| 1 | /** |
| 2 | * |
| 3 | * Copyright (C) 2011 Cloud Conscious, LLC. <info@cloudconscious.com> |
| 4 | * |
| 5 | * ==================================================================== |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | * you may not use this file except in compliance with the License. |
| 8 | * You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, software |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | * ==================================================================== |
| 18 | */ |
| 19 | package org.jclouds.http.handlers; |
| 20 | |
| 21 | import javax.inject.Singleton; |
| 22 | |
| 23 | import org.jclouds.http.HttpCommand; |
| 24 | import org.jclouds.http.HttpErrorHandler; |
| 25 | import org.jclouds.http.HttpResponse; |
| 26 | import org.jclouds.http.annotation.ClientError; |
| 27 | import org.jclouds.http.annotation.Redirection; |
| 28 | import org.jclouds.http.annotation.ServerError; |
| 29 | |
| 30 | import com.google.common.annotations.VisibleForTesting; |
| 31 | import com.google.inject.Inject; |
| 32 | |
| 33 | /** |
| 34 | * Delegates to {@link HttpErrorHandler HttpErrorHandlers} who are annotated according to the |
| 35 | * response codes they relate to. |
| 36 | * |
| 37 | * @author Adrian Cole |
| 38 | */ |
| 39 | @Singleton |
| 40 | public class DelegatingErrorHandler implements HttpErrorHandler { |
| 41 | |
| 42 | @VisibleForTesting |
| 43 | @Inject(optional = true) |
| 44 | @Redirection |
| 45 | HttpErrorHandler redirectionHandler; |
| 46 | |
| 47 | @VisibleForTesting |
| 48 | @Inject(optional = true) |
| 49 | @ClientError |
| 50 | HttpErrorHandler clientErrorHandler; |
| 51 | |
| 52 | @VisibleForTesting |
| 53 | @Inject(optional = true) |
| 54 | @ServerError |
| 55 | HttpErrorHandler serverErrorHandler; |
| 56 | |
| 57 | @Inject |
| 58 | DelegatingErrorHandler() { |
| 59 | this.redirectionHandler = new CloseContentAndSetExceptionErrorHandler(); |
| 60 | this.clientErrorHandler = redirectionHandler; |
| 61 | this.serverErrorHandler = redirectionHandler; |
| 62 | } |
| 63 | |
| 64 | public void handleError(HttpCommand command, HttpResponse response) { |
| 65 | int statusCode = response.getStatusCode(); |
| 66 | if (statusCode >= 300 && statusCode < 400) { |
| 67 | getRedirectionHandler().handleError(command, response); |
| 68 | } else if (statusCode >= 400 && statusCode < 500) { |
| 69 | getClientErrorHandler().handleError(command, response); |
| 70 | } else if (statusCode >= 500) { |
| 71 | getServerErrorHandler().handleError(command, response); |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | public HttpErrorHandler getRedirectionHandler() { |
| 76 | return redirectionHandler; |
| 77 | } |
| 78 | |
| 79 | public HttpErrorHandler getClientErrorHandler() { |
| 80 | return clientErrorHandler; |
| 81 | } |
| 82 | |
| 83 | public HttpErrorHandler getServerErrorHandler() { |
| 84 | return serverErrorHandler; |
| 85 | } |
| 86 | } |