com.neu.cloud.Controller.ThirdUseCaseController.java Source code

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Here is the source code for com.neu.cloud.Controller.ThirdUseCaseController.java

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package com.neu.cloud.Controller;

import com.amazonaws.AmazonClientException;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.PutObjectRequest;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.PageSize;
import com.lowagie.text.Table;
import com.lowagie.text.pdf.PdfWriter;
import com.neu.cloud.DAO.DAO;
import com.neu.cloud.DAO.ReportsDAO;
import com.neu.cloud.DAO.UserDAO;
import com.neu.cloud.POJO.User;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

/**
 *
 * @author dishujindal
 */
public class ThirdUseCaseController implements Controller {

    UserDAO userDao = new UserDAO();
    ReportsDAO reportsDAO = new ReportsDAO();

    @Override
    public ModelAndView handleRequest(HttpServletRequest hsr, HttpServletResponse hsr1) throws Exception {

        ModelAndView mv = new ModelAndView();
        HttpSession session = hsr.getSession();
        List<User> userList = new ArrayList<User>();

        List<ArrayList<User>> user1ReportList = new ArrayList<>();

        for (int i = 1; i <= 17; i++) {
            User user = new User();
            user.setUserID(i);
            String password = "pass" + i;
            user.setPassword(password);
            String username = "user" + i;
            user.setUsername(username);
            String product = "product" + i;
            user.setProductName(product);
            System.out.println("user" + i + " " + "created");
            userList.add(user);
        }

        userDao.addUser(userList);
        session.setAttribute("usernameList", userList);
        user1ReportList = reportsDAO.generateUseCaseReport(10);
        generateReports(user1ReportList);

        mv.setViewName("results");
        return mv;
    }

    //    public void generateReports(List<ArrayList<User>> user1ReportList) throws DocumentException, FileNotFoundException {
    //
    //        Date date;
    //        for (ArrayList<User> users : user1ReportList) {
    //            date = new Date();
    //            Document document = new Document(PageSize.A4, 50, 50, 50, 50);
    //            String path = System.getProperty("user.dir") + "//";
    //            PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(path + "ITextTest" + date.getTime() + ".pdf"));
    //
    //            document.open();
    //
    //            Table table = new Table(4);
    //            table.addCell("userID");
    //            table.addCell("username");
    //            table.addCell("password");
    //            table.addCell("productName");
    //
    //            for (User u : users) {
    //                table.addCell(String.valueOf(u.getUserID()));
    //                table.addCell(u.getUsername());
    //                table.addCell(u.getPassword());
    //                table.addCell(u.getProductName());
    //            }
    //
    //            document.add(table);
    //            document.close();
    //        }
    //    }

    public void generateReports(List<ArrayList<User>> user1ReportList)
            throws DocumentException, FileNotFoundException {
        Date date;
        String dateForFolder = String.valueOf(new Date());
        for (ArrayList<User> users : user1ReportList) {
            date = new Date();
            Document document = new Document(PageSize.A4, 50, 50, 50, 50);
            //            String path = System.getProperty("user.dir") + "\\reports\\";
            String path = System.getProperty("user.dir") + "//";
            String fileName = "ITextTest" + date.getTime() + ".pdf";
            //            PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(path + "ITextTest" + date.getTime() + ".pdf"));
            PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(path + fileName));
            document.open();
            Table table = new Table(4);
            table.addCell("userID");
            table.addCell("username");
            table.addCell("password");
            table.addCell("productName");
            for (User u : users) {
                table.addCell(String.valueOf(u.getUserID()));
                table.addCell(u.getUsername());
                table.addCell(u.getPassword());
                table.addCell(u.getProductName());
            }
            document.add(table);
            document.close();

            uploadInS3(path, fileName, dateForFolder);

            File file = new File(path + fileName);
            if (file.delete()) {
                System.out.println(file.getName() + " is deleted!");
            } else {
                System.out.println("Delete operation is failed.");
            }
        }
    }

    private void uploadInS3(String uploadFilePath, String uploadFileName, String dateForFolder) {
        String bucketName = "reports-sppard";
        String keyName = "UseCase3-" + dateForFolder + "/" + uploadFileName;
        AmazonS3 s3client = new AmazonS3Client(
                new BasicAWSCredentials("AKIAJ2E67YVFQ5PZSWQA", "xiVuejpUofGonrsiy2owvu/wgeNKq5nYjxYVC0ma"));
        try {
            System.out.println("Uploading a new object to S3 from a file\n");
            File file = new File(uploadFilePath + uploadFileName);
            s3client.putObject(new PutObjectRequest(bucketName, keyName, file));
        } catch (AmazonServiceException ase) {
            System.out.println("Caught an AmazonServiceException, which " + "means your request made it "
                    + "to Amazon S3, but was rejected with an error response" + " for some reason.");
            System.out.println("Error Message:    " + ase.getMessage());
            System.out.println("HTTP Status Code: " + ase.getStatusCode());
            System.out.println("AWS Error Code:   " + ase.getErrorCode());
            System.out.println("Error Type:       " + ase.getErrorType());
            System.out.println("Request ID:       " + ase.getRequestId());
        } catch (AmazonClientException ace) {
            System.out.println("Caught an AmazonClientException, which " + "means the client encountered "
                    + "an internal error while trying to " + "communicate with S3, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message: " + ace.getMessage());
        }
    }

}