Java Code Examples for org.springframework.retry.policy.SimpleRetryPolicy#setMaxAttempts()

public static void main(String[] args) throws Exception {
    RetryTemplate template = new RetryTemplate();

    // 策略
    SimpleRetryPolicy policy = new SimpleRetryPolicy();
    policy.setMaxAttempts(2);
    template.setRetryPolicy(policy);

    String result = template.execute(
            new RetryCallback<String, Exception>() {
                @Override
                public String doWithRetry(RetryContext arg0) {
                    throw new NullPointerException();
                }
            }
            ,
            new RecoveryCallback<String>() {
                @Override
                public String recover(RetryContext context) {
                    return "recovery callback";
                }
            }
    );

    LOGGER.info("result: {}", result);
}
 

private String processRemoteUrl(@NotNull final String path) throws IOException {
	final File copy = File.createTempFile("webapptester", ".feature");

	try {
		final RetryTemplate template = new RetryTemplate();
		final SimpleRetryPolicy policy = new SimpleRetryPolicy();
		policy.setMaxAttempts(Constants.URL_COPY_RETRIES);
		template.setRetryPolicy(policy);
		return template.execute(context -> {
			FileUtils.copyURLToFile(new URL(path), copy);
			return FileUtils.readFileToString(copy, Charset.defaultCharset());
		});
	} finally {
		FileUtils.deleteQuietly(copy);
	}
}
 

private List<File> processRemoteUrl(@NotNull final String path) throws IOException {
	final File copy = File.createTempFile("webapptester", ".feature");

	try {
		final RetryTemplate template = new RetryTemplate();
		final SimpleRetryPolicy policy = new SimpleRetryPolicy();
		policy.setMaxAttempts(Constants.URL_COPY_RETRIES);
		template.setRetryPolicy(policy);
		template.execute(context -> {
			FileUtils.copyURLToFile(new URL(path), copy);
			return null;
		});

		return Arrays.asList(copy);
	} catch (final FileNotFoundException ex) {
		/*
			Don't leave an empty file hanging around
		 */
		FileUtils.deleteQuietly(copy);
		throw new RemoteFeatureException("The remote file could not be downloaded."
			+ " Either the URL was invalid, or the path was actually supposed to reference a"
			+ " local file but that file could not be found an so was assumed to be a URL.",  ex);
	}
}
 

@Before
public void init() {
    final HttpBroadcasterSettings settings = new HttpBroadcasterSettings();
    settings.setBlockEventsUrl("http://localhost:8082/consumer/block-event");
    settings.setContractEventsUrl("http://localhost:8082/consumer/contract-event");

    RetryTemplate retryTemplate = new RetryTemplate();

    FixedBackOffPolicy fixedBackOffPolicy = new FixedBackOffPolicy();
    fixedBackOffPolicy.setBackOffPeriod(3000l);
    retryTemplate.setBackOffPolicy(fixedBackOffPolicy);

    SimpleRetryPolicy retryPolicy = new SimpleRetryPolicy();
    retryPolicy.setMaxAttempts(3);
    retryTemplate.setRetryPolicy(retryPolicy);

    underTest = new HttpBlockchainEventBroadcaster(settings, retryTemplate);
}
 

private String retrieveStringFromRemoteFile(@NotNull final String remoteFileName)  {
	checkArgument(StringUtils.isNoneBlank(remoteFileName));

	File copy = null;
	try {
		copy = File.createTempFile("capabilities", ".tmp");

		final File finalCopy = copy;
		final RetryTemplate template = new RetryTemplate();
		final SimpleRetryPolicy policy = new SimpleRetryPolicy();
		policy.setMaxAttempts(Constants.URL_COPY_RETRIES);
		template.setRetryPolicy(policy);
		template.execute(context -> {
			FileUtils.copyURLToFile(new URL(remoteFileName), finalCopy, TIMEOUT, TIMEOUT);
			return null;
		});

		return retrieveStringFromLocalFile(copy.getAbsolutePath());
	} catch (final IOException ex) {
		throw new ConfigurationException(ex);
	} finally {
		if (copy != null) {
			FileUtils.deleteQuietly(copy);
		}
	}
}
 

@Override
public void afterPropertiesSet() {
	if (this.metadataRetryOperations == null) {
		RetryTemplate retryTemplate = new RetryTemplate();

		SimpleRetryPolicy simpleRetryPolicy = new SimpleRetryPolicy();
		simpleRetryPolicy.setMaxAttempts(10);
		retryTemplate.setRetryPolicy(simpleRetryPolicy);

		ExponentialBackOffPolicy backOffPolicy = new ExponentialBackOffPolicy();
		backOffPolicy.setInitialInterval(100);
		backOffPolicy.setMultiplier(2);
		backOffPolicy.setMaxInterval(1000);
		retryTemplate.setBackOffPolicy(backOffPolicy);
		this.metadataRetryOperations = retryTemplate;
	}
}
 

@Bean
public RetryTemplate retryTemplate() {
    SimpleRetryPolicy retryPolicy = new SimpleRetryPolicy();
    retryPolicy.setMaxAttempts(5);

    ExponentialRandomBackOffPolicy exponentialRandomBackOffPolicy = new ExponentialRandomBackOffPolicy();
    exponentialRandomBackOffPolicy.setInitialInterval(10);
    exponentialRandomBackOffPolicy.setMultiplier(3);
    exponentialRandomBackOffPolicy.setMaxInterval(5000);

    RetryTemplate template = new RetryTemplate();
    template.setRetryPolicy(retryPolicy);
    template.setBackOffPolicy(exponentialRandomBackOffPolicy);
    template.setThrowLastExceptionOnExhausted(true);

    return template;
}
 

private static RetryTemplate createRetryTemplate(RetryPolicy policy) {
	RetryTemplate template = new RetryTemplate();
	// 重试策略
	SimpleRetryPolicy retryPolicy = new SimpleRetryPolicy();
	retryPolicy.setMaxAttempts(policy.getMaxAttempts());
	// 设置间隔策略
	FixedBackOffPolicy backOffPolicy = new FixedBackOffPolicy();
	backOffPolicy.setBackOffPeriod(policy.getSleepMillis());
	template.setRetryPolicy(retryPolicy);
	template.setBackOffPolicy(backOffPolicy);
	return template;
}
 

private RetryTemplate createRetryTemplate(RabbitProperties.Retry properties) {
    RetryTemplate template = new RetryTemplate();
    SimpleRetryPolicy policy = new SimpleRetryPolicy();
    policy.setMaxAttempts(properties.getMaxAttempts());
    template.setRetryPolicy(policy);
    ExponentialBackOffPolicy backOffPolicy = new ExponentialBackOffPolicy();
    backOffPolicy.setInitialInterval(properties.getInitialInterval());
    backOffPolicy.setMultiplier(properties.getMultiplier());
    backOffPolicy.setMaxInterval(properties.getMaxInterval());
    template.setBackOffPolicy(backOffPolicy);
    return template;
}
 

@Override
public RetryTemplate getRetryTemplate() {
	final SimpleRetryPolicy policy = new SimpleRetryPolicy();
	policy.setMaxAttempts(Constants.WEBDRIVER_ACTION_RETRIES);

	final ExponentialBackOffPolicy backoff = new ExponentialBackOffPolicy();
	backoff.setInitialInterval(RETRY_INTERVAL);

	final RetryTemplate template = new RetryTemplate();
	template.setRetryPolicy(policy);
	template.setBackOffPolicy(backoff);
	return template;
}
 

private RetryTemplate createRetryTemplate (Accessor aWebhook) {
  MapObject retryParams = aWebhook.get("retry",MapObject.class,new MapObject());
  RetryTemplate retryTemplate = new RetryTemplate();
  ExponentialBackOffPolicy backOffPolicy = new ExponentialBackOffPolicy();
  backOffPolicy.setInitialInterval(retryParams.getDuration("initialInterval", "2s").toMillis());
  backOffPolicy.setMaxInterval(retryParams.getDuration("maxInterval", "30s").toMillis());
  backOffPolicy.setMultiplier(retryParams.getDouble("multiplier",2.0));
  retryTemplate.setBackOffPolicy(backOffPolicy);
  SimpleRetryPolicy retryPolicy = new SimpleRetryPolicy();
  retryPolicy.setMaxAttempts(retryParams.getInteger("maxAttempts", 5));
  retryTemplate.setRetryPolicy(retryPolicy);
  return retryTemplate;
}
 

@Bean
public RetryTemplate retryTemplate() {
    SimpleRetryPolicy retryPolicy = new SimpleRetryPolicy();
    retryPolicy.setMaxAttempts(5);

    FixedBackOffPolicy backOffPolicy = new FixedBackOffPolicy();
    backOffPolicy.setBackOffPeriod(1500); // 1.5 seconds

    RetryTemplate template = new RetryTemplate();
    template.setRetryPolicy(retryPolicy);
    template.setBackOffPolicy(backOffPolicy);

    return template;
}
 

/**
 * Clicks a link on the page
 *
 * @param alias       If this word is found in the step, it means the linkContent is found from the data
 *                    set.
 * @param linkContent The text content of the link we are clicking
 * @param timesAlias  If this word is found in the step, it means the times is found from the
 *                    data set.
 * @param times       If this text is set, the click operation will be repeated the specified number of times.
 * @param exists      If this text is set, an error that would be thrown because the element was not found
 *                    is ignored. Essentially setting this text makes this an optional statement.
 */
@When("^I click (?:a|an|the) link with the text content of( alias)? \"([^\"]*)\"(?:( alias)? \"(.*?)\" times)?( if it exists)?$")
public void clickLinkStep(
	final String alias,
	final String linkContent,
	final String timesAlias,
	final String times,
	final String exists) {

	try {
		final Integer fixedTimes = countConverter.convertCountToInteger(timesAlias, times);

		final String text = autoAliasUtils.getValue(
			linkContent, StringUtils.isNotBlank(alias), State.getFeatureStateForThread());

		checkState(text != null, "the aliased link content does not exist");

		final WebDriver webDriver = State.getThreadDesiredCapabilityMap().getWebDriverForThread();

		for (int i = 0; i < fixedTimes; ++i) {
			final WebElement element = browserInteropUtils.getLinkByText(webDriver, text);

			mouseMovementUtils.mouseGlide(
				webDriver,
				(JavascriptExecutor) webDriver,
				element,
				Constants.MOUSE_MOVE_TIME,
				Constants.MOUSE_MOVE_STEPS);

			final RetryTemplate template = new RetryTemplate();
			final SimpleRetryPolicy policy = new SimpleRetryPolicy();
			policy.setMaxAttempts(Constants.WEBDRIVER_ACTION_RETRIES);
			template.setRetryPolicy(policy);
			final FixedBackOffPolicy fixedBackOffPolicy = new FixedBackOffPolicy();
			template.setBackOffPolicy(fixedBackOffPolicy);
			template.execute(context -> {
				element.click();
				return null;
			});

			sleepUtils.sleep(State.getFeatureStateForThread().getDefaultSleep());
		}
	} catch (final TimeoutException | NoSuchElementException ex) {
		if (StringUtils.isBlank(exists)) {
			throw ex;
		}
	}
}
 

/**
 * Clicks a link that may or may not be visible on the page
 *
 * @param alias       If this word is found in the step, it means the linkContent is found from the data
 *                    set.
 * @param linkContent The text content of the link we are clicking
 * @param timesAlias  If this word is found in the step, it means the times is found from the
 *                    data set.
 * @param times       If this text is set, the click operation will be repeated the specified number of times.
 * @param exists      If this text is set, an error that would be thrown because the element was not found
 *                    is ignored. Essentially setting this text makes this an optional statement.
 */
@When("^I click (?:a|an|the) hidden link with the text content( alias)? of \"([^\"]*)\"(?:( alias)? \"(.*?)\" times)?( if it exists)?$")
public void clickHiddenLinkStep(
	final String alias,
	final String linkContent,
	final String timesAlias,
	final String times,
	final String exists) {

	try {
		final Integer fixedTimes = countConverter.convertCountToInteger(timesAlias, times);

		final String text = autoAliasUtils.getValue(
			linkContent, StringUtils.isNotBlank(alias), State.getFeatureStateForThread());

		checkState(text != null, "the aliased link content does not exist");

		final WebDriver webDriver = State.getThreadDesiredCapabilityMap().getWebDriverForThread();

		for (int i = 0; i < fixedTimes; ++i) {
			final RetryTemplate template = new RetryTemplate();
			final SimpleRetryPolicy policy = new SimpleRetryPolicy();
			policy.setMaxAttempts(Constants.WEBDRIVER_ACTION_RETRIES);
			template.setRetryPolicy(policy);
			final FixedBackOffPolicy fixedBackOffPolicy = new FixedBackOffPolicy();
			template.setBackOffPolicy(fixedBackOffPolicy);
			template.execute(context -> {
				final WebElement element = browserInteropUtils.getLinkByText(webDriver, text);

				mouseMovementUtils.mouseGlide(
					webDriver,
					(JavascriptExecutor) webDriver,
					element,
					Constants.MOUSE_MOVE_TIME,
					Constants.MOUSE_MOVE_STEPS);

				final JavascriptExecutor js = (JavascriptExecutor) webDriver;
				js.executeScript("arguments[0].click();", element);
				return null;
			});

			sleepUtils.sleep(State.getFeatureStateForThread().getDefaultSleep());
		}
	} catch (final TimeoutException | NoSuchElementException ex) {
		if (StringUtils.isBlank(exists)) {
			throw ex;
		}
	}
}