org.glassfish.grizzly.http.HttpPacket Maven / Gradle / Ivy

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package org.glassfish.grizzly.http;

import org.glassfish.grizzly.Cacheable;

/**
 * Abstraction, which represents any type of HTTP message: {@link HttpRequestPacket},
 * {@link HttpResponsePacket}, {@link HttpContent}.
 *
 * @see HttpRequestPacket
 * @see HttpResponsePacket
 * @see HttpContent
 * 
 * @author Alexey Stashok
 */
public abstract class HttpPacket implements Cacheable {
    /**
     * Returns true if passed {@link Object} is a HttpPacket.
     *
     * @param packet
     * @return true if passed {@link Object} is a HttpPacket.
     */
    public static boolean isHttp(final Object packet) {
        return HttpPacket.class.isAssignableFrom(packet.getClass());
    }
    
    /**
     * Returns true, if this HTTP message represents HTTP message header,
     * or false otherwise.
     * 
     * @return true, if this HTTP message represents HTTP message header,
     * or false otherwise.
     */
    public abstract boolean isHeader();
    
    /**
     * Get the HTTP message header, associated with this HTTP packet.
     *
     * @return {@link HttpHeader}.
     */
    public abstract HttpHeader getHttpHeader();
}