mockrollercontext.java

这个weblogging 设计得比较精巧

/*
 * Created on Mar 4, 2004
 */
package org.roller.presentation;
import java.io.File;
import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.roller.RollerException;

/**
 * @author lance.lavandowska
 */
public class MockRollerContext extends RollerContext
{
    private static Log mLogger =
        LogFactory.getFactory().getInstance(MockRollerContext.class);
    private static ServletContext mContext = null;
    public void init(ServletContext sc)
    {
        mLogger.debug("MockRollerContext initializing");
        
        // initialize super 
        super.contextInitialized(new ServletContextEvent(sc));
        
        // Save context in self and self in context
        mContext = sc;
        mContext.setAttribute(ROLLER_CONTEXT, this);
        mContext.setAttribute("org.roller.absoluteContextURL", "/");
    }
    //-----------------------------------------------------------------------
    /** Because I cannot set the super's values, I have to
     * overide the methods as well */  
    public static RollerContext getRollerContext(ServletContext sc)
    {
        // get roller from servlet context
        return (RollerContext) mContext.getAttribute(ROLLER_CONTEXT);
    }
    //-----------------------------------------------------------------------
    /** Because I cannot set the super's values, I have to
     * overide the methods as well */  
    public static ServletContext getServletContext()
    {
        return mContext;
    }

    //-----------------------------------------------------------------------
    /** Because I cannot set the super's values, I have to
     * overide the methods as well */
    public String getRollerVersion()
    {
        return super.getRollerVersion();
    }
    //-----------------------------------------------------------------------
    /** Because I cannot set the super's values, I have to
     * overide the methods as well */
    public String getRollerBuildTime()
    {
        return super.getRollerBuildTime();
    }
    //-----------------------------------------------------------------------
    /** Because I cannot set the super's values, I have to
     * overide the methods as well */
    public String getRollerBuildUser()
    {
        return super.getRollerBuildUser();
    }

    //-----------------------------------------------------------------------
    /** Because I cannot set the super's values, I have to
     * overide the methods as well */
    public String getAbsoluteContextUrl()
    {
        return "";
    }
    //-----------------------------------------------------------------------
    /** Because I cannot set the super's values, I have to
     * overide the methods as well */
    public String getAbsoluteContextUrl(HttpServletRequest request)
    {
        return request.getScheme() +"://" + request.getServerName() + "";
    }
    //-----------------------------------------------------------------------
    /** Because I cannot set the super's values, I have to
     * overide the methods as well */
    /* not available anymore ... use the new config classes instead -- Allen G
    public RollerConfigData getRollerConfig()
    {
        return super.getRollerConfig();
    }
    */
    //------------------------------------------------------------------------
    public String getConfigPath() 
    {
        String root = System.getProperty("ro.build");
        String configPath =
            root
                + File.separator
                + "roller"
                + File.separator
                + "WEB-INF"
                + File.separator
                + "roller-config.xml";
        return configPath;
    }
    protected void upgradeDatabaseIfNeeded() throws RollerException
    {
        // for now, this is a no-op
    }

}