eu.europa.esig.dss.pdf.openpdf.visible.ITextDefaultSignatureDrawerFactory Maven / Gradle / Ivy
/**
* DSS - Digital Signature Services
* Copyright (C) 2015 European Commission, provided under the CEF programme
*
* This file is part of the "DSS - Digital Signature Services" project.
*
* This library 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.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package eu.europa.esig.dss.pdf.openpdf.visible;
import eu.europa.esig.dss.model.DSSDocument;
import eu.europa.esig.dss.pades.SignatureImageParameters;
import eu.europa.esig.dss.pades.SignatureImageTextParameters;
/**
* Default implementation for IText (OpenPDF) to load a relevant visual signature drawer
*/
public class ITextDefaultSignatureDrawerFactory implements ITextSignatureDrawerFactory {
/**
* Default constructor
*/
public ITextDefaultSignatureDrawerFactory() {
// empty
}
@Override
public ITextSignatureDrawer getSignatureDrawer(SignatureImageParameters imageParameters) {
final DSSDocument image = imageParameters.getImage();
final SignatureImageTextParameters textParameters = imageParameters.getTextParameters();
if ((image == null) && !textParameters.isEmpty()) {
return new TextOnlySignatureDrawer();
} else if ((image != null) && textParameters.isEmpty()) {
return new ImageOnlySignatureDrawer();
} else if (image == null && textParameters.isEmpty()) {
throw new IllegalArgumentException("Neither image nor text parameters are defined!");
} else {
// Custom drawer(s) can be injected with a new Factory and a custom instance of
// IPdfObjFactory
throw new UnsupportedOperationException("Image with Text visual signature is not supported for OpenPDF module!");
}
}
}