/**
* Zips a given file or directory
*
* @param byte[] content to zip
* @return byte[] zipped content
* @throws IOException If the zip content can't be created
*/
private byte[] zipContent(byte[] content) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ZipOutputStream zos = new ZipOutputStream(baos);
zos.setComment("jLibrary ZIP archive");
zos.setMethod(ZipOutputStream.DEFLATED);
zos.setEncoding("UTF-8");
zos.setLevel(Deflater.DEFAULT_COMPRESSION);
// create and initialize a zipentry for it
ZipEntry entry = new ZipEntry("jlibrary");
entry.setTime(System.currentTimeMillis());
zos.putNextEntry(entry);
zos.write(content);
zos.closeEntry();
zos.close();
baos.close();
return baos.toByteArray();
}
public void exportRepository(Ticket ticket, OutputStream stream)
throws RepositoryNotFoundException, RepositoryException, SecurityException {
try {
javax.jcr.Session session = SessionManager.getInstance().getSession(ticket);
if (session == null) {
throw new RepositoryException("Session has expired. Please log in again.");
}
javax.jcr.Node root = JCRUtils.getRootNode(session);
if (!JCRSecurityService.canRead(root, ticket.getUser().getId())) {
throw new SecurityException(SecurityException.NOT_ENOUGH_PERMISSIONS);
}
// Create a temporary file with content
File tempRoot = File.createTempFile("tmp", "jlib");
FileOutputStream fos = null;
try {
fos = new FileOutputStream(tempRoot);
session.exportSystemView(JCRUtils.getRootNode(session).getPath(), fos, false, false);
} finally {
if (fos != null) {
fos.close();
}
}
// Will wrap compression around the given stream
ZipOutputStream zos = null;
try {
zos = new ZipOutputStream(stream);
zos.setComment("jLibrary ZIP archive");
zos.setMethod(ZipOutputStream.DEFLATED);
zos.setEncoding("UTF-8");
zos.setLevel(Deflater.DEFAULT_COMPRESSION);
// create and initialize a zipentry for it
ZipEntry entry = new ZipEntry("jlibrary");
entry.setTime(System.currentTimeMillis());
zos.putNextEntry(entry);
// write header
String tag = String.valueOf(tempRoot.length()) + "*";
byte[] header = tag.getBytes();
zos.write(header);
// write root
FileInputStream fis = null;
try {
fis = new FileInputStream(tempRoot);
IOUtils.copy(fis, zos);
} finally {
if (fis != null) {
fis.close();
}
}
// Delete root file
tempRoot.delete();
session.exportSystemView(JCRUtils.getSystemNode(session).getPath(), zos, false, false);
} finally {
if (zos != null) {
zos.closeEntry();
zos.close();
}
}
} catch (PathNotFoundException e) {
logger.error(e.getMessage(), e);
throw new RepositoryException(e);
} catch (IOException e) {
logger.error(e.getMessage(), e);
throw new RepositoryException(e);
} catch (javax.jcr.RepositoryException e) {
logger.error(e.getMessage(), e);
throw new RepositoryException(e);
}
}
