s_logger.info("Startup Response Received: agent id = " + getId());
}
protected void processRequest(final Request request, final Link link) {
boolean requestLogged = false;
Response response = null;
try {
final Command[] cmds = request.getCommands();
final Answer[] answers = new Answer[cmds.length];
for (int i = 0; i < cmds.length; i++) {
final Command cmd = cmds[i];
Answer answer;
try {
if (s_logger.isDebugEnabled()) {
if (!requestLogged) // ensures request is logged only once per method call
{
String requestMsg = request.toString();
if (requestMsg != null) {
s_logger.debug("Request:" + requestMsg);
}
requestLogged = true;
}
s_logger.debug("Processing command: " + cmd.toString());
}
if (cmd instanceof CronCommand) {
final CronCommand watch = (CronCommand)cmd;
scheduleWatch(link, request, watch.getInterval() * 1000, watch.getInterval() * 1000);
answer = new Answer(cmd, true, null);
} else if (cmd instanceof ShutdownCommand) {
ShutdownCommand shutdown = (ShutdownCommand)cmd;
s_logger.debug("Received shutdownCommand, due to: " + shutdown.getReason());
cancelTasks();
_reconnectAllowed = false;
answer = new Answer(cmd, true, null);
} else if (cmd instanceof ReadyCommand && ((ReadyCommand)cmd).getDetails() != null) {
s_logger.debug("Not ready to connect to mgt server: " + ((ReadyCommand)cmd).getDetails());
System.exit(1);
return;
} else if (cmd instanceof MaintainCommand) {
s_logger.debug("Received maintainCommand");
cancelTasks();
_reconnectAllowed = false;
answer = new MaintainAnswer((MaintainCommand)cmd);
} else if (cmd instanceof AgentControlCommand) {
answer = null;
synchronized (_controlListeners) {
for (IAgentControlListener listener : _controlListeners) {
answer = listener.processControlRequest(request, (AgentControlCommand)cmd);
if (answer != null) {
break;
}
}
}
if (answer == null) {
s_logger.warn("No handler found to process cmd: " + cmd.toString());
answer = new AgentControlAnswer(cmd);
}
} else {
if (cmd instanceof ReadyCommand) {
processReadyCommand(cmd);
}
_inProgress.incrementAndGet();
try {
answer = _resource.executeRequest(cmd);
} finally {
_inProgress.decrementAndGet();
}
if (answer == null) {
s_logger.debug("Response: unsupported command" + cmd.toString());
answer = Answer.createUnsupportedCommandAnswer(cmd);
}
}
} catch (final Throwable th) {
s_logger.warn("Caught: ", th);
final StringWriter writer = new StringWriter();
th.printStackTrace(new PrintWriter(writer));
answer = new Answer(cmd, false, writer.toString());
}
answers[i] = answer;
if (!answer.getResult() && request.stopOnError()) {
for (i++; i < cmds.length; i++) {
answers[i] = new Answer(cmds[i], false, "Stopped by previous failure");
}
break;
}
}
response = new Response(request, answers);
} finally {
if (s_logger.isDebugEnabled()) {
String responseMsg = response.toString();
if (responseMsg != null) {
s_logger.debug(response.toString());
}
}
if (response != null) {
try {
link.send(response.toBytes());
} catch (final ClosedChannelException e) {
s_logger.warn("Unable to send response: " + response.toString());
}
}
}
}