private void RunVariousExamples()
{
IEnumerable <PageComponent> pageComponents = DemoCollections.GetPageComponents();
//group by type
IEnumerable <IGrouping <string, PageComponent> > groupByTypeBasic = pageComponents.GroupBy(g => g.Type);
foreach (var group in groupByTypeBasic)
{
/*
* Console.WriteLine($"Element type: {group.Key}, items in group: {group.Count()}, total size: {group.Sum(g => g.SizeBytes)}");
* Console.WriteLine("============================");
* foreach (PageComponent pc in group)
* {
* Console.WriteLine($"Element name: {pc.Name}");
* }
* Console.WriteLine("============================");
* Console.WriteLine();
*/
}
//group by extension
IEnumerable <IGrouping <string, PageComponent> > groupByExtensionBasic = pageComponents.GroupBy(g => g.Extension);
foreach (var group in groupByExtensionBasic)
{
/*
* Console.WriteLine($"Extension: {group.Key}");
* Console.WriteLine("============================");
* foreach (PageComponent pc in group)
* {
* Console.WriteLine($"Element name: {pc.Name}");
* }
* Console.WriteLine("============================");
* Console.WriteLine();
*/
}
var groupByComponentSizeRange = pageComponents.GroupBy(pe =>
{
int groupSize = 10000;
int lowerBound = pe.SizeBytes - pe.SizeBytes % groupSize;
int upperBound = lowerBound + groupSize;
return(new PageComponentSizeGrouper()
{
LowerBound = lowerBound, UpperBound = upperBound
});
}, new PageComponentSizeGrouperEqualityComparer());
foreach (var group in groupByComponentSizeRange.OrderBy(g => g.Key.LowerBound))
{
/*
* Console.WriteLine($"Size range: {group.Key.ToString()}, items in group: {group.Count()}");
* Console.WriteLine("============================");
* foreach (PageComponent pc in group)
* {
* Console.WriteLine($"Element name: {pc.Name}");
* }
* Console.WriteLine("============================");
* Console.WriteLine();
*/
}
var duplicatesFinder = pageComponents.GroupBy(pe => pe, new PageElementEqualityComparer());
foreach (var group in duplicatesFinder)
{
//Console.WriteLine($"Element name: {group.Key.Name}, occurrence: {group.Count()}");
}
var groupByTypeWithElementSelector = pageComponents.GroupBy(
pe => pe.Type,
pe =>
new { NameCapitals = pe.Name.ToUpper(), ShortName = pe.Name.Substring(0, 5), CharCount = pe.Name.Count() });
foreach (var group in groupByTypeWithElementSelector)
{
/*
* Console.WriteLine($"Element type: {group.Key}");
* Console.WriteLine("============================");
* foreach (var pc in group)
* {
* Console.WriteLine($"Element name capitals: {pc.NameCapitals}, short name: {pc.ShortName}, chars: {pc.CharCount}");
* }
* Console.WriteLine("============================");
* Console.WriteLine();
*/
}
var groupByComponentSizeWithResultSelector = pageComponents.GroupBy(pe =>
{
int groupSize = 10000;
int lowerBound = pe.SizeBytes - pe.SizeBytes % groupSize;
int upperBound = lowerBound + groupSize;
return(new PageComponentSizeGrouper()
{
LowerBound = lowerBound, UpperBound = upperBound
});
},
(sizeGroup, pageElements) =>
new
{
ElementCountInGroup = pageElements.Count(),
MinElementSize = pageElements.Min(pe => pe.SizeBytes),
MaxElementSize = pageElements.Max(pe => pe.SizeBytes),
GroupingKeyOrderer = sizeGroup.LowerBound,
GroupingKeyToString = sizeGroup.ToString()
}
, new PageComponentSizeGrouperEqualityComparer());
foreach (var group in groupByComponentSizeWithResultSelector.OrderBy(g => g.GroupingKeyOrderer))
{
/*
* Console.WriteLine($"Size range: {group.GroupingKeyToString}");
* Console.WriteLine($"Item count in group: { group.ElementCountInGroup}");
* Console.WriteLine($"Min element size: {group.MinElementSize}");
* Console.WriteLine($"Max element size: {group.MaxElementSize}");
* Console.WriteLine("============================");
* Console.WriteLine();
*/
}
var groupByComponentSizeWithResultAndElementSelector = pageComponents.GroupBy(pe =>
{
int groupSize = 10000;
int lowerBound = pe.SizeBytes - pe.SizeBytes % groupSize;
int upperBound = lowerBound + groupSize;
return(new PageComponentSizeGrouper()
{
LowerBound = lowerBound, UpperBound = upperBound
});
}, pe =>
new
{
ElementName = pe.Name,
ModifiedSize = pe.SizeBytes - 1000
},
(sizeGroup, pageElements) =>
{
int minElementSize = pageElements.Min(pe => pe.ModifiedSize);
int maxElementSize = pageElements.Max(pe => pe.ModifiedSize);
string minElementName = (from pe in pageElements where pe.ModifiedSize == minElementSize select pe.ElementName).FirstOrDefault();
string maxElementName = (from pe in pageElements where pe.ModifiedSize == maxElementSize select pe.ElementName).FirstOrDefault();
return(new
{
ElementCountInGroup = pageElements.Count(),
MinElementSize = minElementSize,
MaxElementSize = maxElementSize,
MinElementName = minElementName,
MaxElementName = maxElementName,
GroupingKeyOrderer = sizeGroup.LowerBound,
GroupingKeyToString = sizeGroup.ToString()
});
}
, new PageComponentSizeGrouperEqualityComparer());
foreach (var group in groupByComponentSizeWithResultAndElementSelector.OrderBy(g => g.GroupingKeyOrderer))
{
Console.WriteLine($"Size range: {group.GroupingKeyToString}");
Console.WriteLine($"Item count in group: { group.ElementCountInGroup}");
Console.WriteLine($"Min element size: {group.MinElementSize}");
Console.WriteLine($"Max element size: {group.MaxElementSize}");
Console.WriteLine($"Min element name: {group.MinElementName}");
Console.WriteLine($"Max element name: {group.MaxElementName}");
Console.WriteLine("============================");
Console.WriteLine();
}
}