View Javadoc
1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.commons.vfs2.provider.webdav;
18  
19  import java.io.IOException;
20  
21  import org.apache.commons.httpclient.HttpMethod;
22  import org.apache.commons.httpclient.HttpMethodRetryHandler;
23  
24  /**
25   * A retry handler which will retry a failed webdav method one time.
26   * <p>
27   * Now that webdavlib didnt support adding a MethodRetryHandler only a few operations are restartable yet.
28   * </p>
29   *
30   * @since 2.0
31   */
32  public final class WebdavMethodRetryHandler implements HttpMethodRetryHandler {
33  
34      private static final WebdavMethodRetryHandlerbdavMethodRetryHandler.html#WebdavMethodRetryHandler">WebdavMethodRetryHandler INSTANCE = new WebdavMethodRetryHandler();
35  
36      private WebdavMethodRetryHandler() {
37      }
38  
39      public static WebdavMethodRetryHandler getInstance() {
40          return INSTANCE;
41      }
42  
43      @Override
44      public boolean retryMethod(final HttpMethod method, final IOException exception, final int executionCount) {
45          return executionCount < 2;
46      }
47  }