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;
20
21 import java.io.IOException;
22
23 import org.jclouds.http.handlers.BackoffLimitedRetryHandler;
24
25 import com.google.inject.ImplementedBy;
26
27 /**
28 *
29 * @author Adrian Cole
30 */
31 @ImplementedBy(BackoffLimitedRetryHandler.class)
32 public interface IOExceptionRetryHandler {
33
34 public static final IOExceptionRetryHandler ALWAYS_RETRY = new IOExceptionRetryHandler() {
35 public boolean shouldRetryRequest(HttpCommand command, IOException response) {
36 return true;
37 }
38
39 @Override
40 public String toString() {
41 return "ALWAYS_RETRY";
42 }
43 };
44
45 public static final IOExceptionRetryHandler NEVER_RETRY = new IOExceptionRetryHandler() {
46 public boolean shouldRetryRequest(HttpCommand command, IOException response) {
47 return false;
48 }
49
50 @Override
51 public String toString() {
52 return "NEVER_RETRY";
53 }
54 };
55
56 boolean shouldRetryRequest(HttpCommand command, IOException error);
57 }