com.mycompany.controller.catalog.PDFController.java Source code

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Here is the source code for com.mycompany.controller.catalog.PDFController.java

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/*
 * Copyright 2008-2012 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.mycompany.controller.catalog;

import org.broadleafcommerce.cms.page.dto.PageDTO;
import org.broadleafcommerce.cms.page.service.PageService;
import org.broadleafcommerce.common.web.BroadleafRequestContext;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import com.lowagie.text.Document;
import com.lowagie.text.PageSize;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.PdfWriter;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Arrays;
import java.util.Iterator;
import java.util.Map;

@Controller
@RequestMapping("")
public class PDFController {

    /**
     * Size of a byte buffer to read/write file
     */
    private static final int BUFFER_SIZE = 4096;

    /**
     * Path of the file to be downloaded, relative to application's directory
     */
    private String filePath = "/downloads/SpringProject.zip";

    /**
     * Method for handling file download request from client
     */

    @Resource(name = "blPageService")
    private PageService pageService;

    @RequestMapping(value = ("/createPDF"), method = RequestMethod.GET)
    public void doDownload(HttpServletRequest request, HttpServletResponse response) throws IOException {

        try {
            BroadleafRequestContext context = BroadleafRequestContext.getBroadleafRequestContext();
            Document document = new Document(PageSize.A4, 36, 72, 108, 180);
            PdfWriter.getInstance(document, new FileOutputStream("C:\\Users\\Bharath\\Desktop\\bharath1.pdf"));
            document.open();
            Map<String, String[]> map = (Map<String, String[]>) context.getRequest().getParameterMap();
            Iterator<Map.Entry<String, String[]>> it = map.entrySet().iterator();
            while (it.hasNext()) {
                Map.Entry<String, String[]> pairs = (Map.Entry<String, String[]>) it.next();
                document.add(new Paragraph(Arrays.toString(pairs.getValue())));
                it.remove(); // avoids a ConcurrentModificationException
            }
            document.close();
            System.out.println("converted to HTML");
        } catch (Exception e) {
            e.printStackTrace();
        }
        File downloadFile = new File("C:\\Users\\Bharath\\Desktop\\bharath1.pdf");
        FileInputStream inputStream = new FileInputStream(downloadFile);
        response.setContentType("application/pdf");
        response.setContentLength((int) downloadFile.length());
        // set headers for the response
        String headerKey = "Content-Disposition";
        String headerValue = String.format("attachment; filename=\"%s\"", downloadFile.getName());
        response.setHeader(headerKey, headerValue);
        OutputStream outStream = response.getOutputStream();
        System.out.println("9");
        byte[] buffer = new byte[BUFFER_SIZE];
        int bytesRead = -1;
        System.out.println("10");
        // write bytes read from the input stream into the output stream
        while ((bytesRead = inputStream.read(buffer)) != -1) {
            outStream.write(buffer, 0, bytesRead);
        }
        inputStream.close();
        outStream.close();
        response.flushBuffer();
        boolean success = (new File("C:\\Users\\Bharath\\Desktop\\bharath1.pdf")).delete();
    }
}