/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jbpm.util;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.security.AccessController;
import java.security.PrivilegedAction;
public class IoUtil {
private static final int BUFFER_SIZE = 4096;
public static final String lineSeparator = (String) AccessController.doPrivileged(
new PrivilegedAction() {
public Object run() {
return System.getProperty("line.separator");
}
});
// hide default constructor
private IoUtil() {
}
public static byte[] readBytes(InputStream in) throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
transfer(in, out);
return out.toByteArray();
}
public static int transfer(InputStream in, OutputStream out) throws IOException {
int total = 0;
byte[] buffer = new byte[BUFFER_SIZE];
for (int bytesRead; (bytesRead = in.read(buffer)) != -1; total += bytesRead) {
out.write(buffer, 0, bytesRead);
}
return total;
}
}