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2068 ankur.sing 1 
package in.shop2020.catalog.dashboard.shared;
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import java.util.Comparator;
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/**
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 * This comparator is used to sort item in order of ProductGroup, Brand, ModelNumber, Color
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 * @author ankur
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 *
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 */
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public class ItemsComparator implements Comparator<Item> {
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    @Override
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    public int compare(Item o1, Item o2) {
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        int i = 0;
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        if(o1.getProductGroup() != null && o2.getProductGroup() != null) {
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            i = o1.getProductGroup().toLowerCase().compareTo(o2.getProductGroup().toLowerCase());
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        }
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        if(i != 0) {
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            return i;
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        }
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        if(o1.getBrand() != null && o2.getBrand() != null) {
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            i = o1.getBrand().toLowerCase().compareTo(o2.getBrand().toLowerCase());
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        }
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        if(i != 0) {
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            return i;
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        }
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        if(o1.getModelNumber() != null && o2.getModelNumber() != null) {
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            i = o1.getModelNumber().toLowerCase().compareTo(o2.getModelNumber().toLowerCase());
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        }
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        if(i != 0) {
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            return i;
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        }
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        if(o1.getColor() != null && o2.getColor() != null) {
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            i = o1.getColor().toLowerCase().compareTo(o2.getColor().toLowerCase());
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        }
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        return i;
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    }
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}