Examples with OpcUaClient org.eclipse.milo.opcua.sdk.client.OpcUaClient used on opensource projects

Example 16 with OpcUaClient

use of org.eclipse.milo.opcua.sdk.client.OpcUaClient in project milo by eclipse.

the class SessionFsmFactory method configureClosingState.

private static void configureClosingState(FsmBuilder<State, Event> fb, OpcUaClient client) {
    /* Transitions */
    fb.when(State.Closing).on(Event.CloseSessionSuccess.class).transitionTo(State.Inactive);
    /* External Transition Actions */
    fb.onTransitionTo(State.Closing).from(State.Active).via(Event.CloseSession.class).execute(ctx -> {
        SessionFsm.CloseFuture closeFuture = new SessionFsm.CloseFuture();
        KEY_CLOSE_FUTURE.set(ctx, closeFuture);
        Event.CloseSession closeSession = (Event.CloseSession) ctx.event();
        complete(closeSession.future).with(closeFuture.future);
        OpcUaSession session = KEY_SESSION.get(ctx);
        closeSession(ctx, client, session).whenComplete((u, ex) -> {
            if (u != null) {
                LOGGER.debug("[{}] Session closed: {}", ctx.getInstanceId(), session);
            } else {
                LOGGER.debug("[{}] CloseSession failed: {}", ctx.getInstanceId(), ex.getMessage(), ex);
            }
            ctx.fireEvent(new Event.CloseSessionSuccess());
        });
    });
    fb.onTransitionFrom(State.Closing).to(State.Inactive).via(Event.CloseSessionSuccess.class).execute(ctx -> {
        SessionFsm.CloseFuture closeFuture = KEY_CLOSE_FUTURE.get(ctx);
        if (closeFuture != null) {
            client.getConfig().getExecutor().execute(() -> closeFuture.future.complete(Unit.VALUE));
        }
    });
    /* Internal Transition Actions */
    fb.onInternalTransition(State.Closing).via(Event.CloseSession.class).execute(ctx -> {
        Event.CloseSession event = (Event.CloseSession) ctx.event();
        SessionFsm.CloseFuture closeFuture = KEY_CLOSE_FUTURE.get(ctx);
        if (closeFuture != null) {
            complete(event.future).with(closeFuture.future);
        }
    });
    fb.onInternalTransition(State.Closing).via(e -> e.getClass() != Event.CloseSession.class).execute(ctx -> ctx.shelveEvent(ctx.event()));
}

Example 17 with OpcUaClient

use of org.eclipse.milo.opcua.sdk.client.OpcUaClient in project milo by eclipse.

the class SessionFsmFactory method transferSubscriptions.

@SuppressWarnings("Duplicates")
private static CompletableFuture<Unit> transferSubscriptions(FsmContext<State, Event> ctx, OpcUaClient client, OpcUaSession session) {
    UaStackClient stackClient = client.getStackClient();
    OpcUaSubscriptionManager subscriptionManager = client.getSubscriptionManager();
    ImmutableList<UaSubscription> subscriptions = subscriptionManager.getSubscriptions();
    if (subscriptions.isEmpty()) {
        return completedFuture(Unit.VALUE);
    }
    CompletableFuture<Unit> transferFuture = new CompletableFuture<>();
    UInteger[] subscriptionIdsArray = subscriptions.stream().map(UaSubscription::getSubscriptionId).toArray(UInteger[]::new);
    TransferSubscriptionsRequest request = new TransferSubscriptionsRequest(client.newRequestHeader(session.getAuthenticationToken()), subscriptionIdsArray, true);
    LOGGER.debug("[{}] Sending TransferSubscriptionsRequest...", ctx.getInstanceId());
    stackClient.sendRequest(request).thenApply(TransferSubscriptionsResponse.class::cast).whenComplete((tsr, ex) -> {
        if (tsr != null) {
            List<TransferResult> results = l(tsr.getResults());
            LOGGER.debug("[{}] TransferSubscriptions supported: {}", ctx.getInstanceId(), tsr.getResponseHeader().getServiceResult());
            if (LOGGER.isDebugEnabled()) {
                try {
                    Stream<UInteger> subscriptionIds = subscriptions.stream().map(UaSubscription::getSubscriptionId);
                    Stream<StatusCode> statusCodes = results.stream().map(TransferResult::getStatusCode);
                    // noinspection UnstableApiUsage
                    String[] ss = Streams.zip(subscriptionIds, statusCodes, (i, s) -> String.format("id=%s/%s", i, StatusCodes.lookup(s.getValue()).map(sa -> sa[0]).orElse(s.toString()))).toArray(String[]::new);
                    LOGGER.debug("[{}] TransferSubscriptions results: {}", ctx.getInstanceId(), Arrays.toString(ss));
                } catch (Throwable t) {
                    LOGGER.error("[{}] error logging TransferSubscription results", ctx.getInstanceId(), t);
                }
            }
            client.getConfig().getExecutor().execute(() -> {
                for (int i = 0; i < results.size(); i++) {
                    TransferResult result = results.get(i);
                    if (!result.getStatusCode().isGood()) {
                        UaSubscription subscription = subscriptions.get(i);
                        subscriptionManager.transferFailed(subscription.getSubscriptionId(), result.getStatusCode());
                    }
                }
            });
            transferFuture.complete(Unit.VALUE);
        } else {
            StatusCode statusCode = UaException.extract(ex).map(UaException::getStatusCode).orElse(StatusCode.BAD);
            LOGGER.debug("[{}] TransferSubscriptions not supported: {}", ctx.getInstanceId(), statusCode);
            client.getConfig().getExecutor().execute(() -> {
                // because the list from getSubscriptions() above is a copy.
                for (UaSubscription subscription : subscriptions) {
                    subscriptionManager.transferFailed(subscription.getSubscriptionId(), statusCode);
                }
            });
            // supported but server implementations interpret the spec differently.
            if (statusCode.getValue() == StatusCodes.Bad_NotImplemented || statusCode.getValue() == StatusCodes.Bad_NotSupported || statusCode.getValue() == StatusCodes.Bad_OutOfService || statusCode.getValue() == StatusCodes.Bad_ServiceUnsupported) {
                // One of the expected responses; continue moving through the FSM.
                transferFuture.complete(Unit.VALUE);
            } else {
                // An unexpected response; complete exceptionally and start over.
                // Subsequent runs through the FSM will not attempt transfer because
                // transferFailed() has been called for all the existing subscriptions.
                // This will prevent us from getting stuck in a "loop" attempting to
                // reconnect to a defective server that responds with a channel-level
                // Error message to subscription transfer requests instead of an
                // application-level ServiceFault.
                transferFuture.completeExceptionally(ex);
            }
        }
    });
    return transferFuture;
}

Example 18 with OpcUaClient

use of org.eclipse.milo.opcua.sdk.client.OpcUaClient in project JBM by numen06.

the class OpcUaTemplate method readItem.

public String readItem(String deviceId, OpcPoint point) throws Exception {
    int namespace = point.getNamespace();
    String tag = point.getTagName();
    NodeId nodeId = new NodeId(namespace, tag);
    CompletableFuture<String> value = new CompletableFuture<>();
    OpcUaClient client = getOpcUaClient(deviceId);
    log.debug("start read point(ns={};s={})", namespace, tag);
    client.connect().get();
    client.readValue(0.0, TimestampsToReturn.Both, nodeId).thenAccept(dataValue -> {
        try {
            value.complete(dataValue.getValue().getValue().toString());
        } catch (Exception e) {
            log.error("accept point(ns={};s={}) value error", namespace, tag, e);
        }
    });
    String rawValue = value.get(3, TimeUnit.SECONDS);
    log.debug("end read point(ns={};s={}) value: {}", namespace, tag, rawValue);
    return rawValue;
}

Example 19 with OpcUaClient

use of org.eclipse.milo.opcua.sdk.client.OpcUaClient in project JBM by numen06.

the class OpcUaTemplate method addClient.

/**
 * tianjia
 *
 * @param opcUaClientBean
 */
public synchronized void addClient(OpcUaClientBean opcUaClientBean) {
    OpcUaClient opcUaClient = this.getOpcUaClient(opcUaClientBean.getDeviceId(), opcUaClientBean.getOpcUaSource());
    opcUaClientBean.setOpcUaClient(opcUaClient);
    this.clientMap.put(opcUaClientBean.getDeviceId(), opcUaClientBean);
    opcUaClient.getSubscriptionManager().addSubscriptionListener(new GuardSubscriptionListener(this, opcUaClientBean));
// this.loadPoints(opcUaClientBean.getOpcUaSource());
}

Example 20 with OpcUaClient

use of org.eclipse.milo.opcua.sdk.client.OpcUaClient in project JBM by numen06.

the class OpcClientTest method testClient.

@Test
public void testClient() throws Exception {
    // String value = this.opcUaTemplate.readItem("test", "Int32");
    OpcUaClient client = this.opcUaTemplate.getOpcUaClient("test");
    // System.out.println(value);
    client.connect().get();
    List<ReferenceDescription> nodes = client.getAddressSpace().browse(Identifiers.RootFolder);
    while (true) {
        // }
        try {
            System.out.println(this.opcUaTemplate.getOpcUaClient("test").getSession().get().getSessionName());
        } catch (Exception e) {
            System.out.println(e);
        }
        ThreadUtil.safeSleep(2000);
    }
}