org.eclipse.birt.report.context.BaseContext Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of viewservlets Show documentation

A component of the BIRT runtime

There is a newer version: 4.5.0

/*************************************************************************************
 * Copyright (c) 2004 Actuate Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     Actuate Corporation - Initial implementation.
 ************************************************************************************/

package org.eclipse.birt.report.context;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

abstract public class BaseContext implements IContext
{
	/**
	 * Thread local.
	 */
	protected static ThreadLocal contextTraker = new ThreadLocal( );

    /**
     * Reference to the viewer attribute bean.
     */
    protected BaseAttributeBean bean = null;
    
    /**
     * Reference to the current request.
     */
    protected HttpServletRequest request = null;
    
    /**
     * Reference to the current response.
     */
    protected HttpServletResponse response = null;

    /**
     * Abstract methods.
     */
    abstract protected void __init( );
    
    /**
	 * Static accessor.
	 * 
	 * @return
	 */
    public static IContext getInstance( )
    {
        return ( ( IContext ) contextTraker.get( ) );
    }

    /**
     * Default constructor.
     */
    public BaseContext( ) { }

	/**
	 * Constructor.
	 * 
	 * @param request
	 * @param response
	 */
	public BaseContext( HttpServletRequest request, HttpServletResponse response )
	{
		this.request = request;
		this.response = response;
		__init( );
		contextTraker.set( this );
	}
	
	/**
	 * @return Returns the bean.
	 */
	public BaseAttributeBean getBean( )
	{
		return bean;
	}
	
	/**
	 * Access request instance.
	 * 
	 * @return Returns the request.
	 */
	public HttpServletRequest getRequest( )
	{
		return request;
	}

	/**
	 * Access response instance.
	 * 
	 * @return
	 */
	public HttpServletResponse getResponse( )
	{
		return response;
	}
}