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rajveer |
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package in.shop2020.utils;
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import java.io.Serializable;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import in.shop2020.model.v1.catalog.Category;
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import in.shop2020.model.v1.catalog.InventoryService.Client;
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import in.shop2020.thrift.clients.CatalogServiceClient;
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public class CategoryManager implements Serializable{
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private static final long serialVersionUID = 1L;
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private static CategoryManager categoryManager;
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private Map<Long, Category> categories;
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static{
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synchronized(CategoryManager.class){
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categoryManager = new CategoryManager();
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}
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}
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@SuppressWarnings("unchecked")
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private CategoryManager(){
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Logger.log("Initializing category manager", this);
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categories = new HashMap<Long, Category>();
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try {
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CatalogServiceClient catalogServiceClient = new CatalogServiceClient();
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Client client = catalogServiceClient.getClient();
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List<Category> t_categories = client.getAllCategories();
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for(Category category: t_categories){
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categories.put(category.getId(), category);
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}
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for(Category category: t_categories){
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if(category.getParent_category_id() != 0){
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if(category.getParent_category_id()!=0){
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List<Long> childCats = categories.get(category.getParent_category_id()).getChildren_category_ids();
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if(childCats==null){
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childCats = new ArrayList<Long>();
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}
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childCats.add(category.getId());
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}
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}
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}
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} catch (Exception e) {
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Logger.log("Unable to load categories from Catalog.", this);
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categories = null;
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e.printStackTrace();
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}
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Logger.log("Initialized category manager", this);
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}
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public static CategoryManager getCategoryManager(){
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return categoryManager;
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}
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public Map<Long, Category> getCategories(){
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return this.categories;
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}
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public String getCategoryLabel(long categoryId){
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Category category = this.categories.get(categoryId);
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if(category == null){
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return null;
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}
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return category.getLabel();
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}
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public Category getCategory(long categoryId){
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return this.categories.get(categoryId);
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}
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}
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