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/*
 *
 * TeleStax, Open Source Cloud Communications
 * Copyright 2011-2017, Telestax Inc and individual contributors
 * by the @authors tag.
 *
 * This program is free software: you can redistribute it and/or modify
 * under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation; either version 3 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see 
 *
 */

package org.jdiameter.client.impl.app.slg;

import org.jdiameter.api.InternalException;
import org.jdiameter.api.app.AppEvent;
import org.jdiameter.api.app.StateEvent;

/**
 * @author  Fernando Mendioroz 
 */

@SuppressWarnings("all") //3rd party lib
public class Event implements StateEvent {

    enum Type {
        SEND_MESSAGE,
        TIMEOUT_EXPIRES,
        RECEIVE_PLA,
        RECEIVE_LRR
    }

    AppEvent request;
    AppEvent answer;
    Type type;

    Event(Type type, AppEvent request, AppEvent answer) {
        this.type = type;
        this.answer = answer;
        this.request = request;
    }

    @SuppressWarnings("unchecked")
    public  E encodeType(Class eClass) {
        return eClass == Type.class ? (E) type : null;
    }

    @SuppressWarnings("rawtypes")
    public Enum getType() {
        return type;
    }

    public AppEvent getRequest() {
        return request;
    }

    public AppEvent getAnswer() {
        return answer;
    }

    public int compareTo(Object o) {
        return 0;
    }

    public Object getData() {
        return request != null ? request : answer;
    }

    public void setData(Object data) {
        try {
            if (((AppEvent) data).getMessage().isRequest()) {
                request = (AppEvent) data;
            } else {
                answer = (AppEvent) data;
            }
        } catch (InternalException e) {
            throw new IllegalArgumentException(e);
        }
    }
}