Java Thread Callable repeatedlyTry(Callable task, int maxRounds, long backoff)

Description

repeatedly Try

License

Open Source License

Declaration

public static <T> T repeatedlyTry(Callable<T> task, int maxRounds,
            long backoff) throws Exception 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.LinkedList;
import java.util.List;

import java.util.concurrent.Callable;

public class Main {
    public static <T> T repeatedlyTry(Callable<T> task, int maxRounds,
            long backoff) throws Exception {
        List<Exception> list = new LinkedList<Exception>();
        int round = 0;
        while (round++ < maxRounds) {
            try {
                return task.call();
            } catch (Exception e) {
                list.add(e);/*from  w  w w  .  ja v  a2 s . com*/
                try {
                    Thread.sleep(backoff);
                } catch (InterruptedException e1) {
                    e1.printStackTrace();
                }
            }
        }
        throw new Exception("can't run: " + list);
    }
}

Related

1. invokeAll(Collection> tasks, ExecutorService executorService)
2. invokeBulkActions(Collection> tasks)
3. max(final double[] a, final double[] b)
4. minScalar(final double[] a, final double scalar)
5. powerTo(final double base, final double[] exponents)
6. resolveCompositeKey(final String key, final Map props)
7. resolveSingle(Object object)
8. runAndRethrowRuntimeExceptionOnFailure(final Callable operation, final String exceptionMessage)
9. runConcurrently(final Callable task)