org.bonitasoft.engine.commons.ClassDataUtil Maven / Gradle / Ivy
/**
* Copyright (C) 2019 Bonitasoft S.A.
* Bonitasoft, 32 rue Gustave Eiffel - 38000 Grenoble
* 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
* version 2.1 of the License.
* 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
* program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
* Floor, Boston, MA 02110-1301, USA.
**/
package org.bonitasoft.engine.commons;
import java.io.IOException;
import java.io.InputStream;
import org.bonitasoft.engine.commons.io.IOUtil;
/**
* @author Elias Ricken de Medeiros
*/
public class ClassDataUtil {
public static byte[] getClassData(final Class clazz) throws IOException {
if (clazz == null) {
final String message = "Class is null";
throw new IOException(message);
}
final String resource = clazz.getName().replace('.', '/') + ".class";
final InputStream inputStream = clazz.getClassLoader().getResourceAsStream(resource);
byte[] data = null;
try {
if (inputStream == null) {
throw new IOException(
"Impossible to get stream from class: " + clazz.getName() + ", className= " + resource);
}
data = IOUtil.getAllContentFrom(inputStream);
} finally {
if (inputStream != null) {
inputStream.close();
}
}
return data;
}
}