package ie.omk.smpp.message;
import ie.omk.smpp.Address;
import java.io.OutputStream;
/**
* Alert notification. This packet type is sent from the SMSC to an ESME to
* signal that a particular mobile subscriber has become available and a
* delivery pending flag had previously been set for that subscriber by a
* <code>data_sm</code> packet.
* <p>
* Note that there is no response packet to an <code>alert_notification</code>.
*
* @version 1.0
* @author Oran Kelly
*/
public class AlertNotification extends SMPPRequest {
/**
* Create a new alert_notification object.
*/
public AlertNotification() {
super(ALERT_NOTIFICATION);
}
/**
* Create a new alert_notification object with sequence number
* <code>seqNum</code>.
*/
public AlertNotification(int seqNum) {
super(ALERT_NOTIFICATION, seqNum);
}
public int getBodyLength() {
return ((source != null) ? source.getLength() : 3)
+ ((destination != null) ? destination.getLength() : 3);
}
public void encodeBody(OutputStream out) throws java.io.IOException {
if (source != null) {
source.writeTo(out);
} else {
new Address().writeTo(out);
}
if (destination != null) {
destination.writeTo(out);
} else {
new Address().writeTo(out);
}
}
public void readBodyFrom(byte[] body, int offset)
throws SMPPProtocolException {
source = new Address();
source.readFrom(body, offset);
offset += source.getLength();
destination = new Address();
destination.readFrom(body, offset);
}
public String toString() {
return "alert_notification";
}
}