private File graphMlFile = new File("test-data/Enron_Dataset_v0.12.graphml");
@Before
public void setUp() throws Exception {
FileUtils.deleteRecursively(directory);
db = new GraphDatabaseFactory().newEmbeddedDatabaseBuilder(directory.getAbsolutePath())
.setConfig(GraphDatabaseSettings.nodestore_mapped_memory_size,String.valueOf(20*MEGABYTE))
.setConfig(GraphDatabaseSettings.relationshipstore_mapped_memory_size,String.valueOf(100*MEGABYTE))
.setConfig(GraphDatabaseSettings.nodestore_propertystore_index_keys_mapped_memory_size,String.valueOf(100*MEGABYTE))
.setConfig(GraphDatabaseSettings.strings_mapped_memory_size,String.valueOf(100*MEGABYTE))
.setConfig(GraphDatabaseSettings.keep_logical_logs, "false")