/** Create a zip file containing all the files (masterreport, subreports, images) */
private void writeZip(final OutputStream outStream) throws Exception {
File zipfile = null;
final List<String> newImagesFilenames = new LinkedList<String>();
final JasperReport[] jra = reportCard.getRichReportJRA();
try {
// create zip file
zipfile = File.createTempFile("cmdbuild_report_export", ".zip");
final ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(zipfile));
// get jasperdesign for master report
final JasperReport masterReport = jra[0];
final JasperDesign jd = jasperReportToJasperDesign(masterReport);
// add images to zip file
final List<JRDesignImage> designImages = getImages(jd);
final InputStream[] isa = reportCard.getImagesISA();
final String[] origImagesName =
reportCard.getImagesName() != null
? reportCard.getImagesName()
: new String[isa.length]; // original names with check for
// backward compatibility
for (int i = 0; i < isa.length; i++) {
String imageFilename;
if (origImagesName[i] != null) {
imageFilename = origImagesName[i];
} else { // backward compatibility
imageFilename = "image" + (i + 1) + "." + getImageFormatName(isa[i]);
origImagesName[i] = imageFilename;
}
// update image filename
setImageFilename(designImages.get(i), imageFilename);
// write image
final InputStream is = isa[i];
newImagesFilenames.add(imageFilename);
zos.putNextEntry(new ZipEntry(imageFilename));
for (int b = is.read(); b != -1; b = is.read()) {
zos.write(b);
}
zos.closeEntry();
}
// add reports (jrxml) to zip file
for (int i = 0; i < jra.length; i++) {
// add ZIP entry to output stream.
final String filename = jra[i].getName() + ".jrxml";
try {
zos.putNextEntry(new ZipEntry(filename));
} catch (final ZipException e) {
Log.REPORT.warn("error while zipping elements", e);
continue;
}
// if master report, update images and subreports paths
if (i == 0) {
// update images
prepareDesignImagesForZipExport(designImages, origImagesName);
// update subreports
prepareDesignSubreportsForZipExport(getSubreports(jd), jra);
// compile updated jasperdesign
final JasperReport newjr = JasperCompileManager.compileReport(jd);
// replace jasperreport obj with the new one
jra[0] = newjr;
}
// write to zip
JRXmlWriter.writeReport(jra[i], zos, "UTF-8");
// complete the entry
zos.closeEntry();
}
// close zip stream
zos.close();
// send final zip to output stream
final FileInputStream fis = new FileInputStream(zipfile);
for (int b = fis.read(); b != -1; b = fis.read()) {
outStream.write(b);
}
fis.close();
} finally {
// delete zip file
if (zipfile != null && zipfile.exists()) {
zipfile.delete();
}
}
}
