1 /* 2 * ==================================================================== 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * ==================================================================== 20 * 21 * This software consists of voluntary contributions made by many 22 * individuals on behalf of the Apache Software Foundation. For more 23 * information on the Apache Software Foundation, please see 24 * <http://www.apache.org/>. 25 * 26 */ 27 package org.apache.hc.core5.http; 28 29 import org.apache.hc.core5.annotation.Contract; 30 import org.apache.hc.core5.annotation.ThreadingBehavior; 31 32 /** 33 * @since 4.4 34 */ 35 @Contract(threading = ThreadingBehavior.STATELESS) 36 public interface ExceptionListener { 37 38 ExceptionListeneristener.html#ExceptionListener">ExceptionListener NO_OP = new ExceptionListener() { 39 40 @Override 41 public void onError(final Exception ex) { 42 // no-op 43 } 44 45 @Override 46 public void onError(final HttpConnection connection, final Exception ex) { 47 // no-op 48 } 49 50 }; 51 52 ExceptionListenertener.html#ExceptionListener">ExceptionListener STD_ERR = new ExceptionListener() { 53 54 @Override 55 public void onError(final Exception ex) { 56 ex.printStackTrace(); 57 } 58 59 @Override 60 public void onError(final HttpConnection connection, final Exception ex) { 61 ex.printStackTrace(); 62 } 63 64 }; 65 66 void onError(Exception ex); 67 68 void onError(HttpConnection connection, Exception ex); 69 70 }