/** Main dispatch method called from the LatherBoss. */
public LatherValue dispatch(LatherContext ctx, String method, LatherValue arg)
throws LatherRemoteException {
Integer agentId = null;
if (!haService.alertTriggersHaveInitialized()) {
if (log.isDebugEnabled()) {
log.debug("Not ready - received request for " + method + " from " + ctx.getCallerIP());
}
throw new LatherRemoteException("Server still initializing");
}
if (log.isDebugEnabled()) {
log.debug("Request for " + method + "() from " + ctx.getCallerIP());
}
if (!HAUtil.isMasterNode()) {
log.warn("Non-primary server received communication from an agent. Request will be denied.");
throw new LatherRemoteException(
"This server is not the primary node in the HA configuration. Agent request denied.");
}
if (secureCommands.contains(method)) {
if (!(arg instanceof SecureAgentLatherValue)) {
log.warn(
"Authenticated call made from "
+ ctx.getCallerIP()
+ " which did not subclass the correct authentication class");
throw new LatherRemoteException("Unauthorized agent denied");
}
String agentToken = ((SecureAgentLatherValue) arg).getAgentToken();
validateAgent(ctx, agentToken);
synchronized (tokensToTime) {
tokensToTime.put(agentToken, System.currentTimeMillis());
}
try {
Agent a = agentManager.getAgent(agentToken);
agentId = a.getId();
} catch (AgentNotFoundException e) {
log.debug(e, e);
}
}
AgentConnection conn = null;
long start = 0;
try {
conn = agentManager.getAgentConnection(method, ctx.getCallerIP(), agentId);
start = now();
return runCommand(ctx, method, arg);
} catch (LatherRemoteException e) {
concurrentStatsCollector.addStat(1, LATHER_REMOTE_EXCEPTION);
throw e;
} finally {
if (conn != null) {
agentManager.disconnectAgent(conn);
}
long duration = now() - start;
concurrentStatsCollector.addStat(duration, LATHER_RUN_COMMAND_TIME);
}
}