在Autodesk Vault 2014中使用VDF（Vault Development Framework） API获取所有文件的属性信息

这几天在玩儿Vault API， 从Autodesk Vault 2014开始提供了Vault Development Framework（VDF） API，让开发工作更简单了。在Vault 2013里面可以使用PropertyService 来获取属性（包括属性定义和属性至），在Vault 2014中的VDF API里，我们可以通过PropertyManager来获取。下面代码演示了如何登录到Vault并取得PropertyManager:

前面的文章提到了使用VDF内置的登录对话框登录非常简单，如果你不用使用那个登录框，也可以自己做界面，使用下面的无界面的登录方式：

////login with UI
//VDF.Vault.Currency.Connections.Connection connection = VDF.Vault.Forms.Library.Login(new VDF.Vault.Forms.Settings.LoginSettings());
 
//Another way to log into Vault without UI
VDF.Vault.Results.LogInResult results =
		VDF.Vault.Library.ConnectionManager.LogIn(
				"localhost", "Vault", "Administrator", "",
				VDF.Vault.Currency.Connections.AuthenticationFlags.Standard, null);
if (!results.Success)
{
	Console.WriteLine("Login failed. exit...");
	Console.ReadLine();
	return;
}
 
VDF.Vault.Currency.Connections.Connection connection = results.Connection;
 
VDF.Vault.Services.Connection.IPropertyManager propMgr = connection.PropertyManager;

这个例子中，我要递归的获取Vault中所有的目录和文件，看到这几个字，我首先想到的就是用FileManager和FolderManager，不过这两个家伙对于获取文件本身，比如checkout并下载等工作来说很好用，我其实只要获取FileInteration进而获取他们的属性，所有FileManager和FolderManager并不是好办法。同事提醒我可以用IEntityOperationManager。 Folder和File等都是Entity，对于这些Entity的操作还有一个更底层的IEntityOperationManager， 其实FileManger和FolderManager也是调用的IEntityOperationManager。通过IEntityOperationManager的GetBrowseChildren方法就可以获取指定entity的所有子实体，就可以实现递归获取所有文件了。

好了，下面是代码：

using Autodesk.Connectivity.WebServices;
using System;
using System.Collections.Generic;
using System.Linq;
using VDF = Autodesk.DataManagement.Client.Framework;
 
namespace VaultLabs
{
  class Lab03
  {
    // We will collect Property Definitions here
    static VDF.Vault.Currency.Properties.PropertyDefinitionDictionary propDefs;
 
    // The entry point of the program
    //==========================================================================
    static void Main(string[] args)
    {
      try
      {
 
        ////login with UI
        //VDF.Vault.Currency.Connections.Connection connection 
          = VDF.Vault.Forms.Library.Login(new VDF.Vault.Forms.Settings.LoginSettings());
 
        //Another way to log into Vault without UI
        VDF.Vault.Results.LogInResult results =
            VDF.Vault.Library.ConnectionManager.LogIn(
                "localhost", "Vault", "Administrator", "",
                VDF.Vault.Currency.Connections.AuthenticationFlags.Standard, null);
        if (!results.Success)
        {
          Console.WriteLine("Login failed. exit...");
          Console.ReadLine();
          return;
        }
 
        VDF.Vault.Currency.Connections.Connection connection = results.Connection;
 
 
        if (connection.IsConnected)
        {
          ReadProperties(connection);
 
          VDF.Vault.Currency.Entities.Folder folder = connection.FolderManager.RootFolder;
 
          PrintChildren(connection, folder);
 
 
 
          Console.ResetColor();
          Console.WriteLine("");
          Console.WriteLine("Press any key to exit...");
          Console.ReadKey();
        }
 
 
 
      }
      catch (Exception ex)
      {
        Console.WriteLine("ERROR: {0}", ex.Message);
      }
    } // Main()
 
 
    // Read all the Property Definitions for the "FILE" Entity Class
    //===============================================================================
    static void ReadProperties(VDF.Vault.Currency.Connections.Connection connection)
    {
      propDefs =
        connection.PropertyManager.GetPropertyDefinitions(
          VDF.Vault.Currency.Entities.EntityClassIds.Files,
          null,
          VDF.Vault.Currency.Properties.PropertyDefinitionFilter.IncludeUserDefined
        );
 
 
    }
 
 
    // Output information about each file in a folder along with its properties
    //===========================================================================
    static void PrintChildren(VDF.Vault.Currency.Connections.Connection connection,
          VDF.Vault.Currency.Entities.Folder parentFolder)
    {
      Console.ForegroundColor = ConsoleColor.Cyan;
      Console.WriteLine("{0}", parentFolder.FullName);
 
 
      IEnumerable<VDF.Vault.Currency.Entities.IEntity> entities = connection
        .EntityOperations.GetBrowseChildren(parentFolder);
      if (entities != null && entities.Count<VDF.Vault.Currency.Entities.IEntity>() > 0)
      {
        foreach (var ent in entities)
        {
          if (ent is VDF.Vault.Currency.Entities.FileIteration)
          {
            VDF.Vault.Currency.Entities.FileIteration fileIteration
              = ent as VDF.Vault.Currency.Entities.FileIteration;
 
            Console.ForegroundColor = ConsoleColor.Green;
            Console.WriteLine(" {0}", fileIteration.EntityName);
            Console.ForegroundColor = ConsoleColor.Yellow;
 
            //Now print the properties of the file
            PrintProperties(connection, fileIteration);
 
 
          }
          else if (ent is VDF.Vault.Currency.Entities.Folder)
          {
            // Recursively print info about subfolders and files in them
            //-------------------------------------------------------------------------
 
            VDF.Vault.Currency.Entities.Folder folder
              = ent as VDF.Vault.Currency.Entities.Folder;
            PrintChildren(connection, folder);
 
          }
        }
      }
 
    }
 
 
    static void PrintProperties(VDF.Vault.Currency.Connections.Connection connection,
                      VDF.Vault.Currency.Entities.FileIteration fileInteration)
    {
      foreach (var key in propDefs.Keys)
      {
        // Print the Name from the Definition and the Value from the Property
        object propValue = connection.PropertyManager.GetPropertyValue(
                  fileInteration, propDefs[key], null);
        Console.WriteLine("  '{0}' = '{1}'",
                        key.ToString(),
                        propValue == null ? "" : propValue.ToString());
      }
    }
 
 
  } // class Lab03
 
} // namespace VaultLabs