productplugin.java

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package com.pandahome.struts.plugin;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;

import org.apache.struts.action.ActionServlet;
import org.apache.struts.action.PlugIn;
import org.apache.struts.config.ModuleConfig;

import com.pandahome.struts.domain.Product;

public class ProductPlugin implements PlugIn {

	public void destroy() {
		// TODO Auto-generated method stub

	}

	public void init(ActionServlet arg0, ModuleConfig arg1)
			throws ServletException {
		// TODO Auto-generated method stub
		List<Product> products = new ArrayList<Product>();
		ServletContext context = arg0.getServletContext();
		String fileName = context.getInitParameter("catalogfile");
		String filePath = context.getRealPath(fileName);
		try {
			InputStream is = new FileInputStream(filePath);
			BufferedReader br = new BufferedReader(new InputStreamReader(is));
			String str = br.readLine();
			while (str != null) {
				Product p = new Product();
				String[] strs = str.split("\\|");
				p.setProductCode(strs[0]);
				p.setPrice(strs[1]);
				p.setQuantity(Integer.parseInt(strs[2]));
				p.setDescription(strs[3]);
				products.add(p);
				str = br.readLine();
			}
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		System.out.println(products.size());
		context.setAttribute("products", products);
	}

}