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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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package ch.boye.httpclientandroidlib;
import java.util.Locale;
/**
* After receiving and interpreting a request message, a server responds
* with an HTTP response message.
* <pre>
* Response = Status-Line
* *(( general-header
* | response-header
* | entity-header ) CRLF)
* CRLF
* [ message-body ]
* </pre>
*
* @since 4.0
*/
public interface HttpResponse extends HttpMessage {
/**
* Obtains the status line of this response.
* The status line can be set using one of the
* {@link #setStatusLine setStatusLine} methods,
* or it can be initialized in a constructor.
*
* @return the status line, or <code>null</code> if not yet set
*/
StatusLine getStatusLine();
/**
* Sets the status line of this response.
*
* @param statusline the status line of this response
*/
void setStatusLine(StatusLine statusline);
/**
* Sets the status line of this response.
* The reason phrase will be determined based on the current
* {@link #getLocale locale}.
*
* @param ver the HTTP version
* @param code the status code
*/
void setStatusLine(ProtocolVersion ver, int code);
/**
* Sets the status line of this response with a reason phrase.
*
* @param ver the HTTP version
* @param code the status code
* @param reason the reason phrase, or <code>null</code> to omit
*/
void setStatusLine(ProtocolVersion ver, int code, String reason);
/**
* Updates the status line of this response with a new status code.
* The status line can only be updated if it is available. It must
* have been set either explicitly or in a constructor.
* <br/>
* The reason phrase will be updated according to the new status code,
* based on the current {@link #getLocale locale}. It can be set
* explicitly using {@link #setReasonPhrase setReasonPhrase}.
*
* @param code the HTTP status code.
*
* @throws IllegalStateException
* if the status line has not be set
*
* @see HttpStatus
* @see #setStatusLine(StatusLine)
* @see #setStatusLine(ProtocolVersion,int)
*/
void setStatusCode(int code)
throws IllegalStateException;
/**
* Updates the status line of this response with a new reason phrase.
* The status line can only be updated if it is available. It must
* have been set either explicitly or in a constructor.
*
* @param reason the new reason phrase as a single-line string, or
* <code>null</code> to unset the reason phrase
*
* @throws IllegalStateException
* if the status line has not be set
*
* @see #setStatusLine(StatusLine)
* @see #setStatusLine(ProtocolVersion,int)
*/
void setReasonPhrase(String reason)
throws IllegalStateException;
/**
* Obtains the message entity of this response, if any.
* The entity is provided by calling {@link #setEntity setEntity}.
*
* @return the response entity, or
* <code>null</code> if there is none
*/
HttpEntity getEntity();
/**
* Associates a response entity with this response.
*
* @param entity the entity to associate with this response, or
* <code>null</code> to unset
*/
void setEntity(HttpEntity entity);
/**
* Obtains the locale of this response.
* The locale is used to determine the reason phrase
* for the {@link #setStatusCode status code}.
* It can be changed using {@link #setLocale setLocale}.
*
* @return the locale of this response, never <code>null</code>
*/
Locale getLocale();
/**
* Changes the locale of this response.
* If there is a status line, it's reason phrase will be updated
* according to the status code and new locale.
*
* @param loc the new locale
*
* @see #getLocale getLocale
* @see #setStatusCode setStatusCode
*/
void setLocale(Locale loc);
}
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