Examples with BrowseResult org.eclipse.milo.opcua.stack.core.types.structured.BrowseResult used on opensource projects

Example 1 with BrowseResult

use of org.eclipse.milo.opcua.stack.core.types.structured.BrowseResult in project milo by eclipse.

the class DataTypeDictionaryReader method browseNextAsync.

private CompletableFuture<List<ReferenceDescription>> browseNextAsync(ByteString continuationPoint, List<ReferenceDescription> references) {
    RequestHeader requestHeader = stackClient.newRequestHeader(session.getAuthenticationToken(), stackClient.getConfig().getRequestTimeout());
    BrowseNextRequest request = new BrowseNextRequest(requestHeader, false, new ByteString[] { continuationPoint });
    return stackClient.sendRequest(request).thenApply(BrowseNextResponse.class::cast).thenCompose(response -> {
        BrowseResult result = l(response.getResults()).get(0);
        return maybeBrowseNext(result, references);
    });
}

Example 2 with BrowseResult

use of org.eclipse.milo.opcua.stack.core.types.structured.BrowseResult in project milo by eclipse.

the class UaNode method getComponentAsync.

protected CompletableFuture<? extends UaNode> getComponentAsync(QualifiedName browseName, NodeClass nodeClass) {
    UInteger nodeClassMask = uint(nodeClass.getValue());
    UInteger resultMask = uint(BrowseResultMask.All.getValue());
    CompletableFuture<BrowseResult> future = client.browse(new BrowseDescription(getNodeId(), BrowseDirection.Forward, Identifiers.HasComponent, false, nodeClassMask, resultMask));
    return future.thenCompose(result -> {
        List<ReferenceDescription> references = l(result.getReferences());
        Optional<CompletableFuture<? extends UaNode>> node = references.stream().filter(r -> browseName.equals(r.getBrowseName())).flatMap(r -> {
            Optional<CompletableFuture<? extends UaNode>> opt = r.getNodeId().toNodeId(client.getNamespaceTable()).map(id -> client.getAddressSpace().getNodeAsync(id));
            return opt2stream(opt);
        }).findFirst();
        return node.orElse(failedUaFuture(StatusCodes.Bad_NotFound));
    });
}

Example 3 with BrowseResult

use of org.eclipse.milo.opcua.stack.core.types.structured.BrowseResult in project milo by eclipse.

the class BrowseHelper method browse.

public static CompletableFuture<List<ReferenceDescription>> browse(UaStackClient client, OpcUaSession session, BrowseDescription browseDescription, UInteger maxReferencesPerNode) {
    BrowseRequest browseRequest = new BrowseRequest(client.newRequestHeader(session.getAuthenticationToken(), client.getConfig().getRequestTimeout()), new ViewDescription(NodeId.NULL_VALUE, DateTime.MIN_VALUE, uint(0)), maxReferencesPerNode, new BrowseDescription[] { browseDescription });
    return client.sendRequest(browseRequest).thenApply(BrowseResponse.class::cast).thenCompose(response -> {
        BrowseResult result = response.getResults()[0];
        List<ReferenceDescription> references = Collections.synchronizedList(new ArrayList<>());
        return maybeBrowseNext(client, session, references, result);
    });
}

Example 4 with BrowseResult

use of org.eclipse.milo.opcua.stack.core.types.structured.BrowseResult in project milo by eclipse.

the class DefaultViewServiceSet method onBrowse.

@Override
public void onBrowse(ServiceRequest service) {
    browseCounter.record(service);
    BrowseRequest request = (BrowseRequest) service.getRequest();
    DiagnosticsContext<BrowseDescription> diagnosticsContext = new DiagnosticsContext<>();
    OpcUaServer server = service.attr(ServiceAttributes.SERVER_KEY).get();
    Session session = service.attr(ServiceAttributes.SESSION_KEY).get();
    List<BrowseDescription> nodesToBrowse = l(request.getNodesToBrowse());
    if (nodesToBrowse.isEmpty()) {
        service.setServiceFault(StatusCodes.Bad_NothingToDo);
        return;
    }
    if (nodesToBrowse.size() > server.getConfig().getLimits().getMaxNodesPerBrowse().intValue()) {
        service.setServiceFault(StatusCodes.Bad_TooManyOperations);
        return;
    }
    Stream<CompletableFuture<BrowseResult>> futures = nodesToBrowse.stream().map(browseDescription -> browseHelper.browse(() -> Optional.of(session), server, request.getView(), request.getRequestedMaxReferencesPerNode(), browseDescription));
    FutureUtils.sequence(futures).thenAccept(results -> {
        ResponseHeader header = service.createResponseHeader();
        DiagnosticInfo[] diagnosticInfos = diagnosticsContext.getDiagnosticInfos(nodesToBrowse);
        BrowseResponse response = new BrowseResponse(header, a(results, BrowseResult.class), diagnosticInfos);
        service.setResponse(response);
    });
}

Example 5 with BrowseResult

use of org.eclipse.milo.opcua.stack.core.types.structured.BrowseResult in project milo by eclipse.

the class UaNode method getPropertyNodeAsync.

protected CompletableFuture<PropertyTypeNode> getPropertyNodeAsync(QualifiedName browseName) {
    UInteger nodeClassMask = uint(NodeClass.Variable.getValue());
    UInteger resultMask = uint(BrowseResultMask.BrowseName.getValue());
    CompletableFuture<BrowseResult> future = client.browse(new BrowseDescription(getNodeId(), BrowseDirection.Forward, Identifiers.HasProperty, false, nodeClassMask, resultMask));
    return future.thenCompose(result -> {
        List<ReferenceDescription> references = l(result.getReferences());
        Optional<CompletableFuture<PropertyTypeNode>> node = references.stream().filter(r -> browseName.equals(r.getBrowseName())).flatMap(r -> {
            Optional<CompletableFuture<PropertyTypeNode>> opt = r.getNodeId().toNodeId(client.getNamespaceTable()).map(id -> client.getAddressSpace().getNodeAsync(id).thenApply(n -> (PropertyTypeNode) n));
            return opt2stream(opt);
        }).findFirst();
        return node.orElse(failedUaFuture(StatusCodes.Bad_NotFound));
    });
}