Java Graph.addVertex方法代码示例

import com.tinkerpop.blueprints.Graph; //导入方法依赖的package包/类
/**
 * Helper method to find an existing vertex. First the local cache is checked, then the in-memory (uncommitted)
 * graph object, the finally the database.
 *
 * @param g
 * @param vertexName
 * @return
 */
private Vertex findOrCreateVertex(final Graph g, final String vertexName) {
    String resolvedVertexName = classmap.resolveVertex(vertexName);
    boolean usingClasses = !vertexName.equals(resolvedVertexName);

    Vertex vertex = (Vertex) vertexCache.get(vertexName);
    if (vertex == null) {
        // FIXME Properly query for vertices in DB if getByID misses
        if (!usingClasses) {
            vertex = g.getVertex(resolvedVertexName);
        }

        if (vertex == null) {
            vertex = g.addVertex(resolvedVertexName);
            if (usingClasses) {
                vertex.setProperty(GraphSectionImpl.ELEMENT_NAME_PROPERTY, vertexName);
            }
        }
    }

    vertexProps.updateVertexProperties(vertexName, vertex);
    vertexCache.put(vertexName, vertex);
    return vertex;
}
 

import com.tinkerpop.blueprints.Graph; //导入方法依赖的package包/类
@Test
public void testPreloadAllProperties() {
  AccumuloGraphConfiguration cfg =
      AccumuloGraphTestUtils.generateGraphConfig("preloadAllProperties");
  cfg.setPropertyCacheTimeout(null, TIMEOUT);
  cfg.setPreloadAllProperties(true);

  Graph graph = open(cfg);

  AccumuloVertex v = (AccumuloVertex) graph.addVertex("V");
  v.setProperty(NON_CACHED, true);
  v.setProperty(CACHED, true);

  v = (AccumuloVertex) graph.getVertex("V");
  assertEquals(true, v.getPropertyInMemory(NON_CACHED));
  assertEquals(true, v.getPropertyInMemory(CACHED));

  graph.shutdown();
}
 

import com.tinkerpop.blueprints.Graph; //导入方法依赖的package包/类
@Test
public void testPreloadSomeProperties() {
  AccumuloGraphConfiguration cfg =
      AccumuloGraphTestUtils.generateGraphConfig("preloadSomeProperties");
  cfg.setPropertyCacheTimeout(null, TIMEOUT);
  cfg.setPreloadedProperties(new String[]{CACHED});

  Graph graph = open(cfg);

  AccumuloVertex v = (AccumuloVertex) graph.addVertex("V");
  v.setProperty(NON_CACHED, true);
  v.setProperty(CACHED, true);

  v = (AccumuloVertex) graph.getVertex("V");
  assertEquals(null, v.getPropertyInMemory(NON_CACHED));
  assertEquals(true, v.getPropertyInMemory(CACHED));

  graph.shutdown();
}
 

import com.tinkerpop.blueprints.Graph; //导入方法依赖的package包/类
@Test
public void testVertexOutputFormatMap() throws Exception {
  final String INSTANCE_NAME = "_mapreduce_instance2";
  final String TEST_TABLE_1 = "_mapreduce_table_2";

  if (!System.getProperty("os.name").startsWith("Windows")) {
    Graph g = GraphFactory.open(new AccumuloGraphConfiguration().setInstanceName(INSTANCE_NAME).setUser("root").setPassword("".getBytes())
        .setGraphName(TEST_TABLE_1).setInstanceType(InstanceType.Mock).setCreate(true).getConfiguration());
    for (int i = 0; i < 100; i++) {
      g.addVertex(i + "");
    }
    assertEquals(0, MRTester.main(new String[] {}));
    assertNull(e1);
    assertNull(e2);
    assertEquals(g.getVertex("1").getProperty("NAME"), "BANANA1");
  }
}
 

import com.tinkerpop.blueprints.Graph; //导入方法依赖的package包/类
@Test
public void testVertexInputMap() throws Exception {
  final String INSTANCE_NAME = "_mapreduce_instance";
  final String TEST_TABLE_NAME = "_mapreduce_table_vertexInputMap";

  if (!System.getProperty("os.name").startsWith("Windows")) {
    Graph g = GraphFactory.open(new AccumuloGraphConfiguration().setInstanceName(INSTANCE_NAME)
        .setUser("root").setPassword("".getBytes())
        .setGraphName(TEST_TABLE_NAME).setInstanceType(InstanceType.Mock)
        .setCreate(true).getConfiguration());

    for (int i = 0; i < 100; i++) {
      g.addVertex(i + "");
    }

    assertEquals(0, MRTester.main(new String[]{"root", "",
        TEST_TABLE_NAME, INSTANCE_NAME, "false"}));
    assertNull(e1);
    assertNull(e2);

    g.shutdown();
  }
}
 

import com.tinkerpop.blueprints.Graph; //导入方法依赖的package包/类
@Test
public void testEdgeInputMap() throws Exception {
  final String INSTANCE_NAME = "_mapreduce_instance";
  final String TEST_TABLE_NAME = "_mapreduce_table_edgeInputMap";

  if (!System.getProperty("os.name").startsWith("Windows")) {
    Graph g = GraphFactory.open(new AccumuloGraphConfiguration().setInstanceName(INSTANCE_NAME)
        .setUser("root").setPassword("".getBytes())
        .setGraphName(TEST_TABLE_NAME).setInstanceType(InstanceType.Mock)
        .setAutoFlush(true).setCreate(true).getConfiguration());

    for (int i = 0; i < 100; i++) {
      Vertex v1 = g.addVertex(i+"");
      Vertex v2 = g.addVertex(i+"a");
      g.addEdge(null, v1, v2, "knows");
    }

    assertEquals(0, MRTester.main(new String[]{"root", "",
        TEST_TABLE_NAME, INSTANCE_NAME, "true"}));
    assertNull(e1);
    assertNull(e2);

    g.shutdown();
  }
}
 

import com.tinkerpop.blueprints.Graph; //导入方法依赖的package包/类
@Test
public void testElementCacheSize() throws Exception {
  AccumuloGraphConfiguration cfg = AccumuloGraphTestUtils
      .generateGraphConfig("elementCacheSize");
  Graph graph = GraphFactory.open(cfg.getConfiguration());

  Vertex[] verts = new Vertex[10];
  for (int i = 0; i < verts.length; i++) {
    verts[i] = graph.addVertex(i);
  }

  Edge[] edges = new Edge[9];
  for (int i = 0; i < edges.length; i++) {
    edges[i] = graph.addEdge(null,
        verts[0], verts[i+1], "edge");
  }

  sizeTests(verts);
  sizeTests(edges);

  graph.shutdown();
}
 

import com.tinkerpop.blueprints.Graph; //导入方法依赖的package包/类
public boolean createUser( UserSecurity user ) {
	Graph graph = (Graph) connection.get();
	logger.debug("createUser: " + user.getEmail() );
	
	try {
		// check if user already registered
		try {
			if( getUserIdByEmail( user.getEmail() ) != null ) {
				throw new UserExistingException( user.getEmail() );
			}
		}
		// continue if no user found
		catch( UserNotFoundException e) {}
		// create user vertex
		Vertex v = graph.addVertex(null);
		
		// type user
		v.setProperty( GremlinDAOSpec.UNIVERSAL_PROPERTY_TYPE, GremlinDAOSpec.USER_CLASS );
		v.setProperty( GremlinDAOSpec.USER_PROPERTY_FIRST_NAME, user.getFirstname() );
		v.setProperty( GremlinDAOSpec.USER_PROPERTY_LAST_NAME, user.getLastname() );
		v.setProperty( GremlinDAOSpec.USER_PROPERTY_EMAIL, user.getEmail() );
		v.setProperty( GremlinDAOSpec.USER_PROPERTY_PASSWORD, user.getPassword() );
		v.setProperty( GremlinDAOSpec.USER_PROPERTY_ROLE, user.getRole() );
		
		return true;			
	}
	finally {
		graph.shutdown();
	}
}
 

import com.tinkerpop.blueprints.Graph; //导入方法依赖的package包/类
public static Vertex addNode(Graph graph, Map<String, String> properties)
{
	Vertex newVertex = graph.addVertex(0);

	for (Entry<String, String> entrySet : properties.entrySet())
	{
		newVertex.setProperty(entrySet.getKey(), entrySet.getValue());
	}
	return newVertex;
}
 

import com.tinkerpop.blueprints.Graph; //导入方法依赖的package包/类
@Override
public void invoke(Graph graph) {
  Vertex association = graph.addVertex(9);
  association.setProperty(CommonProperties.IRI, "http://x.org/a_assn");
  association.setProperty(NodeProperties.LABEL, "assn");
  association.addEdge("http://purl.org/oban/association_has_subject", graph.getVertex(3));
  association.addEdge("http://purl.org/oban/association_has_object", graph.getVertex(4));
  // Add evidence
  Vertex evidence1 = graph.addVertex(11);
  evidence1.setProperty(CommonProperties.IRI, "http://x.org/a_evidence");
  evidence1.setProperty(NodeProperties.LABEL, "ev1");
  association.addEdge("http://purl.obolibrary.org/obo/RO_0002558", evidence1);
}
 

import com.tinkerpop.blueprints.Graph; //导入方法依赖的package包/类
public static Graph createGraph( EngineMetaInterface meta ) {
  if ( meta == null ) {
    return null;
  }
  Graph g = new TinkerGraph();
  if ( meta instanceof TransMeta ) {
    TransMeta transMeta = (TransMeta) meta;

    // Add nodes
    List<StepMeta> steps = transMeta.getSteps();
    if ( steps != null ) {
      for ( StepMeta step : steps ) {
        Vertex v = g.addVertex( step.getName() );
        v.setProperty( PROPERTY_NAME, step.getName() );
        v.setProperty( PROPERTY_PLUGINID, step.getStepID() );
        Point location = step.getLocation();
        v.setProperty( PROPERTY_X, location.x );
        v.setProperty( PROPERTY_Y, location.y );
        v.setProperty( PROPERTY_REF, step );
      }
    }
    int numHops = transMeta.nrTransHops();
    for ( int i = 0; i < numHops; i++ ) {
      TransHopMeta hop = transMeta.getTransHop( i );
      StepMeta fromStep = hop.getFromStep();
      StepMeta toStep = hop.getToStep();
      Vertex fromV = g.getVertex( fromStep.getName() );
      Vertex toV = g.getVertex( toStep.getName() );
      g.addEdge( null, fromV, toV, EDGE_HOPSTO );
    }
  }
  return g;
}
 

import com.tinkerpop.blueprints.Graph; //导入方法依赖的package包/类
/**
 * Construct a complete lattice assigned to a designated graph (backend).
 * @param graph assignment
 * @param top element
 */
protected CompleteLattice(final Graph graph, PartiallyOrdered top) {
    checkNotNull(graph, top);
    this.graph = graph;
    order = 0;
    color = 0;
    
    this.top = graph.addVertex(null);
    this.top.setProperty(LABEL, top);
    this.top.setProperty(COLOR, color);
    bottom = this.top;
    size = 1;
}
 

import com.tinkerpop.blueprints.Graph; //导入方法依赖的package包/类
@Test
public void testNonStringIds() throws Exception {
  Graph graph = AccumuloGraphTestUtils.makeGraph("nonStringIds");

  Object[] ids = new Object[] {
      10, 20, 30L, 40L,
      50.0f, 60.0f, 70.0d, 80.0d,
      (byte) 'a', (byte) 'b', 'c', 'd',
      "str1", "str2",
      new GenericObject("str3"), new GenericObject("str4"),
  };

  Object[] edgeIds = new Object[] {
      100, 200, 300L, 400L,
      500.0f, 600.0f, 700.0d, 800.0d,
      (byte) 'e', (byte) 'f', 'g', 'h',
      "str5", "str6",
      new GenericObject("str7"), new GenericObject("str8"),
  };

  for (int i = 0; i < ids.length; i++) {
    assertNull(graph.getVertex(ids[i]));
    Vertex v = graph.addVertex(ids[i]);
    assertNotNull(v);
    assertNotNull(graph.getVertex(ids[i]));
  }
  assertEquals(ids.length, count(graph.getVertices()));

  for (int i = 1; i < edgeIds.length; i++) {
    assertNull(graph.getEdge(edgeIds[i-1]));
    Edge e = graph.addEdge(edgeIds[i-1],
        graph.getVertex(ids[i-1]),
        graph.getVertex(ids[i]), "label");
    assertNotNull(e);
    assertNotNull(graph.getEdge(edgeIds[i-1]));
  }
  assertEquals(edgeIds.length-1, count(graph.getEdges()));

  graph.shutdown();
}
 

import com.tinkerpop.blueprints.Graph; //导入方法依赖的package包/类
@Test
public void testSkipExistenceChecks() throws Exception {
  AccumuloGraphConfiguration cfg =
      AccumuloGraphTestUtils.generateGraphConfig("skipExistenceChecks");
  cfg.setSkipExistenceChecks(true);
  Graph graph = makeGraph(cfg);

  String id;

  id = "doubleAdd";
  assertNotNull(graph.addVertex(id));
  assertNotNull(graph.addVertex(id));
  Vertex vAdd = graph.getVertex(id);
  assertNotNull(vAdd);
  graph.removeVertex(vAdd);
  assertNotNull(graph.getVertex(id));


  id = "doubleRemove";
  Vertex vRemove = graph.addVertex(id);
  assertNotNull(vRemove);
  graph.removeVertex(vRemove);
  assertNotNull(graph.getVertex(id));
  // MDL 24 Dec 2014:  removeVertex still does checks.
  //graph.removeVertex(vRemove);
  //assertNotNull(graph.getVertex(id));


  id = "notExist";
  assertNotNull(graph.getVertex(id));

  graph.shutdown();
}
 

import com.tinkerpop.blueprints.Graph; //导入方法依赖的package包/类
@Test
public void testElementCacheTimeout() throws Exception {
  AccumuloGraphConfiguration cfg = AccumuloGraphTestUtils
      .generateGraphConfig("elementCacheTimeout");
  Graph graph = GraphFactory.open(cfg.getConfiguration());

  ElementCache<Element> cache =
      new ElementCache<Element>(10, 1000);

  Vertex v1 = graph.addVertex(1);
  Vertex v2 = graph.addVertex(2);
  assertNull(cache.retrieve(1));
  assertNull(cache.retrieve(2));

  cache.cache(v1);
  assertNotNull(cache.retrieve(v1.getId()));
  Thread.sleep(1500);
  assertNull(cache.retrieve(v1.getId()));

  Edge e = graph.addEdge(null, v1, v2, "label");
  assertNull(cache.retrieve(e.getId()));

  cache.cache(e);
  assertNotNull(cache.retrieve(e.getId()));
  Thread.sleep(1500);
  assertNull(cache.retrieve(e.getId()));

  graph.shutdown();
}