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/*
 * Copyright 2013 Jeanfrancois Arcand
 *
 * 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
 *
 * 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.
 */
package org.atmosphere.cpr;


import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * AtmosphereServlet for Servlet 3.0 only Container
 *
 * @author Jeanfrancois Arcand
 */
public class AtmosphereServlet30 extends HttpServlet{

    protected static final Logger logger = LoggerFactory.getLogger(AtmosphereServlet30.class);
    protected AtmosphereFramework framework;

    /**
     * Create an Atmosphere Servlet.
     */
    public AtmosphereServlet30() {
        this(false);
    }

    /**
     * Create an Atmosphere Servlet.
     *
     * @param isFilter true if this instance is used as an {@link org.atmosphere.cpr.AtmosphereFilter}
     */
    public AtmosphereServlet30(boolean isFilter) {
        this(isFilter, true);
    }

    /**
     * Create an Atmosphere Servlet.
     *
     * @param isFilter true if this instance is used as an {@link org.atmosphere.cpr.AtmosphereFilter}
     */
    public AtmosphereServlet30(boolean isFilter, boolean autoDetectHandlers) {
        framework = new AtmosphereFramework(isFilter, autoDetectHandlers);
    }

    @Override
    public void destroy() {
        framework.destroy();
    }

    public void init(final ServletConfig sc) throws ServletException {
        super.init(sc);
        // No native supported
        framework.setUseNativeImplementation(false);
        framework.init(sc);
    }

    public AtmosphereFramework framework() {
        return framework;
    }

    /**
     * Delegate the request processing to an instance of {@link org.atmosphere.cpr.AsyncSupport}
     *
     * @param req the {@link javax.servlet.http.HttpServletRequest}
     * @param res the {@link javax.servlet.http.HttpServletResponse}
     * @throws java.io.IOException
     * @throws javax.servlet.ServletException
     */
    @Override
    public void doHead(HttpServletRequest req, HttpServletResponse res)
            throws IOException, ServletException {
        doPost(req, res);
    }

    /**
     * Delegate the request processing to an instance of {@link org.atmosphere.cpr.AsyncSupport}
     *
     * @param req the {@link javax.servlet.http.HttpServletRequest}
     * @param res the {@link javax.servlet.http.HttpServletResponse}
     * @throws java.io.IOException
     * @throws javax.servlet.ServletException
     */
    @Override
    public void doOptions(HttpServletRequest req, HttpServletResponse res)
            throws IOException, ServletException {
        doPost(req, res);
    }

    /**
     * Delegate the request processing to an instance of {@link org.atmosphere.cpr.AsyncSupport}
     *
     * @param req the {@link javax.servlet.http.HttpServletRequest}
     * @param res the {@link javax.servlet.http.HttpServletResponse}
     * @throws java.io.IOException
     * @throws javax.servlet.ServletException
     */
    @Override
    public void doTrace(HttpServletRequest req, HttpServletResponse res)
            throws IOException, ServletException {
        doPost(req, res);
    }

    /**
     * Delegate the request processing to an instance of {@link org.atmosphere.cpr.AsyncSupport}
     *
     * @param req the {@link javax.servlet.http.HttpServletRequest}
     * @param res the {@link javax.servlet.http.HttpServletResponse}
     * @throws java.io.IOException
     * @throws javax.servlet.ServletException
     */
    @Override
    public void doDelete(HttpServletRequest req, HttpServletResponse res)
            throws IOException, ServletException {
        doPost(req, res);
    }

    /**
     * Delegate the request processing to an instance of {@link org.atmosphere.cpr.AsyncSupport}
     *
     * @param req the {@link javax.servlet.http.HttpServletRequest}
     * @param res the {@link javax.servlet.http.HttpServletResponse}
     * @throws java.io.IOException
     * @throws javax.servlet.ServletException
     */
    @Override
    public void doPut(HttpServletRequest req, HttpServletResponse res)
            throws IOException, ServletException {
        doPost(req, res);
    }

    /**
     * Delegate the request processing to an instance of {@link org.atmosphere.cpr.AsyncSupport}
     *
     * @param req the {@link javax.servlet.http.HttpServletRequest}
     * @param res the {@link javax.servlet.http.HttpServletResponse}
     * @throws java.io.IOException
     * @throws javax.servlet.ServletException
     */
    @Override
    public void doGet(HttpServletRequest req, HttpServletResponse res)
            throws IOException, ServletException {
        doPost(req, res);
    }

    /**
     * Delegate the request processing to an instance of {@link org.atmosphere.cpr.AsyncSupport}
     *
     * @param req the {@link javax.servlet.http.HttpServletRequest}
     * @param res the {@link javax.servlet.http.HttpServletResponse}
     * @throws java.io.IOException
     * @throws javax.servlet.ServletException
     */
    @Override
    public void doPost(HttpServletRequest req, HttpServletResponse res)
            throws IOException, ServletException {
        framework.doCometSupport(AtmosphereRequest.wrap(req), AtmosphereResponse.wrap(res));
    }
}