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package parallel.tasks;

import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.CyclicBarrier;

public class SumSqrTask extends TaskBase {

    public SumSqrTask(final List data){
        super();
        this.data = data;
        this.result = 0.0;
    }

    public SumSqrTask(final List data, CyclicBarrier barrier){
        super(barrier);
        this.data = data;
        this.result = 0.0;
    }

    @Override
    public void run(){

        for (Object item: this.data) {
            Double val = (Double) item;
            this.result += val*val;
        }

        this.finished = true;

        if(this.barrier != null){
            this.waitOnBarrier();
        }
    }

    /**
     * Returns the result computed by the task
     */
    public Double getResult(){
        return this.result;
    }

    protected List getData(){
        return  this.data;
    }

    //private Double result;
    private List data;

}