org.jclouds.aws.handlers.AWSClientErrorRetryHandler Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of sts Show documentation

jclouds components to access an implementation of Security Token Service (STS)

There is a newer version: 2.6.0

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jclouds.aws.handlers;

import static org.jclouds.http.HttpUtils.closeClientButKeepContentStream;

import java.util.Set;

import org.jclouds.aws.domain.AWSError;
import org.jclouds.aws.util.AWSUtils;
import org.jclouds.http.HttpCommand;
import org.jclouds.http.HttpResponse;
import org.jclouds.http.HttpRetryHandler;
import org.jclouds.http.annotation.ClientError;
import org.jclouds.http.handlers.BackoffLimitedRetryHandler;

import com.google.inject.Inject;

/**
 * Handles Retryable responses with error codes in the 4xx range
 */
public class AWSClientErrorRetryHandler implements HttpRetryHandler {

   private final AWSUtils utils;
   private final BackoffLimitedRetryHandler backoffLimitedRetryHandler;
   private final Set retryableCodes;

   @Inject
   public AWSClientErrorRetryHandler(AWSUtils utils, BackoffLimitedRetryHandler backoffLimitedRetryHandler,
         @ClientError Set retryableCodes) {
      this.utils = utils;
      this.backoffLimitedRetryHandler = backoffLimitedRetryHandler;
      this.retryableCodes = retryableCodes;
   }

   @Override
   public boolean shouldRetryRequest(HttpCommand command, HttpResponse response) {
      if (response.getStatusCode() == 400 || response.getStatusCode() == 403 || response.getStatusCode() == 409) {
         // Content can be null in the case of HEAD requests
         if (response.getPayload() != null) {
            closeClientButKeepContentStream(response);
            AWSError error = utils.parseAWSErrorFromContent(command.getCurrentRequest(), response);
            if (error != null) {
               return shouldRetryRequestOnError(command, response, error);
            }
         }
      }
      return false;
   }

   protected boolean shouldRetryRequestOnError(HttpCommand command, HttpResponse response, AWSError error) {
      if (retryableCodes.contains(error.getCode()))
         return backoffLimitedRetryHandler.shouldRetryRequest(command, response);
      return false;
   }

}