RevitSdkSamples/SDK/Samples/RoutingPreferenceTools/CS/RoutingPreferenceBuilder/CommandWritePreferences.cs

//
// (C) Copyright 2003-2019 by Autodesk, Inc.
//
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Autodesk.Revit.DB;
using Autodesk.Revit.DB.Plumbing;
using System.Xml.Linq;
using System.IO;
using System.Xml;
using System.Diagnostics;


namespace Revit.SDK.Samples.RoutingPreferenceTools.CS
{
    /// <summary>
    /// A command to read routing preference data from a document and write an XML file summarizing it that can later be read by the
    /// CommandReadPreferences command.
    /// </summary>
    [Autodesk.Revit.Attributes.Transaction(Autodesk.Revit.Attributes.TransactionMode.ReadOnly)]
    public class CommandWritePreferences : Autodesk.Revit.UI.IExternalCommand
    {
        /// <summary>
        /// Implement this method as an external command for Revit.
        /// </summary>
        /// <param name="commandData">An object that is passed to the external application 
        /// which contains data related to the command, 
        /// such as the application object and active view.</param>
        /// <param name="message">A message that can be set by the external application 
        /// which will be displayed if a failure or cancellation is returned by 
        /// the external command.</param>
        /// <param name="elements">A set of elements to which the external application 
        /// can add elements that are to be highlighted in case of failure or cancellation.</param>
        /// <returns>Return the status of the external command. 
        /// A result of Succeeded means that the API external method functioned as expected. 
        /// Cancelled can be used to signify that the user cancelled the external operation 
        /// at some point. Failure should be returned if the application is unable to proceed with 
        /// the operation.</returns>
        public Autodesk.Revit.UI.Result Execute(Autodesk.Revit.UI.ExternalCommandData commandData, ref string message, Autodesk.Revit.DB.ElementSet elements)
        {

            if (!Validation.ValidateMep(commandData.Application.Application))
            {
                Validation.MepWarning();
                return Autodesk.Revit.UI.Result.Succeeded;
            }

            if (!Validation.ValidatePipesDefined(commandData.Application.ActiveUIDocument.Document))
            {
                Validation.PipesDefinedWarning();
                return Autodesk.Revit.UI.Result.Succeeded;
            }

            Microsoft.Win32.SaveFileDialog sfd = new Microsoft.Win32.SaveFileDialog();
            sfd.DefaultExt = ".xml";
            sfd.Filter = "RoutingPreference Builder Xml files (*.xml)|*.xml";
            sfd.FileName = (System.IO.Path.GetFileNameWithoutExtension(commandData.Application.ActiveUIDocument.Document.PathName)) + ".routingPreferences.xml";
            if (sfd.ShowDialog() == true)
            {
                RoutingPreferenceBuilder builder = new RoutingPreferenceBuilder(commandData.Application.ActiveUIDocument.Document);
        	bool pathsNotFound = false;
            XDocument routingPreferenceBuilderDoc = builder.CreateXmlFromAllPipingPolicies(ref pathsNotFound);
            XmlWriterSettings xmlWriterSettings = new XmlWriterSettings();
            xmlWriterSettings.Indent = true;
            xmlWriterSettings.NewLineOnAttributes = false;
            XmlWriter writer = XmlWriter.Create(sfd.FileName, xmlWriterSettings);
            routingPreferenceBuilderDoc.WriteTo(writer);
            writer.Flush();
            writer.Close();
            string pathmessage = "";
            if (pathsNotFound)
               pathmessage = "One or more paths to .rfa files were not found.  You may need to add these paths in manually to the generated xml file.";
            Autodesk.Revit.UI.TaskDialog.Show("RoutingPreferenceBuilder", "Routing Preferences exported successfully.   " + pathmessage);

            }
            return Autodesk.Revit.UI.Result.Succeeded;
        }
    }
}