/*
* TeleStax, Open Source Cloud Communications Copyright 2012.
* 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.
*/
package org.mobicents.protocols.ss7.tcap.asn;
import java.io.IOException;
import org.mobicents.protocols.asn.AsnException;
import org.mobicents.protocols.asn.AsnInputStream;
import org.mobicents.protocols.asn.AsnOutputStream;
import org.mobicents.protocols.asn.Tag;
import org.mobicents.protocols.ss7.tcap.asn.comp.PAbortCauseType;
import org.mobicents.protocols.ss7.tcap.asn.comp.TCAbortMessage;
/**
* @author amit bhayani
* @author baranowb
* @author sergey vetyutnev
*
*/
public class TCAbortMessageImpl implements TCAbortMessage {
private static final String _OCTET_STRING_ENCODE = "US-ASCII";
private byte[] destTxId;
private PAbortCauseType type;
private DialogPortion dp;
/*
* (non-Javadoc)
*
* @seeorg.mobicents.protocols.ss7.tcap.asn.comp.TCAbortMessage# getDestinationTransactionId()
*/
public byte[] getDestinationTransactionId() {
return destTxId;
}
/*
* (non-Javadoc)
*
* @see org.mobicents.protocols.ss7.tcap.asn.comp.TCAbortMessage#getDialogPortion ()
*/
public DialogPortion getDialogPortion() {
return dp;
}
/*
* (non-Javadoc)
*
* @see org.mobicents.protocols.ss7.tcap.asn.comp.TCAbortMessage#getPAbortCause()
*/
public PAbortCauseType getPAbortCause() {
return type;
}
/*
* (non-Javadoc)
*
* @seeorg.mobicents.protocols.ss7.tcap.asn.comp.TCAbortMessage# setDestinationTransactionId()
*/
public void setDestinationTransactionId(byte[] t) {
this.destTxId = t;
}
/*
* (non-Javadoc)
*
* @see org.mobicents.protocols.ss7.tcap.asn.comp.TCAbortMessage#setDialogPortion
* (org.mobicents.protocols.ss7.tcap.asn.DialogPortion)
*/
public void setDialogPortion(DialogPortion dp) {
this.dp = dp;
this.type = null;
}
/*
* (non-Javadoc)
*
* @see org.mobicents.protocols.ss7.tcap.asn.comp.TCAbortMessage#setPAbortCause
* (org.mobicents.protocols.ss7.tcap.asn.comp.PAbortCauseType)
*/
public void setPAbortCause(PAbortCauseType t) {
this.type = t;
this.dp = null;
}
/*
* (non-Javadoc)
*
* @see org.mobicents.protocols.ss7.tcap.asn.Encodable#decode(org.mobicents.protocols .asn.AsnInputStream)
*/
public void decode(AsnInputStream ais) throws ParseException {
try {
AsnInputStream localAis = ais.readSequenceStream();
int tag = localAis.readTag();
if (tag != _TAG_DTX || localAis.getTagClass() != Tag.CLASS_APPLICATION)
throw new ParseException(PAbortCauseType.IncorrectTxPortion, null,
"Error decoding TC-Abort: Expected DestinationTransactionId, found tag: " + tag);
this.destTxId = localAis.readOctetString();
if (localAis.available() == 0)
return;
tag = localAis.readTag();
if (localAis.getTagClass() != Tag.CLASS_APPLICATION)
throw new ParseException(PAbortCauseType.IncorrectTxPortion, null,
"Error decoding TC-Abort: DialogPortion and P-AbortCause portion must has tag class CLASS_APPLICATION");
switch (tag) {
case DialogPortion._TAG:
if (localAis.isTagPrimitive())
throw new ParseException(PAbortCauseType.IncorrectTxPortion, null,
"Error decoding TC-End: DialogPortion must be constructive");
this.dp = TcapFactory.createDialogPortion(localAis);
break;
case _TAG_P:
// primitive?
this.type = PAbortCauseType.getFromInt((int) localAis.readInteger());
break;
default:
throw new ParseException(PAbortCauseType.IncorrectTxPortion, null,
"Error decoding TC-Abort: bad tag while parsing DialogPortion and P-AbortCause portion: " + tag);
}
if (localAis.available() > 0)
throw new ParseException(PAbortCauseType.IncorrectTxPortion, null, "Error decoding TC-Abort: too mych data");
} catch (IOException e) {
throw new ParseException(PAbortCauseType.BadlyFormattedTxPortion, null, "IOException while decoding TC-Abort: "
+ e.getMessage(), e);
} catch (AsnException e) {
throw new ParseException(PAbortCauseType.BadlyFormattedTxPortion, null, "AsnException while decoding TC-Abort: "
+ e.getMessage(), e);
}
}
/*
* (non-Javadoc)
*
* @see org.mobicents.protocols.ss7.tcap.asn.Encodable#encode(org.mobicents.protocols .asn.AsnOutputStream)
*/
public void encode(AsnOutputStream aos) throws EncodeException {
try {
aos.writeTag(Tag.CLASS_APPLICATION, false, _TAG);
int pos = aos.StartContentDefiniteLength();
aos.writeOctetString(Tag.CLASS_APPLICATION, _TAG_DTX, this.destTxId);
if (this.type != null)
aos.writeInteger(Tag.CLASS_APPLICATION, _TAG_P, this.type.getType());
else if (this.dp != null)
this.dp.encode(aos);
aos.FinalizeContent(pos);
} catch (IOException e) {
throw new EncodeException("IOException while encoding TC-Abort: " + e.getMessage(), e);
} catch (AsnException e) {
throw new EncodeException("AsnException while encoding TC-Abort: " + e.getMessage(), e);
}
}
}