| /** |
| * Licensed to jclouds, Inc. (jclouds) under one or more |
| * contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. jclouds 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 javax.inject.Inject; |
| import javax.inject.Provider; |
| import javax.inject.Singleton; |
| import javax.ws.rs.HttpMethod; |
| import javax.ws.rs.core.HttpHeaders; |
| import javax.ws.rs.core.UriBuilder; |
| |
| 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.handlers.BackoffLimitedRetryHandler; |
| import org.jclouds.http.handlers.RedirectionRetryHandler; |
| |
| /** |
| * Handles Retryable responses with error codes in the 3xx range |
| * |
| * @author Adrian Cole |
| */ |
| @Singleton |
| public class AWSRedirectionRetryHandler extends RedirectionRetryHandler { |
| private final AWSUtils utils; |
| |
| @Inject |
| public AWSRedirectionRetryHandler(Provider<UriBuilder> uriBuilderProvider, |
| BackoffLimitedRetryHandler backoffHandler, AWSUtils utils) { |
| super(uriBuilderProvider, backoffHandler); |
| this.utils = utils; |
| } |
| |
| @Override |
| public boolean shouldRetryRequest(HttpCommand command, HttpResponse response) { |
| if (response.getFirstHeaderOrNull(HttpHeaders.LOCATION) == null |
| && (response.getStatusCode() == 301 || response.getStatusCode() == 307)) { |
| if (command.getCurrentRequest().getMethod() == HttpMethod.HEAD) { |
| command.setCurrentRequest(command.getCurrentRequest().toBuilder().method("GET").build()); |
| return true; |
| } else { |
| command.incrementRedirectCount(); |
| closeClientButKeepContentStream(response); |
| AWSError error = utils.parseAWSErrorFromContent(command.getCurrentRequest(), response); |
| String host = error.getDetails().get("Endpoint"); |
| if (host != null) { |
| if (host.equals(command.getCurrentRequest().getEndpoint().getHost())) { |
| // must be an amazon error related to |
| // http://developer.amazonwebservices.com/connect/thread.jspa?messageID=72287𑩟 |
| return backoffHandler.shouldRetryRequest(command, response); |
| } else { |
| UriBuilder builder = uriBuilderProvider.get().uri(command.getCurrentRequest().getEndpoint()); |
| builder.host(host); |
| command.setCurrentRequest(command.getCurrentRequest().toBuilder().endpoint(builder.build()).build()); |
| } |
| return true; |
| } else { |
| return false; |
| } |
| } |
| } else { |
| return super.shouldRetryRequest(command, response); |
| } |
| } |
| } |