@Override
protected void preStart() {
for (final SshPollIdentifier pollInfo : polls.keySet()) {
Set<SshPollConfig<?>> configs = polls.get(pollInfo);
long minPeriod = Integer.MAX_VALUE;
Set<AttributePollHandler<SshPollValue>> handlers = Sets.newLinkedHashSet();
for (SshPollConfig<?> config : configs) {
handlers.add(new AttributePollHandler<SshPollValue>(config, entity, this));
if (config.getPeriod() > 0) minPeriod = Math.min(minPeriod, config.getPeriod());
}
getPoller()
.scheduleAtFixedRate(
new Callable<SshPollValue>() {
public SshPollValue call() throws Exception {
return exec(pollInfo.command, pollInfo.env);
}
},
new DelegatingPollHandler(handlers),
minPeriod);
}
}
protected SshFeed(Builder builder) {
super(builder.entity);
machine =
checkNotNull(
builder.machine != null ? builder.machine : getMachineOfEntity(builder.entity),
"machine");
execAsCommand = builder.execAsCommand;
for (SshPollConfig<?> config : builder.polls) {
SshPollConfig<?> configCopy = new SshPollConfig(config);
if (configCopy.getPeriod() < 0) configCopy.period(builder.period, builder.periodUnits);
String command = config.getCommand();
Map<String, String> env = config.getEnv();
polls.put(new SshPollIdentifier(command, env), configCopy);
}
}