/** * Remove a file from an item * * @param context current DSpace context * @param item Item where file should be removed from * @param bitstreamID The id of bitstream representing the file to remove * @return Status or error flag which will be processed by UI-related code! (if STATUS_COMPLETE or * 0 is returned, no errors occurred!) */ protected int processRemoveFile(Context context, Item item, int bitstreamID) throws IOException, SQLException, AuthorizeException { Bitstream bitstream; // Try to find bitstream try { bitstream = Bitstream.find(context, bitstreamID); } catch (NumberFormatException nfe) { bitstream = null; } if (bitstream == null) { // Invalid or mangled bitstream ID // throw an error and return immediately return STATUS_INTEGRITY_ERROR; } // remove bitstream from bundle.. // delete bundle if it's now empty Bundle[] bundles = bitstream.getBundles(); bundles[0].removeBitstream(bitstream); Bitstream[] bitstreams = bundles[0].getBitstreams(); // remove bundle if it's now empty if (bitstreams.length < 1) { item.removeBundle(bundles[0]); item.update(); } // no errors occurred return STATUS_COMPLETE; }
/* If we created a new Bitstream but now realised there is a problem then remove it. */ private void backoutBitstream(SubmissionInfo subInfo, Bitstream b, Item item) throws SQLException, AuthorizeException, IOException { // remove bitstream from bundle.. // delete bundle if it's now empty Bundle[] bnd = b.getBundles(); bnd[0].removeBitstream(b); Bitstream[] bitstreams = bnd[0].getBitstreams(); // remove bundle if it's now empty if (bitstreams.length < 1) { item.removeBundle(bnd[0]); item.update(); } subInfo.setBitstream(null); }