Last modified on 3 August 2016, at 11:30

Live Value Server (Plugin)

UBIK® Live Value Server Plugins can be injected to UBIK® by using the Injection Management.

Available Live Value Server

Name Since Version Comment
OPCLiveValueServer 2.5 Reads and publishes live values provided by an OPC UA Server
XHQLiveValueServer 2.5 Reads and publishes live values provided by a XHQ Server

Implementation

The plugin must implement the UBIK.Injection.IUBIKLiveValueServer interface and has to be registered for MEF composition by defining the export contract via attributes.

namespace UBIK.Injection
{
    public interface IUBIKLiveValueServer
    {
        /// <summary>
        /// Initializes the opc live value server.
        /// </summary>
        /// <param name="environment">The environment.</param>
        void InitLiveValueServer(UBIKEnvironment environment);

        /// <summary>
        /// Starts the live value server and starts to read data from the 3rd party system
        /// </summary>
        void Startup();
       
        /// <summary>
        /// Stops the live value server.
        /// </summary>
        void Shutdown();
       
        /// <summary>
        /// Tries the get a live value specified by the given data point id.
        /// </summary>
        /// <param name="dataPointID">The data point identifier.</param>
        /// <param name="ILiveValueInformation">The i live value information.</param>
        /// <returns>true as a configured live value was found, false otherwise</returns>
        bool TryGetLiveValue(Guid dataPointID, out ILiveValueInformation value);
       
        /// <summary>
        /// Gets status information of the current live value server
        /// </summary>
        /// <returns>status information</returns>
        ILiveValueServerStatus GetStatus();
    }
}



Example

    [Export(typeof(UBIK.Injection.IUbikPlugin))]
    [ExportMetadata("ID", "4AD25939-C2F3-4E25-88F8-D1143E3D566B")]
    [ExportMetadata("Type", typeof(OPCLiveValueServer))]
    [ExportMetadata("Name", "OPCLiveValueServer")]
    [ExportMetadata("Description", "OPCUA Live Value Server")]
    [ExportMetadata("Version", 1)]
    [ExportMetadata("Company", "Augmensys GmbH")]
    [ExportMetadata("Copyright", "2015, Augmensys GmbH")]
    [ExportMetadata("MinimumKernelVersion", "2.5.0.0")]
    [ExportMetadata("TargetApplication", TargetApplication.UBIK_WebService)]
    public class OPCLiveValueServer : IUBIKLiveValueServer, UBIK.Injection.IUbikPlugin
    {
       ....
    }

See also