org.araneaframework.ioc.spring.SimpleAraneaSpringDispatcherServlet.java Source code

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Here is the source code for org.araneaframework.ioc.spring.SimpleAraneaSpringDispatcherServlet.java

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/**
 * Copyright 2006 Webmedia Group Ltd.
 *
 * 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.araneaframework.ioc.spring;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import javax.servlet.ServletException;
import org.araneaframework.servlet.ServletServiceAdapterComponent;
import org.araneaframework.servlet.core.BaseAraneaDispatcherServlet;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.config.PropertyPlaceholderConfigurer;
import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.core.io.ClassPathResource;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

public class SimpleAraneaSpringDispatcherServlet extends BaseAraneaDispatcherServlet {
    public static final String ARANEA_ROOT = "applicationRoot";

    protected WebApplicationContext beanFactory;
    protected ConfigurableListableBeanFactory rootConf;

    public void init() throws ServletException {
        beanFactory = WebApplicationContextUtils.getRequiredWebApplicationContext(getServletContext());

        rootConf = new XmlBeanFactory(
                new ClassPathResource("spring-property-conf/property-custom-webapp-aranea-conf.xml"), beanFactory);
        PropertyPlaceholderConfigurer cfg = new PropertyPlaceholderConfigurer();
        cfg.setLocation(new ClassPathResource("spring-property-conf/default-aranea-conf.properties"));

        Properties localConf = new Properties();
        try {
            if (getServletContext().getResource("/WEB-INF/aranea-conf.properties") != null)
                localConf.load(getServletContext().getResourceAsStream("/WEB-INF/aranea-conf.properties"));
        } catch (IOException e) {
            throw new ServletException(e);
        }
        cfg.setProperties(localConf);
        cfg.setLocalOverride(true);

        cfg.postProcessBeanFactory(rootConf);

        super.init();
    }

    protected ServletServiceAdapterComponent buildRootComponent() {
        ServletServiceAdapterComponent adapter = (ServletServiceAdapterComponent) rootConf.getBean(ARANEA_ROOT);
        return adapter;
    }

    protected Map getEnvironmentEntries() {
        Map result = new HashMap();
        result.put(BeanFactory.class, beanFactory);
        result.put(ApplicationContext.class, beanFactory);
        result.put(WebApplicationContext.class, beanFactory);
        return result;
    }
}