com.evanlennick.retry4j.RetryConfig Java Examples

The following examples show how to use com.evanlennick.retry4j.RetryConfig. 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: ATest.java    From aws-s3-virusscan with Apache License 2.0 6 votes vote down vote up 
protected final <T> T retry(Callable<T> callable) {
    final Callable<T> wrapper = () -> {
        try {
            return callable.call();
        } catch (final Exception e) {
            System.out.println("retry[] exception: " + e.getMessage());
            e.printStackTrace();
            throw e;
        }
    };
    final RetryConfig config = new RetryConfigBuilder()
            .retryOnAnyException()
            .withMaxNumberOfTries(30)
            .withDelayBetweenTries(10, ChronoUnit.SECONDS)
            .withFixedBackoff()
            .build();
    final CallResults<Object> results = new CallExecutor(config).execute(wrapper);
    return (T) results.getResult();
}
Example #2
Source File: ATest.java    From aws-ec2-ssh with MIT License 6 votes vote down vote up 
protected final <T> T retry(Callable<T> callable) {
    final Callable<T> wrapper = () -> {
        try {
            return callable.call();
        } catch (final Exception e) {
            System.out.println("retry[] exception: " + e.getMessage());
            e.printStackTrace();
            throw e;
        }
    };
    final RetryConfig config = new RetryConfigBuilder()
            .retryOnAnyException()
            .withMaxNumberOfTries(30)
            .withDelayBetweenTries(10, ChronoUnit.SECONDS)
            .withFixedBackoff()
            .build();
    final CallResults<Object> results = new CallExecutor(config).execute(wrapper);
    return (T) results.getResult();
}
Example #3
Source File: ATest.java    From aws-cf-templates with Apache License 2.0 6 votes vote down vote up 
protected final <T> T retry(Callable<T> callable) {
    final Callable<T> wrapper = () -> {
        try {
            return callable.call();
        } catch (final Exception e) {
            System.out.println("retry[] exception: " + e.getMessage());
            e.printStackTrace();
            throw e;
        }
    };
    final RetryConfig config = new RetryConfigBuilder()
            .retryOnAnyException()
            .withMaxNumberOfTries(30)
            .withDelayBetweenTries(10, ChronoUnit.SECONDS)
            .withFixedBackoff()
            .build();
    final CallResults<Object> results = new CallExecutor(config).execute(wrapper);
    return (T) results.getResult();
}
Example #4
Source File: HttpTransport.java    From bender with Apache License 2.0 4 votes vote down vote up 
public void sendBatch(byte[] raw) throws TransportException {
  /*
   * Wrap the call with retry logic to avoid intermittent ES issues.
   */
  Callable<HttpResponse> callable = () -> {
    HttpResponse resp;
    String responseString = null;
    HttpPost httpPost = new HttpPost(this.url);

    /*
     * Do the call, read response, release connection so it is available for use again, and
     * finally check the response.
     */
    try {
      if (this.useGzip) {
        resp = sendBatchCompressed(httpPost, raw);
      } else {
        resp = sendBatchUncompressed(httpPost, raw);
      }

      try {
        responseString = EntityUtils.toString(resp.getEntity());
      } catch (ParseException | IOException e) {
        throw new TransportException(
            "http transport call failed because " + resp.getStatusLine().getReasonPhrase());
      }
    } finally {
      /*
       * Always release connection otherwise it blocks future requests.
       */
      httpPost.releaseConnection();
    }

    checkResponse(resp, responseString);
    return resp;
  };

  RetryConfig config = new RetryConfigBuilder()
      .retryOnSpecificExceptions(TransportException.class).withMaxNumberOfTries(this.retries + 1)
      .withDelayBetweenTries(this.retryDelayMs, ChronoUnit.MILLIS).withExponentialBackoff()
      .build();

  try {
    new CallExecutor(config).execute(callable);
  } catch (RetriesExhaustedException ree) {
    logger.warn("transport failed after " + ree.getCallResults().getTotalTries() + " tries.");
    throw new TransportException(ree.getCallResults().getLastExceptionThatCausedRetry());
  } catch (UnexpectedException ue) {
    throw new TransportException(ue);
  }
}