/**
* Purspose is to demo the Adapter design pattern
* The target is the StockData interface
* the Adaptee is StockDataHTML which provides useful information
* but is incompatible with client.
* The Adapter is StockDataAdapter
* */
static void Main(string[] args)
{
// this is the stock symbol client wants to analyze
string symbol = "CAT";
// create an advisor to offer advice
Advisor advisor = new Advisor();
/**
* the first data source is compatible with client
* */
IStockData stockData1 = new StockDataJSON();
// gets the data in an array compatible with Advisor
StockPrice[] prices1 = stockData1.GetStockData(symbol);
Console.WriteLine("The Advisor offers the following recommendation for {0}: {1} from StockDataJSON", symbol, advisor.OfferAdvice(prices1));
/*
* the second data source is incompatible with Advisor
* and needs to use the adapter
* */
StockDataHTML stockDataHTML = new StockDataHTML();
IStockData stockData2 = new StockDataAdapter(stockDataHTML);
StockPrice[] prices2 = stockData2.GetStockData(symbol);
Console.WriteLine("The Advisor offers the following recommendation for {0}: {1} from StockDataHTML", symbol, advisor.OfferAdvice(prices2));
}
// Adapter could manage different data sources
public StockDataAdapter(StockDataHTML stockDataHTML)
{
this._stockDataHTML = stockDataHTML;
}
