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/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.openejb.server.httpd;

import javax.servlet.http.HttpServletRequest;

import java.util.Map;


/**
 * An interface to take care of HTTP Requests.  It parses headers, content, form and url
 * parameters.
 */
public interface HttpRequest extends java.io.Serializable, HttpServletRequest {


    /**
     * Request methods
     */
    public static enum Method {
        OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, CONNECT, PATCH, UNSUPPORTED
    }

    //
    // Header variables
    //
    /**
     * the Accept header
     */
    public static final String HEADER_ACCEPT = "Accept";
    /**
     * the Accept-Encoding header
     */
    public static final String HEADER_ACCEPT_ENCODING = "Accept-Encoding";
    /**
     * the Accept-Language header
     */
    public static final String HEADER_ACCEPT_LANGUAGE = "Accept-Language";
    /**
     * the Content-Type header
     */
    public static final String HEADER_CONTENT_TYPE = "Content-Type";
    /**
     * the Content-Length header
     */
    public static final String HEADER_CONTENT_LENGTH = "Content-Length";
    /**
     * the Connection header
     */
    public static final String HEADER_CONNECTION = "Connection";
    /**
     * the Cache-Control header
     */
    public static final String HEADER_CACHE_CONTROL = "Cache-Control";
    /**
     * the Host header
     */
    public static final String HEADER_HOST = "Host";
    /**
     * the User-Agent header
     */
    public static final String HEADER_USER_AGENT = "User-Agent";
    /**
     * the Set-Cookie header
     */
    public static final String HEADER_SET_COOKIE = "Set-Cookie";
    /**
     * the Cookie header
     */
    public static final String HEADER_COOKIE = "Cookie";

    //
    // Common attrobute values
    //
    /**
     * If the https server implementation is based on Servlets, the real HttpServletRequest
     * will be registered in the request attributes using this name.
     */
    public static final String SERVLET_REQUEST = HttpRequest.class.getName() + "@ServletRequest";

    /**
     * If the https server implementation is based on Servlets, the real HttpServletResponse
     * will be registered in the request attributes using this name.
     */
    public static final String SERVLET_RESPONSE = HttpRequest.class.getName() + "@ServletResponse";

    /**
     * If the https server implementation is based on Servlets, the real ServletContext
     * will be registered in the request attributes using this name.  Note: a ServletContext
     * may not be registered even if HttpServletRequest and HttpServletResponse objects are
     * registered.
     */
    public static final String SERVLET_CONTEXT = HttpRequest.class.getName() + "@ServletContext";

    /**
     * Gets a form or URL query parameter based on the name passed in.
     *
     * @param name
     */
    String getParameter(String name);

    /**
     * Gets all the form and URL query parameters
     *
     * @return All the form and URL query parameters
     */
    Map getParameters();


    /**
     * Gets the URI for the current URL page.
     *
     * @return The URI
     */
    public java.net.URI getURI();

    int getContentLength();

    String getContentType();

    public Object getAttribute(String name);

    public void setAttribute(String name, Object value);

    String getRemoteAddr();

}