com.scf.web.context.WebContext.java Source code

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Here is the source code for com.scf.web.context.WebContext.java

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package com.scf.web.context;

import java.io.IOException;

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

import org.springframework.core.io.Resource;
import org.springframework.web.context.support.ServletContextResource;

import com.scf.core.context.IdentityContext;
import com.scf.utils.FileUtilies;

/**
 * web ?????
 * @author wubin
 * @date 2016727 ?4:47:37 
 * @version V1.1.0
 */
public abstract class WebContext implements IdentityContext {

    /**
     * 
     */
    public final static String SESSION_IDENTITY = "SESSION_IDENTITY";

    /**
     * 
     */
    private static String WEB_ROOT_PATH = null;

    /**
     * ?
     * 
     */

    public abstract void destorySession();

    /**
     * 
     * @return
     */
    protected abstract HttpSession getSession();

    /**
     * 
     * @return
     */
    protected abstract HttpServletRequest getHttpServletRequest();

    /**
     * 
     * @return
     */
    protected abstract HttpServletResponse getHttpServletResponse();

    /**
     * 
     * @return
     */
    protected abstract ServletContext getServletContext();

    /**
     *
     * @return
     */
    public String getWebRootPath() {
        if (WEB_ROOT_PATH == null) {
            try {
                Resource resource = new ServletContextResource(getServletContext(), "/");
                WEB_ROOT_PATH = resource.getFile().getAbsolutePath();
                if (WEB_ROOT_PATH == null) {
                    WEB_ROOT_PATH = resource.getFile().getAbsoluteFile().getAbsolutePath();
                }
                WEB_ROOT_PATH = FileUtilies.fixPath(WEB_ROOT_PATH);
                WEB_ROOT_PATH += "/";
            } catch (NullPointerException e1) {
                throw new IllegalAccessError("Can not init system root path. please check.");
            } catch (IOException e2) {
                throw new IllegalAccessError("Can not init system root path. please check.");
            }
        }
        return WEB_ROOT_PATH;
    }

}