Examples with FIELD_DATA org.eclipse.hono.util.RegistrationConstants.FIELD_DATA used on opensource projects

Example 1 with FIELD_DATA

use of org.eclipse.hono.util.RegistrationConstants.FIELD_DATA in project hono by eclipse.

the class FileBasedRegistrationService method saveToFile.

Future<Void> saveToFile() {
    if (!getConfig().isSaveToFile()) {
        return Future.succeededFuture();
    } else if (dirty) {
        return checkFileExists(true).compose(s -> {
            final AtomicInteger idCount = new AtomicInteger();
            final JsonArray tenants = new JsonArray();
            for (Entry<String, Map<String, JsonObject>> entry : identities.entrySet()) {
                final JsonArray devices = new JsonArray();
                for (Entry<String, JsonObject> deviceEntry : entry.getValue().entrySet()) {
                    devices.add(new JsonObject().put(FIELD_PAYLOAD_DEVICE_ID, deviceEntry.getKey()).put(FIELD_DATA, deviceEntry.getValue()));
                    idCount.incrementAndGet();
                }
                tenants.add(new JsonObject().put(FIELD_TENANT, entry.getKey()).put(ARRAY_DEVICES, devices));
            }
            Future<Void> writeHandler = Future.future();
            vertx.fileSystem().writeFile(getConfig().getFilename(), Buffer.factory.buffer(tenants.encodePrettily()), writeHandler.completer());
            return writeHandler.map(ok -> {
                dirty = false;
                log.trace("successfully wrote {} device identities to file {}", idCount.get(), getConfig().getFilename());
                return (Void) null;
            }).otherwise(t -> {
                log.warn("could not write device identities to file {}", getConfig().getFilename(), t);
                return (Void) null;
            });
        });
    } else {
        log.trace("registry does not need to be persisted");
        return Future.succeededFuture();
    }
}