/* * Copyright 2004-2005 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * *      http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */package net.sf.jml.event;import net.sf.jml.MsnContact;import net.sf.jml.MsnMessenger;import net.sf.jml.MsnSwitchboard;import net.sf.jml.message.MsnDatacastMessage;import net.sf.jml.message.MsnInstantMessage;import net.sf.jml.message.MsnSystemMessage;import net.sf.jml.message.MsnControlMessage;import net.sf.jml.message.MsnUnknownMessage;/** * Message listener. *  * @author Roger Chen */public interface MsnMessageListener {    /**     * Received text message.     *      * @param switchboard     * 		MsnSwitchboard     * @param message     * 		received message     * @param contact     * 		the user who sent this message     */    public void instantMessageReceived(MsnSwitchboard switchboard,            MsnInstantMessage message, MsnContact contact);    /**     * Received control message, such as typing text or recording voice clip.     *      * @param switchboard     * 		MsnSwitchboard     * @param message     *      control message     * @param contact     *      the user who sent this message     */    public void controlMessageReceived(MsnSwitchboard switchboard,            MsnControlMessage message, MsnContact contact);    /**     * Received system message. System message is sent by     * NS server, so only MsnMessenger here.     *      * @param messenger     * 		MsnMessenger     * @param message     *      received message     */    public void systemMessageReceived(MsnMessenger messenger,            MsnSystemMessage message);    /**     * Received datacast message.     *      * @param switchboard     * 		MsnSwitchboard     * @param message     *      received message     * @param contact     *      the user who sent this message     */    public void datacastMessageReceived(MsnSwitchboard switchboard,            MsnDatacastMessage message, MsnContact contact);    /**     * Received unknown message. Maybe because of this library     * not support this message.     *      * @param switchboard     * 		MsnSwitchboard     * @param message     *      received message     * @param contact     *      the user who sent this message     */    public void unknownMessageReceived(MsnSwitchboard switchboard,            MsnUnknownMessage message, MsnContact contact);}