/**
* Sends the prepared PDU packet to the manager and updates the data structure to expect a
* response. It acquires a lock on the socket to prevent a case where a response arrives before
* this thread could insert the request into the wait queue.
*
* @exception IOException Signals that an I/O exception of some sort has occurred.
*/
final void sendPduPacket(byte[] buffer, int length) throws java.io.IOException {
if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) {
SNMP_ADAPTOR_LOGGER.logp(
Level.FINER,
SnmpInformRequest.class.getName(),
"sendPduPacket",
"Send to peer. Peer/Port : "
+ address.getHostName()
+ "/"
+ port
+ ". Length = "
+ length
+ "\nDump : \n"
+ SnmpMessage.dumpHexBuffer(buffer, 0, length));
}
SnmpSocket theSocket = informSession.getSocket();
synchronized (theSocket) {
theSocket.sendPacket(buffer, length, address, port);
setRequestSentTime(System.currentTimeMillis());
}
}
boolean sendPdu() {
try {
responsePdu = null;
SnmpPduFactory pduFactory = adaptor.getPduFactory();
SnmpMessage msg =
(SnmpMessage)
pduFactory.encodeSnmpPdu(
(SnmpPduPacket) requestPdu, adaptor.getBufferSize().intValue());
if (msg == null) {
if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINEST)) {
SNMP_ADAPTOR_LOGGER.logp(
Level.FINEST,
SnmpInformRequest.class.getName(),
"sendPdu",
"pdu factory returned a null value");
}
throw new SnmpStatusException(snmpReqUnknownError);
// This exception will caught hereafter and reported as an snmpReqUnknownError
// FIXME: may be it's not the best behaviour ?
}
int maxPktSize = adaptor.getBufferSize().intValue();
byte[] encoding = new byte[maxPktSize];
int encodingLength = msg.encodeMessage(encoding);
if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINER)) {
SNMP_ADAPTOR_LOGGER.logp(
Level.FINER,
SnmpInformRequest.class.getName(),
"sendPdu",
"Dump : \n" + msg.printMessage());
}
sendPduPacket(encoding, encodingLength);
return true;
} catch (SnmpTooBigException ar) {
if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINEST)) {
SNMP_ADAPTOR_LOGGER.logp(
Level.FINEST,
SnmpInformRequest.class.getName(),
"sendPdu",
"Got unexpected exception",
ar);
}
setErrorStatusAndIndex(snmpReqPacketOverflow, ar.getVarBindCount());
requestPdu = null;
reason = ar.getMessage();
if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINEST)) {
SNMP_ADAPTOR_LOGGER.logp(
Level.FINEST,
SnmpInformRequest.class.getName(),
"sendPdu",
"Packet Overflow while building inform request");
}
} catch (java.io.IOException ioe) {
setErrorStatusAndIndex(snmpReqSocketIOError, 0);
reason = ioe.getMessage();
} catch (Exception e) {
if (SNMP_ADAPTOR_LOGGER.isLoggable(Level.FINEST)) {
SNMP_ADAPTOR_LOGGER.logp(
Level.FINEST,
SnmpInformRequest.class.getName(),
"sendPdu",
"Got unexpected exception",
e);
}
setErrorStatusAndIndex(snmpReqUnknownError, 0);
reason = e.getMessage();
}
return false;
}