private static View CopyChildView(GroupByView groupView, String[] propertyNames, Object groupByValues, AgentInstanceViewFactoryChainContext agentInstanceContext, View originalChildView)
{
if (originalChildView is MergeView)
{
const string message = "Unexpected merge view as child of group-by view";
Log.Error(".copySubViews " + message);
throw new EPException(message);
}
if (!(originalChildView is CloneableView))
{
throw new EPException("Unexpected error copying subview " + originalChildView.GetType().FullName);
}
var cloneableView = (CloneableView)originalChildView;
// Copy child node
var copyChildView = cloneableView.CloneView();
copyChildView.Parent = groupView;
// Make the sub views for child copying from the original to the child
CopySubViews(groupView.CriteriaExpressions, propertyNames, groupByValues, originalChildView, copyChildView,
agentInstanceContext);
return(copyChildView);
}
/// <summary>
/// Instantiate subviews for the given group view and the given key value to group-by. Makes shallow
/// copies of each child view and its subviews up to the merge point. Sets up merge data views for
/// merging the group-by key value back in.
/// </summary>
/// <param name="groupView">is the parent view for which to copy subviews for</param>
/// <param name="propertyNames">names of expressions or properties</param>
/// <param name="groupByValues">is the key values to group-by</param>
/// <param name="agentInstanceContext">is the view services that sub-views may need</param>
/// <returns>
/// a single view or a list of views that are copies of the original list, with copied children, withdata merge views added to the copied child leaf views.
/// </returns>
public static Object MakeSubViews(
GroupByView groupView,
String[] propertyNames,
Object groupByValues,
AgentInstanceViewFactoryChainContext agentInstanceContext)
{
if (!groupView.HasViews)
{
const string message = "Unexpected empty list of child nodes for group view";
Log.Error(".copySubViews " + message);
throw new EPException(message);
}
Object subviewHolder;
if (groupView.Views.Length == 1)
{
subviewHolder = CopyChildView(groupView, propertyNames, groupByValues, agentInstanceContext, groupView.Views[0]);
}
else
{
// For each child node
var subViewList = new List <View>(4);
subviewHolder = subViewList;
foreach (var originalChildView in groupView.Views)
{
var copyChildView = CopyChildView(groupView, propertyNames, groupByValues, agentInstanceContext, originalChildView);
subViewList.Add(copyChildView);
}
}
return(subviewHolder);
}
protected internal static View MakeSubView(
GroupByView view,
object groupKey)
{
var agentInstanceContext = view.AgentInstanceContext;
var mergeView = view.MergeView;
var factories = view.ViewFactory.Groupeds;
View first = factories[0].MakeView(agentInstanceContext);
first.Parent = view;
var currentParent = first;
for (var i = 1; i < factories.Length; i++) {
View next = factories[i].MakeView(agentInstanceContext);
next.Parent = currentParent;
currentParent.Child = next;
currentParent = next;
}
if (view.ViewFactory.IsAddingProperties) {
var adder = new AddPropertyValueOptionalView(view.ViewFactory, agentInstanceContext, groupKey);
currentParent.Child = adder;
adder.Parent = currentParent;
adder.Child = mergeView;
mergeView.AddParentView(adder);
}
else {
currentParent.Child = mergeView;
mergeView.AddParentView(currentParent);
}
return first;
}
public MergeView(
GroupByView groupByView,
EventType eventType)
{
this.groupByView = groupByView;
EventType = eventType;
parentViews = new List<View>(4);
}
public bool CanReuse(View view, AgentInstanceContext agentInstanceContext)
{
if (!(view is GroupByView))
{
return(false);
}
if (IsReclaimAged)
{
return(false);
}
GroupByView myView = (GroupByView)view;
if (!ExprNodeUtility.DeepEquals(myView.CriteriaExpressions, _criteriaExpressions))
{
return(false);
}
return(true);
}
public void SetUp()
{
_statementContext = SupportStatementContextFactory.MakeContext();
_agentInstanceContext = SupportStatementContextFactory.MakeAgentInstanceViewFactoryContext();
var expressions = SupportExprNodeFactory.MakeIdentNodesMD("Symbol");
_myGroupByView = new GroupByViewImpl(_agentInstanceContext, expressions, ExprNodeUtility.GetEvaluators(expressions));
var childView = new SupportBeanClassView(typeof(SupportMarketDataBean));
var myMergeView = new MergeView(_agentInstanceContext, SupportExprNodeFactory.MakeIdentNodesMD("Symbol"), SupportEventTypeFactory.CreateBeanType(typeof(SupportMarketDataBean)), false);
_ultimateChildView = new SupportBeanClassView(typeof(SupportMarketDataBean));
// This is the view hierarchy
_myGroupByView.AddView(childView);
childView.AddView(myMergeView);
myMergeView.AddView(_ultimateChildView);
SupportBeanClassView.Instances.Clear();
}
public void Bind(Model model, GroupByView groupBy)
{
var currentSelection = GetSelectedObjects();
SuspendLayout();
_isBinding = true;
DataSource = null;
Rows.Clear();
_model = model;
_gridBinding = new List<GridObject>();
List<IGrouping<string, ModelObject>> groupings;
switch (groupBy)
{
case GroupByView.ObjectType:
groupings =
_model.Objects.OrderBy(x => x.Type).ThenBy(x => x.Name).GroupBy(modelObject => modelObject.Type)
.ToList();
break;
case GroupByView.Difference:
groupings =
_model.Objects.OrderBy(x => x.Type).ThenBy(x => x.Name).GroupBy(
modelObject => modelObject.Difference.DisplayValue).ToList();
break;
default:
groupings =
_model.Objects.OrderBy(x => x.Type).ThenBy(x => x.Name).GroupBy(x => "All").ToList();
break;
}
foreach (var grouping in groupings)
{
var group = new GridGroup();
group.HeaderText = string.Format("{0} : {1} objects", grouping.Key, grouping.Count());
group.Collapsed = true;
_gridBinding.Add(group);
foreach (ModelObject modelObject in grouping)
{
var o = modelObject;
var currentValue = currentSelection.FirstOrDefault(x => x.Id == o.Id);
var difference = new GridDifference
{
Include = currentValue == null ? modelObject.Difference.Action != Action.None : currentValue.Include,
Object = modelObject,
SourceName = modelObject.Name,
TargetName = modelObject.Name,
Type = modelObject.Type,
Action = modelObject.Difference.Action.ToString()
};
_gridBinding.Add(difference);
}
}
AutoGenerateColumns = false;
DataSource = _gridBinding;
CollapseExpandAll(true);
_isBinding = false;
ResumeLayout();
}