Dispenser

Dispenser detects inserts, updates and deletes between previous and new versions of items, enabling easy change-based integrations. A sample using Channels is included.

Features:

• Compare new items with previous version of items
• Extensible hashing

Usage:

• Compare new items with previous version of items:

StockItem[] previousStock = 
{
    new StockItem("Lumber 2x2", 7),
    new StockItem("Lumber 2x4", 5),
    new StockItem("Lumber 2x8", 4),
    new StockItem("Lumber 2x10", 2)
};

StockItem[] actualStock =
{
    new StockItem("Lumber 2x2", 3),
    new StockItem("Lumber 2x3", 6),
    new StockItem("Lumber 2x4", 3),
    new StockItem("Lumber 2x6", 3),
    new StockItem("Lumber 2x8", 4)
};

var hasher = new Sha1Hasher();
var results = new Dispenser<StockItem, string>()
	.Dispense(actualStock.Hash(hasher), previousStock.Hash(hasher), x => x.Sku);

Assert.NotNull(results);
Assert.True(results.HasChanges);
Assert.Contains(new StockItem("Lumber 2x3", 6), results.Inserts);
Assert.Contains(new StockItem("Lumber 2x6", 3), results.Inserts);

Assert.Contains(new StockItem("Lumber 2x2", 3), results.Updates);
Assert.Contains(new StockItem("Lumber 2x4", 3), results.Updates);

Assert.Contains(new StockItem("Lumber 2x10", 2), results.Deletes);

• Extensible hashing:

SHA256 and SHA1 hashing are provided in Dispenser.Hasher.Sha256 and Dispenser.Hasher.Sha1. To implement your own hashing:

public interface IHasher
{
	string Hash(object obj);
}

Thanks

• Soap Dispenser icon by ProSymbols from The Noun Project