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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2007-2012 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
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 *
 * GPL Classpath Exception:
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 */
package org.glassfish.grizzly.comet;

/**
 * Simple event class used to pass information between {@link CometHandler} and the Comet implementation.
 *
 * @author Jeanfrancois Arcand
 */
public class CometEvent {
    public enum Type {
        INTERRUPT,
        NOTIFY,
        INITIALIZE,
        TERMINATE,
        READ,
        WRITE,
    }

    /**
     * This type of event.
     */
    protected Type type;
    /**
     * Share an E amongst {@link CometHandler}
     */
    protected E attachment;
    /**
     * The CometContext from where this instance was fired.
     */
    private CometContext cometContext;
    private static final long serialVersionUID = 920798330036889926L;

    /**
     * Create a new CometEvent
     */
    public CometEvent() {
        type = Type.NOTIFY;
    }

    public CometEvent(Type type) {
        this.type = type;
    }

    public CometEvent(Type type, CometContext context) {
        this.type = type;
        cometContext = context;
    }

    public CometEvent(Type type, CometContext cometContext, E attachment) {
        this.type = type;
        this.attachment = attachment;
        this.cometContext = cometContext;
    }

    /**
     * Return the type of this object.
     *
     * @return int Return the type of this object
     */
    public Type getType() {
        return type;
    }

    /**
     * Set the type of this object.
     *
     * @param type the type of this object
     */
    protected void setType(Type type) {
        this.type = type;
    }

    /**
     * Attach an 
     *
     * @param attachment An attachment.
     */
    public void attach(E attachment) {
        this.attachment = attachment;
    }

    /**
     * Return the attachment 
     *
     * @return attachment An attachment.
     */
    public E attachment() {
        return attachment;
    }

    /**
     * Return the {@link CometContext} that fired this event.
     */
    public CometContext getCometContext() {
        return cometContext;
    }

    /**
     * Set the {@link CometContext} that fired this event.
     */
    protected void setCometContext(CometContext cometContext) {
        this.cometContext = cometContext;
    }
}