package com.intrbiz.bergamot.worker.engine.agent;
import java.util.UUID;
import java.util.stream.Collectors;
import org.apache.log4j.Logger;
import com.intrbiz.bergamot.agent.server.BergamotAgentServerHandler;
import com.intrbiz.bergamot.model.message.agent.check.CheckProcess;
import com.intrbiz.bergamot.model.message.agent.stat.ProcessStat;
import com.intrbiz.bergamot.model.message.check.ExecuteCheck;
import com.intrbiz.bergamot.model.message.result.ActiveResultMO;
import com.intrbiz.bergamot.worker.engine.AbstractExecutor;
import com.intrbiz.gerald.polyakov.gauge.IntegerGaugeReading;
/**
* Check processes running on a Bergamot Agent
*/
public class ProcessesExecutor extends AbstractExecutor<AgentEngine>
{
public static final String NAME = "processes";
private Logger logger = Logger.getLogger(ProcessesExecutor.class);
public ProcessesExecutor()
{
super();
}
/**
* Only execute Checks where the engine == "agent"
*/
@Override
public boolean accept(ExecuteCheck task)
{
return AgentEngine.NAME.equals(task.getEngine()) && NAME.equals(task.getExecutor());
}
@Override
public void execute(ExecuteCheck executeCheck)
{
if (logger.isTraceEnabled()) logger.trace("Checking Bergamot Agent processes");
try
{
// check the host presence
UUID agentId = executeCheck.getAgentId();
if (agentId == null) throw new RuntimeException("No agent id was given");
// lookup the agent
BergamotAgentServerHandler agent = this.getEngine().getAgentServer().getRegisteredAgent(agentId);
if (agent != null)
{
// build the check
CheckProcess check = new CheckProcess();
check.setFlattenCommand(executeCheck.getBooleanParameter("flatten", false));
check.setRegex(executeCheck.getBooleanParameter("regex", false));
check.setListProcesses(true);
check.setTitle(executeCheck.getParameter("title"));
check.setCommand(executeCheck.getParameter("command"));
check.setUser(executeCheck.getParameter("user"));
check.setGroup(executeCheck.getParameter("group"));
check.setState(executeCheck.getParameterCSV("state").stream().collect(Collectors.toList()));
check.setArguments(executeCheck.getParametersStartingWithValues("argument"));
// get the process stats
long sent = System.nanoTime();
agent.sendMessageToAgent(check, (response) -> {
double runtime = ((double)(System.nanoTime() - sent)) / 1000_000D;
ProcessStat stat = (ProcessStat) response;
if (logger.isTraceEnabled()) logger.trace("Got processes in " + runtime + "ms: " + stat);
// apply the check
this.publishActiveResult(executeCheck, new ActiveResultMO().fromCheck(executeCheck).applyRange(
stat.getProcesses().size(),
executeCheck.getIntRangeParameter("warning", new Integer[] {1, 1}),
executeCheck.getIntRangeParameter("critical", new Integer[] {1, 1}),
"found " + stat.getProcesses().size() + " processes"
).runtime(runtime));
// readings
this.publishReading(executeCheck, new IntegerGaugeReading("processes", null, stat.getProcesses().size()));
});
}
else
{
// raise an error
this.publishActiveResult(executeCheck, new ActiveResultMO().fromCheck(executeCheck).disconnected("Bergamot Agent disconnected"));
}
}
catch (Exception e)
{
this.publishActiveResult(executeCheck, new ActiveResultMO().fromCheck(executeCheck).error(e));
}
}
}