Class ThreadJobExecutor

All Implemented Interfaces:

public class ThreadJobExecutor
extends Object
implements JobExecutor
This is a job executor which executes jobs in the current thread. This has the disadvantage that a misbehaving job can interfere with other jobs and the job agent. For example, a call to System.exit(int) would result in all other jobs as well as the job agent getting killed.

The advantage is that there is no overhead in time or memory.

Last modified
$Date: 2021-06-04 12:40:45 +0200 (Fri, 04 Jun 2021) $
  • Field Details

    • log

      private static final org.slf4j.Logger log
      Log job agent events.
    • signalReceiver

      private SignalReceiver signalReceiver
  • Constructor Details

    • ThreadJobExecutor

      public ThreadJobExecutor()
  • Method Details

    • init

      public void init​(Agent agent)
      Description copied from interface: JobExecutor
      Initialize the job executor. This method is called once immediately after the object has been created.
      Specified by:
      init in interface JobExecutor
      agent - The agent
    • executeJob

      public void executeJob​(SessionControl sc, Agent agent, Job job, JobAgentSettings settings, Job.ExecutionTime usedSlot)
      Description copied from interface: JobExecutor
      Execute the specified job. This method is called in a new thread created specifically for running that job. If the agent is shutting down it will send an interrupt signal to all job threads. It is up to the job executor to decide how to handle this. It may either decide to kill the job or let it continue as if nothing happened.

      The job sent to this method has it's status set to Job.Status.PREPARED. The implementation of this method must change the status to either Job.Status.DONE or Job.Status.ERROR. If the status hasn't changed the job agent will set the status to signal an unknown error.

      Specified by:
      executeJob in interface JobExecutor
      sc - A SessionControl where the owner of the job is logged in and the correct active project is set
      agent - The agent that sent the request to execute the job
      job - The job to execute
      settings - The specific settings used for the plugin on this job agent or null if no settings has been specified
      usedSlot - The slot that was used to execut the job
    • close

      public void close()
      Description copied from interface: JobExecutor
      This method is called at when the agent is stopped or paused. No more execution requests will be sent to the current job executor, but running jobs should NOT be terminated due to this method beeing called.
      Specified by:
      close in interface JobExecutor
    • setSignalReceiver

      private void setSignalReceiver​(SignalReceiver signalReceiver)
    • main

      public static void main​(String[] args)