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 vote down vote up
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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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 vote down vote up
@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());
}