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The free Java library for Asterisk PBX integration.
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/*
 *  Copyright 2004-2006 Stefan Reuter
 *
 *  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 org.asteriskjava.live;

import java.util.Date;

/**
 * Represents a user of a MeetMe room.
 * PropertyChangeEvents are fired for the following properties:
 * 

 * talking
 * 
muted
 * 
state
 * 
 *
 * @author srt
 * @see org.asteriskjava.live.MeetMeRoom
 * @since 0.3
 */
public interface MeetMeUser extends LiveObject {
    String PROPERTY_TALKING = "talking";
    String PROPERTY_MUTED = "muted";
    String PROPERTY_STATE = "state";

    /**
     * Returns whether this user is currently talking or not.
     * Asterisk supports talker detection since version 1.2.
     *
     * @return true if this user is currently talking and
     * talker detection is supported, false otherwise.
     */
    boolean isTalking();

    /**
     * Returns whether this user is muted or not.

     * Supported since Asterisk version 1.4.
     *
     * @return true if this user is muted and
     * mute detection is supported, false otherwise.
     */
    boolean isMuted();

    /**
     * Returns the date this user joined the MeetMe room.

     * This property is immutable.
     *
     * @return the date this user joined the MeetMe room.
     */
    Date getDateJoined();

    /**
     * Returns the date this user left the MeetMe room.

     * This property is null as long as the user is
     * in state {@link MeetMeUserState#JOINED} and set to date the
     * user left when entering {@link MeetMeUserState#LEFT}.
     *
     * @return the date this user left the MeetMe room or
     * null if the user did not yet leave.
     */
    Date getDateLeft();

    /**
     * Returns the lifecycle status of this MeetMeUser.

     * Initially the user is in state {@link MeetMeUserState#JOINED}.
     *
     * @return the lifecycle status of this MeetMeUser.
     */
    MeetMeUserState getState();

    /**
     * Returns the MeetMe room this user joined.

     * This property is immutable.
     *
     * @return the MeetMe room this user joined.
     */
    MeetMeRoom getRoom();

    /**
     * Returns the user number assigned to this user in the room.

     * Usually you won't need to access this property directly.

     * This property is immutable.
     *
     * @return the user number assigned to this user in the room.
     */
    Integer getUserNumber();

    /**
     * Returns the channel associated with this user.
     * This property is immutable.
     *
     * @return the channel associated with this user.
     */
    AsteriskChannel getChannel();

    /**
     * Stops sending voice from this user to the MeetMe room.
     *
     * @throws ManagerCommunicationException if there is a problem talking to the Asterisk server.
     */
    void mute() throws ManagerCommunicationException;

    /**
     * (Re)starts sending voice from this user to the MeetMe room.
     *
     * @throws ManagerCommunicationException if there is a problem talking to the Asterisk server.
     */
    void unmute() throws ManagerCommunicationException;

    /**
     * Removes this user from the MeetMe room.
     *
     * @throws ManagerCommunicationException if there is a problem talking to the Asterisk server.
     */
    void kick() throws ManagerCommunicationException;
}