org.apache.wink.server.internal.servlet.AbstractRestServlet Maven / Gradle / Ivy

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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.internal.servlet;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;

import org.apache.wink.server.internal.RequestProcessor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Base class for RestServlet and AdminServlet
 */
public abstract class AbstractRestServlet extends HttpServlet {

    private static final Logger logger                      =
                                                                LoggerFactory
                                                                    .getLogger(AbstractRestServlet.class);

    private static final String REQUEST_PROCESSOR_ATTRIBUTE = "requestProcessorAttribute"; //$NON-NLS-1$
    private static final long   serialVersionUID            = 7721777326714438571L;
    private String              requestProcessorAttribute;

    @Override
    public void init() throws ServletException {
        super.init();
        requestProcessorAttribute = getInitParameter(REQUEST_PROCESSOR_ATTRIBUTE);
        logger.trace("Request processor attribute is {} for {}", requestProcessorAttribute, this); //$NON-NLS-1$
    }

    protected RequestProcessor getRequestProcessor() {
        return RequestProcessor.getRequestProcessor(getServletContext(), requestProcessorAttribute);
    }

    protected void storeRequestProcessorOnServletContext(RequestProcessor requestProcessor) {
        requestProcessor.storeRequestProcessorOnServletContext(getServletContext(),
                                                               requestProcessorAttribute);
    }

}