/**
* Create a new RDF store using the provided Blueprints graph. Additionally, create edge indices
* for the provided triple patterns (potentially speeding up certain queries, while increasing
* storage overhead).
*
* @param graph the storage layer. If the provided graph implements TransactionalGraph and is in
* manual transaction mode, then this Sail will also be transactional. Any vertices and edges
* in the graph should have been previously created with GraphSail.
* @param indexedPatterns a comma-delimited list of triple patterns for index-based statement
* matching. Only p,c are required, while the default patterns are p,c,pc.
*/
public GraphSail(final T graph, final String indexedPatterns) {
// if (graph instanceof TransactionalGraph)
// ((TransactionalGraph) graph).setTransactionMode(TransactionalGraph.Mode.AUTOMATIC);
// printGraphInfo(graph);
store.sail = this;
store.graph = graph;
createIndices(graph);
store.manualTransactions = store.graph instanceof TransactionalGraph;
// && 0 == ((TransactionalGraph) store.graph).getMaxBufferSize();
store.namespaces = store.getReferenceVertex();
if (null == store.namespaces) {
if (store.manualTransactions) {
((TransactionalGraph) graph).startTransaction();
}
try {
// FIXME: with FAKE_VERTEX_IDS, an extra "namespace" called "value" is present. Perhaps
// namespaces
// should be given individual nodes, rather than being encapsulated in properties of the
// namespaces node.
store.namespaces = store.addVertex(NAMESPACES_VERTEX_ID);
} finally {
if (store.manualTransactions) {
((TransactionalGraph) graph).stopTransaction(TransactionalGraph.Conclusion.SUCCESS);
}
}
}
store.matchers[0] = new TrivialMatcher(graph);
parseTripleIndices(indexedPatterns);
assignUnassignedTriplePatterns();
}
public static void load(final Graph graph) {
// vertices
final Vertex saturn = graph.addVertex(null);
saturn.setProperty("name", "saturn");
saturn.setProperty("age", 10000);
saturn.setProperty("type", "titan");
saturn.setProperty(TYPE_RESOLUTION_KEY, God.class.getName());
final Vertex sky = graph.addVertex(null);
ElementHelper.setProperties(
sky, "name", "sky", "type", "location", "other", "more useless info");
final Vertex sea = graph.addVertex(null);
ElementHelper.setProperties(sea, "name", "sea", "type", "location");
final Vertex jupiter = graph.addVertex(null);
ElementHelper.setProperties(
jupiter,
"name",
"jupiter",
"age",
5000,
"type",
"god",
TYPE_RESOLUTION_KEY,
God.class.getName());
final Vertex neptune = graph.addVertex(null);
ElementHelper.setProperties(
neptune,
"name",
"neptune",
"age",
4500,
"type",
"god",
TYPE_RESOLUTION_KEY,
God.class.getName());
final Vertex hercules = graph.addVertex(null);
ElementHelper.setProperties(
hercules,
"name",
"hercules",
"age",
30,
"type",
"demigod",
TYPE_RESOLUTION_KEY,
GodExtended.class.getName());
final Vertex alcmene = graph.addVertex(null);
ElementHelper.setProperties(
alcmene,
"name",
"alcmene",
"age",
45,
"type",
"human",
TYPE_RESOLUTION_KEY,
God.class.getName());
final Vertex pluto = graph.addVertex(null);
ElementHelper.setProperties(
pluto,
"name",
"pluto",
"age",
4000,
"type",
"god",
TYPE_RESOLUTION_KEY,
God.class.getName());
final Vertex nemean = graph.addVertex(null);
ElementHelper.setProperties(
nemean, "name", "nemean", "type", "monster", TYPE_RESOLUTION_KEY, God.class.getName());
final Vertex hydra = graph.addVertex(null);
ElementHelper.setProperties(
hydra, "name", "hydra", "type", "monster", TYPE_RESOLUTION_KEY, God.class.getName());
final Vertex cerberus = graph.addVertex(null);
ElementHelper.setProperties(
cerberus, "name", "cerberus", "type", "monster", TYPE_RESOLUTION_KEY, God.class.getName());
final Vertex tartarus = graph.addVertex(null);
ElementHelper.setProperties(
tartarus, "name", "tartarus", "type", "location", TYPE_RESOLUTION_KEY, God.class.getName());
// edges
ElementHelper.setProperties(
jupiter.addEdge("father", saturn), TYPE_RESOLUTION_KEY, FatherEdge.class.getName());
jupiter.addEdge("lives", sky).setProperty("reason", "loves fresh breezes");
jupiter.addEdge("brother", neptune);
jupiter.addEdge("brother", pluto);
ElementHelper.setProperties(
neptune.addEdge("father", saturn), TYPE_RESOLUTION_KEY, FatherEdge.class.getName());
neptune.addEdge("lives", sea).setProperty("reason", "loves waves");
neptune.addEdge("brother", jupiter);
neptune.addEdge("brother", pluto);
ElementHelper.setProperties(
hercules.addEdge("father", jupiter),
TYPE_RESOLUTION_KEY,
FatherEdgeExtended.class.getName());
hercules.addEdge("lives", sky).setProperty("reason", "loves heights");
ElementHelper.setProperties(hercules.addEdge("battled", nemean), "time", 1);
ElementHelper.setProperties(hercules.addEdge("battled", hydra), "time", 2);
ElementHelper.setProperties(hercules.addEdge("battled", cerberus), "time", 12);
ElementHelper.setProperties(
pluto.addEdge("father", saturn), TYPE_RESOLUTION_KEY, FatherEdge.class.getName());
pluto.addEdge("brother", jupiter);
pluto.addEdge("brother", neptune);
pluto.addEdge("lives", tartarus).setProperty("reason", "no fear of death");
pluto.addEdge("pet", cerberus);
cerberus.addEdge("lives", tartarus);
ElementHelper.setProperties(cerberus.addEdge("battled", alcmene), "time", 5);
// commit the transaction to disk
if (graph instanceof TransactionalGraph) ((TransactionalGraph) graph).commit();
}