Java TitanManagement类代码示例

import com.thinkaurelius.titan.core.schema.TitanManagement; //导入依赖的package包/类
public static void createUniqueCompositeIndex(final Graph newGraph, final String indexName,
        final String[] propertyKeyNames, final Class<?> propertyKeyType) throws InterruptedException {

    Assert.notEmpty(propertyKeyNames);
    newGraph.tx().rollback(); // Never create new indexes while a transaction is active
    TitanManagement mgmt = ((TitanGraph) newGraph).openManagement();
    IndexBuilder indexBuilder = mgmt.buildIndex(indexName, Vertex.class);
    if (!mgmt.containsGraphIndex(indexName)) {
        for (String propertyKeyName : propertyKeyNames) {
            PropertyKey indexPropertyKey = getOrCreatePropertyKey(propertyKeyName, propertyKeyType, mgmt);
            indexBuilder.addKey(indexPropertyKey);
        }
        indexBuilder.unique().buildCompositeIndex();
    }
    mgmt.commit();
    // Wait for the index to become available
    ManagementSystem.awaitGraphIndexStatus((TitanGraph) newGraph, indexName).status(SchemaStatus.ENABLED).call();
}
 

import com.thinkaurelius.titan.core.schema.TitanManagement; //导入依赖的package包/类
@Override
public void loadGraphData(final Graph g, final LoadGraphWith loadGraphWith, final Class testClass, final String testName) {
    if (loadGraphWith != null) {
        this.createIndices((TitanGraph) g, loadGraphWith.value());
    } else {
        if (TransactionTest.class.equals(testClass) && testName.equalsIgnoreCase("shouldExecuteWithCompetingThreads")) {
            TitanManagement mgmt = ((TitanGraph) g).openManagement();
            mgmt.makePropertyKey("blah").dataType(Double.class).make();
            mgmt.makePropertyKey("bloop").dataType(Integer.class).make();
            mgmt.makePropertyKey("test").dataType(Object.class).make();
            mgmt.makeEdgeLabel("friend").make();
            mgmt.commit();
        }
    }
    super.loadGraphData(g, loadGraphWith, testClass, testName);
}
 

import com.thinkaurelius.titan.core.schema.TitanManagement; //导入依赖的package包/类
public void clopen(Object... settings) {
    config = getConfiguration();
    if (mgmt!=null && mgmt.isOpen()) mgmt.rollback();
    if (null != tx && tx.isOpen()) tx.commit();
    if (settings!=null && settings.length>0) {
        Map<TestConfigOption,Object> options = validateConfigOptions(settings);
        TitanManagement gconf = null;
        ModifiableConfiguration lconf = new ModifiableConfiguration(GraphDatabaseConfiguration.ROOT_NS,config, BasicConfiguration.Restriction.LOCAL);
        for (Map.Entry<TestConfigOption,Object> option : options.entrySet()) {
            if (option.getKey().option.isLocal()) {
                lconf.set(option.getKey().option,option.getValue(),option.getKey().umbrella);
            } else {
                if (gconf==null) gconf = graph.openManagement();
                gconf.set(ConfigElement.getPath(option.getKey().option,option.getKey().umbrella),option.getValue());
            }
        }
        if (gconf!=null) gconf.commit();
        lconf.close();
    }
    if (null != graph && graph.isOpen())
        graph.close();
    Preconditions.checkNotNull(config);
    open(config);
}
 

import com.thinkaurelius.titan.core.schema.TitanManagement; //导入依赖的package包/类
@Test
public void testValueOrdering() {
    StandardTitanGraph graph = (StandardTitanGraph) StorageSetup.getInMemoryGraph();
    TitanManagement mgmt = graph.openManagement();
    EdgeLabel father = mgmt.makeEdgeLabel("father").multiplicity(Multiplicity.MANY2ONE).make();
    for (int i=1;i<=5;i++) mgmt.makePropertyKey("key" + i).dataType(Integer.class).make();
    mgmt.commit();

    TitanVertex v1 = graph.addVertex(), v2 = graph.addVertex();
    TitanEdge e1 = v1.addEdge("father",v2);
    for (int i=1;i<=5;i++) e1.property("key"+i,i);

    graph.tx().commit();

    e1.remove();
    graph.tx().commit();

}
 

import com.thinkaurelius.titan.core.schema.TitanManagement; //导入依赖的package包/类
public SchemaContainer(TitanGraph graph) {
    vertexLabels = Maps.newHashMap();
    relationTypes = Maps.newHashMap();
    TitanManagement mgmt = graph.openManagement();

    try {
        for (VertexLabel vl : mgmt.getVertexLabels()) {
            VertexLabelDefinition vld = new VertexLabelDefinition(vl);
            vertexLabels.put(vld.getName(),vld);
        }

        for (EdgeLabel el : mgmt.getRelationTypes(EdgeLabel.class)) {
            EdgeLabelDefinition eld = new EdgeLabelDefinition(el);
            relationTypes.put(eld.getName(),eld);
        }
        for (PropertyKey pk : mgmt.getRelationTypes(PropertyKey.class)) {
            PropertyKeyDefinition pkd = new PropertyKeyDefinition(pk);
            relationTypes.put(pkd.getName(), pkd);
        }
    } finally {
        mgmt.rollback();
    }

}
 

import com.thinkaurelius.titan.core.schema.TitanManagement; //导入依赖的package包/类
public Titan1Graph() {
    //determine multi-properties once at startup
    TitanManagement mgmt = null;
    try {
        mgmt = Titan1GraphDatabase.getGraphInstance().openManagement();
        Iterable<PropertyKey> keys = mgmt.getRelationTypes(PropertyKey.class);
        multiProperties = new HashSet<>();
        for (PropertyKey key : keys) {
            if (key.cardinality() != Cardinality.SINGLE) {
                multiProperties.add(key.name());
            }
        }
    } finally {
        if (mgmt != null) {
            mgmt.rollback();
        }
    }
}
 

import com.thinkaurelius.titan.core.schema.TitanManagement; //导入依赖的package包/类
public Titan0Graph() {
    //determine multi-properties once at startup
    TitanManagement mgmt = null;
    try {
        mgmt = Titan0GraphDatabase.getGraphInstance().getManagementSystem();
        Iterable<PropertyKey> keys = mgmt.getRelationTypes(PropertyKey.class);
        multiProperties = Collections.synchronizedSet(new HashSet<String>());
        for(PropertyKey key : keys) {
            if (key.getCardinality() != Cardinality.SINGLE) {
                multiProperties.add(key.getName());
            }
        }
    } finally {
        if (mgmt != null) {
            mgmt.rollback();
        }
    }
}
 

import com.thinkaurelius.titan.core.schema.TitanManagement; //导入依赖的package包/类
static void validateIndexBackend(Configuration config) {
    String configuredIndexBackend = config.getString(INDEX_BACKEND_CONF);
    TitanManagement managementSystem = null;

    try {
        managementSystem = getGraphInstance().getManagementSystem();
        String currentIndexBackend = managementSystem.get(INDEX_BACKEND_CONF);

        if (!equals(configuredIndexBackend, currentIndexBackend)) {
            throw new RuntimeException("Configured Index Backend " + configuredIndexBackend
                    + " differs from earlier configured Index Backend " + currentIndexBackend + ". Aborting!");
        }

    } finally {
        if (managementSystem != null) {
            managementSystem.commit();
        }
    }


}
 

import com.thinkaurelius.titan.core.schema.TitanManagement; //导入依赖的package包/类
@Override
public void testCompetingThreads() {
    TitanBlueprintsGraph graph = (TitanBlueprintsGraph) graphTest.generateGraph();
    //Need to define types before hand to avoid deadlock in transactions

    TitanManagement mgmt = graph.getManagementSystem();
    mgmt.makeEdgeLabel("friend").make();
    mgmt.makePropertyKey("test").dataType(Long.class).make();
    mgmt.makePropertyKey("blah").dataType(Float.class).make();
    mgmt.makePropertyKey("bloop").dataType(Integer.class).make();


    mgmt.commit();
    graph.shutdown();
    super.testCompetingThreads();
}
 

import com.thinkaurelius.titan.core.schema.TitanManagement; //导入依赖的package包/类
@Test
public void testValueOrdering() {
    StandardTitanGraph graph = (StandardTitanGraph) StorageSetup.getInMemoryGraph();
    TitanManagement mgmt = graph.getManagementSystem();
    EdgeLabel father = mgmt.makeEdgeLabel("father").multiplicity(Multiplicity.MANY2ONE).make();
    for (int i=1;i<=5;i++) mgmt.makePropertyKey("key" + i).dataType(Integer.class).make();
    mgmt.commit();

    TitanVertex v1 = graph.addVertex(null), v2 = graph.addVertex(null);
    TitanEdge e1 = v1.addEdge("father",v2);
    for (int i=1;i<=5;i++) e1.setProperty("key"+i,i);

    graph.commit();

    e1.remove();
    graph.commit();

}
 

import com.thinkaurelius.titan.core.schema.TitanManagement; //导入依赖的package包/类
@Test
    public void testUnidirectionEdges() throws Exception {
        // Declare schema in Titan
        TitanManagement mgmt = g.getManagementSystem();
        mgmt.makeEdgeLabel("father").unidirected().make();
        mgmt.commit();

//        // Reload schema from Titan into Faunus's Type Manager
//        FaunusTypeManager.getTypeManager(null).clear();
//        SchemaProvider titanSchemaProvider = new SchemaContainer(g);
//        FaunusTypeManager typeManager = FaunusTypeManager.getTypeManager(null); //argument is ignored
//        typeManager.setSchemaProvider(titanSchemaProvider);

        bulkLoadGraphOfTheGods(f1);
        clopen();
        assertEquals(12, new GremlinPipeline(g).V().count());
        assertEquals(17, new GremlinPipeline(g).E().count());
        assertEquals(new GremlinPipeline(g).V("name", "hercules").out("father").count(), 1);
        assertEquals(new GremlinPipeline(g).V("name", "jupiter").in("father").count(), 0);

//        // Reset/clear types to avoid interference with subsequent tests
//        typeManager.clear();
//        typeManager.setSchemaProvider(DefaultSchemaProvider.INSTANCE);
    }
 

import com.thinkaurelius.titan.core.schema.TitanManagement; //导入依赖的package包/类
@Test
public void testCanReadListValuedProperty() throws Exception {
    TitanGraph tg = TitanFactory.open(getTitanConfiguration());

    TitanManagement mgmt = tg.getManagementSystem();
    mgmt.makePropertyKey("email").dataType(String.class).cardinality(com.thinkaurelius.titan.core.Cardinality.LIST).make();
    mgmt.commit();
    tg.commit();

    TitanVertex v = tg.addVertex();
    v.addProperty("email", "one");
    v.addProperty("email", "two");
    tg.commit();

    Configuration c = new Configuration();
    c.set("titan.hadoop.input.format", "com.thinkaurelius.titan.hadoop.formats.cassandra.TitanCassandraInputFormat");
    c.set("titan.hadoop.input.conf.storage.backend", "cassandrathrift");
    c.set("titan.hadoop.input.conf.storage.cassandra.keyspace", KEYSPACE_NAME);
    c.set("titan.hadoop.sideeffect.format", "org.apache.hadoop.mapreduce.lib.output.TextOutputFormat");
    c.set("titan.hadoop.output.format", "com.thinkaurelius.titan.hadoop.formats.graphson.GraphSONOutputFormat");
    c.set("cassandra.input.partitioner.class", "org.apache.cassandra.dht.Murmur3Partitioner");

    HadoopGraph hg = new HadoopGraph(c);

    assertEquals(0, new HadoopPipeline(hg).V().map().submit());
}
 

import com.thinkaurelius.titan.core.schema.TitanManagement; //导入依赖的package包/类
public SchemaContainer(TitanGraph graph) {
    vertexLabels = Maps.newHashMap();
    relationTypes = Maps.newHashMap();
    TitanManagement mgmt = graph.getManagementSystem();

    try {
        for (VertexLabel vl : mgmt.getVertexLabels()) {
            VertexLabelDefinition vld = new VertexLabelDefinition(vl);
            vertexLabels.put(vld.getName(),vld);
        }

        for (EdgeLabel el : mgmt.getRelationTypes(EdgeLabel.class)) {
            EdgeLabelDefinition eld = new EdgeLabelDefinition(el);
            relationTypes.put(eld.getName(),eld);
        }
        for (PropertyKey pk : mgmt.getRelationTypes(PropertyKey.class)) {
            PropertyKeyDefinition pkd = new PropertyKeyDefinition(pk);
            relationTypes.put(pkd.getName(), pkd);
        }
    } finally {
        mgmt.rollback();
    }

}
 

import com.thinkaurelius.titan.core.schema.TitanManagement; //导入依赖的package包/类
protected void prepareIndices(String... keys)
  {
    // https://groups.google.com/forum/#!topic/aureliusgraphs/lGA3Ye4RI5E
    // transactional scope difference between management and graph
    if (Tools.isSet(keys))
    {
      TitanManagement m = G.getManagementSystem();

      for (String key : keys)
        prepareCompositeIndex(m, key);
//      makeStrKeys(m, ACC,NAME,ORGANISM,SUBCELOC,LABEL,DB,TYPE,PROTEIN,GENE,TERM,PATHWAY,MOLTYPE,EVIDENCE,ENTRY,PROTID);
//      m.buildIndex("byAcc",  Vertex.class).addKey(getStrKey(ACC) ).buildCompositeIndex();
//      m.buildIndex("byName", Vertex.class).addKey(getStrKey(NAME)).buildCompositeIndex();
      m.commit();
    }
  }
 

import com.thinkaurelius.titan.core.schema.TitanManagement; //导入依赖的package包/类
public static void createIndex(final Graph newGraph, final String indexName, final String indexKey)
        throws InterruptedException {
    newGraph.tx().rollback(); // Never create new indexes while a transaction is active
    TitanManagement mgmt = ((TitanGraph) newGraph).openManagement();
    if (!mgmt.containsGraphIndex(indexName)) {
        PropertyKey indexPropertyKey = mgmt.makePropertyKey(indexKey).dataType(String.class).make();
        mgmt.buildIndex(indexName, Vertex.class).addKey(indexPropertyKey).buildCompositeIndex();
    }
    mgmt.commit();
    // Wait for the index to become available
    ManagementSystem.awaitGraphIndexStatus((TitanGraph) newGraph, indexName).status(SchemaStatus.ENABLED).call();
}