Java Code Examples for org.springframework.util.backoff.ExponentialBackOff#start()

The following examples show how to use org.springframework.util.backoff.ExponentialBackOff#start() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: FiatPermissionEvaluator.java From fiat with Apache License 2.0

6 votes

public <T> T retry(String description, Callable<T> callable) throws Exception {
  ExponentialBackOff backOff =
      new ExponentialBackOff(
          retryConfiguration.getInitialBackoffMillis(),
          retryConfiguration.getRetryMultiplier());
  backOff.setMaxElapsedTime(retryConfiguration.getMaxBackoffMillis());
  BackOffExecution backOffExec = backOff.start();
  while (true) {
    try {
      return callable.call();
    } catch (Throwable e) {
      long waitTime = backOffExec.nextBackOff();
      if (waitTime == BackOffExecution.STOP) {
        throw e;
      }
      log.warn(description + " failed. Retrying in " + waitTime + "ms", e);
      TimeUnit.MILLISECONDS.sleep(waitTime);
    }
  }
}

Example 2

Source File: ExponentialBackOffTests.java From spring-analysis-note with MIT License

6 votes

@Test
public void startReturnDifferentInstances() {
	ExponentialBackOff backOff = new ExponentialBackOff();
	backOff.setInitialInterval(2000L);
	backOff.setMultiplier(2.0);
	backOff.setMaxElapsedTime(4000L);

	BackOffExecution execution = backOff.start();
	BackOffExecution execution2 = backOff.start();

	assertEquals(2000L, execution.nextBackOff());
	assertEquals(2000L, execution2.nextBackOff());
	assertEquals(4000L, execution.nextBackOff());
	assertEquals(4000L, execution2.nextBackOff());
	assertEquals(BackOffExecution.STOP, execution.nextBackOff());
	assertEquals(BackOffExecution.STOP, execution2.nextBackOff());
}

Example 3

Source File: ExponentialBackOffTests.java From spring4-understanding with Apache License 2.0

6 votes

@Test
public void startReturnDifferentInstances() {
	ExponentialBackOff backOff = new ExponentialBackOff();
	backOff.setInitialInterval(2000L);
	backOff.setMultiplier(2.0);
	backOff.setMaxElapsedTime(4000L);

	BackOffExecution execution = backOff.start();
	BackOffExecution execution2 = backOff.start();

	assertEquals(2000l, execution.nextBackOff());
	assertEquals(2000l, execution2.nextBackOff());
	assertEquals(4000l, execution.nextBackOff());
	assertEquals(4000l, execution2.nextBackOff());
	assertEquals(BackOffExecution.STOP, execution.nextBackOff());
	assertEquals(BackOffExecution.STOP, execution2.nextBackOff());
}

Example 4

Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License

6 votes

@Test
public void startReturnDifferentInstances() {
	ExponentialBackOff backOff = new ExponentialBackOff();
	backOff.setInitialInterval(2000L);
	backOff.setMultiplier(2.0);
	backOff.setMaxElapsedTime(4000L);

	BackOffExecution execution = backOff.start();
	BackOffExecution execution2 = backOff.start();

	assertEquals(2000L, execution.nextBackOff());
	assertEquals(2000L, execution2.nextBackOff());
	assertEquals(4000L, execution.nextBackOff());
	assertEquals(4000L, execution2.nextBackOff());
	assertEquals(BackOffExecution.STOP, execution.nextBackOff());
	assertEquals(BackOffExecution.STOP, execution2.nextBackOff());
}

Example 5

Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License

5 votes

@Test
public void fixedIncrease() {
	ExponentialBackOff backOff = new ExponentialBackOff(100L, 1.0);
	backOff.setMaxElapsedTime(300L);

	BackOffExecution execution = backOff.start();
	assertEquals(100L, execution.nextBackOff());
	assertEquals(100L, execution.nextBackOff());
	assertEquals(100L, execution.nextBackOff());
	assertEquals(BackOffExecution.STOP, execution.nextBackOff());
}

Example 6

Source File: ExponentialBackOffTests.java From spring4-understanding with Apache License 2.0

5 votes

@Test
public void maxIntervalReached() {
	ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0);
	backOff.setMaxInterval(4000L);

	BackOffExecution execution = backOff.start();
	assertEquals(2000l, execution.nextBackOff());
	assertEquals(4000l, execution.nextBackOff());
	assertEquals(4000l, execution.nextBackOff()); // max reached
	assertEquals(4000l, execution.nextBackOff());
}

Example 7

Source File: ExponentialBackOffTests.java From spring4-understanding with Apache License 2.0

5 votes

@Test
public void simpleIncrease() {
	ExponentialBackOff backOff = new ExponentialBackOff(100L, 2.0);
	BackOffExecution execution = backOff.start();
	assertEquals(100l, execution.nextBackOff());
	assertEquals(200l, execution.nextBackOff());
	assertEquals(400l, execution.nextBackOff());
	assertEquals(800l, execution.nextBackOff());
}

Example 8

Source File: ExponentialBackOffTests.java From spring4-understanding with Apache License 2.0

5 votes

@Test
public void defaultInstance() {
	ExponentialBackOff backOff = new ExponentialBackOff();
	BackOffExecution execution = backOff.start();
	assertEquals(2000l, execution.nextBackOff());
	assertEquals(3000l, execution.nextBackOff());
	assertEquals(4500l, execution.nextBackOff());
}

Example 9

Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License

5 votes

@Test
public void toStringContent() {
	ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0);
	BackOffExecution execution = backOff.start();
	assertEquals("ExponentialBackOff{currentInterval=n/a, multiplier=2.0}", execution.toString());
	execution.nextBackOff();
	assertEquals("ExponentialBackOff{currentInterval=2000ms, multiplier=2.0}", execution.toString());
	execution.nextBackOff();
	assertEquals("ExponentialBackOff{currentInterval=4000ms, multiplier=2.0}", execution.toString());
}

Example 10

Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License

5 votes

@Test
public void maxAttemptsReached() {
	ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0);
	backOff.setMaxElapsedTime(4000L);

	BackOffExecution execution = backOff.start();
	assertEquals(2000L, execution.nextBackOff());
	assertEquals(4000L, execution.nextBackOff());
	assertEquals(BackOffExecution.STOP, execution.nextBackOff()); // > 4 sec wait in total
}

Example 11

Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License

5 votes

@Test
public void maxIntervalReached() {
	ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0);
	backOff.setMaxInterval(4000L);

	BackOffExecution execution = backOff.start();
	assertEquals(2000L, execution.nextBackOff());
	assertEquals(4000L, execution.nextBackOff());
	assertEquals(4000L, execution.nextBackOff()); // max reached
	assertEquals(4000L, execution.nextBackOff());
}

Example 12

Source File: ExponentialBackOffTests.java From spring-analysis-note with MIT License

5 votes

@Test
public void defaultInstance() {
	ExponentialBackOff backOff = new ExponentialBackOff();
	BackOffExecution execution = backOff.start();
	assertEquals(2000L, execution.nextBackOff());
	assertEquals(3000L, execution.nextBackOff());
	assertEquals(4500L, execution.nextBackOff());
}

Example 13

Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License

5 votes

@Test
public void simpleIncrease() {
	ExponentialBackOff backOff = new ExponentialBackOff(100L, 2.0);
	BackOffExecution execution = backOff.start();
	assertEquals(100L, execution.nextBackOff());
	assertEquals(200L, execution.nextBackOff());
	assertEquals(400L, execution.nextBackOff());
	assertEquals(800L, execution.nextBackOff());
}

Example 14

Source File: ExponentialBackOffTests.java From java-technology-stack with MIT License

5 votes

@Test
public void defaultInstance() {
	ExponentialBackOff backOff = new ExponentialBackOff();
	BackOffExecution execution = backOff.start();
	assertEquals(2000L, execution.nextBackOff());
	assertEquals(3000L, execution.nextBackOff());
	assertEquals(4500L, execution.nextBackOff());
}

Example 15

Source File: RetrofitConfig.java From fiat with Apache License 2.0

5 votes

@Override
public Response intercept(Chain chain) throws IOException {
  ExponentialBackOff backoff = new ExponentialBackOff();
  backoff.setMaxElapsedTime(maxElapsedBackoffMs);
  BackOffExecution backOffExec = backoff.start();

  Response response = null;
  long waitTime = 0;
  while (waitTime != BackOffExecution.STOP) {
    Request request = chain.request();
    response = chain.proceed(request);
    if (response.isSuccessful()
        || NON_RETRYABLE_METHODS.contains(request.method())
        || response.code() == 404) {
      return response;
    }

    try {
      waitTime = backOffExec.nextBackOff();
      if (waitTime != BackOffExecution.STOP) {
        if (response.body() != null) {
          response.body().close();
        }
        log.warn(
            "Request for "
                + request.url().toString()
                + " failed. Backing off for "
                + waitTime
                + "ms");
        Thread.sleep(waitTime);
      }
    } catch (Throwable ignored) {
      break;
    }
  }
  return response;
}

Example 16

Source File: ExponentialBackOffTests.java From spring-analysis-note with MIT License

5 votes

@Test
public void maxIntervalReachedImmediately() {
	ExponentialBackOff backOff = new ExponentialBackOff(1000L, 2.0);
	backOff.setMaxInterval(50L);

	BackOffExecution execution = backOff.start();
	assertEquals(50L, execution.nextBackOff());
	assertEquals(50L, execution.nextBackOff());
}

Example 17

Source File: ExponentialBackOffTests.java From spring-analysis-note with MIT License

5 votes

@Test
public void maxIntervalReached() {
	ExponentialBackOff backOff = new ExponentialBackOff(2000L, 2.0);
	backOff.setMaxInterval(4000L);

	BackOffExecution execution = backOff.start();
	assertEquals(2000L, execution.nextBackOff());
	assertEquals(4000L, execution.nextBackOff());
	assertEquals(4000L, execution.nextBackOff()); // max reached
	assertEquals(4000L, execution.nextBackOff());
}

Example 18

Source File: RetryCommand.java From mojito with Apache License 2.0

5 votes

@Override
public void execute() throws CommandException {

    List<String> commandToExecute = getCommandToExecute();

    ExponentialBackOff exponentialBackOff = new ExponentialBackOff(initialInterval, multiplier);
    BackOffExecution backOffExecution = exponentialBackOff.start();

    int numberOfAttempts = 0;
    int exitCode = -1;

    while (exitCode !=0 && numberOfAttempts < maxNumberOfAttempts) {
        try {
            numberOfAttempts++;
            exitCode = executeCommand(commandToExecute);

            if (exitCode != 0) {
                consoleWriter.a("Attempt: ").fg(Ansi.Color.CYAN)
                        .a(numberOfAttempts).a("/").a(maxNumberOfAttempts).reset()
                        .a(" failed. ");
                        
                if (numberOfAttempts < maxNumberOfAttempts) {
                    long nextBackOff = backOffExecution.nextBackOff();
                    consoleWriter.a("Retry in ").fg(Ansi.Color.CYAN).a(nextBackOff / 1000.0).reset().a(" seconds").println();
                    Thread.sleep(nextBackOff);
                } else {
                    consoleWriter.a("Abort").println();
                }
            }
        } catch (CommandException ce) {
            throw ce;
        } catch (Throwable t) {
            throw new CommandException("Couldn't run command with retry", t);
        }
    }

    if (exitCode != 0) {
        throw new CommandWithExitStatusException(exitCode);
    }
}

Example 19

Source File: ExponentialBackOffTests.java From spring-analysis-note with MIT License

5 votes

@Test
public void simpleIncrease() {
	ExponentialBackOff backOff = new ExponentialBackOff(100L, 2.0);
	BackOffExecution execution = backOff.start();
	assertEquals(100L, execution.nextBackOff());
	assertEquals(200L, execution.nextBackOff());
	assertEquals(400L, execution.nextBackOff());
	assertEquals(800L, execution.nextBackOff());
}

Example 20

Source File: ExponentialBackOffTests.java From spring4-understanding with Apache License 2.0

4 votes

@Test
public void maxIntervalReachedImmediately() {
	ExponentialBackOff backOff = new ExponentialBackOff(1000L, 2.0);
	backOff.setMaxInterval(50L);

	BackOffExecution execution = backOff.start();
	assertEquals(50L, execution.nextBackOff());
	assertEquals(50L, execution.nextBackOff());
}