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*
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* and Distribution License("CDDL") (collectively, the "License"). You
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* permission notice:
*
* Copyright 2004 The Apache Software Foundation
*
* Licensed 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
*
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// Portions Copyright [2019-2021] Payara Foundation and/or affiliates
package org.apache.catalina;
import jakarta.servlet.http.Cookie;
import java.io.IOException;
import java.util.Collection;
/**
* An HttpResponse is the Catalina-internal facade for an
* HttpServletResponse that is to be produced,
* based on the processing of a corresponding HttpRequest.
*
* @author Craig R. McClanahan
* @version $Revision: 1.2 $ $Date: 2005/12/08 01:27:16 $
*/
public interface HttpResponse
extends Response {
// --------------------------------------------------------- Public Methods
/**
* Return the value for the specified header, or null if this
* header has not been set. If more than one value was added for this
* name, only the first is returned; use {@link #getHeaders(String)} to
* retrieve all of them.
*
* @param name Header name to look up
*/
public String getHeader(String name);
/**
* @return a (possibly empty) Collection of the names
* of the headers of this response
*/
public Collection getHeaderNames();
/**
* @param name the name of the response header whose values to return
*
* @return a (possibly empty) Collection of the values
* of the response header with the given name
*/
public Collection getHeaders(String name);
/**
* Special method for adding a session cookie as we should be overriding
* any previous
* @param cookie
*/
public void addSessionCookieInternal(final Cookie cookie);
/**
* Return the error message that was set with sendError()
* for this Response.
*/
public String getMessage();
/**
* Return the HTTP status code associated with this Response.
*/
public int getStatus();
/**
* Reset this response, and specify the values for the HTTP status code
* and corresponding message.
*
* @exception IllegalStateException if this response has already been
* committed
*/
public void reset(int status, String message);
/**
* Send an acknowledgment of a request. An acknowledgment in this
* case is simply an HTTP response status line, i.e.
* HTTP/1.1 [STATUS] [REASON-PHRASE].
*
* @exception java.io.IOException if an input/output error occurs
*/
@Override
public void sendAcknowledgement() throws IOException;
}