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

Example 6 with JanusGraphManager

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

the class ConfiguredGraphFactory method close.

/**
 * Removes the graph corresponding to the supplied graphName
 * from the {@link JanusGraphManager} {@link Map<String, Graph>} graph reference tracker and
 * returns the corresponding Graph, or null if it doesn't exist.
 *
 * @param graphName Graph
 * @return JanusGraph
 */
public static JanusGraph close(String graphName) throws Exception {
    final JanusGraphManager jgm = JanusGraphManagerUtility.getInstance();
    Preconditions.checkState(jgm != null, JANUS_GRAPH_MANAGER_EXPECTED_STATE_MSG);
    final Graph graph = jgm.removeGraph(graphName);
    if (null != graph)
        graph.close();
    return (JanusGraph) graph;
}

Example 7 with JanusGraphManager

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

the class JanusGraphNioChannelizer 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 8 with JanusGraphManager

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

the class JanusGraphWsAndHttpChannelizer 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 9 with JanusGraphManager

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

the class JanusGraphHttpChannelizer 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 10 with JanusGraphManager

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

the class JanusGraphFactory method drop.

/**
 * Drop graph database, deleting all data in storage and indexing backends. Graph can be open or closed (will be
 * closed as part of the drop operation). The graph is also removed from the {@link JanusGraphManager}
 * graph reference tracker, if there.
 *
 * <p><b>WARNING: This is an irreversible operation that will delete all graph and index data.</b></p>
 * @param graph JanusGraph graph database. Can be open or closed.
 * @throws BackendException If an error occurs during deletion
 */
public static void drop(JanusGraph graph) throws BackendException {
    Preconditions.checkNotNull(graph);
    Preconditions.checkArgument(graph instanceof StandardJanusGraph, "Invalid graph instance detected: %s", graph.getClass());
    final StandardJanusGraph g = (StandardJanusGraph) graph;
    final JanusGraphManager jgm = JanusGraphManagerUtility.getInstance();
    if (jgm != null) {
        jgm.removeGraph(g.getGraphName());
    }
    if (graph.isOpen()) {
        graph.close();
    }
    final GraphDatabaseConfiguration config = g.getConfiguration();
    final Backend backend = config.getBackend();
    try {
        backend.clearStorage();
    } finally {
        IOUtils.closeQuietly(backend);
    }
}