2.4 Hello World Example

//-----------------------------------------------------------------------------
// This example demonstrates how to acquire data, export to .csv and what
// steps are needed to achieve this with the ProcessDataAnalyzer API.
// The application will connect to the first available device, acquire
// three seconds worth of default configured data and save it to the
// ProcessDataAnalyzer's default installation folder from where the
// .csv file will be opened with the PCs current default program for .csv.
//-----------------------------------------------------------------------------

using RAYLASE.PDA.API;
using RAYLASE.PDA.ClientLib;
using System.Diagnostics;

public class Program
{
    public static int Main( string[] args )
    {
        Console.WriteLine( "\n\nStandalone API sample\n------------------\n\n" );

        // Default installation path of the ProcessDataAnalyzer.Service.exe
        var defaultServiceExePath = @$"{Environment.ExpandEnvironmentVariables( "%ProgramFiles%" )}\RAYLASE\ProcessDataAnalyzer\bin\ProcessDataAnalyzer.Service.exe";

        // Check if a different path was specified in the arguments.
        var serviceExePath = args.Length <= 1 ? defaultServiceExePath : args[1];

        // Use the API - this implicitly starts the service.exe and connects a client to it.
        // If your default service.exe location is changed, you can supply the path to the API call here.
        // When running the program, two windows will appear. One will log the server state, the other is this process.
        using ( var api = new Api( serviceExePath ) )
        {
            // The card could be set by IP or serial number
            var suggestedCard = args[0];
            if ( !string.IsNullOrEmpty( suggestedCard ) )
            {
                Console.WriteLine( $"Connecting to card {suggestedCard} given as argument" );
            }
            else // Discover all available cards if no IP or serial number is given as argument
            {
                Console.WriteLine( "Discovering available cards" );
                var cards = api.Acquisition.Discover();

                if ( cards.Count == 0 )
                {
                    Console.WriteLine( "No cards found, please check your card configuration and network setup." );
                    return -1;
                }
                else
                    Console.WriteLine( $"Found {cards.Count} cards" );

                suggestedCard = cards[0].SuggestedIp;
                Console.WriteLine( $"Connecting to first card with suggested IP {suggestedCard}" );
            }

            // Connect the card (to the service)
            api.Acquisition.Connect( suggestedCard );

            Console.WriteLine( "Starting acquisition (blocking until timeout reached)" );
            var acquisitionReply = api.Acquisition.Start( new AcquisitionStartRequest { AutoStopSeconds = 3, WaitForStop = true } );

            // Some commands return a status in their reply which can transport a "soft" error without throwing.
            // In case of the Acquisition, if ADC signals are configured and the license can not be found,
            // The ADC signals will be excluded from acquisition and a warning is returned.
            // It might be a good idea to check the status code if available:
            if ( acquisitionReply.Status.Code != RAYLASE.PDA.API.Error.StatusCode.Ok )
            {
                Console.WriteLine( $"Acquisition encountered an error: {acquisitionReply.Status}" );
                return -1;
            }

            // Export the acquired 3 seconds to a .csv file to load into an excel table.
            // Please note that this path is as seen from the service.exe. If you set a relative path, it will
            // be relative to the PDA installations bin folder.
            Console.WriteLine( "Exporting acquired data to .csv" );
            var serviceRelativeExportPath = @"..\StandaloneAPI_Export.csv";
            api.Acquisition.Export( new( serviceRelativeExportPath, useDecimalPoint: true ) );

            //// Now you could open the file with Excel (or the default .csv reader on the system)
            // var openPath = Path.Combine( new FileInfo( serviceExePath ).Directory.FullName, serviceRelativeExportPath );
            // Process.Start( openPath );
        } // Leaving this scope discards the API, which also discards the service. All connected devices and current states are lost.

        return 0;
    }
}