/*
* The Kuali Financial System, a comprehensive financial management system for higher education.
*
* Copyright 2005-2014 The Kuali Foundation
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.kuali.kfs.module.ar.service.impl;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.kuali.kfs.module.ar.service.AccountsReceivablePdfHelperService;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.pdf.BadPdfFormatException;
import com.lowagie.text.pdf.PdfCopy;
import com.lowagie.text.pdf.PdfImportedPage;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.SimpleBookmark;
public class AccountsReceivablePdfHelperServiceImpl implements AccountsReceivablePdfHelperService {
@Override
public ByteArrayOutputStream buildPdfOutputStream(byte[] content) throws IOException, DocumentException, BadPdfFormatException {
List<byte[]> contents = new ArrayList<>();
contents.add(content);
return buildPdfOutputStream(contents);
}
@Override
public ByteArrayOutputStream buildPdfOutputStream(List<byte[]> contents) throws IOException, DocumentException, BadPdfFormatException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ArrayList<PdfReader> master = new ArrayList<>();
Document document = null;
PdfCopy writer = null;
boolean createDocument = true;
for (byte[] content:contents) {
// create a reader for the document
PdfReader reader = new PdfReader(content);
reader.consolidateNamedDestinations();
// retrieve the total number of pages
int n = reader.getNumberOfPages();
List<PdfReader> bookmarks = SimpleBookmark.getBookmark(reader);
if (bookmarks != null) {
master.addAll(bookmarks);
}
if (createDocument) {
// step 1: create a document-object
document = new Document(reader.getPageSizeWithRotation(1));
// step 2: create a writer that listens to the document
writer = new PdfCopy(document, baos);
// step 3: open the document
document.open();
}
// step 4: add content
PdfImportedPage page;
for (int i = 0; i < n; ) {
++i;
page = writer.getImportedPage(reader, i);
writer.addPage(page);
}
writer.freeReader(reader);
createDocument = false;
}
if (!master.isEmpty()) {
writer.setOutlines(master);
}
// step 5: we close the document
document.close();
return baos;
}
}