Examples with JanusGraphManager org.janusgraph.graphdb.management.JanusGraphManager used on opensource projects

Example 1 with JanusGraphManager

use of org.janusgraph.graphdb.management.JanusGraphManager in project janusgraph by JanusGraph.

the class JanusGraphWebSocketChannelizer method init.

@Override
public void init(final ServerGremlinExecutor serverGremlinExecutor) {
    this.serverGremlinExecutor = serverGremlinExecutor;
    super.init(serverGremlinExecutor);
    final GraphManager graphManager = serverGremlinExecutor.getGraphManager();
    Preconditions.checkArgument(graphManager instanceof JanusGraphManager, "Must use JanusGraphManager with a JanusGraphChannelizer.");
    ((JanusGraphManager) graphManager).configureGremlinExecutor(serverGremlinExecutor.getGremlinExecutor());
}

Example 2 with JanusGraphManager

use of org.janusgraph.graphdb.management.JanusGraphManager in project janusgraph by JanusGraph.

the class JanusGraphFactory method close.

/**
 * Removes {@link Graph} from {@link JanusGraphManager} graph reference tracker, if exists
 * there.
 *
 * @param graph Graph
 */
public static void close(Graph graph) throws Exception {
    final JanusGraphManager jgm = JanusGraphManagerUtility.getInstance();
    if (jgm != null) {
        jgm.removeGraph(((StandardJanusGraph) graph).getGraphName());
    }
    graph.close();
}

Example 3 with JanusGraphManager

use of org.janusgraph.graphdb.management.JanusGraphManager in project janusgraph by JanusGraph.

the class JanusGraphFactory method open.

/**
 * Opens a {@link JanusGraph} database configured according to the provided configuration.
 * This method shouldn't be called by end users; it is used by internal server processes to
 * open graphs defined at server start that do not include the graphname property.
 *
 * @param configuration Configuration for the graph database
 * @param backupName Backup name for graph
 * @return JanusGraph graph database
 */
public static JanusGraph open(ReadConfiguration configuration, String backupName) {
    final ModifiableConfiguration config = new ModifiableConfiguration(ROOT_NS, (WriteConfiguration) configuration, BasicConfiguration.Restriction.NONE);
    final String graphName = config.has(GRAPH_NAME) ? config.get(GRAPH_NAME) : backupName;
    final JanusGraphManager jgm = JanusGraphManagerUtility.getInstance();
    if (null != graphName) {
        Preconditions.checkNotNull(jgm, JANUS_GRAPH_MANAGER_EXPECTED_STATE_MSG);
        return (JanusGraph) jgm.openGraph(graphName, gName -> new StandardJanusGraph(new GraphDatabaseConfigurationBuilder().build(configuration)));
    } else {
        if (jgm != null) {
            log.warn("You should supply \"graph.graphname\" in your .properties file configuration if you are opening " + "a graph that has not already been opened at server start, i.e. it was " + "defined in your YAML file. This will ensure the graph is tracked by the JanusGraphManager, " + "which will enable autocommit and rollback functionality upon all gremlin script executions. " + "Note that JanusGraphFactory#open(String === shortcut notation) does not support consuming the property " + "\"graph.graphname\" so these graphs should be accessed dynamically by supplying a .properties file here " + "or by using the ConfiguredGraphFactory.");
        }
        return new StandardJanusGraph(new GraphDatabaseConfigurationBuilder().build(configuration));
    }
}

Example 4 with JanusGraphManager

use of org.janusgraph.graphdb.management.JanusGraphManager in project janusgraph by JanusGraph.

the class JanusGraphFactory method getGraphNames.

/**
 *  Return a Set of graph names stored in the {@link JanusGraphManager}
 *
 *  @return Set<String>
 */
public static Set<String> getGraphNames() {
    final JanusGraphManager jgm = JanusGraphManagerUtility.getInstance();
    Preconditions.checkNotNull(jgm, JANUS_GRAPH_MANAGER_EXPECTED_STATE_MSG);
    return jgm.getGraphNames();
}

Example 5 with JanusGraphManager

use of org.janusgraph.graphdb.management.JanusGraphManager in project janusgraph by JanusGraph.

the class ConfiguredGraphFactory method create.

/**
 * Creates a {@link JanusGraph} configuration stored in the {@link ConfigurationManagementGraph}
 * graph and a {@link JanusGraph} graph reference according to the single
 * Template Configuration  previously created by the {@link ConfigurationManagementGraph} API;
 * A configuration for this graph must not already exist, and a Template Configuration must
 * exist. If the Template Configuration does not include its
 * backend's respective keyspace/table/storage_directory parameter, we set the keyspace/table
 * to the supplied graphName or we append the graphName to the supplied
 * storage_root parameter.
 *
 * @param graphName
 *
 * @return JanusGraph
 */
public static synchronized JanusGraph create(final String graphName) {
    final ConfigurationManagementGraph configManagementGraph = getConfigGraphManagementInstance();
    final Map<String, Object> graphConfigMap = configManagementGraph.getConfiguration(graphName);
    Preconditions.checkState(null == graphConfigMap, String.format("Configuration for graph %s already exists.", graphName));
    final Map<String, Object> templateConfigMap = configManagementGraph.getTemplateConfiguration();
    Preconditions.checkNotNull(templateConfigMap, "Please create a template Configuration using the ConfigurationManagementGraph#createTemplateConfiguration API.");
    templateConfigMap.put(ConfigurationManagementGraph.PROPERTY_GRAPH_NAME, graphName);
    templateConfigMap.put(ConfigurationManagementGraph.PROPERTY_CREATED_USING_TEMPLATE, true);
    final JanusGraphManager jgm = JanusGraphManagerUtility.getInstance();
    Preconditions.checkNotNull(jgm, JANUS_GRAPH_MANAGER_EXPECTED_STATE_MSG);
    final CommonsConfiguration config = new CommonsConfiguration(ConfigurationUtil.loadMapConfiguration(templateConfigMap));
    final JanusGraph g = (JanusGraph) jgm.openGraph(graphName, (String gName) -> new StandardJanusGraph(new GraphDatabaseConfigurationBuilder().build(config)));
    configManagementGraph.createConfiguration(new MapConfiguration(templateConfigMap));
    return g;
}