org.apache.tinkerpop.gremlin.structure.util.Attachable Java Examples
The following examples show how to use
org.apache.tinkerpop.gremlin.structure.util.Attachable.
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Example #1
| Source File: GraphSONReader.java From tinkerpop with Apache License 2.0 | 6 votes |
|
/**
* Read a {@link Vertex} from output generated by any of the {@link GraphSONWriter} {@code writeVertex} or
* {@code writeVertices} methods or by {@link GraphSONWriter#writeGraph(OutputStream, Graph)}.
*
* @param inputStream a stream containing at least one {@link Vertex} as defined by the accompanying
* {@link GraphWriter#writeVertices(OutputStream, Iterator, Direction)} method.
* @param vertexAttachMethod a function that creates re-attaches a {@link Vertex} to a {@link Host} object.
* @param edgeAttachMethod a function that creates re-attaches a {@link Edge} to a {@link Host} object.
* @param attachEdgesOfThisDirection only edges of this direction are passed to the {@code edgeMaker}.
*/
@Override
public Vertex readVertex(final InputStream inputStream,
final Function<Attachable<Vertex>, Vertex> vertexAttachMethod,
final Function<Attachable<Edge>, Edge> edgeAttachMethod,
final Direction attachEdgesOfThisDirection) throws IOException {
// graphson v3 has special handling for generic Map instances, by forcing to linkedhashmap (which is probably
// what it should have been anyway) stargraph format can remain unchanged across all versions
final Map<String, Object> vertexData = version == GraphSONVersion.V3_0 ?
mapper.readValue(inputStream, linkedHashMapTypeReference) : mapper.readValue(inputStream, mapTypeReference);
final StarGraph starGraph = StarGraphGraphSONDeserializer.readStarGraphVertex(vertexData);
if (vertexAttachMethod != null) vertexAttachMethod.apply(starGraph.getStarVertex());
if (vertexData.containsKey(GraphSONTokens.OUT_E) && (attachEdgesOfThisDirection == Direction.BOTH || attachEdgesOfThisDirection == Direction.OUT))
StarGraphGraphSONDeserializer.readStarGraphEdges(edgeAttachMethod, starGraph, vertexData, GraphSONTokens.OUT_E);
if (vertexData.containsKey(GraphSONTokens.IN_E) && (attachEdgesOfThisDirection == Direction.BOTH || attachEdgesOfThisDirection == Direction.IN))
StarGraphGraphSONDeserializer.readStarGraphEdges(edgeAttachMethod, starGraph, vertexData, GraphSONTokens.IN_E);
return starGraph.getStarVertex();
}
Example #2
| Source File: StarGraphGraphSONDeserializer.java From tinkerpop with Apache License 2.0 | 6 votes |
|
/**
* A helper function for reading vertex edges from a serialized {@link StarGraph} (i.e. a {@code Map}) generated by
* {@link StarGraphGraphSONSerializerV1d0}.
*/
public static void readStarGraphEdges(final Function<Attachable<Edge>, Edge> edgeMaker,
final StarGraph starGraph,
final Map<String, Object> vertexData,
final String direction) throws IOException {
final Map<String, List<Map<String,Object>>> edgeDatas = (Map<String, List<Map<String,Object>>>) vertexData.get(direction);
for (Map.Entry<String, List<Map<String,Object>>> edgeData : edgeDatas.entrySet()) {
for (Map<String,Object> inner : edgeData.getValue()) {
final StarGraph.StarEdge starEdge;
if (direction.equals(GraphSONTokens.OUT_E))
starEdge = (StarGraph.StarEdge) starGraph.getStarVertex().addOutEdge(edgeData.getKey(), starGraph.addVertex(T.id, inner.get(GraphSONTokens.IN)), T.id, inner.get(GraphSONTokens.ID));
else
starEdge = (StarGraph.StarEdge) starGraph.getStarVertex().addInEdge(edgeData.getKey(), starGraph.addVertex(T.id, inner.get(GraphSONTokens.OUT)), T.id, inner.get(GraphSONTokens.ID));
if (inner.containsKey(GraphSONTokens.PROPERTIES)) {
final Map<String, Object> edgePropertyData = (Map<String, Object>) inner.get(GraphSONTokens.PROPERTIES);
for (Map.Entry<String, Object> epd : edgePropertyData.entrySet()) {
starEdge.property(epd.getKey(), epd.getValue());
}
}
if (edgeMaker != null) edgeMaker.apply(starEdge);
}
}
}
Example #3
| Source File: GraknSparkExecutor.java From grakn with GNU Affero General Public License v3.0 | 6 votes |
|
public static <M> JavaPairRDD<Object, VertexWritable> prepareFinalGraphRDD(
final JavaPairRDD<Object, VertexWritable> graphRDD,
final JavaPairRDD<Object, ViewIncomingPayload<M>> viewIncomingRDD,
final Set<VertexComputeKey> vertexComputeKeys) {
// the graphRDD and the viewRDD must have the same partitioner
Preconditions.checkState(!graphRDD.partitioner().isPresent() || (graphRDD.partitioner().get().equals(viewIncomingRDD.partitioner().get())));
final String[] vertexComputeKeysArray = VertexProgramHelper.vertexComputeKeysAsArray(vertexComputeKeys); // the compute keys as an array
return graphRDD.leftOuterJoin(viewIncomingRDD)
.mapValues(tuple -> {
final StarGraph.StarVertex vertex = tuple._1().get();
vertex.dropVertexProperties(vertexComputeKeysArray); // drop all existing compute keys
// attach the final computed view to the cached graph
final List<DetachedVertexProperty<Object>> view = tuple._2().isPresent() ? tuple._2().get().getView() : Collections.emptyList();
for (final DetachedVertexProperty<Object> property : view) {
if (!VertexProgramHelper.isTransientVertexComputeKey(property.key(), vertexComputeKeys)){
property.attach(Attachable.Method.create(vertex));}
}
return tuple._1();
});
}
Example #4
| Source File: TinkerIoRegistryV3d0.java From tinkergraph-gremlin with Apache License 2.0 | 6 votes |
|
@Override
public TinkerGraph deserialize(final JsonParser jsonParser, final DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
final Configuration conf = new BaseConfiguration();
conf.setProperty("gremlin.tinkergraph.defaultVertexPropertyCardinality", "list");
final TinkerGraph graph = TinkerGraph.open(conf);
while (jsonParser.nextToken() != JsonToken.END_OBJECT) {
if (jsonParser.getCurrentName().equals("vertices")) {
while (jsonParser.nextToken() != JsonToken.END_ARRAY) {
if (jsonParser.currentToken() == JsonToken.START_OBJECT) {
final DetachedVertex v = (DetachedVertex) deserializationContext.readValue(jsonParser, Vertex.class);
v.attach(Attachable.Method.getOrCreate(graph));
}
}
} else if (jsonParser.getCurrentName().equals("edges")) {
while (jsonParser.nextToken() != JsonToken.END_ARRAY) {
if (jsonParser.currentToken() == JsonToken.START_OBJECT) {
final DetachedEdge e = (DetachedEdge) deserializationContext.readValue(jsonParser, Edge.class);
e.attach(Attachable.Method.getOrCreate(graph));
}
}
}
}
return graph;
}
Example #5
| Source File: TinkerIoRegistryV2d0.java From tinkergraph-gremlin with Apache License 2.0 | 6 votes |
|
@Override
public TinkerGraph deserialize(final JsonParser jsonParser, final DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
final Configuration conf = new BaseConfiguration();
conf.setProperty("gremlin.tinkergraph.defaultVertexPropertyCardinality", "list");
final TinkerGraph graph = TinkerGraph.open(conf);
while (jsonParser.nextToken() != JsonToken.END_OBJECT) {
if (jsonParser.getCurrentName().equals("vertices")) {
while (jsonParser.nextToken() != JsonToken.END_ARRAY) {
if (jsonParser.currentToken() == JsonToken.START_OBJECT) {
final DetachedVertex v = (DetachedVertex) deserializationContext.readValue(jsonParser, Vertex.class);
v.attach(Attachable.Method.getOrCreate(graph));
}
}
} else if (jsonParser.getCurrentName().equals("edges")) {
while (jsonParser.nextToken() != JsonToken.END_ARRAY) {
if (jsonParser.currentToken() == JsonToken.START_OBJECT) {
final DetachedEdge e = (DetachedEdge) deserializationContext.readValue(jsonParser, Edge.class);
e.attach(Attachable.Method.getOrCreate(graph));
}
}
}
}
return graph;
}
Example #6
| Source File: GraphSONReader.java From tinkerpop with Apache License 2.0 | 6 votes |
|
/**
* Read an {@link Edge} from output generated by {@link GraphSONWriter#writeEdge(OutputStream, Edge)} or via
* an {@link Edge} passed to {@link GraphSONWriter#writeObject(OutputStream, Object)}.
*
* @param inputStream a stream containing at least one {@link Edge} as defined by the accompanying
* {@link GraphWriter#writeEdge(OutputStream, Edge)} method.
* @param edgeAttachMethod a function that creates re-attaches a {@link Edge} to a {@link Host} object.
*/
@Override
public Edge readEdge(final InputStream inputStream, final Function<Attachable<Edge>, Edge> edgeAttachMethod) throws IOException {
if (version == GraphSONVersion.V1_0) {
final Map<String, Object> edgeData = mapper.readValue(inputStream, mapTypeReference);
final Map<String, Object> edgeProperties = edgeData.containsKey(GraphSONTokens.PROPERTIES) ?
(Map<String, Object>) edgeData.get(GraphSONTokens.PROPERTIES) : Collections.EMPTY_MAP;
final DetachedEdge edge = new DetachedEdge(edgeData.get(GraphSONTokens.ID),
edgeData.get(GraphSONTokens.LABEL).toString(),
edgeProperties,
edgeData.get(GraphSONTokens.OUT), edgeData.get(GraphSONTokens.OUT_LABEL).toString(),
edgeData.get(GraphSONTokens.IN), edgeData.get(GraphSONTokens.IN_LABEL).toString());
return edgeAttachMethod.apply(edge);
} else {
return edgeAttachMethod.apply((DetachedEdge) mapper.readValue(inputStream, Edge.class));
}
}
Example #7
| Source File: AddEdgeStep.java From tinkerpop with Apache License 2.0 | 6 votes |
|
@Override
protected Edge map(final Traverser.Admin<S> traverser) {
Vertex toVertex = this.parameters.get(traverser, TO, () -> (Vertex) traverser.get()).get(0);
Vertex fromVertex = this.parameters.get(traverser, FROM, () -> (Vertex) traverser.get()).get(0);
if (toVertex instanceof Attachable)
toVertex = ((Attachable<Vertex>) toVertex)
.attach(Attachable.Method.get(this.getTraversal().getGraph().orElse(EmptyGraph.instance())));
if (fromVertex instanceof Attachable)
fromVertex = ((Attachable<Vertex>) fromVertex)
.attach(Attachable.Method.get(this.getTraversal().getGraph().orElse(EmptyGraph.instance())));
final String edgeLabel = this.parameters.get(traverser, T.label, () -> Edge.DEFAULT_LABEL).get(0);
final Edge edge = fromVertex.addEdge(edgeLabel, toVertex, this.parameters.getKeyValues(traverser, TO, FROM, T.label));
if (callbackRegistry != null) {
final EventStrategy eventStrategy = getTraversal().getStrategies().getStrategy(EventStrategy.class).get();
final Event.EdgeAddedEvent vae = new Event.EdgeAddedEvent(eventStrategy.detach(edge));
callbackRegistry.getCallbacks().forEach(c -> c.accept(vae));
}
return edge;
}
Example #8
| Source File: StarGraphTest.java From tinkerpop with Apache License 2.0 | 6 votes |
|
@Test
@LoadGraphWith(LoadGraphWith.GraphData.CREW)
public void shouldAttachWithGetMethod() {
// vertex host
g.V().forEachRemaining(vertex -> TestHelper.validateEquality(vertex, StarGraph.of(vertex).getStarVertex().attach(Attachable.Method.get(vertex))));
g.V().forEachRemaining(vertex -> StarGraph.of(vertex).getStarVertex().properties().forEachRemaining(vertexProperty -> TestHelper.validateEquality(vertexProperty, ((Attachable<VertexProperty>) vertexProperty).attach(Attachable.Method.get(vertex)))));
g.V().forEachRemaining(vertex -> StarGraph.of(vertex).getStarVertex().properties().forEachRemaining(vertexProperty -> vertexProperty.properties().forEachRemaining(property -> TestHelper.validateEquality(property, ((Attachable<Property>) property).attach(Attachable.Method.get(vertex))))));
g.V().forEachRemaining(vertex -> StarGraph.of(vertex).getStarVertex().edges(Direction.OUT).forEachRemaining(edge -> TestHelper.validateEquality(edge, ((Attachable<Edge>) edge).attach(Attachable.Method.get(vertex)))));
g.V().forEachRemaining(vertex -> StarGraph.of(vertex).getStarVertex().edges(Direction.OUT).forEachRemaining(edge -> edge.properties().forEachRemaining(property -> TestHelper.validateEquality(property, ((Attachable<Property>) property).attach(Attachable.Method.get(vertex))))));
// graph host
g.V().forEachRemaining(vertex -> TestHelper.validateEquality(vertex, StarGraph.of(vertex).getStarVertex().attach(Attachable.Method.get(graph))));
g.V().forEachRemaining(vertex -> StarGraph.of(vertex).getStarVertex().properties().forEachRemaining(vertexProperty -> TestHelper.validateEquality(vertexProperty, ((Attachable<VertexProperty>) vertexProperty).attach(Attachable.Method.get(graph)))));
g.V().forEachRemaining(vertex -> StarGraph.of(vertex).getStarVertex().properties().forEachRemaining(vertexProperty -> vertexProperty.properties().forEachRemaining(property -> TestHelper.validateEquality(property, ((Attachable<Property>) property).attach(Attachable.Method.get(graph))))));
g.V().forEachRemaining(vertex -> StarGraph.of(vertex).getStarVertex().edges(Direction.OUT).forEachRemaining(edge -> TestHelper.validateEquality(edge, ((Attachable<Edge>) edge).attach(Attachable.Method.get(graph)))));
g.V().forEachRemaining(vertex -> StarGraph.of(vertex).getStarVertex().edges(Direction.OUT).forEachRemaining(edge -> edge.properties().forEachRemaining(property -> TestHelper.validateEquality(property, ((Attachable<Property>) property).attach(Attachable.Method.get(graph))))));
}
Example #9
| Source File: StarGraphTest.java From tinkerpop with Apache License 2.0 | 6 votes |
|
@Test
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_USER_SUPPLIED_IDS)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexPropertyFeatures.FEATURE_USER_SUPPLIED_IDS)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_USER_SUPPLIED_IDS)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_ADD_VERTICES)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_ADD_PROPERTY)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_META_PROPERTIES)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_MULTI_PROPERTIES)
@FeatureRequirement(featureClass = Graph.Features.EdgeFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_ADD_EDGES)
@FeatureRequirement(featureClass = Graph.Features.EdgeFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_ADD_PROPERTY)
public void shouldAttachWithCreateMethod() {
final Random random = TestHelper.RANDOM;
StarGraph starGraph = StarGraph.open();
Vertex starVertex = starGraph.addVertex(T.label, "person", "name", "stephen", "name", "spmallete");
starVertex.property("acl", true, "timestamp", random.nextLong(), "creator", "marko");
for (int i = 0; i < 100; i++) {
starVertex.addEdge("knows", starGraph.addVertex("person", "name", new UUID(random.nextLong(), random.nextLong()), "since", random.nextLong()));
starGraph.addVertex(T.label, "project").addEdge("developedBy", starVertex, "public", random.nextBoolean());
}
final Vertex createdVertex = starGraph.getStarVertex().attach(Attachable.Method.create(graph));
starGraph.getStarVertex().edges(Direction.BOTH).forEachRemaining(edge -> ((Attachable<Edge>) edge).attach(Attachable.Method.create(random.nextBoolean() ? graph : createdVertex)));
TestHelper.validateEquality(starVertex, createdVertex);
}
Example #10
| Source File: DetachedGraphTest.java From tinkerpop with Apache License 2.0 | 6 votes |
|
@Test
@LoadGraphWith(LoadGraphWith.GraphData.CREW)
public void testAttachableGetMethod() {
// vertex host
g.V().forEachRemaining(vertex -> TestHelper.validateEquality(vertex, DetachedFactory.detach(vertex, true).attach(Attachable.Method.get(vertex))));
g.V().forEachRemaining(vertex -> vertex.properties().forEachRemaining(vertexProperty -> TestHelper.validateEquality(vertexProperty, DetachedFactory.detach(vertexProperty, true).attach(Attachable.Method.get(vertex)))));
g.V().forEachRemaining(vertex -> vertex.properties().forEachRemaining(vertexProperty -> vertexProperty.properties().forEachRemaining(property -> TestHelper.validateEquality(property, DetachedFactory.detach(property).attach(Attachable.Method.get(vertex))))));
g.V().forEachRemaining(vertex -> vertex.edges(Direction.OUT).forEachRemaining(edge -> TestHelper.validateEquality(edge, DetachedFactory.detach(edge, true).attach(Attachable.Method.get(vertex)))));
g.V().forEachRemaining(vertex -> vertex.edges(Direction.OUT).forEachRemaining(edge -> edge.properties().forEachRemaining(property -> TestHelper.validateEquality(property, DetachedFactory.detach(property).attach(Attachable.Method.get(vertex))))));
// graph host
g.V().forEachRemaining(vertex -> TestHelper.validateEquality(vertex, DetachedFactory.detach(vertex, true).attach(Attachable.Method.get(graph))));
g.V().forEachRemaining(vertex -> vertex.properties().forEachRemaining(vertexProperty -> TestHelper.validateEquality(vertexProperty, DetachedFactory.detach(vertexProperty, true).attach(Attachable.Method.get(graph)))));
g.V().forEachRemaining(vertex -> vertex.properties().forEachRemaining(vertexProperty -> vertexProperty.properties().forEachRemaining(property -> TestHelper.validateEquality(property, DetachedFactory.detach(property).attach(Attachable.Method.get(graph))))));
g.V().forEachRemaining(vertex -> vertex.edges(Direction.OUT).forEachRemaining(edge -> TestHelper.validateEquality(edge, DetachedFactory.detach(edge, true).attach(Attachable.Method.get(graph)))));
g.V().forEachRemaining(vertex -> vertex.edges(Direction.OUT).forEachRemaining(edge -> edge.properties().forEachRemaining(property -> TestHelper.validateEquality(property, DetachedFactory.detach(property).attach(Attachable.Method.get(graph))))));
}
Example #11
| Source File: ReferenceGraphTest.java From tinkerpop with Apache License 2.0 | 6 votes |
|
@Test
@LoadGraphWith(LoadGraphWith.GraphData.CREW)
public void testAttachableGetMethod() {
// vertex host
g.V().forEachRemaining(vertex -> TestHelper.validateEquality(vertex, ReferenceFactory.detach(vertex).attach(Attachable.Method.get(vertex))));
g.V().forEachRemaining(vertex -> vertex.properties().forEachRemaining(vertexProperty -> TestHelper.validateEquality(vertexProperty, ReferenceFactory.detach(vertexProperty).attach(Attachable.Method.get(vertex)))));
g.V().forEachRemaining(vertex -> vertex.properties().forEachRemaining(vertexProperty -> vertexProperty.properties().forEachRemaining(property -> TestHelper.validateEquality(property, ReferenceFactory.detach(property).attach(Attachable.Method.get(vertex))))));
g.V().forEachRemaining(vertex -> vertex.edges(Direction.OUT).forEachRemaining(edge -> TestHelper.validateEquality(edge, ReferenceFactory.detach(edge).attach(Attachable.Method.get(vertex)))));
g.V().forEachRemaining(vertex -> vertex.edges(Direction.OUT).forEachRemaining(edge -> edge.properties().forEachRemaining(property -> TestHelper.validateEquality(property, ReferenceFactory.detach(property).attach(Attachable.Method.get(vertex))))));
// graph host
g.V().forEachRemaining(vertex -> TestHelper.validateEquality(vertex, ReferenceFactory.detach(vertex).attach(Attachable.Method.get(graph))));
g.V().forEachRemaining(vertex -> vertex.properties().forEachRemaining(vertexProperty -> TestHelper.validateEquality(vertexProperty, ReferenceFactory.detach(vertexProperty).attach(Attachable.Method.get(graph)))));
g.V().forEachRemaining(vertex -> vertex.properties().forEachRemaining(vertexProperty -> vertexProperty.properties().forEachRemaining(property -> TestHelper.validateEquality(property, ReferenceFactory.detach(property).attach(Attachable.Method.get(graph))))));
g.V().forEachRemaining(vertex -> vertex.edges(Direction.OUT).forEachRemaining(edge -> TestHelper.validateEquality(edge, ReferenceFactory.detach(edge).attach(Attachable.Method.get(graph)))));
g.V().forEachRemaining(vertex -> vertex.edges(Direction.OUT).forEachRemaining(edge -> edge.properties().forEachRemaining(property -> TestHelper.validateEquality(property, ReferenceFactory.detach(property).attach(Attachable.Method.get(graph))))));
}
Example #12
| Source File: TinkerIoRegistryV3d0.java From tinkerpop with Apache License 2.0 | 6 votes |
|
@Override
public TinkerGraph deserialize(final JsonParser jsonParser, final DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
final Configuration conf = new BaseConfiguration();
conf.setProperty("gremlin.tinkergraph.defaultVertexPropertyCardinality", "list");
final TinkerGraph graph = TinkerGraph.open(conf);
while (jsonParser.nextToken() != JsonToken.END_OBJECT) {
if (jsonParser.getCurrentName().equals("vertices")) {
while (jsonParser.nextToken() != JsonToken.END_ARRAY) {
if (jsonParser.currentToken() == JsonToken.START_OBJECT) {
final DetachedVertex v = (DetachedVertex) deserializationContext.readValue(jsonParser, Vertex.class);
v.attach(Attachable.Method.getOrCreate(graph));
}
}
} else if (jsonParser.getCurrentName().equals("edges")) {
while (jsonParser.nextToken() != JsonToken.END_ARRAY) {
if (jsonParser.currentToken() == JsonToken.START_OBJECT) {
final DetachedEdge e = (DetachedEdge) deserializationContext.readValue(jsonParser, Edge.class);
e.attach(Attachable.Method.getOrCreate(graph));
}
}
}
}
return graph;
}
Example #13
| Source File: TinkerIoRegistryV2d0.java From tinkerpop with Apache License 2.0 | 6 votes |
|
@Override
public TinkerGraph deserialize(final JsonParser jsonParser, final DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
final Configuration conf = new BaseConfiguration();
conf.setProperty("gremlin.tinkergraph.defaultVertexPropertyCardinality", "list");
final TinkerGraph graph = TinkerGraph.open(conf);
while (jsonParser.nextToken() != JsonToken.END_OBJECT) {
if (jsonParser.getCurrentName().equals("vertices")) {
while (jsonParser.nextToken() != JsonToken.END_ARRAY) {
if (jsonParser.currentToken() == JsonToken.START_OBJECT) {
final DetachedVertex v = (DetachedVertex) deserializationContext.readValue(jsonParser, Vertex.class);
v.attach(Attachable.Method.getOrCreate(graph));
}
}
} else if (jsonParser.getCurrentName().equals("edges")) {
while (jsonParser.nextToken() != JsonToken.END_ARRAY) {
if (jsonParser.currentToken() == JsonToken.START_OBJECT) {
final DetachedEdge e = (DetachedEdge) deserializationContext.readValue(jsonParser, Edge.class);
e.attach(Attachable.Method.getOrCreate(graph));
}
}
}
}
return graph;
}
Example #14
| Source File: SparkExecutor.java From tinkerpop with Apache License 2.0 | 6 votes |
|
public static <M> JavaPairRDD<Object, VertexWritable> prepareFinalGraphRDD(
final JavaPairRDD<Object, VertexWritable> graphRDD,
final JavaPairRDD<Object, ViewIncomingPayload<M>> viewIncomingRDD,
final Set<VertexComputeKey> vertexComputeKeys) {
// the graphRDD and the viewRDD must have the same partitioner
if (graphRDD.partitioner().isPresent())
assert (graphRDD.partitioner().get().equals(viewIncomingRDD.partitioner().get()));
final String[] vertexComputeKeysArray = VertexProgramHelper.vertexComputeKeysAsArray(vertexComputeKeys); // the compute keys as an array
return graphRDD.leftOuterJoin(viewIncomingRDD)
.mapValues(tuple -> {
final StarGraph.StarVertex vertex = tuple._1().get();
vertex.dropVertexProperties(vertexComputeKeysArray); // drop all existing compute keys
// attach the final computed view to the cached graph
final List<DetachedVertexProperty<Object>> view = tuple._2().isPresent() ? tuple._2().get().getView() : Collections.emptyList();
for (final DetachedVertexProperty<Object> property : view) {
if (!VertexProgramHelper.isTransientVertexComputeKey(property.key(), vertexComputeKeys))
property.attach(Attachable.Method.create(vertex));
}
return tuple._1();
});
}
Example #15
| Source File: ReferenceVertexPropertyTest.java From tinkerpop with Apache License 2.0 | 5 votes |
|
@Test
@FeatureRequirementSet(FeatureRequirementSet.Package.SIMPLE)
public void shouldAttachToVertex() {
final Vertex v = graph.addVertex();
final VertexProperty toReference = v.property(VertexProperty.Cardinality.single, "test", "this");
final ReferenceVertexProperty<?> rvp = ReferenceFactory.detach(toReference);
final VertexProperty referenced = rvp.attach(Attachable.Method.get(v));
assertEquals(toReference, referenced);
assertEquals(toReference.getClass(), referenced.getClass());
assertFalse(referenced instanceof ReferenceVertexProperty);
}
Example #16
| Source File: DriverRemoteTraversal.java From tinkerpop with Apache License 2.0 | 5 votes |
|
@Override
public Traverser.Admin<E> next() {
final Traverser.Admin<E> traverser = super.next();
if (traverser.get() instanceof Attachable && !(traverser.get() instanceof Property))
traverser.set((E) ((Attachable<Element>) traverser.get()).attach(Attachable.Method.get(graph)));
return traverser;
}
Example #17
| Source File: ReferenceVertexTest.java From tinkerpop with Apache License 2.0 | 5 votes |
|
@Test
@LoadGraphWith(LoadGraphWith.GraphData.MODERN)
public void shouldAttachToVertex() {
final Vertex v = g.V(convertToVertexId("josh")).next();
final ReferenceVertex referenceVertex = ReferenceFactory.detach(v);
final Vertex attachedV = referenceVertex.attach(Attachable.Method.get(v));
assertEquals(v, attachedV);
assertFalse(attachedV instanceof ReferenceVertex);
}
Example #18
| Source File: ReferenceVertexTest.java From tinkerpop with Apache License 2.0 | 5 votes |
|
@Test
@LoadGraphWith(LoadGraphWith.GraphData.MODERN)
public void shouldAttachToGraph() {
final Vertex v = g.V(convertToVertexId("josh")).next();
final ReferenceVertex referenceVertex = ReferenceFactory.detach(v);
final Vertex attachedV = referenceVertex.attach(Attachable.Method.get(graph));
assertEquals(v, attachedV);
assertFalse(attachedV instanceof ReferenceVertex);
}
Example #19
| Source File: ReferenceVertexPropertyTest.java From tinkerpop with Apache License 2.0 | 5 votes |
|
@Test
@FeatureRequirementSet(FeatureRequirementSet.Package.SIMPLE)
public void shouldAttachToGraph() {
final Vertex v = graph.addVertex();
final VertexProperty toReference = v.property(VertexProperty.Cardinality.single, "test", "this");
final ReferenceVertexProperty<?> rvp = ReferenceFactory.detach(toReference);
final VertexProperty referenced = rvp.attach(Attachable.Method.get(graph));
assertEquals(toReference, referenced);
assertFalse(referenced instanceof ReferenceVertexProperty);
}
Example #20
| Source File: DetachedEdgeTest.java From tinkerpop with Apache License 2.0 | 5 votes |
|
@Test
@LoadGraphWith(GraphData.MODERN)
public void shouldAttachToGraph() {
final Edge toDetach = g.E(convertToEdgeId("josh", "created", "lop")).next();
final DetachedEdge detachedEdge = DetachedFactory.detach(toDetach, true);
final Edge attached = detachedEdge.attach(Attachable.Method.get(graph));
assertEquals(toDetach, attached);
assertFalse(attached instanceof DetachedEdge);
}
Example #21
| Source File: DetachedGraphTest.java From tinkerpop with Apache License 2.0 | 5 votes |
|
@Test
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_USER_SUPPLIED_IDS)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexPropertyFeatures.FEATURE_USER_SUPPLIED_IDS)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_USER_SUPPLIED_IDS)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_ADD_VERTICES)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_ADD_PROPERTY)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_META_PROPERTIES)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_MULTI_PROPERTIES)
@FeatureRequirement(featureClass = Graph.Features.EdgeFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_ADD_EDGES)
@FeatureRequirement(featureClass = Graph.Features.EdgeFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_ADD_PROPERTY)
public void testAttachableCreateMethod() {
final Random random = TestHelper.RANDOM;
StarGraph starGraph = StarGraph.open();
Vertex starVertex = starGraph.addVertex(T.label, "person", "name", "stephen", "name", "spmallete");
starVertex.property("acl", true, "timestamp", random.nextLong(), "creator", "marko");
for (int i = 0; i < 100; i++) {
starVertex.addEdge("knows", starGraph.addVertex("person", "name", new UUID(random.nextLong(), random.nextLong()), "since", random.nextLong()));
starGraph.addVertex(T.label, "project").addEdge("developedBy", starVertex, "public", random.nextBoolean());
}
final DetachedVertex detachedVertex = DetachedFactory.detach(starGraph.getStarVertex(), true);
final Vertex createdVertex = detachedVertex.attach(Attachable.Method.create(graph));
TestHelper.validateVertexEquality(detachedVertex, createdVertex, false);
TestHelper.validateVertexEquality(detachedVertex, starVertex, false);
starGraph.getStarVertex().edges(Direction.BOTH).forEachRemaining(starEdge -> {
final DetachedEdge detachedEdge = DetachedFactory.detach(starEdge, true);
final Edge createdEdge = detachedEdge.attach(Attachable.Method.create(random.nextBoolean() ? graph : createdVertex));
TestHelper.validateEdgeEquality(detachedEdge, starEdge);
TestHelper.validateEdgeEquality(detachedEdge, createdEdge);
});
}
Example #22
| Source File: DetachedVertexPropertyTest.java From tinkerpop with Apache License 2.0 | 5 votes |
|
@Test
@FeatureRequirementSet(FeatureRequirementSet.Package.SIMPLE)
public void shouldAttachToVertex() {
final Vertex v = graph.addVertex();
final VertexProperty toDetach = v.property(VertexProperty.Cardinality.single, "test", "this");
final DetachedVertexProperty<?> detached = DetachedFactory.detach(toDetach, true);
final VertexProperty attached = detached.attach(Attachable.Method.get(v));
assertEquals(toDetach, attached);
assertEquals(toDetach.getClass(), attached.getClass());
assertFalse(attached instanceof DetachedVertexProperty);
}
Example #23
| Source File: DetachedVertexPropertyTest.java From tinkerpop with Apache License 2.0 | 5 votes |
|
@Test
@FeatureRequirementSet(FeatureRequirementSet.Package.SIMPLE)
public void shouldAttachToGraph() {
final Vertex v = graph.addVertex();
final VertexProperty toDetach = v.property(VertexProperty.Cardinality.single, "test", "this");
final DetachedVertexProperty<?> detached = DetachedFactory.detach(toDetach, true);
final VertexProperty attached = detached.attach(Attachable.Method.get(graph));
assertEquals(toDetach, attached);
assertFalse(attached instanceof DetachedVertexProperty);
}
Example #24
| Source File: DetachedPropertyTest.java From tinkerpop with Apache License 2.0 | 5 votes |
|
@Test
@LoadGraphWith(LoadGraphWith.GraphData.MODERN)
public void shouldAttachToVertex() {
final Edge e = g.E(convertToEdgeId("josh", "created", "lop")).next();
final Property toDetach = e.property("weight");
final DetachedProperty<?> detachedProperty = DetachedFactory.detach(toDetach);
final Property attached = detachedProperty.attach(Attachable.Method.get(e.outVertex()));
assertEquals(toDetach, attached);
assertFalse(attached instanceof DetachedProperty);
}
Example #25
| Source File: DetachedPropertyTest.java From tinkerpop with Apache License 2.0 | 5 votes |
|
@Test
@LoadGraphWith(LoadGraphWith.GraphData.MODERN)
public void shouldAttachToGraph() {
final Edge e = g.E(convertToEdgeId("josh", "created", "lop")).next();
final Property toDetach = e.properties("weight").next();
final DetachedProperty<?> detachedProperty = DetachedFactory.detach(toDetach);
final Property attached = detachedProperty.attach(Attachable.Method.get(graph));
assertEquals(toDetach, attached);
assertFalse(attached instanceof DetachedProperty);
}
Example #26
| Source File: StarGraphTest.java From tinkerpop with Apache License 2.0 | 5 votes |
|
@Test
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_USER_SUPPLIED_IDS)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexPropertyFeatures.FEATURE_USER_SUPPLIED_IDS)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_USER_SUPPLIED_IDS)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_ADD_VERTICES)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_ADD_PROPERTY)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_META_PROPERTIES)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_MULTI_PROPERTIES)
@FeatureRequirement(featureClass = Graph.Features.EdgeFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_ADD_EDGES)
@FeatureRequirement(featureClass = Graph.Features.EdgeFeatures.class, feature = Graph.Features.EdgeFeatures.FEATURE_ADD_PROPERTY)
@LoadGraphWith(LoadGraphWith.GraphData.MODERN)
public void shouldCopyFromGraphAToGraphB() throws Exception {
final List<StarGraph> starGraphs = IteratorUtils.stream(graph.vertices()).map(StarGraph::of).collect(Collectors.toList());
// via vertices and then edges
final Configuration g1Configuration = graphProvider.newGraphConfiguration("readGraph", this.getClass(), name.getMethodName(), null);
Graph g1 = graphProvider.openTestGraph(g1Configuration);
starGraphs.stream().map(StarGraph::getStarVertex).forEach(vertex -> vertex.attach(Attachable.Method.getOrCreate(g1)));
starGraphs.stream().forEach(starGraph -> starGraph.edges().forEachRemaining(edge -> ((Attachable<Edge>) edge).attach(Attachable.Method.getOrCreate(g1))));
assertEquals(IteratorUtils.count(graph.vertices()), IteratorUtils.count(g1.vertices()));
assertEquals(IteratorUtils.count(graph.edges()), IteratorUtils.count(g1.edges()));
graph.vertices().forEachRemaining(vertex -> TestHelper.validateVertexEquality(vertex, g1.vertices(vertex.id()).next(), true));
graphProvider.clear(g1, g1Configuration);
// via edges only
final Configuration g2Configuration = graphProvider.newGraphConfiguration("readGraph", this.getClass(), name.getMethodName(), null);
final Graph g2 = graphProvider.openTestGraph(g2Configuration);
starGraphs.stream().forEach(starGraph -> starGraph.edges().forEachRemaining(edge -> ((Attachable<Edge>) edge).attach(Attachable.Method.getOrCreate(g2))));
assertEquals(IteratorUtils.count(graph.vertices()), IteratorUtils.count(g2.vertices()));
assertEquals(IteratorUtils.count(graph.edges()), IteratorUtils.count(g2.edges()));
// TODO: you can't get adjacent labels -- graph.vertices().forEachRemaining(vertex -> TestHelper.validateVertexEquality(vertex, g1.vertices(vertex.id()).next(), true));
graphProvider.clear(g2, g2Configuration);
}
Example #27
| Source File: ComputerResultStep.java From tinkerpop with Apache License 2.0 | 5 votes |
|
public Iterator<Traverser.Admin<S>> attach(final Iterator<Traverser.Admin<S>> iterator, final Graph graph) {
return IteratorUtils.map(iterator, traverser -> {
traverser.setSideEffects(this.getTraversal().getSideEffects()); // necessary to ensure no NPE
if (this.attachElements && (traverser.get() instanceof Attachable) && !(traverser.get() instanceof Property))
traverser.set((S) ((Attachable<Element>) traverser.get()).attach(Attachable.Method.get(graph)));
return traverser;
});
}
Example #28
| Source File: AbstractTraverser.java From tinkerpop with Apache License 2.0 | 5 votes |
|
@Override
public T attach(final Function<Attachable<T>, T> method) {
// you do not want to attach a path because it will reference graph objects not at the current vertex
if (this.t instanceof Attachable && !(((Attachable) this.t).get() instanceof Path))
this.t = ((Attachable<T>) this.t).attach(method);
return this.t;
}
Example #29
| Source File: AddEdgeStartStep.java From tinkerpop with Apache License 2.0 | 5 votes |
|
@Override
protected Traverser.Admin<Edge> processNextStart() {
if (this.first) {
this.first = false;
final TraverserGenerator generator = this.getTraversal().getTraverserGenerator();
final Traverser.Admin traverser = generator.generate(1, (Step) this, 1); // a dead traverser to trigger the traversal
Vertex toVertex = (Vertex) this.parameters.get(traverser, TO, Collections::emptyList).get(0);
Vertex fromVertex = (Vertex) this.parameters.get(traverser, FROM, Collections::emptyList).get(0);
if (toVertex instanceof Attachable)
toVertex = ((Attachable<Vertex>) toVertex)
.attach(Attachable.Method.get(this.getTraversal().getGraph().orElse(EmptyGraph.instance())));
if (fromVertex instanceof Attachable)
fromVertex = ((Attachable<Vertex>) fromVertex)
.attach(Attachable.Method.get(this.getTraversal().getGraph().orElse(EmptyGraph.instance())));
final String edgeLabel = (String) this.parameters.get(traverser, T.label, () -> Edge.DEFAULT_LABEL).get(0);
final Edge edge = fromVertex.addEdge(edgeLabel, toVertex, this.parameters.getKeyValues(traverser, TO, FROM, T.label));
if (callbackRegistry != null) {
final EventStrategy eventStrategy = getTraversal().getStrategies().getStrategy(EventStrategy.class).get();
final Event.EdgeAddedEvent vae = new Event.EdgeAddedEvent(eventStrategy.detach(edge));
callbackRegistry.getCallbacks().forEach(c -> c.accept(vae));
}
return generator.generate(edge, this, 1L);
} else
throw FastNoSuchElementException.instance();
}
Example #30
| Source File: GryoReader.java From tinkerpop with Apache License 2.0 | 5 votes |
|
/**
* Read data into a {@link Graph} from output generated by any of the {@link GryoWriter} {@code writeVertex} or
* {@code writeVertices} methods or by {@link GryoWriter#writeGraph(OutputStream, Graph)}.
*
* @param inputStream a stream containing an entire graph of vertices and edges as defined by the accompanying
* {@link GraphWriter#writeGraph(OutputStream, Graph)}.
* @param graphToWriteTo the graph to write to when reading from the stream.
* @throws IOException
*/
@Override
public void readGraph(final InputStream inputStream, final Graph graphToWriteTo) throws IOException {
// dual pass - create all vertices and store to cache the ids. then create edges. as long as we don't
// have vertex labels in the output we can't do this single pass
final Map<StarGraph.StarVertex, Vertex> cache = new HashMap<>();
final AtomicLong counter = new AtomicLong(0);
final Graph.Features.EdgeFeatures edgeFeatures = graphToWriteTo.features().edge();
final boolean supportsTx = graphToWriteTo.features().graph().supportsTransactions();
IteratorUtils.iterate(new VertexInputIterator(new Input(inputStream), attachable -> {
final Vertex v = cache.put((StarGraph.StarVertex) attachable.get(), attachable.attach(Attachable.Method.create(graphToWriteTo)));
if (supportsTx && counter.incrementAndGet() % batchSize == 0)
graphToWriteTo.tx().commit();
return v;
}, null, null));
cache.entrySet().forEach(kv -> kv.getKey().edges(Direction.IN).forEachRemaining(e -> {
// can't use a standard Attachable attach method here because we have to use the cache for those
// graphs that don't support userSuppliedIds on edges. note that outVertex/inVertex methods return
// StarAdjacentVertex whose equality should match StarVertex.
final Vertex cachedOutV = cache.get(e.outVertex());
final Vertex cachedInV = cache.get(e.inVertex());
if (null == cachedOutV) throw new IllegalStateException(String.format("Could not find outV with id [%s] to create edge with id [%s]", e.outVertex().id(), e.id()));
if (null == cachedInV) throw new IllegalStateException(String.format("Could not find inV with id [%s] to create edge with id [%s]", e.inVertex().id(), e.id()));
final Edge newEdge = edgeFeatures.willAllowId(e.id()) ? cachedOutV.addEdge(e.label(), cachedInV, T.id, e.id()) : cachedOutV.addEdge(e.label(), cachedInV);
e.properties().forEachRemaining(p -> newEdge.property(p.key(), p.value()));
if (supportsTx && counter.incrementAndGet() % batchSize == 0)
graphToWriteTo.tx().commit();
}));
if (supportsTx) graphToWriteTo.tx().commit();
}
