@Test
public void shouldReadRelationshipRecords() throws IOException {
URL nodeStoreFile = getClass().getResource("exampledb/neostore.relationshipstore.db");
LegacyRelationshipStoreReader relationshipStoreReader =
new LegacyRelationshipStoreReader(new File(nodeStoreFile.getFile()));
assertEquals(1500, relationshipStoreReader.getMaxId());
Iterable<RelationshipRecord> records = relationshipStoreReader.readRelationshipStore();
int relationshipCount = 0;
for (RelationshipRecord record : records) {
if (record.inUse()) relationshipCount++;
}
assertEquals(500, relationshipCount);
relationshipStoreReader.close();
}
private void migrateRelationships(
RelationshipStore relationshipStore, PropertyWriter propertyWriter) throws IOException {
long nodeMaxId = legacyStore.getNodeStoreReader().getMaxId();
Iterable<RelationshipRecord> records =
legacyStore.getRelationshipStoreReader().readRelationshipStore();
for (RelationshipRecord relationshipRecord : records) {
reportProgress(nodeMaxId + relationshipRecord.getId());
relationshipStore.setHighId(relationshipRecord.getId() + 1);
if (relationshipRecord.inUse()) {
long startOfPropertyChain = relationshipRecord.getNextProp();
if (startOfPropertyChain != Record.NO_NEXT_RELATIONSHIP.intValue()) {
long propertyRecordId = migrateProperties(startOfPropertyChain, propertyWriter);
relationshipRecord.setNextProp(propertyRecordId);
}
relationshipStore.updateRecord(relationshipRecord);
} else {
relationshipStore.freeId(relationshipRecord.getId());
}
}
legacyStore.getRelationshipStoreReader().close();
}