Examples with SnapshotIdReader io.datarouter.filesystem.snapshot.reader.SnapshotIdReader used on opensource projects

Example 1 with SnapshotIdReader

use of io.datarouter.filesystem.snapshot.reader.SnapshotIdReader in project datarouter by hotpads.

the class DatarouterSnapshotEntryHandler method buildTable.

private ContainerTag<?> buildTable(SnapshotKey snapshotKey, long id) {
    SnapshotGroup group = groups.getGroup(snapshotKey.groupId);
    var reader = new SnapshotIdReader(snapshotKey, groups);
    SnapshotRecord record = reader.getRecord(id);
    SnapshotRecordStringDecoder decoder = ReflectionTool.create(group.getSnapshotEntryDecoderClass());
    SnapshotRecordStrings decoded = decoder.decode(record);
    List<Twin<String>> rows = new ArrayList<>();
    rows.add(new Twin<>("id", Long.toString(record.id)));
    rows.add(new Twin<>(decoder.keyName(), decoded.key));
    rows.add(new Twin<>(decoder.valueName(), decoded.value));
    IntStream.range(0, decoded.columnValues.size()).mapToObj(column -> new Twin<>(decoder.columnValueName(column), decoded.columnValues.get(column))).forEach(rows::add);
    var table = new J2HtmlTable<Twin<String>>().withClasses("sortable table table-sm table-striped my-4 border").withColumn("field", twin -> twin.getLeft()).withColumn("value", twin -> twin.getRight()).build(rows);
    return table;
}

Example 2 with SnapshotIdReader

use of io.datarouter.filesystem.snapshot.reader.SnapshotIdReader in project datarouter by hotpads.

the class BaseSnapshotTests method testSearches.

@Test
public void testSearches() {
    if (!ENABLED_TESTS.contains(TestId.SEARCHES)) {
        return;
    }
    BlockLoader blockLoader = makeBlockLoader(useMemoryCache(), shareMemoryCache());
    var reader = new ScanningSnapshotReader(snapshotKey, exec, getNumThreads(), blockLoader, SCAN_NUM_BLOCKS);
    int step = 1000;
    int limit = 1000;
    Scanner.iterate(0, fromId -> fromId += step).advanceWhile(fromId -> fromId < sortedInputs.size() - limit).parallel(new ParallelScannerContext(scanExec, getNumThreads(), true)).forEach(fromId -> {
        var idReader = new SnapshotIdReader(snapshotKey, blockLoader);
        // known first key inclusive
        byte[] searchKey = idReader.getRecord(fromId).key;
        List<SnapshotLeafRecord> outputsInclusive = reader.scanLeafRecords(searchKey, true).limit(limit).list();
        for (int i = 0; i < limit; ++i) {
            Input input = sortedInputs.get(fromId + i);
            SnapshotLeafRecord output = outputsInclusive.get(i);
            Assert.assertEquals(fromId + i, output.id);
            Assert.assertEquals(new Bytes(input.entry.key()), new Bytes(output.key));
        }
        // known first key exclusive
        List<SnapshotLeafRecord> outputsExclusive = reader.scanLeafRecords(searchKey, false).limit(limit).list();
        for (int i = 0; i < limit; ++i) {
            // plus one because exclusive
            Input input = sortedInputs.get(fromId + i + 1);
            SnapshotLeafRecord output = outputsExclusive.get(i);
            Assert.assertEquals(input.id, output.id);
            Assert.assertEquals(new Bytes(input.entry.key()), new Bytes(output.key));
        }
        // fake first key (should act like exclusive)
        byte[] nonExistentKey = ByteTool.concat(searchKey, new byte[] { 0, 0, 0, 0, 0, 0, 0, 0, 0 });
        List<SnapshotLeafRecord> outputsNonExistentKey = reader.scanLeafRecords(nonExistentKey, true).limit(limit).list();
        for (int i = 0; i < limit; ++i) {
            // plus one because the first key didn't exist
            Input input = sortedInputs.get(fromId + i + 1);
            SnapshotLeafRecord output = outputsNonExistentKey.get(i);
            Assert.assertEquals(input.id, output.id);
            Assert.assertEquals(new Bytes(input.entry.key()), new Bytes(output.key));
        }
    });
}

Example 3 with SnapshotIdReader

use of io.datarouter.filesystem.snapshot.reader.SnapshotIdReader in project datarouter by hotpads.

the class BaseSnapshotTests method testOperationInternal.

private void testOperationInternal(BlockLoader threadSafeBlockLoader, boolean random, boolean multiThreaded, Operation operation) {
    List<Input> searchKeys = random ? randomInputs : sortedInputs;
    int batchSize = 10_000;
    var parallelScannerContext = new ParallelScannerContext(exec, getNumThreads(), true, multiThreaded);
    var count = new AtomicLong();
    Scanner.of(searchKeys).batch(batchSize).parallel(parallelScannerContext).forEach(batch -> {
        var idReader = new SnapshotIdReader(snapshotKey, threadSafeBlockLoader);
        var keyReader = new SnapshotKeyReader(snapshotKey, threadSafeBlockLoader);
        for (int i = 0; i < batch.size(); ++i) {
            Input input = batch.get(i);
            long id = input.id;
            byte[] key = input.entry.key();
            byte[] value = input.entry.value();
            if (Operation.GET_LEAF_RECORD == operation) {
                SnapshotLeafRecord leafRecord = idReader.leafRecord(id);
                if (!Arrays.equals(key, leafRecord.key)) {
                    String message = String.format("%s, expected=%s, actual=%s", id, utf8(key), utf8(leafRecord.key));
                    throw new RuntimeException(message);
                }
                if (!Arrays.equals(value, leafRecord.value)) {
                    String message = String.format("%s, expected=%s, actual=%s", id, utf8(value), utf8(leafRecord.value));
                    throw new RuntimeException(message);
                }
            } else if (Operation.GET_RECORD == operation) {
                SnapshotRecord result = idReader.getRecord(id);
                if (id != result.id) {
                    String message = String.format("%s, expected=%s, actual=%s", id, id, result.id);
                    throw new RuntimeException(message);
                }
                if (!Arrays.equals(key, result.key)) {
                    String message = String.format("%s, expected=%s, actual=%s", id, utf8(key), utf8(result.key));
                    throw new RuntimeException(message);
                }
                if (!SnapshotEntry.equal(input.entry, result.entry())) {
                    String message = String.format("%s, expected=%s, actual=%s", i, // TODO print more than column 0
                    utf8(input.entry.columnValues[0]), utf8(result.columnValues[0]));
                    throw new RuntimeException(message);
                }
            } else if (Operation.FIND_ID == operation) {
                if (keyReader.findRecordId(key).isEmpty()) {
                    String message = String.format("%s, %s not found", i, utf8(key));
                    throw new RuntimeException(message);
                }
                if (id != keyReader.findRecordId(key).get().longValue()) {
                    String message = String.format("%s, %s not found", i, utf8(key));
                    throw new RuntimeException(message);
                }
            } else if (Operation.FIND_RECORD == operation) {
                Optional<SnapshotRecord> output = keyReader.findRecord(key);
                if (output.isEmpty()) {
                    String message = String.format("%s, %s not found", i, utf8(key));
                    throw new RuntimeException(message);
                }
                if (!SnapshotEntry.equal(input.entry, output.get().entry())) {
                    String message = String.format("%s, expected=%s, actual=%s", i, // TODO print more than column 0
                    utf8(batch.get(i).entry.columnValues[0]), utf8(output.get().columnValues[0]));
                    throw new RuntimeException(message);
                }
            }
        }
        count.addAndGet(batch.size());
        logger.warn("{}, {}, {} for {}/{} {}", random ? "random" : "sorted", multiThreaded ? "multi" : "single", operation.toString().toLowerCase(), NumberFormatter.addCommas(count.get()), NumberFormatter.addCommas(searchKeys.size()), utf8(ListTool.getLast(batch).entry.key()));
    });
}

Example 4 with SnapshotIdReader

use of io.datarouter.filesystem.snapshot.reader.SnapshotIdReader in project datarouter by hotpads.

the class FilesystemSnapshotLargeTests method testGets.

@Test
public void testGets() {
    if (!PERSIST) {
        return;
    }
    var reader = new SnapshotIdReader(benchmark.snapshotKey, cache);
    for (long id = 0; id < benchmark.numEntries; ++id) {
        SnapshotLeafRecord leafRecord = reader.leafRecord(id);
        Assert.assertEquals(leafRecord.key, SnapshotBenchmark.makeKey(id));
        Assert.assertEquals(leafRecord.value, SnapshotBenchmark.makeValue(id));
    }
}