有沒有辦法通過vSphere API執行批處理？

Question

我正在使用vSphere API檢索vCenter中的所有虛擬機。但是，我沒有發現任何官方文檔或代碼示例提及批處理/分頁請求。我的代碼如下：

 VimClient client = new VimClient(); 
     client.Connect(host, CommunicationProtocol.Https, 443); 
     client.Login(userName, password); 
     IList<EntityViewBase> vms = client.FindEntityViews(typeof(VirtualMachine), null, null, null); 

我檢查了由ReSharper反編譯的源代碼。有趣的是，有一個可爲空的參數「beginEntity」;但是沒有辦法指定要檢索的實體的數量。他們是否完全沒有希望支持批次？

public List<EntityViewBase> FindEntityViews(Type viewType, ManagedObjectReference beginEntity, NameValueCollection filter, string[] properties) 
{ 
    IList<ViewBase> viewBaseList = (IList<ViewBase>) null; 
    ManagedObjectReference beginEntity1 = beginEntity ?? this._serviceContent.RootFolder; 
    string[] strArray = (string[]) null; 
    if (filter != null && filter.Count > 0) 
    { 
    string[] propertyList = new string[filter.Count]; 
    filter.AllKeys.CopyTo((Array) propertyList, 0); 
    strArray = VimClient.ValidatePropertyPathList(viewType, propertyList); 
    } 
    ObjectContent[] objectContentArray = new PropertyCollector(this, this._serviceContent.PropertyCollector).RetrieveProperties(new PropertyFilterSpec[1] 
    { 
    EntityViewBase.GetSearchFilterSpec(this, beginEntity1, new PropertySpec() 
    { 
     All = new bool?(false), 
     Type = viewType.Name, 
     PathSet = strArray 
    }) 
    }); 
    List<ManagedObjectReference> managedObjectReferenceList = new List<ManagedObjectReference>(); 
    if (objectContentArray != null) 
    { 
    foreach (ObjectContent objectContent in objectContentArray) 
    { 
     if (beginEntity == null || !objectContent.Obj.Value.Equals(beginEntity.Value) || !objectContent.Obj.Type.Equals(beginEntity.Type)) 
     { 
     if (filter != null && filter.Count > 0) 
     { 
      DynamicProperty[] propSet = objectContent.PropSet; 
      if (propSet != null) 
      { 
      Dictionary<string, object> dictionary = new Dictionary<string, object>(); 
      foreach (DynamicProperty dynamicProperty in propSet) 
       dictionary.Add(dynamicProperty.Name, dynamicProperty.Val); 
      if (dictionary.Count > 0 && VimClient.MatchProperyList(filter, viewType, (IDictionary<string, object>) dictionary)) 
       managedObjectReferenceList.Add(objectContent.Obj); 
      } 
     } 
     else 
      managedObjectReferenceList.Add(objectContent.Obj); 
     } 
    } 
    } 
    if (managedObjectReferenceList.Count > 0) 
    viewBaseList = (IList<ViewBase>) this.GetViewsByMorefs((IEnumerable<ManagedObjectReference>) managedObjectReferenceList, properties); 
    List<EntityViewBase> entityViewBaseList = (List<EntityViewBase>) null; 
    if (viewBaseList != null) 
    { 
    entityViewBaseList = new List<EntityViewBase>(); 
    foreach (ViewBase viewBase in (IEnumerable<ViewBase>) viewBaseList) 
    { 
     EntityViewBase entityViewBase = viewBase as EntityViewBase; 
     entityViewBaseList.Add(entityViewBase); 
    } 
    } 
    return entityViewBaseList; 
} 


public List<ViewBase> GetViewsByMorefs(IEnumerable<ManagedObjectReference> moRefs, params string[] properties) 
{ 
    Dictionary<string, PropertyFilterSpec> propertyFilterSpecList = new Dictionary<string, PropertyFilterSpec>(); 
    foreach (ManagedObjectReference moRef in moRefs) 
    { 
    if (propertyFilterSpecList.ContainsKey(moRef.Type.ToLower())) 
    { 
     PropertyFilterSpec propertyFilterSpec = propertyFilterSpecList[moRef.Type.ToLower()]; 
     propertyFilterSpec.ObjectSet = new List<ObjectSpec>((IEnumerable<ObjectSpec>) propertyFilterSpec.ObjectSet) 
     { 
     new ObjectSpec() { Obj = moRef } 
     }.ToArray(); 
    } 
    else 
    { 
     PropertyFilterSpec resultPropertyFilterSpec; 
     Dictionary<string, List<string>> currentAllowedPropertyPath; 
     DynamicPropertyFilterSpecGenerator.Generate(moRef, properties, out resultPropertyFilterSpec, out currentAllowedPropertyPath); 
     propertyFilterSpecList.Add(moRef.Type.ToLower(), resultPropertyFilterSpec); 
    } 
    } 
    PropertyFilterSpec[] propertyFilterSpecArray = new PropertyFilterSpec[propertyFilterSpecList.Values.Count]; 
    propertyFilterSpecList.Values.CopyTo(propertyFilterSpecArray, 0); 
    ObjectContent[] objectContent = new PropertyCollector(this, this._serviceContent.PropertyCollector).RetrieveProperties(propertyFilterSpecArray); 
    List<ViewBase> viewsByMorefs = this.GetViewsByMorefs(moRefs, objectContent, propertyFilterSpecList); 
    return viewsByMorefs; 
} 

private List<ViewBase> GetViewsByMorefs(IEnumerable<ManagedObjectReference> moRefs, ObjectContent[] objectContent, Dictionary<string, PropertyFilterSpec> propertyFilterSpecList) 
{ 
    List<ViewBase> viewBaseList = new List<ViewBase>(); 
    List<string> stringList = new List<string>(); 
    foreach (ManagedObjectReference moRef in moRefs) 
    stringList.Add(moRef.Value); 
    Dictionary<string, ObjectContent> objectContentList = new Dictionary<string, ObjectContent>(); 
    foreach (ObjectContent objectContent1 in objectContent) 
    objectContentList.Add(objectContent1.Obj.Value, objectContent1); 
    Dictionary<string, ViewBase> generatedManagedObjectList = new Dictionary<string, ViewBase>(); 
    foreach (ObjectContent objectContent1 in objectContent) 
    { 
    if (stringList.Contains(objectContent1.Obj.Value)) 
    { 
     ConstructorInfo constructor = ViewBase.GetViewType(objectContent1.Obj.Type).GetConstructor(new Type[2] 
     { 
     typeof (VimClient), 
     typeof (ManagedObjectReference) 
     }); 
     if (constructor != null) 
     { 
     ViewBase currentObject = (ViewBase) constructor.Invoke(new object[2] 
     { 
      (object) this, 
      (object) objectContent1.Obj 
     }); 
     ViewBase.SetViewData(currentObject, (string) null, (Dictionary<string, List<string>>) null, objectContentList, generatedManagedObjectList); 
     viewBaseList.Add(currentObject); 
     } 
    } 
    } 
    return viewBaseList; 
} 

Answer 1

我不知道一個直接的方法來實現這一點。

但是，您發佈的第二個代碼段（反編譯的FindEntityViews）顯示了使用VMware Property Collector的方法retrieveProperties。如果您使用retrievePropertiesEx，那麼您可以提供最大計數，然後致電continueRetrievePropertiesEx。

請注意，根據我的經驗，vSphere API非常強大，除非擁有數千個虛擬機，否則您可能會發現不需要分頁（除非您有其他注意事項）。