@Test
public void test_phys_record_reused() {
final long recid = engine.put(1L, Serializer.LONG_SERIALIZER);
final long physRecid = engine.index.getLong(recid * 8 + StorageDirect.INDEX_OFFSET_START * 8);
engine.delete(recid, Serializer.LONG_SERIALIZER);
final long recid2 = engine.put(1L, Serializer.LONG_SERIALIZER);
assertEquals(recid, recid2);
assertEquals(physRecid, engine.index.getLong(recid * 8 + StorageDirect.INDEX_OFFSET_START * 8));
}
@Test
public void test_index_record_delete_and_reusef() {
long recid = engine.put(1000L, Serializer.LONG_SERIALIZER);
engine.commit();
assertEquals(1, countIndexRecords());
assertEquals(Engine.LAST_RESERVED_RECID + 1, recid);
engine.delete(recid, Serializer.LONG_SERIALIZER);
engine.commit();
assertEquals(0, countIndexRecords());
long recid2 = engine.put(1000L, Serializer.LONG_SERIALIZER);
engine.commit();
// test that previously deleted index slot was reused
assertEquals(recid, recid2);
assertEquals(1, countIndexRecords());
assertNotEquals(0, engine.index.getLong(recid * 8 + StorageDirect.INDEX_OFFSET_START * 8));
}
@Test
public void test_index_record_delete() {
long recid = engine.put(1000L, Serializer.LONG_SERIALIZER);
engine.commit();
assertEquals(1, countIndexRecords());
engine.delete(recid, Serializer.LONG_SERIALIZER);
engine.commit();
assertEquals(0, countIndexRecords());
}
@Test
public void in_memory_test() {
StorageDirect engine = new StorageDirect(Volume.memoryFactory(false));
Map<Long, Integer> recids = new HashMap<Long, Integer>();
for (int i = 0; i < 1000; i++) {
long recid = engine.put(i, Serializer.BASIC_SERIALIZER);
recids.put(recid, i);
}
for (Long recid : recids.keySet()) {
assertEquals(recids.get(recid), engine.get(recid, Serializer.BASIC_SERIALIZER));
}
}
@Test
public void test_index_record_delete_and_reuse_large() {
final long MAX = 10;
List<Long> recids = new ArrayList<Long>();
for (int i = 0; i < MAX; i++) {
recids.add(engine.put(0L, Serializer.LONG_SERIALIZER));
}
for (long recid : recids) {
engine.delete(recid, Serializer.LONG_SERIALIZER);
}
// now allocate again second recid list
List<Long> recids2 = new ArrayList<Long>();
for (int i = 0; i < MAX; i++) {
recids2.add(engine.put(0L, Serializer.LONG_SERIALIZER));
}
// second list should be reverse of first, as Linked Offset List is LIFO
Collections.reverse(recids);
assertEquals(recids, recids2);
}
@Test
public void test_index_stores_record_size() throws IOException {
final long recid = engine.put(1, Serializer.INTEGER_SERIALIZER);
engine.commit();
assertEquals(
4, engine.index.getUnsignedShort(recid * 8 + StorageDirect.INDEX_OFFSET_START * 8));
assertEquals(Integer.valueOf(1), engine.get(recid, Serializer.INTEGER_SERIALIZER));
engine.update(recid, 1L, Serializer.LONG_SERIALIZER);
engine.commit();
assertEquals(
8, engine.index.getUnsignedShort(recid * 8 + StorageDirect.INDEX_OFFSET_START * 8));
assertEquals(Long.valueOf(1), engine.get(recid, Serializer.LONG_SERIALIZER));
}
@Test
public void compact() {
Map<Long, Long> recids = new HashMap<Long, Long>();
for (Long l = 0L; l < 1000; l++) {
recids.put(l, engine.put(l, Serializer.LONG_SERIALIZER));
}
engine.commit();
engine.compact();
for (Map.Entry<Long, Long> e : recids.entrySet()) {
Long recid = e.getValue();
Long value = e.getKey();
assertEquals(value, engine.get(recid, Serializer.LONG_SERIALIZER));
}
}