Examples with BrowseContext org.eclipse.milo.opcua.sdk.server.api.services.ViewServices.BrowseContext used on opensource projects

Example 1 with BrowseContext

use of org.eclipse.milo.opcua.sdk.server.api.services.ViewServices.BrowseContext in project milo by eclipse.

the class BrowsePathsHelper method target.

private CompletableFuture<List<ExpandedNodeId>> target(NodeId nodeId, RelativePathElement element) {
    NodeId referenceTypeId = element.getReferenceTypeId();
    boolean includeSubtypes = element.getIncludeSubtypes();
    QualifiedName targetName = element.getTargetName();
    if (targetName.isNull()) {
        return failedUaFuture(StatusCodes.Bad_BrowseNameInvalid);
    }
    BrowseContext browseContext = new BrowseContext(server, context.getSession().orElse(null));
    server.getAddressSpaceManager().browse(browseContext, nodeId);
    CompletableFuture<List<Reference>> future = browseContext.getFuture();
    return future.thenCompose(references -> {
        List<ExpandedNodeId> targetNodeIds = references.stream().filter(r -> referenceTypeId.isNull() || r.getReferenceTypeId().equals(referenceTypeId) || (includeSubtypes && r.subtypeOf(referenceTypeId, server.getReferenceTypes()))).filter(r -> r.isInverse() == element.getIsInverse()).map(Reference::getTargetNodeId).collect(toList());
        if (targetNodeIds.isEmpty()) {
            return failedUaFuture(StatusCodes.Bad_NoMatch);
        } else {
            return readTargetBrowseNames(targetNodeIds).thenApply(browseNames -> {
                List<ExpandedNodeId> targets = newArrayList();
                for (int i = 0; i < targetNodeIds.size(); i++) {
                    ExpandedNodeId targetNodeId = targetNodeIds.get(i);
                    QualifiedName browseName = browseNames.get(i);
                    if (matchesTarget(browseName, targetName)) {
                        targets.add(targetNodeId);
                    }
                }
                return targets;
            });
        }
    });
}

Example 2 with BrowseContext

use of org.eclipse.milo.opcua.sdk.server.api.services.ViewServices.BrowseContext in project milo by eclipse.

the class BrowsePathsHelper method next.

private CompletableFuture<ExpandedNodeId> next(NodeId nodeId, RelativePathElement element) {
    NodeId referenceTypeId = element.getReferenceTypeId();
    boolean includeSubtypes = element.getIncludeSubtypes();
    QualifiedName targetName = element.getTargetName();
    if (targetName.isNull()) {
        return failedUaFuture(StatusCodes.Bad_BrowseNameInvalid);
    }
    BrowseContext browseContext = new BrowseContext(server, context.getSession().orElse(null));
    server.getAddressSpaceManager().browse(browseContext, nodeId);
    CompletableFuture<List<Reference>> future = browseContext.getFuture();
    return future.thenCompose(references -> {
        List<ExpandedNodeId> targetNodeIds = references.stream().filter(r -> referenceTypeId.isNull() || r.getReferenceTypeId().equals(referenceTypeId) || (includeSubtypes && r.subtypeOf(referenceTypeId, server.getReferenceTypes()))).filter(r -> r.isInverse() == element.getIsInverse()).map(Reference::getTargetNodeId).collect(toList());
        if (targetNodeIds.isEmpty()) {
            return failedUaFuture(StatusCodes.Bad_NoMatch);
        } else {
            return readTargetBrowseNames(targetNodeIds).thenApply(browseNames -> {
                for (int i = 0; i < targetNodeIds.size(); i++) {
                    ExpandedNodeId targetNodeId = targetNodeIds.get(i);
                    QualifiedName browseName = browseNames.get(i);
                    if (browseName.equals(targetName)) {
                        return targetNodeId;
                    }
                }
                return ExpandedNodeId.NULL_VALUE;
            });
        }
    });
}