/*
* TeleStax, Open Source Cloud Communications
* Copyright 2012, Telestax Inc and individual contributors
* 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.
*/
/**
* Start time:13:15:04 2009-04-04<br>
* Project: mobicents-isup-stack<br>
*
* @author <a href="mailto:baranowb@gmail.com"> Bartosz Baranowski
* </a>
*
*/
package org.mobicents.protocols.ss7.isup.impl.message.parameter;
import org.mobicents.protocols.ss7.isup.ParameterException;
import org.mobicents.protocols.ss7.isup.message.parameter.BackwardGVNS;
/**
* Start time:13:15:04 2009-04-04<br>
* Project: mobicents-isup-stack<br>
*
* @author <a href="mailto:baranowb@gmail.com"> Bartosz Baranowski </a>
*/
public class BackwardGVNSImpl extends AbstractISUPParameter implements BackwardGVNS {
private byte[] backwardGVNS = null;
public BackwardGVNSImpl(byte[] backwardGVNS) throws ParameterException {
super();
decode(backwardGVNS);
}
public BackwardGVNSImpl() {
super();
}
public int decode(byte[] b) throws ParameterException {
if (b == null || b.length == 0) {
throw new ParameterException("byte[] must not be null and length must be greater than 0");
}
this.backwardGVNS = b;
return b.length;
}
public byte[] encode() throws ParameterException {
for (int index = 0; index < this.backwardGVNS.length; index++) {
this.backwardGVNS[index] = (byte) (this.backwardGVNS[index] & 0x7F);
}
this.backwardGVNS[this.backwardGVNS.length - 1] = (byte) (this.backwardGVNS[this.backwardGVNS.length - 1] & (1 << 7));
return this.backwardGVNS;
}
public byte[] getBackwardGVNS() {
return backwardGVNS;
}
public void setBackwardGVNS(byte[] backwardGVNS) {
if (backwardGVNS == null || backwardGVNS.length == 0) {
throw new IllegalArgumentException("byte[] must not be null and length must be greater than 0");
}
this.backwardGVNS = backwardGVNS;
}
public int getCode() {
return _PARAMETER_CODE;
}
}