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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing,<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * software distributed under the License is distributed on an<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * KIND, either express or implied. See the License for the<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * specific language governing permissions and limitations<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * under the License.<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> *<a name="line.18"></a> |
| <span class="sourceLineNo">019</span> */<a name="line.19"></a> |
| <span class="sourceLineNo">020</span>package org.apache.mina.handler.demux;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import org.apache.mina.core.session.IoSession;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span><a name="line.23"></a> |
| <span class="sourceLineNo">024</span>/**<a name="line.24"></a> |
| <span class="sourceLineNo">025</span> * A handler interface that {@link DemuxingIoHandler} forwards<a name="line.25"></a> |
| <span class="sourceLineNo">026</span> * <code>exceptionCaught</code> events to. You have to register your<a name="line.26"></a> |
| <span class="sourceLineNo">027</span> * handler with the type of exception you want to get notified using<a name="line.27"></a> |
| <span class="sourceLineNo">028</span> * {@link DemuxingIoHandler#addExceptionHandler(Class, ExceptionHandler)}.<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> *<a name="line.29"></a> |
| <span class="sourceLineNo">030</span> * @author <a href="http://mina.apache.org">Apache MINA Project</a><a name="line.30"></a> |
| <span class="sourceLineNo">031</span> */<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>public interface ExceptionHandler<E extends Throwable> {<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> /**<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> * A {@link ExceptionHandler} that does nothing. This is useful when<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> * you want to ignore an exception of a specific type silently.<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> */<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> ExceptionHandler<Throwable> NOOP = new ExceptionHandler<Throwable>() {<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> public void exceptionCaught(IoSession session, Throwable cause) {<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> // Do nothing<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> }<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> };<a name="line.41"></a> |
| <span class="sourceLineNo">042</span><a name="line.42"></a> |
| <span class="sourceLineNo">043</span> /**<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * A {@link ExceptionHandler} that closes the session immediately.<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * This is useful when you want to close the session when an exception of<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * a specific type is raised.<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> */<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> ExceptionHandler<Throwable> CLOSE = new ExceptionHandler<Throwable>() {<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> public void exceptionCaught(IoSession session, Throwable cause) {<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> session.close(true);<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> }<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> };<a name="line.52"></a> |
| <span class="sourceLineNo">053</span><a name="line.53"></a> |
| <span class="sourceLineNo">054</span> /**<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> * Invoked when the specific type of exception is caught from the<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * specified <code>session</code>.<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * <a name="line.57"></a> |
| <span class="sourceLineNo">058</span> * @param session The current session<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * @param cause the exception's cause<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * @throws Exception If we can't process the event <a name="line.60"></a> |
| <span class="sourceLineNo">061</span> */<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> void exceptionCaught(IoSession session, E cause) throws Exception;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span>}<a name="line.63"></a> |
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