Examples with ScanCursor com.lambdaworks.redis.ScanCursor used on opensource projects

Example 1 with ScanCursor

use of com.lambdaworks.redis.ScanCursor in project moleculer-java by moleculer-java.

the class RedisGetSetClient method clean.

private final CompletionStage<Object> clean(RedisFuture<KeyScanCursor<byte[]>> future, ScanArgs args, String match) {
    return future.thenCompose(keyScanCursor -> {
        List<byte[]> keys = keyScanCursor.getKeys();
        if (keys == null || keys.isEmpty()) {
            return CompletableFuture.completedFuture(keyScanCursor);
        }
        if (match != null) {
            Iterator<byte[]> i = keys.iterator();
            while (i.hasNext()) {
                if (!Matcher.matches(new String(i.next(), StandardCharsets.UTF_8), match)) {
                    i.remove();
                }
            }
        }
        if (keys.isEmpty()) {
            return CompletableFuture.completedFuture(keyScanCursor);
        }
        byte[][] array = new byte[keys.size()][];
        keys.toArray(array);
        return client.del(array).thenApply(nul -> keyScanCursor);
    }).thenApply(keyScanCursor -> {
        if (((KeyScanCursor<byte[]>) keyScanCursor).isFinished()) {
            return null;
        }
        return ((KeyScanCursor<byte[]>) keyScanCursor).getCursor();
    }).thenCompose(currentCursor -> {
        if (currentCursor == null) {
            return CompletableFuture.completedFuture(null);
        }
        return clean(new ScanCursor((String) currentCursor, false), args, match);
    });
}