1 /**************************************************************** 2 * Licensed to the Apache Software Foundation (ASF) under one * 3 * or more contributor license agreements. See the NOTICE file * 4 * distributed with this work for additional information * 5 * regarding copyright ownership. The ASF licenses this file * 6 * to you under the Apache License, Version 2.0 (the * 7 * "License"); you may not use this file except in compliance * 8 * with the License. You may obtain a copy of the License at * 9 * * 10 * http://www.apache.org/licenses/LICENSE-2.0 * 11 * * 12 * Unless required by applicable law or agreed to in writing, * 13 * software distributed under the License is distributed on an * 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * 15 * KIND, either express or implied. See the License for the * 16 * specific language governing permissions and limitations * 17 * under the License. * 18 ****************************************************************/ 19 20 package org.apache.james.mpt; 21 22 /** 23 * A connection to the host. 24 */ 25 public interface Session { 26 27 /** 28 * Reads a line from the session input, 29 * blocking until a new line is available. 30 * @return not null 31 * @throws Exception 32 */ 33 public String readLine() throws Exception; 34 35 /** 36 * Writes a line to the session output. 37 * @param line not null 38 * @throws Exception 39 */ 40 public void writeLine(String line) throws Exception; 41 42 /** 43 * Opens the session. 44 * 45 * @throws Exception 46 */ 47 public void start() throws Exception; 48 49 /** 50 * Closes the session. 51 * 52 * @throws Exception 53 */ 54 public void stop() throws Exception; 55 }