public DriverRemoteConnection(final Configuration conf) {
if (conf.containsKey(GREMLIN_REMOTE_GRAPH_DRIVER_CLUSTERFILE)
&& conf.containsKey("clusterConfiguration"))
throw new IllegalStateException(
String.format(
"A configuration should not contain both '%s' and 'clusterConfiguration'",
GREMLIN_REMOTE_GRAPH_DRIVER_CLUSTERFILE));
connectionGraphName = conf.getString(GREMLIN_REMOTE_GRAPH_DRIVER_GRAPHNAME, DEFAULT_GRAPH);
try {
final Cluster cluster;
if (!conf.containsKey(GREMLIN_REMOTE_GRAPH_DRIVER_CLUSTERFILE)
&& !conf.containsKey("clusterConfiguration")) cluster = Cluster.open();
else
cluster =
conf.containsKey(GREMLIN_REMOTE_GRAPH_DRIVER_CLUSTERFILE)
? Cluster.open(conf.getString(GREMLIN_REMOTE_GRAPH_DRIVER_CLUSTERFILE))
: Cluster.open(conf.subset("clusterConfiguration"));
client =
cluster
.connect(Client.Settings.build().unrollTraversers(false).create())
.alias(connectionGraphName);
} catch (Exception ex) {
throw new IllegalStateException(ex);
}
tryCloseCluster = true;
this.conf = Optional.of(conf);
}
private DriverRemoteConnection(
final Cluster cluster, final boolean tryCloseCluster, final String connectionGraphName) {
client =
cluster
.connect(Client.Settings.build().unrollTraversers(false).create())
.alias(connectionGraphName);
this.connectionGraphName = connectionGraphName;
this.tryCloseCluster = tryCloseCluster;
}
/**
* This constructor is largely just for unit testing purposes and should not typically be used
* externally.
*/
DriverRemoteConnection(final Cluster cluster, final Configuration conf) {
connectionGraphName = conf.getString(GREMLIN_REMOTE_GRAPH_DRIVER_GRAPHNAME, DEFAULT_GRAPH);
client =
cluster
.connect(Client.Settings.build().unrollTraversers(false).create())
.alias(connectionGraphName);
tryCloseCluster = false;
this.conf = Optional.of(conf);
}