org.apache.tinkerpop.gremlin.structure.Vertex.keys()方法的使用及代码示例

x33g5p2x  于2022-01-31 转载在 其他  
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本文整理了Java中org.apache.tinkerpop.gremlin.structure.Vertex.keys()方法的一些代码示例，展示了Vertex.keys()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Vertex.keys()方法的具体详情如下：
包路径：org.apache.tinkerpop.gremlin.structure.Vertex
类名称：Vertex
方法名：keys

Vertex.keys介绍

暂无

代码示例

代码示例来源：origin: apache/tinkerpop

@Override
public Set<String> keys() {
  if (null == this.properties) return Collections.emptySet();
  return TinkerHelper.inComputerMode((TinkerGraph) graph()) ?
      Vertex.super.keys() :
      this.properties.keySet();
}

代码示例来源：origin: apache/tinkerpop

private static Map<String, String> determineVertexTypes(final Graph graph) {
  final Map<String, String> vertexKeyTypes = new HashMap<>();
  final Iterator<Vertex> vertices = graph.vertices();
  while (vertices.hasNext()) {
    final Vertex vertex = vertices.next();
    for (String key : vertex.keys()) {
      if (!vertexKeyTypes.containsKey(key)) {
        vertexKeyTypes.put(key, GraphMLWriter.getStringType(vertex.property(key).value()));
      }
    }
  }
  return vertexKeyTypes;
}

代码示例来源：origin: apache/tinkerpop

private static void vertexPropertyChecks(final Vertex v) {
  assertEquals(2, v.keys().size());
  assertTrue(v.keys().contains(VertexProgramR.PROPERTY_IN));
  assertTrue(v.keys().contains(VertexProgramR.PROPERTY_OUT));
  assertEquals(1, IteratorUtils.count(v.values(VertexProgramR.PROPERTY_IN)));
  assertEquals(1, IteratorUtils.count(v.values(VertexProgramR.PROPERTY_OUT)));
}

代码示例来源：origin: apache/tinkerpop

private void writeProperties(final Vertex vertex, final JsonGenerator jsonGenerator) throws IOException {
    if (vertex.keys().size() == 0)
      return;
    jsonGenerator.writeFieldName(GraphSONTokens.PROPERTIES);
    jsonGenerator.writeStartObject();
    final List<String> keys = normalize ?
        IteratorUtils.list(vertex.keys().iterator(), Comparator.naturalOrder()) : new ArrayList<>(vertex.keys());
    for (String key : keys) {
      final Iterator<VertexProperty<Object>> vertexProperties = normalize ?
          IteratorUtils.list(vertex.properties(key), Comparators.PROPERTY_COMPARATOR).iterator() : vertex.properties(key);
      if (vertexProperties.hasNext()) {
        jsonGenerator.writeFieldName(key);
        jsonGenerator.writeStartArray();
        while (vertexProperties.hasNext()) {
          jsonGenerator.writeObject(vertexProperties.next());
        }
        jsonGenerator.writeEndArray();
      }
    }
    jsonGenerator.writeEndObject();
  }
}

代码示例来源：origin: apache/tinkerpop

private void writeProperties(final Vertex vertex, final JsonGenerator jsonGenerator) throws IOException {
    if (vertex.keys().size() == 0)
      return;
    jsonGenerator.writeFieldName(GraphSONTokens.PROPERTIES);
    jsonGenerator.writeStartObject();
    final List<String> keys = normalize ?
        IteratorUtils.list(vertex.keys().iterator(), Comparator.naturalOrder()) : new ArrayList<>(vertex.keys());
    for (String key : keys) {
      final Iterator<VertexProperty<Object>> vertexProperties = normalize ?
          IteratorUtils.list(vertex.properties(key), Comparators.PROPERTY_COMPARATOR).iterator() : vertex.properties(key);
      if (vertexProperties.hasNext()) {
        jsonGenerator.writeFieldName(key);
        jsonGenerator.writeStartArray();
        while (vertexProperties.hasNext()) {
          jsonGenerator.writeObject(vertexProperties.next());
        }
        jsonGenerator.writeEndArray();
      }
    }
    jsonGenerator.writeEndObject();
  }
}

代码示例来源：origin: apache/tinkerpop

@Test
@FeatureRequirementSet(FeatureRequirementSet.Package.VERTICES_ONLY)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = Graph.Features.VertexFeatures.FEATURE_REMOVE_PROPERTY)
public void shouldGetPropertyKeysOnVertex() {
  final Vertex v = graph.addVertex("name", "marko", "location", "desert", "status", "dope");
  Set<String> keys = v.keys();
  assertEquals(3, keys.size());
  assertTrue(keys.contains("name"));
  assertTrue(keys.contains("location"));
  assertTrue(keys.contains("status"));
  final List<VertexProperty<Object>> m = IteratorUtils.list(v.properties());
  assertEquals(3, m.size());
  assertTrue(m.stream().anyMatch(p -> p.key().equals("name")));
  assertTrue(m.stream().anyMatch(p -> p.key().equals("location")));
  assertTrue(m.stream().anyMatch(p -> p.key().equals("status")));
  assertEquals("marko", m.stream().filter(p -> p.key().equals("name")).map(Property::value).findAny().orElse(null));
  assertEquals("desert", m.stream().filter(p -> p.key().equals("location")).map(Property::value).findAny().orElse(null));
  assertEquals("dope", m.stream().filter(p -> p.key().equals("status")).map(Property::value).findAny().orElse(null));
  v.property("status").remove();
  keys = v.keys();
  assertEquals(2, keys.size());
  assertTrue(keys.contains("name"));
  assertTrue(keys.contains("location"));
  v.properties().forEachRemaining(Property::remove);
  keys = v.keys();
  assertEquals(0, keys.size());
}

代码示例来源：origin: apache/tinkerpop

private void writeProperties(final Vertex vertex, final JsonGenerator jsonGenerator,
                  final SerializerProvider serializerProvider, final TypeSerializer typeSerializer) throws IOException {
  jsonGenerator.writeObjectFieldStart(GraphSONTokens.PROPERTIES);
  if (typeSerializer != null) jsonGenerator.writeStringField(GraphSONTokens.CLASS, HashMap.class.getName());
  final List<String> keys = normalize ?
      IteratorUtils.list(vertex.keys().iterator(), Comparator.naturalOrder()) : new ArrayList<>(vertex.keys());
  for (String key : keys) {
    final Iterator<VertexProperty<Object>> vertexProperties = normalize ?
        IteratorUtils.list(vertex.properties(key), Comparators.PROPERTY_COMPARATOR).iterator() : vertex.properties(key);
    if (vertexProperties.hasNext()) {
      jsonGenerator.writeArrayFieldStart(key);
      if (typeSerializer != null) {
        jsonGenerator.writeString(ArrayList.class.getName());
        jsonGenerator.writeStartArray();
      }
      while (vertexProperties.hasNext()) {
        serializerVertexProperty(vertexProperties.next(), jsonGenerator, serializerProvider, typeSerializer, normalize, false);
      }
      jsonGenerator.writeEndArray();
      if (typeSerializer != null) jsonGenerator.writeEndArray();
    }
  }
  jsonGenerator.writeEndObject();
}

代码示例来源：origin: apache/tinkerpop

public static void validateVertexEquality(final Vertex originalVertex, final Vertex otherVertex, boolean testEdges) {
  assertEquals(originalVertex, otherVertex);
  assertEquals(otherVertex, originalVertex);
  assertEquals(originalVertex.id(), otherVertex.id());
  assertEquals(originalVertex.label(), otherVertex.label());
  assertEquals(originalVertex.keys().size(), otherVertex.keys().size());
  for (final String key : originalVertex.keys()) {
    final List<VertexProperty<Object>> originalVertexProperties = IteratorUtils.list(originalVertex.properties(key));
    final List<VertexProperty<Object>> otherVertexProperties = IteratorUtils.list(otherVertex.properties(key));
    assertEquals(originalVertexProperties.size(), otherVertexProperties.size());
    for (VertexProperty<Object> originalVertexProperty : originalVertexProperties) {
      final VertexProperty<Object> otherVertexProperty = otherVertexProperties.parallelStream().filter(vp -> vp.equals(originalVertexProperty)).findAny().get();
      validateVertexPropertyEquality(originalVertexProperty, otherVertexProperty);
    }
  }
  if (testEdges) {
    Iterator<Edge> originalEdges = IteratorUtils.list(originalVertex.edges(Direction.OUT), Comparators.ELEMENT_COMPARATOR).iterator();
    Iterator<Edge> otherEdges = IteratorUtils.list(otherVertex.edges(Direction.OUT), Comparators.ELEMENT_COMPARATOR).iterator();
    while (originalEdges.hasNext()) {
      validateEdgeEquality(originalEdges.next(), otherEdges.next());
    }
    assertFalse(otherEdges.hasNext());
    originalEdges = IteratorUtils.list(originalVertex.edges(Direction.IN), Comparators.ELEMENT_COMPARATOR).iterator();
    otherEdges = IteratorUtils.list(otherVertex.edges(Direction.IN), Comparators.ELEMENT_COMPARATOR).iterator();
    while (originalEdges.hasNext()) {
      validateEdgeEquality(originalEdges.next(), otherEdges.next());
    }
    assertFalse(otherEdges.hasNext());
  }
}

代码示例来源：origin: apache/tinkerpop

assertEquals("marko", v.<String>property("name").value());
assertEquals(2, IteratorUtils.count(v.properties()));
assertEquals(2, v.keys().size());
assertTrue(v.keys().contains("name"));
assertTrue(v.keys().contains("age"));
assertFalse(v.keys().contains("location"));
assertVertexEdgeCounts(graph, 1, 0);
assertEquals("marko rodriguez", v.<String>property("name").value());
assertEquals(2, IteratorUtils.count(v.properties()));
assertEquals(2, v.keys().size());
assertTrue(v.keys().contains("name"));
assertTrue(v.keys().contains("age"));
assertFalse(v.keys().contains("location"));
assertVertexEdgeCounts(graph, 1, 0);
assertEquals(3, v.keys().size());
assertEquals("santa fe", v.property("location").value());
assertEquals(v.property("location"), v.property("location"));
assertNotEquals(v.property("location"), v.property("name"));
assertTrue(v.keys().contains("name"));
assertTrue(v.keys().contains("age"));
assertTrue(v.keys().contains("location"));
v.property("location").remove();
assertVertexEdgeCounts(graph, 1, 0);

代码示例来源：origin: apache/tinkerpop

program(PageRankVertexProgram.build().epsilon(0.0d).iterations(30).create(graph)).submit().get(); // by using epsilon 0.0, we guarantee iterations 30
result.graph().traversal().V().forEachRemaining(v -> {
  assertEquals(3, v.keys().size()); // name, age/lang, pageRank
  assertTrue(v.keys().contains("name"));
  assertTrue(v.keys().contains(PageRankVertexProgram.PAGE_RANK));
  assertEquals(1, IteratorUtils.count(v.values("name")));
  assertEquals(1, IteratorUtils.count(v.values(PageRankVertexProgram.PAGE_RANK)));

代码示例来源：origin: apache/tinkerpop

program(PageRankVertexProgram.build().epsilon(0.00001d).iterations(30).create(graph)).submit().get(); // by using epsilon 0.00001, we should get iterations 11
result.graph().traversal().V().forEachRemaining(v -> {
  assertEquals(3, v.keys().size()); // name, age/lang, pageRank
  assertTrue(v.keys().contains("name"));
  assertTrue(v.keys().contains(PageRankVertexProgram.PAGE_RANK));
  assertEquals(1, IteratorUtils.count(v.values("name")));
  assertEquals(1, IteratorUtils.count(v.values(PageRankVertexProgram.PAGE_RANK)));

代码示例来源：origin: apache/tinkerpop

public static void assertNoEdgeGraph(final Graph g1, final boolean assertDouble, final boolean lossyForId) {
  assertEquals(2, IteratorUtils.count(g1.vertices()));
  assertEquals(1, IteratorUtils.count(g1.edges()));
  final Vertex v1 = g1.traversal().V().has("name", "marko").next();
  assertEquals(29, v1.<Integer>value("age").intValue());
  assertEquals(2, v1.keys().size());
  assertEquals(Vertex.DEFAULT_LABEL, v1.label());
  assertId(g1, lossyForId, v1, 1);
  final List<Edge> v1Edges = IteratorUtils.list(v1.edges(Direction.BOTH));
  assertEquals(1, v1Edges.size());
  v1Edges.forEach(e -> {
    if (e.inVertex().value("name").equals("vadas")) {
      assertEquals(Edge.DEFAULT_LABEL, e.label());
      if (assertDouble)
        assertWeightLoosely(0.5d, e);
      else
        assertWeightLoosely(0.5f, e);
      assertEquals(1, e.keys().size());
      assertId(g1, lossyForId, e, 7);
    } else {
      fail("Edge not expected");
    }
  });
}

代码示例来源：origin: apache/tinkerpop

assertEquals(2, v1.keys().size());
assertEquals(4, (int) IteratorUtils.count(v1.properties("location")));
v1.properties("location").forEachRemaining(vp -> {
assertEquals(2, v7.keys().size());
assertEquals(3, (int) IteratorUtils.count(v7.properties("location")));
v7.properties("location").forEachRemaining(vp -> {
assertEquals(2, v8.keys().size());
assertEquals(4, (int) IteratorUtils.count(v8.properties("location")));
v8.properties("location").forEachRemaining(vp -> {
assertEquals(2, v9.keys().size());
assertEquals(3, (int) IteratorUtils.count(v9.properties("location")));
v9.properties("location").forEachRemaining(vp -> {
assertEquals(1, v10.keys().size());
assertId(g1, lossyForId, v10, 10);
assertEquals(1, v11.keys().size());
assertId(g1, lossyForId, v11, 11);

代码示例来源：origin: apache/tinkerpop

assertEquals(2, v1.keys().size());
assertEquals(assertSpecificLabel ? "person" : Vertex.DEFAULT_LABEL, v1.label());
assertId(g1, lossyForId, v1, 1);
assertEquals(2, v2.keys().size());
assertEquals(assertSpecificLabel ? "person" : Vertex.DEFAULT_LABEL, v2.label());
assertId(g1, lossyForId, v2, 2);
assertEquals(2, v2.keys().size());
assertEquals(assertSpecificLabel ? "software" : Vertex.DEFAULT_LABEL, v3.label());
assertId(g1, lossyForId, v3, 3);
assertEquals(2, v4.keys().size());
assertEquals(assertSpecificLabel ? "person" : Vertex.DEFAULT_LABEL, v4.label());
assertId(g1, lossyForId, v4, 4);
assertEquals(2, v5.keys().size());
assertEquals(assertSpecificLabel ? "software" : Vertex.DEFAULT_LABEL, v5.label());
assertId(g1, lossyForId, v5, 5);
assertEquals(2, v6.keys().size());
assertEquals(assertSpecificLabel ? "person" : Vertex.DEFAULT_LABEL, v6.label());
assertId(g1, lossyForId, v6, 6);

代码示例来源：origin: apache/tinkerpop

final ComputerResult result = graphProvider.getGraphComputer(graph).program(BulkDumperVertexProgram.build().create(graph)).submit().get();
result.graph().traversal().V().forEachRemaining(v -> {
  assertEquals(2, v.keys().size());
  assertTrue(v.keys().contains("name"));
  assertTrue(v.keys().contains("age") || v.keys().contains("lang"));
  assertEquals(1, IteratorUtils.count(v.values("name")));
  assertEquals(1, IteratorUtils.count(v.values("age", "lang")));

代码示例来源：origin: apache/tinkerpop

final ComputerResult result = graphProvider.getGraphComputer(graph).program(CloneVertexProgram.build().create(graph)).submit().get();
result.graph().traversal().V().forEachRemaining(v -> {
  assertEquals(2, v.keys().size());
  assertTrue(v.keys().contains("name"));
  assertTrue(v.keys().contains("age") || v.keys().contains("lang"));
  assertEquals(1, IteratorUtils.count(v.values("name")));
  assertEquals(1, IteratorUtils.count(v.values("age", "lang")));

代码示例来源：origin: org.apache.tinkerpop/tinkergraph-gremlin

@Override
public Set<String> keys() {
  if (null == this.properties) return Collections.emptySet();
  return TinkerHelper.inComputerMode((TinkerGraph) graph()) ?
      Vertex.super.keys() :
      this.properties.keySet();
}

代码示例来源：origin: HuygensING/timbuctoo

@Override
 public String get(Vertex vertex) {
  if (vertex.keys().contains(propertyName)) {
   String value = parser.parse(vertex.value(propertyName));

   if (value != null) {
    return String.format("%s%s%s", prefix, value, postfix);
   }
  }

  return null;
 }
}

代码示例来源：origin: io.shiftleft/tinkergraph-gremlin

@Override
public Set<String> keys() {
  if (null == this.properties) return Collections.emptySet();
  return TinkerHelper.inComputerMode((TinkerGraph) graph()) ?
      Vertex.super.keys() :
      this.properties.keySet();
}

代码示例来源：origin: org.apache.tinkerpop/gremlin-test

private static void vertexPropertyChecks(final Vertex v) {
  assertEquals(2, v.keys().size());
  assertTrue(v.keys().contains(VertexProgramR.PROPERTY_IN));
  assertTrue(v.keys().contains(VertexProgramR.PROPERTY_OUT));
  assertEquals(1, IteratorUtils.count(v.values(VertexProgramR.PROPERTY_IN)));
  assertEquals(1, IteratorUtils.count(v.values(VertexProgramR.PROPERTY_OUT)));
}

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