Examples with IndexEntry com.apple.foundationdb.record.IndexEntry used on opensource projects

Example 16 with IndexEntry

use of com.apple.foundationdb.record.IndexEntry in project fdb-record-layer by FoundationDB.

the class TextIndexTest method toMapEntries.

@SuppressWarnings("unchecked")
@Nonnull
private List<Map.Entry<Tuple, List<Integer>>> toMapEntries(@Nonnull List<IndexEntry> indexEntries, @Nullable Tuple prefix) {
    List<Map.Entry<Tuple, List<Integer>>> mapEntries = new ArrayList<>(indexEntries.size());
    for (IndexEntry entry : indexEntries) {
        List<Integer> positionList = (List<Integer>) entry.getValue().get(0);
        if (prefix == null) {
            mapEntries.add(entryOf(entry.getKey(), positionList));
        } else {
            assertEquals(TupleHelpers.subTuple(entry.getKey(), 0, prefix.size()), prefix);
            mapEntries.add(entryOf(TupleHelpers.subTuple(entry.getKey(), prefix.size(), entry.getKey().size()), positionList));
        }
    }
    return mapEntries;
}

Example 17 with IndexEntry

use of com.apple.foundationdb.record.IndexEntry in project fdb-record-layer by FoundationDB.

the class TextIndexTest method scanWithContinuations.

private void scanWithContinuations(@Nonnull Index index, @Nonnull String token, int limit, boolean reverse) throws Exception {
    try (FDBRecordContext context = openContext()) {
        openRecordStore(context);
        final List<IndexEntry> firstResults = scanIndex(recordStore, index, TupleRange.allOf(Tuple.from(token)));
        validateSorted(firstResults);
        List<IndexEntry> scanResults = new ArrayList<>(firstResults.size());
        byte[] continuation = null;
        do {
            RecordCursorIterator<IndexEntry> cursor = recordStore.scanIndex(index, BY_TEXT_TOKEN, TupleRange.allOf(Tuple.from(token)), continuation, reverse ? ScanProperties.REVERSE_SCAN : ScanProperties.FORWARD_SCAN).asIterator();
            for (int i = 0; i < limit || limit == 0; i++) {
                if (cursor.hasNext()) {
                    scanResults.add(cursor.next());
                } else {
                    break;
                }
            }
            continuation = cursor.getContinuation();
            // fire off but don't wait for an on-has-next
            CompletableFuture<Boolean> hasNextFuture = cursor.onHasNext();
            // wait for the same on-has-next
            assertEquals(hasNextFuture.get(), cursor.hasNext());
            if (!cursor.hasNext()) {
                assertThat(cursor.getNoNextReason().isSourceExhausted(), is(true));
            }
        } while (continuation != null);
        if (reverse) {
            Collections.reverse(scanResults);
        }
        assertEquals(firstResults, scanResults);
    }
}

Example 18 with IndexEntry

use of com.apple.foundationdb.record.IndexEntry in project fdb-record-layer by FoundationDB.

the class FDBRecordStoreIndexTest method testIndexOrphanValidationByAutoContinuingCursor.

@Test
public void testIndexOrphanValidationByAutoContinuingCursor() throws Exception {
    Set<IndexEntry> expectedInvalidEntries = setUpIndexOrphanValidation();
    try (FDBDatabaseRunner runner = fdb.newRunner()) {
        AtomicInteger generatorCount = new AtomicInteger();
        // Set a scanned records limit to mock when the transaction is out of band.
        RecordCursorIterator<InvalidIndexEntry> cursor = new AutoContinuingCursor<>(runner, (context, continuation) -> new LazyCursor<>(FDBRecordStore.newBuilder().setContext(context).setKeySpacePath(path).setMetaDataProvider(simpleMetaData(NO_HOOK)).uncheckedOpenAsync().thenApply(currentRecordStore -> {
            generatorCount.getAndIncrement();
            final Index index = currentRecordStore.getRecordMetaData().getIndex("MySimpleRecord$str_value_indexed");
            ScanProperties scanProperties = new ScanProperties(ExecuteProperties.newBuilder().setReturnedRowLimit(Integer.MAX_VALUE).setIsolationLevel(IsolationLevel.SNAPSHOT).setScannedRecordsLimit(4).build());
            return currentRecordStore.getIndexMaintainer(index).validateEntries(continuation, scanProperties);
        }))).asIterator();
        Set<IndexEntry> results = new HashSet<>();
        while (cursor.hasNext()) {
            InvalidIndexEntry invalidIndexEntry = cursor.next();
            assertEquals(InvalidIndexEntry.Reasons.ORPHAN, invalidIndexEntry.getReason());
            IndexEntry entry = invalidIndexEntry.getEntry();
            assertFalse(results.contains(entry), "Entry " + entry + " is duplicated");
            results.add(entry);
        }
        assertEquals(expectedInvalidEntries, results, "Validation should return the index entry that has no associated record.");
        // The number of scans is about the number of index entries (orphan validation) plus the number of records
        // (missing validation).
        assertThat(generatorCount.get(), greaterThanOrEqualTo((20 + 10) / 4));
    }
}

Example 19 with IndexEntry

use of com.apple.foundationdb.record.IndexEntry in project fdb-record-layer by FoundationDB.

the class FDBRecordStoreIndexTest method orphanedIndexEntry.

@Test
public void orphanedIndexEntry() throws Exception {
    try (FDBRecordContext context = openContext()) {
        uncheckedOpenSimpleRecordStore(context);
        recordStore.saveRecord(TestRecords1Proto.MySimpleRecord.newBuilder().setRecNo(1).setStrValueIndexed("foo").setNumValueUnique(1).build());
        recordStore.saveRecord(TestRecords1Proto.MySimpleRecord.newBuilder().setRecNo(2).setStrValueIndexed("bar").setNumValueUnique(2).build());
        recordStore.saveRecord(TestRecords1Proto.MySimpleRecord.newBuilder().setRecNo(3).setStrValueIndexed("baz").setNumValueUnique(3).build());
        commit(context);
    }
    // Delete the "bar" record with the index removed.
    try (FDBRecordContext context = openContext()) {
        uncheckedOpenSimpleRecordStore(context, builder -> {
            builder.removeIndex("MySimpleRecord$str_value_indexed");
        });
        recordStore.deleteRecord(Tuple.from(2));
        commit(context);
    }
    // associated record.
    try (FDBRecordContext context = openContext()) {
        uncheckedOpenSimpleRecordStore(context);
        // Verify our entries
        Index index = recordStore.getRecordMetaData().getIndex("MySimpleRecord$str_value_indexed");
        assertTrue(recordStore.hasIndexEntryRecord(new IndexEntry(index, Tuple.from("foo", 1), TupleHelpers.EMPTY), IsolationLevel.SERIALIZABLE).get(), "'Foo' should exist");
        assertFalse(recordStore.hasIndexEntryRecord(new IndexEntry(index, Tuple.from("bar", 2), TupleHelpers.EMPTY), IsolationLevel.SERIALIZABLE).get(), "'Bar' should be deleted");
        assertTrue(recordStore.hasIndexEntryRecord(new IndexEntry(index, Tuple.from("baz", 3), TupleHelpers.EMPTY), IsolationLevel.SERIALIZABLE).get(), "'Baz' should exist");
        try {
            recordStore.scanIndexRecords("MySimpleRecord$str_value_indexed").asList().get();
            fail("Scan should have found orphaned record");
        } catch (ExecutionException e) {
            assertEquals("record not found from index entry", e.getCause().getMessage());
        }
        commit(context);
    }
    // Try again, but this time scan allowing orphaned entries.
    try (FDBRecordContext context = openContext()) {
        uncheckedOpenSimpleRecordStore(context);
        List<FDBIndexedRecord<Message>> records = recordStore.scanIndexRecords("MySimpleRecord$str_value_indexed", IndexScanType.BY_VALUE, TupleRange.ALL, null, IndexOrphanBehavior.RETURN, ScanProperties.FORWARD_SCAN).asList().get();
        assertEquals(records.size(), 3);
        for (FDBIndexedRecord<Message> record : records) {
            if (record.getIndexEntry().getKey().getString(0).equals("bar")) {
                assertFalse(record.hasStoredRecord(), "Entry for 'bar' should be orphaned");
                assertThrows(RecordCoreException.class, record::getStoredRecord);
                assertThrows(RecordCoreException.class, record::getRecord);
            } else {
                assertTrue(record.hasStoredRecord(), "Entry for '" + record.getIndexEntry().getKey() + "' should have an associated record");
            }
        }
        commit(context);
    }
    // Try once again, but this time skipping orphaned entries
    try (FDBRecordContext context = openContext()) {
        uncheckedOpenSimpleRecordStore(context);
        List<FDBIndexedRecord<Message>> records = recordStore.scanIndexRecords("MySimpleRecord$str_value_indexed", IndexScanType.BY_VALUE, TupleRange.ALL, null, IndexOrphanBehavior.SKIP, ScanProperties.FORWARD_SCAN).asList().get();
        assertEquals(records.size(), 2);
        for (FDBIndexedRecord<Message> record : records) {
            assertNotEquals("bar", record.getIndexEntry().getKey().getString(0));
            assertTrue(record.hasStoredRecord(), "Entry for '" + record.getIndexEntry().getKey() + "' should have an associated record");
        }
        commit(context);
    }
    // Validate the index. Should only return the index entry that has no associated record.
    try (FDBRecordContext context = openContext()) {
        uncheckedOpenSimpleRecordStore(context);
        final Index index = recordStore.getRecordMetaData().getIndex("MySimpleRecord$str_value_indexed");
        final List<InvalidIndexEntry> invalidIndexEntries = recordStore.getIndexMaintainer(index).validateEntries(null, null).asList().get();
        assertEquals(Collections.singletonList(InvalidIndexEntry.newOrphan(new IndexEntry(index, Tuple.from("bar", 2), TupleHelpers.EMPTY))), invalidIndexEntries, "Validation should return the index entry that has no associated record.");
        commit(context);
    }
}

Example 20 with IndexEntry

use of com.apple.foundationdb.record.IndexEntry in project fdb-record-layer by FoundationDB.

the class FDBRecordStoreIndexTest method testIndexMissingValidation.

@Test
public void testIndexMissingValidation() throws Exception {
    final int nRecords = 10;
    try (FDBRecordContext context = openContext()) {
        openSimpleRecordStore(context);
        for (int i = 0; i < nRecords; i++) {
            TestRecords1Proto.MySimpleRecord.Builder recBuilder = TestRecords1Proto.MySimpleRecord.newBuilder();
            recBuilder.setRecNo(i);
            recBuilder.setStrValueIndexed(Integer.toString(i));
            // nRecords is not larger than 10, so the indexes (sorted by the string version of recNo) are in the
            // same order as the records. This can make the test easy.
            recordStore.saveRecord(recBuilder.build());
        }
        commit(context);
    }
    // Delete the indexes of some records.
    Set<InvalidIndexEntry> expectedInvalidEntries = new HashSet<>();
    try (FDBRecordContext context = openContext()) {
        final Index index = recordStore.getRecordMetaData().getIndex("MySimpleRecord$str_value_indexed");
        openSimpleRecordStore(context);
        List<FDBStoredRecord<Message>> savedRecords = recordStore.scanRecords(TupleRange.ALL, null, ScanProperties.FORWARD_SCAN).asList().get();
        List<IndexEntry> indexEntries = recordStore.scanIndex(index, IndexScanType.BY_VALUE, TupleRange.ALL, null, ScanProperties.FORWARD_SCAN).asList().get();
        for (int i = 0; i < nRecords; i += 2) {
            IndexEntry indexEntry = indexEntries.get(i);
            FDBStoredRecord<Message> record = savedRecords.get(i);
            final Tuple valueKey = indexEntry.getKey();
            final Tuple entryKey = indexEntryKey(index, valueKey, record.getPrimaryKey());
            final byte[] keyBytes = recordStore.indexSubspace(index).pack(valueKey);
            byte[] v0 = recordStore.getContext().ensureActive().get(keyBytes).get();
            recordStore.getContext().ensureActive().clear(keyBytes);
            byte[] v = recordStore.getContext().ensureActive().get(keyBytes).get();
            expectedInvalidEntries.add(InvalidIndexEntry.newMissing(indexEntry, record));
        }
        commit(context);
    }
    try (FDBDatabaseRunner runner = fdb.newRunner()) {
        AtomicInteger generatorCount = new AtomicInteger();
        // Set a scanned records limit to mock when the NoNextReason is out of band.
        RecordCursorIterator<InvalidIndexEntry> cursor = new AutoContinuingCursor<>(runner, (context, continuation) -> new LazyCursor<>(FDBRecordStore.newBuilder().setContext(context).setKeySpacePath(path).setMetaDataProvider(simpleMetaData(NO_HOOK)).openAsync().thenApply(currentRecordStore -> {
            generatorCount.getAndIncrement();
            final Index index = currentRecordStore.getRecordMetaData().getIndex("MySimpleRecord$str_value_indexed");
            ScanProperties scanProperties = new ScanProperties(ExecuteProperties.newBuilder().setReturnedRowLimit(Integer.MAX_VALUE).setIsolationLevel(IsolationLevel.SNAPSHOT).setScannedRecordsLimit(4).build());
            return currentRecordStore.getIndexMaintainer(index).validateEntries(continuation, scanProperties);
        }))).asIterator();
        Set<InvalidIndexEntry> results = new HashSet<>();
        cursor.forEachRemaining(results::add);
        assertEquals(expectedInvalidEntries, results);
        // The number of scans is about the number of index entries (orphan validation) plus the number of records
        // (missing validation).
        assertThat(generatorCount.get(), greaterThanOrEqualTo((5 + 10) / 4));
    }
}