Java Code Examples for io.vertx.proton.ProtonSender#setCondition()

/**
 * Handles a request from a client to establish a link for receiving messages from this server.
 *
 * @param con the connection to the client.
 * @param sender the sender created for the link.
 */
protected void handleSenderOpen(final ProtonConnection con, final ProtonSender sender) {
    final Source remoteSource = sender.getRemoteSource();
    log.debug("client [container: {}] wants to open a link [address: {}] for receiving messages",
            con.getRemoteContainer(), remoteSource);
    try {
        final ResourceIdentifier targetResource = getResourceIdentifier(remoteSource.getAddress());
        final AmqpEndpoint endpoint = getEndpoint(targetResource);
        if (endpoint == null) {
            handleUnknownEndpoint(con, sender, targetResource);
        } else {
            final HonoUser user = Constants.getClientPrincipal(con);
            getAuthorizationService().isAuthorized(user, targetResource, Activity.READ).onComplete(authAttempt -> {
                if (authAttempt.succeeded() && authAttempt.result()) {
                    Constants.copyProperties(con, sender);
                    sender.setSource(sender.getRemoteSource());
                    sender.setTarget(sender.getRemoteTarget());
                    endpoint.onLinkAttach(con, sender, targetResource);
                } else {
                    log.debug("subject [{}] is not authorized to READ from [{}]", user.getName(), targetResource);
                    sender.setCondition(ProtonHelper.condition(AmqpError.UNAUTHORIZED_ACCESS.toString(), "unauthorized"));
                    sender.close();
                }
            });
        }
    } catch (final IllegalArgumentException e) {
        log.debug("client has provided invalid resource identifier as target address", e);
        sender.setCondition(ProtonHelper.condition(AmqpError.NOT_FOUND, "no such address"));
        sender.close();
    }
}
 

/**
 * Handles a client's request to establish a link for receiving responses to service invocations.
 * <p>
 * This method registers a consumer on the vert.x event bus for the given reply-to address. Response messages
 * received over the event bus are transformed into AMQP messages using the {@link #getAmqpReply(EventBusMessage)}
 * method and sent to the client over the established link.
 *
 * @param con The AMQP connection that the link is part of.
 * @param sender The link to establish.
 * @param replyToAddress The reply-to address to create a consumer on the event bus for.
 */
@Override
public final void onLinkAttach(final ProtonConnection con, final ProtonSender sender,
        final ResourceIdentifier replyToAddress) {

    if (!isValidReplyToAddress(replyToAddress)) {
        logger.debug("client [{}] provided invalid reply-to address", sender.getName());
        sender.setCondition(ProtonHelper.condition(AmqpError.INVALID_FIELD,
                String.format("reply-to address must have the following format %s/<tenant>/<reply-address>",
                        getName())));
        sender.close();
        return;
    }

    final String replyTo = replyToAddress.toString();

    if (this.replyToSenderMap.containsKey(replyTo)) {
        logger.debug("client [{}] wanted to subscribe to already subscribed reply-to address [{}]",
                sender.getName(), replyTo);
        sender.setCondition(ProtonHelper.condition(AmqpError.ILLEGAL_STATE,
                String.format("reply-to address [%s] is already subscribed", replyTo)));
        sender.close();
        return;
    }

    logger.debug("establishing response sender link with client [{}]", sender.getName());
    sender.setQoS(ProtonQoS.AT_LEAST_ONCE);
    sender.setSource(sender.getRemoteSource());
    sender.setTarget(sender.getRemoteTarget());
    registerSenderForReplyTo(replyTo, sender);


    HonoProtonHelper.setCloseHandler(sender, remoteClose -> {
        logger.debug("client [{}] closed sender link", sender.getName());
        unregisterSenderForReplyTo(replyTo);
        sender.close();
    });
    HonoProtonHelper.setDetachHandler(sender, remoteDetach -> {
        logger.debug("client [{}] detached sender link", sender.getName());
        unregisterSenderForReplyTo(replyTo);
        sender.close();
    });

    sender.open();
}
 

/**
 * Handles a client's request to establish a link for receiving responses to service invocations.
 * <p>
 * This method opens a sender for sending request replies back to the client.
 *
 * @param con The AMQP connection that the link is part of.
 * @param sender The link to establish.
 * @param replyToAddress The reply-to address to create a consumer on the event bus for.
 */
@Override
public final void onLinkAttach(final ProtonConnection con, final ProtonSender sender,
        final ResourceIdentifier replyToAddress) {

    if (!isValidReplyToAddress(replyToAddress)) {
        logger.debug("client [{}] provided invalid reply-to address", sender.getName());
        sender.setCondition(ProtonHelper.condition(AmqpError.INVALID_FIELD,
                String.format("reply-to address must have the following format %s/<tenant>/<reply-address>",
                        getName())));
        sender.close();
        return;
    }

    final String replyTo = replyToAddress.toString();

    if (this.replyToSenderMap.containsKey(replyTo)) {
        logger.debug("client [{}] wanted to subscribe to already subscribed reply-to address [{}]",
                sender.getName(), replyTo);
        sender.setCondition(ProtonHelper.condition(AmqpError.ILLEGAL_STATE,
                String.format("reply-to address [%s] is already subscribed", replyTo)));
        sender.close();
        return;
    }

    logger.debug("establishing response sender link with client [{}]", sender.getName());
    sender.setQoS(ProtonQoS.AT_LEAST_ONCE);
    sender.setSource(sender.getRemoteSource());
    sender.setTarget(sender.getRemoteTarget());
    registerSenderForReplyTo(replyTo, sender);


    HonoProtonHelper.setCloseHandler(sender, remoteClose -> {
        logger.debug("client [{}] closed sender link", sender.getName());
        unregisterSenderForReplyTo(replyTo);
        sender.close();
    });
    HonoProtonHelper.setDetachHandler(sender, remoteDetach -> {
        logger.debug("client [{}] detached sender link", sender.getName());
        unregisterSenderForReplyTo(replyTo);
        sender.close();
    });

    sender.open();
}
 

@Override
public void onLinkAttach(final ProtonConnection con, final ProtonSender sender, final ResourceIdentifier targetResource) {
    logger.info("Endpoint [{}] does not support data retrieval, closing link.", getName());
    sender.setCondition(ProtonHelper.condition(AmqpError.NOT_IMPLEMENTED, "resource cannot be read from"));
    sender.close();
}