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 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.wink.server.handlers;

import java.util.Properties;

import javax.ws.rs.core.MediaType;

import org.apache.wink.common.RuntimeContext;
import org.apache.wink.server.utils.LinkBuilders;

/**
 * The MessageContext is used by Handlers to obtain and manipulate request
 * specific information.
 * 
 * @See {@link RequestHandler}, {@link ResponseHandler}
 */
public interface MessageContext extends RuntimeContext {

    /**
     * Get the initialization properties
     * 
     * @return initialization properties
     */
    public Properties getProperties();

    /**
     * Set the response status code
     * 
     * @param responseStatusCode response status code
     */
    public void setResponseStatusCode(int responseStatusCode);

    /**
     * Get the response status code that was previously set
     * 
     * @return response status code or -1 if it was not set
     */
    public int getResponseStatusCode();

    /**
     * Set the response entity.
     * 
     * This may be
     * 

     * the return value from the invoked resource method (including a
     * {@link javax.ws.rs.core.Response})
     * the thrown exception in case of the error handler chain being invoked
     * 
     * 
     * 
     * @param entity the response entity
     */
    public void setResponseEntity(Object entity);

    /**
     * Get the response entity.
     * 
     * @return the response entity
     */
    public Object getResponseEntity();

    /**
     * Set the response media type
     * 
     * @param responseMediaType response media type to set
     */
    public void setResponseMediaType(MediaType responseMediaType);

    /**
     * Get the previously set response media type
     * 
     * @return previously set response media type
     */
    public MediaType getResponseMediaType();

    /**
     * Set the http method of the request.
     * 
     * Enables overriding of the actual http method that was used for the
     * request
     * 
     * @param method the request http method to set
     */
    public void setHttpMethod(String method);

    /**
     * Get the http method of the request.
     * 
     * Note that this may be different than the real http method on the
     * HttpServletRequest if one of X-Method-Override or
     * X-Http-Method-Override request headers was used to override
     * the actual http method.
     * 
     * @return the request http method
     */
    public String getHttpMethod();

    /**
     * Get the {@link LinkBuilders} context
     * 
     * @return the {@link LinkBuilders} context
     */
    public LinkBuilders getLinkBuilders();

}