private Neo4jGraph(final GraphDatabaseService baseGraph) {
this.configuration.copy(EMPTY_CONFIGURATION);
this.baseGraph = baseGraph;
this.transactionManager =
((GraphDatabaseAPI) baseGraph)
.getDependencyResolver()
.resolveDependency(TransactionManager.class);
this.cypher = new ExecutionEngine(this.baseGraph);
this.neo4jGraphVariables = new Neo4jGraphVariables(this);
///////////
final Optional<Boolean> metaProperties =
this.neo4jGraphVariables.get(Graph.System.system(CONFIG_META_PROPERTIES));
if (metaProperties.isPresent()) {
this.supportsMetaProperties = metaProperties.get();
} else {
this.supportsMetaProperties = false;
this.neo4jGraphVariables.set(Graph.System.system(CONFIG_META_PROPERTIES), false);
}
final Optional<Boolean> multiProperties =
this.neo4jGraphVariables.get(Graph.System.system(CONFIG_MULTI_PROPERTIES));
if (multiProperties.isPresent()) {
this.supportsMultiProperties = multiProperties.get();
} else {
this.supportsMultiProperties = false;
this.neo4jGraphVariables.set(Graph.System.system(CONFIG_MULTI_PROPERTIES), false);
}
if ((this.supportsMetaProperties && !this.supportsMultiProperties)
|| (!this.supportsMetaProperties && this.supportsMultiProperties)) {
tx().rollback();
throw new UnsupportedOperationException(
"Neo4jGraph currently requires either both meta- and multi-properties activated or neither activated");
}
tx().commit();
///////////
}
private Neo4jGraph(final Configuration configuration) {
try {
this.configuration.copy(EMPTY_CONFIGURATION);
this.configuration.copy(configuration);
final String directory = this.configuration.getString(CONFIG_DIRECTORY);
final Map neo4jSpecificConfig =
ConfigurationConverter.getMap(this.configuration.subset(CONFIG_CONF));
final boolean ha = this.configuration.getBoolean(CONFIG_HA, false);
// if HA is enabled then use the correct factory to instantiate the GraphDatabaseService
this.baseGraph =
ha
? new HighlyAvailableGraphDatabaseFactory()
.newHighlyAvailableDatabaseBuilder(directory)
.setConfig(neo4jSpecificConfig)
.newGraphDatabase()
: new GraphDatabaseFactory()
.newEmbeddedDatabaseBuilder(directory)
.setConfig(neo4jSpecificConfig)
.newGraphDatabase();
this.transactionManager =
((GraphDatabaseAPI) this.baseGraph)
.getDependencyResolver()
.resolveDependency(TransactionManager.class);
this.cypher = new ExecutionEngine(this.baseGraph);
this.neo4jGraphVariables = new Neo4jGraphVariables(this);
///////////
if (!this.neo4jGraphVariables.get(Graph.System.system(CONFIG_META_PROPERTIES)).isPresent())
this.neo4jGraphVariables.set(
Graph.System.system(CONFIG_META_PROPERTIES),
this.configuration.getBoolean(CONFIG_META_PROPERTIES, false));
// TODO: Logger saying the configuration properties are ignored if already in Graph.Variables
if (!this.neo4jGraphVariables.get(Graph.System.system(CONFIG_MULTI_PROPERTIES)).isPresent())
this.neo4jGraphVariables.set(
Graph.System.system(CONFIG_MULTI_PROPERTIES),
this.configuration.getBoolean(CONFIG_MULTI_PROPERTIES, false));
// TODO: Logger saying the configuration properties are ignored if already in Graph.Variables
this.supportsMetaProperties =
this.neo4jGraphVariables.<Boolean>get(Graph.System.system(CONFIG_META_PROPERTIES)).get();
this.supportsMultiProperties =
this.neo4jGraphVariables.<Boolean>get(Graph.System.system(CONFIG_MULTI_PROPERTIES)).get();
if ((this.supportsMetaProperties && !this.supportsMultiProperties)
|| (!this.supportsMetaProperties && this.supportsMultiProperties)) {
tx().rollback();
throw new UnsupportedOperationException(
"Neo4jGraph currently requires either both meta- and multi-properties activated or neither activated");
}
tx().commit();
///////////
} catch (Exception e) {
if (this.baseGraph != null) this.baseGraph.shutdown();
throw new RuntimeException(e.getMessage(), e);
}
}