com.thegoate.reflection.Executioner Maven / Gradle / Ivy
package com.thegoate.reflection;
import com.thegoate.logging.BleatBox;
import com.thegoate.logging.BleatFactory;
import com.thegoate.reflection.test.SkipThread;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
public class Executioner {
BleatBox LOG = BleatFactory.getLogger(getClass());
int threadPoolSize = 1;
public Executioner(){
}
public Executioner(int threadPoolSize){
this.threadPoolSize = threadPoolSize;
}
public boolean process(List threads) {
ExecutorService es = Executors.newFixedThreadPool(threadPoolSize);
boolean running = true;
int expected = threads.size();
List> futures = new ArrayList<>();
for (T thread:threads) {
if(thread instanceof Thread && !(thread instanceof SkipThread)) {
futures.add(es.submit((Thread)thread));
}
}
int completed = 0;
while(running){
running = false;
completed = 0;
for(Future f:futures){
if(!f.isDone()){
running = true;
} else {
completed++;
}
}
}
try {
LOG.debug("shutting down executor");
es.shutdown();
es.awaitTermination(5, TimeUnit.SECONDS);
}
catch (InterruptedException e) {
LOG.error("interrupted: " + e.getMessage(), e);
}
finally {
if (!es.isTerminated()) {
LOG.error("force cancel non-finished tasks");
}
es.shutdownNow();
LOG.debug("shutdown finished");
}
return expected==completed;
}
}