/*
* 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.tcapAnsi.asn;
import java.io.IOException;
import java.util.Arrays;
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.tcapAnsi.api.asn.DialogPortion;
import org.mobicents.protocols.ss7.tcapAnsi.api.asn.EncodeException;
import org.mobicents.protocols.ss7.tcapAnsi.api.asn.ParseException;
import org.mobicents.protocols.ss7.tcapAnsi.api.asn.UserInformationElement;
import org.mobicents.protocols.ss7.tcapAnsi.api.asn.comp.PAbortCause;
import org.mobicents.protocols.ss7.tcapAnsi.api.asn.comp.TCAbortMessage;
import org.mobicents.protocols.ss7.tcapAnsi.api.asn.comp.TCQueryMessage;
/**
* @author amit bhayani
* @author baranowb
* @author sergey vetyutnev
*
*/
public class TCAbortMessageImpl implements TCAbortMessage {
private byte[] destinationTransactionId;
private DialogPortion dp;
private PAbortCause pAbortCause;
private UserInformationElement userAbortInformation;
/*
* (non-Javadoc)
*
* @see org.mobicents.protocols.ss7.tcap.asn.comp.TCBeginMessage#getDialogPortion ()
*/
public DialogPortion getDialogPortion() {
return this.dp;
}
/*
* (non-Javadoc)
*
* @seeorg.mobicents.protocols.ss7.tcap.asn.comp.TCBeginMessage# getOriginatingTransactionId()
*/
public byte[] getDestinationTransactionId() {
return this.destinationTransactionId;
}
/*
* (non-Javadoc)
*
* @see org.mobicents.protocols.ss7.tcap.asn.comp.TCBeginMessage#setDialogPortion
* (org.mobicents.protocols.ss7.tcap.asn.DialogPortion)
*/
public void setDialogPortion(DialogPortion dp) {
this.dp = dp;
}
/*
* (non-Javadoc)
*
* @seeorg.mobicents.protocols.ss7.tcap.asn.comp.TCBeginMessage# setOriginatingTransactionId(java.lang.String)
*/
public void setDestinationTransactionId(byte[] t) {
if (t != null && t.length != 4)
throw new IllegalArgumentException("TransactionId leng must be 4 bytes, found: " + t.length);
this.destinationTransactionId = t;
}
@Override
public PAbortCause getPAbortCause() {
return this.pAbortCause;
}
@Override
public void setPAbortCause(PAbortCause t) {
this.pAbortCause = t;
}
@Override
public UserInformationElement getUserAbortInformation() {
return userAbortInformation;
}
@Override
public void setUserAbortInformation(UserInformationElement uai) {
userAbortInformation = uai;
}
/*
* (non-Javadoc)
*
* @see org.mobicents.protocols.ss7.tcap.asn.Encodable#decode(org.mobicents.protocols .asn.AsnInputStream)
*/
public void decode(AsnInputStream ais) throws ParseException {
this.destinationTransactionId = null;
this.dp = null;
this.pAbortCause = null;
this.userAbortInformation = null;
try {
AsnInputStream localAis = ais.readSequenceStream();
// transaction portion
TransactionID tid = TcapFactory.readTransactionID(localAis);
if (tid.getFirstElem() == null || tid.getSecondElem() != null) {
throw new ParseException(PAbortCause.BadlyStructuredTransactionPortion,
"Error decoding TCAbortMessage: transactionId must contain one and only one transactionId");
}
this.destinationTransactionId = tid.getFirstElem();
if (localAis.available() == 0) {
throw new ParseException(PAbortCause.UnrecognizedDialoguePortionID,
"Error decoding TCAbortMessage: neither P-Abort-cause nor dialog portion or userInformation is found");
}
int tag = localAis.readTag();
if (localAis.getTagClass() != Tag.CLASS_PRIVATE)
throw new ParseException(PAbortCause.UnrecognizedDialoguePortionID,
"Error decoding TCAbortMessage: bad tagClass for P-Abort-cause, userInformation or abortCause, found tagClass=" + localAis.getTagClass());
switch (tag) {
case TCAbortMessage._TAG_P_ABORT_CAUSE:
// P-Abort-cause
if (!localAis.isTagPrimitive())
throw new ParseException(PAbortCause.IncorrectTransactionPortion, "Error decoding TCAbortMessage: P_ABORT_CAUSE is not primitive");
int i1 = (int)localAis.readInteger();
this.pAbortCause = PAbortCause.getFromInt(i1);
break;
case DialogPortion._TAG_DIALOG_PORTION:
case TCAbortMessage._TAG_USER_ABORT_INFORMATION:
// Dialog portion (opt) + UserAbortInformation
if (tag == DialogPortion._TAG_DIALOG_PORTION) {
// Dialog portion
this.dp = TcapFactory.createDialogPortion(localAis);
if (localAis.available() == 0)
return;
tag = localAis.readTag();
}
// UserAbortInformation
if (tag != TCAbortMessage._TAG_USER_ABORT_INFORMATION || localAis.getTagClass() != Tag.CLASS_PRIVATE || localAis.isTagPrimitive())
throw new ParseException(PAbortCause.IncorrectTransactionPortion,
"Error decoding TCAbortMessage: bad tag or tagClass or is primitive for userAbortInformation, found tagClass="
+ localAis.getTagClass() + ", tag" + tag);
UserInformationElementImpl uai = new UserInformationElementImpl();
AsnInputStream localAis2 = localAis.readSequenceStream();
if (localAis2.available() > 0) {
tag = localAis2.readTag();
if (tag != Tag.EXTERNAL || localAis2.getTagClass() != Tag.CLASS_UNIVERSAL || localAis2.isTagPrimitive())
throw new ParseException(PAbortCause.IncorrectTransactionPortion,
"Error decoding TCAbortMessage: bad tag or tagClass or is primitive for userAbortInformation - External, found tagClass="
+ localAis2.getTagClass() + ", tag" + tag);
uai.decode(localAis2);
if (uai.isOid())
this.userAbortInformation = uai;
}
break;
default:
throw new ParseException(PAbortCause.IncorrectTransactionPortion,
"Error decoding TCAbortMessage: bad tag for P-Abort-cause, userInformation or abortCause, found tag=" + tag);
}
} catch (IOException e) {
throw new ParseException(PAbortCause.BadlyStructuredDialoguePortion, "IOException while decoding TCAbortMessage: " + e.getMessage(), e);
} catch (AsnException e) {
throw new ParseException(PAbortCause.BadlyStructuredDialoguePortion, "AsnException while decoding TCAbortMessage: " + 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 {
if (this.destinationTransactionId == null || this.destinationTransactionId.length != 4)
throw new EncodeException("Error while encoding TCAbortMessage: destinationTransactionId is not defined or has not a length 4");
if (this.pAbortCause == null && (this.dp == null && this.userAbortInformation == null))
throw new EncodeException("Error while encoding TCAbortMessage: neither PAbortCause nor DialogPortion/UserAbortInformation is defined");
if (this.pAbortCause != null && (this.dp != null || this.userAbortInformation != null))
throw new EncodeException("Error while encoding TCAbortMessage: both PAbortCause and DialogPortion/UserAbortInformation is defined");
try {
aos.writeTag(Tag.CLASS_PRIVATE, false, TCAbortMessage._TAG_ABORT);
int pos = aos.StartContentDefiniteLength();
aos.writeOctetString(Tag.CLASS_PRIVATE, TCQueryMessage._TAG_TRANSACTION_ID, this.destinationTransactionId);
if(this.pAbortCause!=null){
aos.writeInteger(Tag.CLASS_PRIVATE, TCAbortMessage._TAG_P_ABORT_CAUSE, this.pAbortCause.getType());
} else {
if (this.dp != null)
this.dp.encode(aos);
if (this.userAbortInformation != null) {
aos.writeTag(Tag.CLASS_PRIVATE, false, TCAbortMessage._TAG_USER_ABORT_INFORMATION);
int pos2 = aos.StartContentDefiniteLength();
((UserInformationElementImpl) this.userAbortInformation).encode(aos);
aos.FinalizeContent(pos2);
} else {
aos.writeTag(Tag.CLASS_PRIVATE, false, TCAbortMessage._TAG_USER_ABORT_INFORMATION);
aos.writeLength(0);
}
}
aos.FinalizeContent(pos);
} catch (IOException e) {
throw new EncodeException("IOException while encoding TCAbortMessage: " + e.getMessage(), e);
} catch (AsnException e) {
throw new EncodeException("AsnException while encoding TCAbortMessage: " + e.getMessage(), e);
}
}
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("TCAbortMessage [");
if (this.destinationTransactionId != null) {
sb.append("destinationTransactionId=[");
sb.append(Arrays.toString(this.destinationTransactionId));
sb.append("], ");
}
if (this.pAbortCause != null) {
sb.append("PAbortCause=");
sb.append(this.pAbortCause);
sb.append(", ");
}
if (this.dp != null) {
sb.append("DialogPortion=");
sb.append(this.dp);
sb.append(", ");
}
if (this.userAbortInformation != null) {
sb.append("userAbortInformation=");
sb.append(this.userAbortInformation);
}
sb.append("]");
return sb.toString();
}
}