/**
* Cancels or kills the task.
*
* @param cancel <code>true/code> if the task shall be canceled, <code>false</code> if it shall be killed
*/
private void cancelOrKillExecution() {
if (!this.canceled.compareAndSet(false, true)) {
return;
}
if (this.executionState != ExecutionState.RUNNING
&& this.executionState != ExecutionState.FINISHING) {
return;
}
executionStateChanged(ExecutionState.CANCELING, null);
// Request user code to shut down
try {
this.environment.cancelExecution();
} catch (Throwable e) {
LOG.error("Error while cancelling the task.", e);
}
}
/** Marks the task as failed and triggers the appropriate state changes. */
public void markAsFailed() {
executionStateChanged(ExecutionState.FAILED, "Execution thread died unexpectedly");
}