org.ringojs.jsgi.ExtJsgiServlet.java Source code

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Here is the source code for org.ringojs.jsgi.ExtJsgiServlet.java

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/**
 * Copyright (c) 2010, Pykl Studios <admin@pykl.org>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
/*
Copyright (c) 2011, Pykl Studios <admin@pykl.com>
    
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
    
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package org.ringojs.jsgi;

import java.util.Locale;

import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.NoSuchMessageException;
import org.springframework.web.context.support.WebApplicationContextUtils;

public class ExtJsgiServlet extends JsgiServlet {

    private static final Logger LOG = LoggerFactory.getLogger(ExtJsgiServlet.class);

    private ApplicationContext _springContext;
    private ServletContext _servletContext;
    private static final String PROP_SPRING_CONTEXT = "RT_SPRING_CONTEXT";
    private static final String PROP_SERVLET = "RT_SERVLET";

    @Override
    public void init(ServletConfig config) throws ServletException {
        super.init(config);

        _servletContext = config.getServletContext();
        _springContext = WebApplicationContextUtils.getRequiredWebApplicationContext(_servletContext);

        // Hacky way of shoving an object into the System properties
        LOG.info("Injecting spring context into Java system property [{}]", PROP_SPRING_CONTEXT);
        System.getProperties().put(PROP_SPRING_CONTEXT, _springContext);

        // Hacky way of shoving the current servlet instance into System properties
        LOG.info("Injecting this servlet into Java system property [{}]", PROP_SERVLET);
        System.getProperties().put(PROP_SERVLET, this);
    }

    public ApplicationContext getSpringContext() {
        return _springContext;
    }

    public Object getBean(String name) {
        return _springContext.getBean(name);
    }

    public String getMessage(String code, Object[] args, Locale locale) throws NoSuchMessageException {
        try {
            return _springContext.getMessage(code, args, locale);
        } catch (NoSuchMessageException e) {
            return code;
        }
    }

    public String getMessage(String code, Locale locale) throws NoSuchMessageException {
        return getMessage(code, null, locale);
    }

    // @todo: unnecessary since it overrides?
    public ServletContext getServletContext() {
        return _servletContext;
    }
}