use of com.cloud.agent.api.UpgradeCommand in project CloudStack-archive by CloudStack-extras.
the class Agent method processRequest.
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()) {
// this is a hack to make sure we do NOT log the ssh keys
if ((cmd instanceof ModifySshKeysCommand)) {
s_logger.debug("Received the request for command: ModifySshKeysCommand");
} else {
if (// ensures request is logged only once per method call
!requestLogged) {
s_logger.debug("Request:" + request.toString());
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 UpgradeCommand) {
final UpgradeCommand upgrade = (UpgradeCommand) cmd;
answer = upgradeAgent(upgrade.getUpgradeUrl(), upgrade);
} 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 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 {
_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()) {
s_logger.debug(response != null ? response.toString() : "response is null");
}
if (response != null) {
try {
link.send(response.toBytes());
} catch (final ClosedChannelException e) {
s_logger.warn("Unable to send response: " + response.toString());
}
}
}
}
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