eu.europa.ec.markt.dss.signature.pdf.pdfbox.PdfBoxWriter.java Source code

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Here is the source code for eu.europa.ec.markt.dss.signature.pdf.pdfbox.PdfBoxWriter.java

Source

/*
 * DSS - Digital Signature Services
 *
 * Copyright (C) 2013 European Commission, Directorate-General Internal Market and Services (DG MARKT), B-1049 Bruxelles/Brussel
 *
 * Developed by: 2013 ARHS Developments S.A. (rue Nicolas Bov 2B, L-1253 Luxembourg) http://www.arhs-developments.com
 *
 * This file is part of the "DSS - Digital Signature Services" project.
 *
 * "DSS - Digital Signature Services" is free software: you can redistribute it and/or modify it under the terms of
 * the GNU Lesser General Public License as published by the Free Software Foundation, either version 2.1 of the
 * License, or (at your option) any later version.
 *
 * DSS 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with
 * "DSS - Digital Signature Services".  If not, see <http://www.gnu.org/licenses/>.
 */

package eu.europa.ec.markt.dss.signature.pdf.pdfbox;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import org.apache.pdfbox.exceptions.COSVisitorException;
import org.apache.pdfbox.pdmodel.PDDocument;

import eu.europa.ec.markt.dss.DSSUtils;
import eu.europa.ec.markt.dss.signature.pdf.PdfWriter;

class PdfBoxWriter implements PdfWriter {

    PDDocument document;

    private OutputStream output;

    private FileInputStream tempInput;

    private FileOutputStream tempOutput;

    private File tempDocumentOut;

    public PdfBoxWriter(PDDocument document, OutputStream output) throws IOException {

        this.document = document;
        try {
            this.output = output;

            File tempDocumentIn = new File("target/copyoffile.pdf");
            tempOutput = new FileOutputStream(tempDocumentIn);
            document.save(tempOutput);
            tempOutput.close();

            tempInput = new FileInputStream(tempDocumentIn);
            tempDocumentOut = new File("target/copyoffileout.pdf");
            tempOutput = new FileOutputStream(tempDocumentOut);
            DSSUtils.copy(tempInput, tempOutput);
            tempInput.close();

            tempInput = new FileInputStream(tempDocumentIn);

        } catch (COSVisitorException e) {
            throw new IOException(e);
        }

    }

    @Override
    public void saveIncremental() throws IOException {
        try {
            document.saveIncremental(tempInput, tempOutput);
            tempOutput.close();
            tempInput.close();

            tempInput = new FileInputStream(tempDocumentOut);
            DSSUtils.copy(tempInput, output);
            tempInput.close();
        } catch (COSVisitorException e) {
            throw new IOException(e);
        }
    }

}