/*
 *  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.asyncweb.common;

import java.util.Collection;
import java.util.List;
import java.util.Map;

import org.apache.mina.core.buffer.IoBuffer;

/**
 * A mutable {@link HttpMessage}.
 * 
 * @author The Apache MINA Project (dev@mina.apache.org)
 * @version $Rev$, $Date$
 */
public interface MutableHttpMessage extends HttpMessage {

    /**
     * Sets the version of the protocol associated with this request.
     */
    void setProtocolVersion(HttpVersion protocolVersion);

    /**
     * Sets the <tt>Content-Type</tt> header of the response.
     *
     * @param type The content type.
     */
    void setContentType(String type);

    /**
     * Sets the <tt>Connection</tt> header of the response.
     */
    void setKeepAlive(boolean keepAlive);

    /**
     * Adds an HTTP header to this response.
     * Adding a header does not cause any existing headers with the
     * same name to be overwritten
     *
     * @param name   The header name
     * @param value  The header value
     */
    void addHeader(String name, String value);

    /**
     * Removes all HTTP headers with the specified name.
     */
    boolean removeHeader(String name);

    /**
     * Sets the value of an HTTP header.
     * Any existing headers with the specified name are removed
     *
     * @param name  The header name
     * @param value The header value
     */
    void setHeader(String name, String value);

    /**
     * Sets the HTTP headers of this response.
     */
    void setHeaders(Map<String, List<String>> headers);

    /**
     * Removes all HTTP headers from this response.
     */
    void clearHeaders();

    /**
     * Adds the specified cookie.
     */
    void addCookie(Cookie cookie);

    /**
     * Removed the specified cookie.
     *
     * @return <tt>true</tt> if the specified cookie has been removed
     */
    boolean removeCookie(Cookie cookie);

    /**
     * Sets the cookies of this message.
     */
    void setCookies(Collection<Cookie> cookies);

    /**
     * Removed all cookies from this message.
     */
    void clearCookies();

    /**
     * Sets the content of the response body.
     *
     * @param content <tt>null</tt> to clear the body content
     */
    void setContent(IoBuffer content);
}