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5437 mandeep.dh 1 
/**
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 *
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 */
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package in.shop2020.inventory.service;
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import java.util.ArrayList;
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import java.util.List;
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/**
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 * @author mandeep
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 *
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 */
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public class StrategyEvaluator {
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    List<Strategy> strategies;
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    public StrategyEvaluator(List<Strategy> strategies) {
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        if (strategies == null) {
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            this.strategies = new ArrayList<Strategy>();
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        }
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        else {
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            this.strategies = strategies;
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        }
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    }
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    public long evaluate(long itemId, long warehouseId, long quantity) {
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        for (Strategy strategy : strategies) {
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            quantity = strategy.compute(itemId, warehouseId, quantity);
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        }
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        return quantity;
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    }
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}