PerlJobs

by GarciaPL on Thursday 31 March 2016

I would like to announce that new Android app has been released recently times by me. This time application is called PerlJobs. This application helps you as a Perl developer to find new job opportunities across the globe. Job offers are divided into sections : Standard, Mod, Catalyst, Mason, Telecommute and By Country. The main source of all jobs is website : https://jobs.perl.org

Google Play Developer Page

by GarciaPL on Sunday 6 March 2016

Yes! I finally managed to create it. Obviously it is not so pretty as it might be, but.. never mind :) If you would like to create your own Google Play Developer Page where you can add some promotion text and graphics (icon and background), just go to your Developer Console and then click Settings and then Developer Page. If you are looking for let's say 'inspiration', you can have a look on my Developer Page which link you can find below :





Pack CSV files in ZIP Archive

by GarciaPL on Saturday 5 March 2016

This time I would like to share with small snippet of code written in Java and Spring MVC which might allow you to pack and download some files (in this case .csv file) in ZIP archive. So, if you will hit URL http://localhost:8090/yourApp/download/zip, Zip archive will be downloaded with name 'download.zip'.

    @ResponseBody
    @RequestMapping(value = {"/download/zip"}, method = RequestMethod.GET)
    public void downloadZipArchive(HttpServletResponse response) throws IOException {

        List<MyClass> list; //should contains some records!
        if (list != null && !list.isEmpty()) {
            if (list.size() > 200000) {

                response.setContentType("application/zip");
                response.addHeader("Content-Disposition", "attachment; filename=\"download.zip\"");
                response.addHeader("Content-Transfer-Encoding", "binary");

                OutputStream servletOutputStream = response.getOutputStream();
                ZipOutputStream zos = new ZipOutputStream(servletOutputStream);

                int counter = 0;
                List<List<MyClass>> dividedlist = Lists.partition(list, 200000);
                for (List<MyClass> partition : dividedlist) {
                    zos.putNextEntry(new ZipEntry("file_" + counter + ".csv"));
                    CSVWriter writer = new CSVWriter(new OutputStreamWriter(zos));
                    writer.writeNext(new String[]{"HEADER"});
                    for (MyClass item : partition) {
                        writer.writeNext(new String[]{item.getText()});
                    }
                    writer.flush();
                    zos.closeEntry();
                    counter++;
                }
                zos.close();
                response.getOutputStream().flush();
                response.getOutputStream().close();
            }
        }
    }