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/*
* 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.comp.Component;
import org.mobicents.protocols.ss7.tcapAnsi.api.asn.comp.PAbortCause;
import org.mobicents.protocols.ss7.tcapAnsi.api.asn.comp.TCConversationMessage;
import org.mobicents.protocols.ss7.tcapAnsi.api.asn.comp.TCQueryMessage;
/**
* @author baranowb
* @author sergey vetyutnev
*
*/
public class TCConversationMessageImpl implements TCConversationMessage {
private boolean dialogTermitationPermission;
private byte[] originatingTransactionId;
private byte[] destinationTransactionId;
private DialogPortion dp;
private Component[] component;
@Override
public boolean getDialogTermitationPermission() {
return dialogTermitationPermission;
}
@Override
public void setDialogTermitationPermission(boolean perm) {
dialogTermitationPermission = perm;
}
/*
* (non-Javadoc)
*
* @see org.mobicents.protocols.ss7.tcap.asn.comp.TCBeginMessage#getComponent()
*/
public Component[] getComponent() {
return this.component;
}
/*
* (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[] getOriginatingTransactionId() {
return this.originatingTransactionId;
}
/*
* (non-Javadoc)
*
* @see org.mobicents.protocols.ss7.tcap.asn.comp.TCBeginMessage#setComponent
* (org.mobicents.protocols.ss7.tcap.asn.comp.Component[])
*/
public void setComponent(Component[] c) {
this.component = c;
}
/*
* (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 setOriginatingTransactionId(byte[] t) {
if (t != null && t.length != 4)
throw new IllegalArgumentException("TransactionId leng must be 4 bytes, found: " + t.length);
this.originatingTransactionId = t;
}
@Override
public byte[] getDestinationTransactionId() {
return destinationTransactionId;
}
@Override
public void setDestinationTransactionId(byte[] t) {
if (t != null && t.length != 4)
throw new IllegalArgumentException("TransactionId leng must be 4 bytes, found: " + t.length);
destinationTransactionId = t;
}
/*
* (non-Javadoc)
*
* @see org.mobicents.protocols.ss7.tcap.asn.Encodable#decode(org.mobicents.protocols .asn.AsnInputStream)
*/
public void decode(AsnInputStream ais) throws ParseException {
this.dialogTermitationPermission = false;
this.originatingTransactionId = null;
this.destinationTransactionId = null;
this.dp = null;
this.component = null;
try {
if (ais.getTag() == TCConversationMessage._TAG_CONVERSATION_WITH_PERM)
dialogTermitationPermission = true;
else
dialogTermitationPermission = false;
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 TCConversationMessage: transactionId must contain both origination and resination transactionId");
}
this.originatingTransactionId = tid.getFirstElem();
this.destinationTransactionId = tid.getSecondElem();
// dialog portion
if (localAis.available() == 0) {
throw new ParseException(PAbortCause.UnrecognizedDialoguePortionID,
"Error decoding TCConversationMessage: neither dialog no component portion is found");
}
int tag = localAis.readTag();
if (tag == DialogPortion._TAG_DIALOG_PORTION) {
this.dp = TcapFactory.createDialogPortion(localAis);
if (localAis.available() == 0)
return;
tag = localAis.readTag();
}
// component portion
this.component = TcapFactory.readComponents(localAis);
} catch (IOException e) {
throw new ParseException(PAbortCause.BadlyStructuredDialoguePortion, "IOException while decoding TCConversationMessage: " + e.getMessage(), e);
} catch (AsnException e) {
throw new ParseException(PAbortCause.BadlyStructuredDialoguePortion, "AsnException while decoding TCConversationMessage: " + 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.originatingTransactionId == null || this.originatingTransactionId.length != 4)
throw new EncodeException("Error while encoding TCConversationMessage: originatingTransactionId is not defined or has not a length 4");
if (this.destinationTransactionId == null || this.destinationTransactionId.length != 4)
throw new EncodeException("Error while encoding TCConversationMessage: destinationTransactionId is not defined or has not a length 4");
// TODO: should we send a Component without both components and dialogPortion ?
if ((this.component == null || this.component.length == 0) && this.dp == null)
throw new EncodeException("Error while encoding TCConversationMessage: neither dialogPortion nor componentPortion is defined");
try {
if (this.dialogTermitationPermission)
aos.writeTag(Tag.CLASS_PRIVATE, false, TCConversationMessage._TAG_CONVERSATION_WITH_PERM);
else
aos.writeTag(Tag.CLASS_PRIVATE, false, TCConversationMessage._TAG_CONVERSATION_WITHOUT_PERM);
int pos = aos.StartContentDefiniteLength();
byte[] buf = new byte[8];
System.arraycopy(this.originatingTransactionId, 0, buf, 0, 4);
System.arraycopy(this.destinationTransactionId, 0, buf, 4, 4);
aos.writeOctetString(Tag.CLASS_PRIVATE, TCQueryMessage._TAG_TRANSACTION_ID, buf);
if (this.dp != null)
this.dp.encode(aos);
if (component != null && component.length > 0) {
aos.writeTag(Tag.CLASS_PRIVATE, false, TCQueryMessage._TAG_COMPONENT_SEQUENCE);
int pos2 = aos.StartContentDefiniteLength();
for (Component c : this.component) {
c.encode(aos);
}
aos.FinalizeContent(pos2);
}
aos.FinalizeContent(pos);
} catch (IOException e) {
throw new EncodeException("IOException while encoding TCConversationMessage: " + e.getMessage(), e);
} catch (AsnException e) {
throw new EncodeException("AsnException while encoding TCConversationMessage: " + e.getMessage(), e);
}
}
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("TCConversationMessage [");
sb.append("dialogTermitationPermission=");
sb.append(this.dialogTermitationPermission);
sb.append(", ");
if (this.originatingTransactionId != null) {
sb.append("originatingTransactionId=[");
sb.append(Arrays.toString(this.originatingTransactionId));
sb.append("], ");
}
if (this.destinationTransactionId != null) {
sb.append("destinationTransactionId=[");
sb.append(Arrays.toString(this.destinationTransactionId));
sb.append("], ");
}
if (this.dp != null) {
sb.append("DialogPortion=");
sb.append(this.dp);
sb.append(", ");
}
if (this.component != null && this.component.length > 0) {
sb.append("Components=[");
int i1 = 0;
for (Component comp : this.component) {
if (i1 == 0)
i1 = 1;
else
sb.append(", ");
sb.append(comp.toString());
}
sb.append("], ");
}
sb.append("]");
return sb.toString();
}
}
