eu.europa.esig.dss.client.http.commons.ResourceLoader 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.client.http.commons;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.net.URLDecoder;
import eu.europa.esig.dss.DSSException;
public class ResourceLoader {
protected Class anyClass = ResourceLoader.class;
public ResourceLoader() {
}
/**
* It can be used when there is a need to change the class loader.
*
* @param anyClass
* the base class to be used
*/
public ResourceLoader(Class anyClass) {
this.anyClass = anyClass;
}
/**
* This method replaces all special characters by an underscore
*
* @param fileName
* the filename to normalize
* @return the normalized filename
*/
public static String getNormalizedFileName(final String fileName) {
final String normalizedFileName = fileName.replaceAll("\\W", "_");
return normalizedFileName;
}
/**
* This method converts the resource path to the absolute path in target folder.
*
* @param resourcePath
* resource path
* @return the absolute of the parent folder
*/
public String getAbsoluteResourceFolder(final String resourcePath) throws DSSException {
final URL uri = anyClass.getResource(resourcePath);
if (uri == null) {
return null;
}
final String absolutePath = uri.getPath();
try {
final String decodedAbsolutePath = URLDecoder.decode(absolutePath, "UTF-8");
return decodedAbsolutePath;
} catch (UnsupportedEncodingException e) {
throw new DSSException(e);
}
}
}