1 /* 2 * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/client/HttpRequestRetryHandler.java $ 3 * $Revision: 535610 $ 4 * $Date: 2007-05-06 06:28:13 -0700 (Sun, 06 May 2007) $ 5 * 6 * ==================================================================== 7 * Licensed to the Apache Software Foundation (ASF) under one 8 * or more contributor license agreements. See the NOTICE file 9 * distributed with this work for additional information 10 * regarding copyright ownership. The ASF licenses this file 11 * to you under the Apache License, Version 2.0 (the 12 * "License"); you may not use this file except in compliance 13 * with the License. You may obtain a copy of the License at 14 * 15 * http://www.apache.org/licenses/LICENSE-2.0 16 * 17 * Unless required by applicable law or agreed to in writing, 18 * software distributed under the License is distributed on an 19 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 20 * KIND, either express or implied. See the License for the 21 * specific language governing permissions and limitations 22 * under the License. 23 * ==================================================================== 24 * 25 * This software consists of voluntary contributions made by many 26 * individuals on behalf of the Apache Software Foundation. For more 27 * information on the Apache Software Foundation, please see 28 * <http://www.apache.org/>. 29 * 30 */ 31 32 package org.apache.http.client; 33 34 import java.io.IOException; 35 36 import org.apache.http.protocol.HttpContext; 37 38 /** 39 * A handler for determining if an HttpRequest should be retried after a 40 * recoverable exception during execution. 41 * 42 * <p> 43 * Classes implementing this interface must synchronize access to shared 44 * data as methods of this interfrace may be executed from multiple threads 45 * </p> 46 * 47 * @author Michael Becke 48 * @author <a href="mailto:oleg at ural.ru">Oleg Kalnichevski</a> 49 */ 50 public interface HttpRequestRetryHandler { 51 52 /** 53 * Determines if a method should be retried after an IOException 54 * occurs during execution. 55 * 56 * @param exception the exception that occurred 57 * @param executionCount the number of times this method has been 58 * unsuccessfully executed 59 * @param context the context for the request execution 60 * 61 * @return <code>true</code> if the method should be retried, <code>false</code> 62 * otherwise 63 */ retryRequest(IOException exception, int executionCount, HttpContext context)64 boolean retryRequest(IOException exception, int executionCount, HttpContext context); 65 66 } 67