productcategorybaseaction.java

工厂版本管理系统,STRUTS2框架,用于管理商品的版本,便于有效的控制版本

package com.bluesky.elecall.web.struts.action;

import java.util.ArrayList;
import java.util.List;

import com.bluesky.elecall.domain.CategoryItem;
import com.bluesky.elecall.web.Link;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.Preparable;
import com.opensymphony.xwork2.interceptor.PreResultListener;

public class ProductCategoryBaseAction extends BaseAction implements Preparable,PreResultListener{

	/*
	 * if in search mode, keywords is not empty
	 */
	protected String keywords;
	
	/*
	 * current selected category item id, input via GET URL
	 */
	protected long categoryItemId;

	/*
	 * for menu data
	 */
	protected CategoryItem rootCategoryItem;

	/*
	 * current selected category item
	 */
	protected CategoryItem categoryItem;

	/*
	 * selected leve1 1 item.
	 */
	protected CategoryItem selectedBookItem;

	/*
	 * sometimes, selectedCategoryItem != currentCategoryItem, when the level3
	 * item is selected, its parent item is the 'currentCategoryItem'
	 */
	protected CategoryItem currentCategoryItem;

	/*
	 * category path, from root -> ..., -> current selected category item
	 */
	protected List<Link> categoryPath = new ArrayList();
	

	public void prepare() throws Exception {
		// load menu data
		rootCategoryItem = productCategory.getRootCategoryItem(2);

		
	}
	

	public void beforeResult(ActionInvocation arg0, String arg1) {
		if(categoryItem==null)
			categoryItem = productCategory.getCategoryItem(categoryItemId);
		
		if (currentCategoryItem == null)
			currentCategoryItem = categoryItem;//by default
		
		
		// load the category path
		if (currentCategoryItem != null) {		
			
			CategoryItem item = currentCategoryItem;
			while(item.getLevel() > 1){
				CategoryItem parentItem = productCategory.getParentCategoryItem(item);
				
				String url;
				String name;

				if (item.getLevel() == 3)
				{
					url = String.format("categoryItemId=%d#%s", parentItem.getId(),item.getName());
					name = item.getName();					
				}
				else
				{
					url = String.format("categoryItemId=%d", item.getId());
					name = item.getName();
				}
				
				Link link = new Link(url,name);
				categoryPath.add(0, link);
				
				item = parentItem;
			}
			
			selectedBookItem = item;						
		}
		
	}
	

	public String getKeywords() {
		return keywords;
	}

	public void setKeywords(String keywords) {
		this.keywords = keywords;
	}

	public CategoryItem getRootCategoryItem() {
		return rootCategoryItem;
	}

	public void setRootCategoryItem(CategoryItem rootCategoryItem) {
		this.rootCategoryItem = rootCategoryItem;
	}



	public CategoryItem getCategoryItem() {
		return categoryItem;
	}

	public void setCategoryItem(CategoryItem categoryItem) {
		this.categoryItem = categoryItem;
	}

	public CategoryItem getSelectedBookItem() {
		return selectedBookItem;
	}

	public void setSelectedBookItem(CategoryItem selectedBookItem) {
		this.selectedBookItem = selectedBookItem;
	}

	public CategoryItem getCurrentCategoryItem() {
		return currentCategoryItem;
	}

	public void setCurrentCategoryItem(CategoryItem currentCategoryItem) {
		this.currentCategoryItem = currentCategoryItem;
	}

	public List getCategoryPath() {
		return categoryPath;
	}

	public void setCategoryPath(List categoryPath) {
		this.categoryPath = categoryPath;
	}

	public long getCategoryItemId() {
		return categoryItemId;
	}

	public void setCategoryItemId(long categoryItemId) {
		this.categoryItemId = categoryItemId;
	}

}