@Before
public void setUp() throws Exception {
// todo cleanup !!
mappingContext = new Neo4jMappingContext();
MappingInfrastructure infrastructure = createInfrastructure(mappingContext);
template = new Neo4jTemplate(infrastructure);
nodeEntityStateFactory = createNodeEntityStateFactory(mappingContext);
relationshipEntityStateFactory = createRelationshipEntityStateFactory(mappingContext);
infrastructure.setNodeEntityStateFactory(nodeEntityStateFactory);
infrastructure.setRelationshipEntityStateFactory(relationshipEntityStateFactory);
template.postConstruct();
entityStateHandler = infrastructure.getEntityStateHandler();
nodeEntityInstantiator = new NodeEntityInstantiator(entityStateHandler);
relationshipEntityInstantiator = new RelationshipEntityInstantiator(entityStateHandler);
nodeTypeMapper =
new DefaultTypeMapper<Node>(
new TRSTypeAliasAccessor<Node>(infrastructure.getNodeTypeRepresentationStrategy()),
asList(new ClassValueTypeInformationMapper()));
nodeStateTransmitter = new SourceStateTransmitter<Node>(nodeEntityStateFactory);
relationshipStateTransmitter =
new SourceStateTransmitter<Relationship>(relationshipEntityStateFactory);
conversionService = template.getConversionService();
fetchHandler =
new Neo4jEntityFetchHandler(
entityStateHandler,
conversionService,
nodeStateTransmitter,
relationshipStateTransmitter);
final EntityTools<Node> nodeEntityTools =
new EntityTools<Node>(
infrastructure.getNodeTypeRepresentationStrategy(),
nodeEntityStateFactory,
nodeEntityInstantiator);
final EntityTools<Relationship> relationshipEntityTools =
new EntityTools<Relationship>(
infrastructure.getRelationshipTypeRepresentationStrategy(),
relationshipEntityStateFactory,
relationshipEntityInstantiator);
entityPersister =
new Neo4jEntityPersister(
conversionService,
nodeEntityTools,
relationshipEntityTools,
mappingContext,
entityStateHandler);
tx = template.beginTx();
group = new Group();
michael = new Person("Michael", 37);
emil = new Person("Emil", 30);
andres = new Person("Andrés", 36);
}
private MappingInfrastructure createInfrastructure(Neo4jMappingContext mappingContext)
throws Exception {
MappingInfrastructure infrastructure = new MappingInfrastructure();
final GraphDatabaseService gdb = new ImpermanentGraphDatabase();
infrastructure.setGraphDatabaseService(gdb);
final DelegatingGraphDatabase graphDatabase = new DelegatingGraphDatabase(gdb);
infrastructure.setGraphDatabase(graphDatabase);
infrastructure.setMappingContext(mappingContext);
final EntityStateHandler entityStateHandler =
new EntityStateHandler(mappingContext, graphDatabase);
infrastructure.setNodeTypeRepresentationStrategy(new NoopNodeTypeRepresentationStrategy());
infrastructure.setRelationshipTypeRepresentationStrategy(
new NoopRelationshipTypeRepresentationStrategy());
infrastructure.setConversionService(new Neo4jConversionServiceFactoryBean().getObject());
infrastructure.setEntityStateHandler(entityStateHandler);
return infrastructure;
}