michael@0: /*
michael@0:  * ====================================================================
michael@0:  * Licensed to the Apache Software Foundation (ASF) under one
michael@0:  * or more contributor license agreements.  See the NOTICE file
michael@0:  * distributed with this work for additional information
michael@0:  * regarding copyright ownership.  The ASF licenses this file
michael@0:  * to you under the Apache License, Version 2.0 (the
michael@0:  * "License"); you may not use this file except in compliance
michael@0:  * with the License.  You may obtain a copy of the License at
michael@0:  *
michael@0:  *   http://www.apache.org/licenses/LICENSE-2.0
michael@0:  *
michael@0:  * Unless required by applicable law or agreed to in writing,
michael@0:  * software distributed under the License is distributed on an
michael@0:  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
michael@0:  * KIND, either express or implied.  See the License for the
michael@0:  * specific language governing permissions and limitations
michael@0:  * under the License.
michael@0:  * ====================================================================
michael@0:  *
michael@0:  * This software consists of voluntary contributions made by many
michael@0:  * individuals on behalf of the Apache Software Foundation.  For more
michael@0:  * information on the Apache Software Foundation, please see
michael@0:  * <http://www.apache.org/>.
michael@0:  *
michael@0:  */
michael@0: 
michael@0: package ch.boye.httpclientandroidlib.client;
michael@0: 
michael@0: import java.io.IOException;
michael@0: 
michael@0: import ch.boye.httpclientandroidlib.protocol.HttpContext;
michael@0: 
michael@0: /**
michael@0:  * A handler for determining if an HttpRequest should be retried after a
michael@0:  * recoverable exception during execution.
michael@0:  * <p>
michael@0:  * Implementations of this interface must be thread-safe. Access to shared
michael@0:  * data must be synchronized as methods of this interface may be executed
michael@0:  * from multiple threads.
michael@0:  *
michael@0:  * @since 4.0
michael@0:  */
michael@0: public interface HttpRequestRetryHandler {
michael@0: 
michael@0:     /**
michael@0:      * Determines if a method should be retried after an IOException
michael@0:      * occurs during execution.
michael@0:      *
michael@0:      * @param exception the exception that occurred
michael@0:      * @param executionCount the number of times this method has been
michael@0:      * unsuccessfully executed
michael@0:      * @param context the context for the request execution
michael@0:      *
michael@0:      * @return <code>true</code> if the method should be retried, <code>false</code>
michael@0:      * otherwise
michael@0:      */
michael@0:     boolean retryRequest(IOException exception, int executionCount, HttpContext context);
michael@0: 
michael@0: }