkedHashMap<Class<? extends Operation>, Integer> opScores = new LinkedHashMap<>();
    opScores.put(Count.class, 1);
    opScores.put(GetElements.class, 2);
    final DefaultScoreResolver defaultResolver = new DefaultScoreResolver(opScores);
    final WhileScoreResolver resolver = new WhileScoreResolver();
    // When
    final int score = resolver.getScore(operation, defaultResolver);
    // Then
    assertEquals(15, score);
}

Example 49 with EntitySeed

use of uk.gov.gchq.gaffer.operation.data.EntitySeed in project Gaffer by gchq.

the class EntityIdSerialiserTest method testCanSerialiseEntityId.

@Test
public void testCanSerialiseEntityId() throws SerialisationException {
    // Given
    final EntityId entityId = new EntitySeed("vertex");
    // When
    final byte[] serialisedEntityId = serialiser.serialise(entityId);
    final EntityId deserialisedEntityId = serialiser.deserialise(serialisedEntityId);
    // Then
    assertEquals(entityId, deserialisedEntityId);
}

Example 50 with EntitySeed

use of uk.gov.gchq.gaffer.operation.data.EntitySeed in project Gaffer by gchq.

the class ToVerticesHandlerTest method shouldBeAbleToIterableOverTheResultsMultipleTimes.

@Test
public void shouldBeAbleToIterableOverTheResultsMultipleTimes() throws OperationException {
    // Given
    final List elementIds = Arrays.asList(new EntitySeed(vertex1), new EntitySeed(vertex2));
    final ToVerticesHandler handler = new ToVerticesHandler();
    final ToVertices operation = mock(ToVertices.class);
    given(operation.getInput()).willReturn(elementIds);
    given(operation.getEdgeVertices()).willReturn(EdgeVertices.NONE);
    // When
    final Iterable<Object> results = handler.doOperation(operation, new Context(), null);
    // Then
    final Set<Object> set1 = Sets.newHashSet(results);
    final Set<Object> set2 = Sets.newHashSet(results);
    assertEquals(Sets.newHashSet(vertex1, vertex2), set1);
    assertEquals(set1, set2);
}