Package digilib.servlet

Class ScalerNoThread

  • All Implemented Interfaces:
    Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig
    public class ScalerNoThread
extends javax.servlet.http.HttpServlet
    Version of Scaler servlet that doesn't use a thread pool.
    See Also:
    Serialized Form

    • Constructor Summary

      Constructors 
      Constructor Description
      ScalerNoThread()  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static void digilibError​(ScalerNoThread.ErrMsg type, ScalerNoThread.Error error, String msg, javax.servlet.http.HttpServletResponse response)
      Sends an error to the client as text or image.
      void doGet​(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)  
      protected void doHead​(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)  
      protected void doOptions​(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)  
      void doPost​(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)  
      long getLastModified​(javax.servlet.http.HttpServletRequest request)  
      static String getVersion()  
      void init​(javax.servlet.ServletConfig config)  
      void processRequest​(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
      Service this request using the response.

      • Methods inherited from class javax.servlet.http.HttpServlet

        doDelete, doPut, doTrace, service, service

      • Methods inherited from class javax.servlet.GenericServlet

        destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

    • Field Detail

      • version

        public static final String version
        digilib servlet version (for all components)

      • accountlog

        protected static org.slf4j.Logger accountlog
        logger for accounting requests

      • logger

        protected static org.slf4j.Logger logger
        gengeral logger for this class

      • authlog

        protected static org.slf4j.Logger authlog
        logger for authentication related

      • dirCache

        protected DocuDirCache dirCache
        DocuDirCache instance

      • denyImgFile

        public static File denyImgFile
        authentication error image file

      • errorImgFile

        public static File errorImgFile
        image error image file

      • notfoundImgFile

        public static File notfoundImgFile
        not found error image file

      • sendFileAllowed

        protected boolean sendFileAllowed
        send files as is?

      • useAuthorization

        protected boolean useAuthorization
        use authorization database

      • authzOp

        protected AuthzOps authzOp
        AuthOps instance

    • Constructor Detail

      • ScalerNoThread

        public ScalerNoThread()

    • Method Detail

      • init

        public void init​(javax.servlet.ServletConfig config)
          throws javax.servlet.ServletException
        Specified by:
        init in interface javax.servlet.Servlet
        Overrides:
        init in class javax.servlet.GenericServlet
        Throws:
        javax.servlet.ServletException

      • getLastModified

        public long getLastModified​(javax.servlet.http.HttpServletRequest request)
        Overrides:
        getLastModified in class javax.servlet.http.HttpServlet

      • doGet

        public void doGet​(javax.servlet.http.HttpServletRequest request,
                  javax.servlet.http.HttpServletResponse response)
           throws javax.servlet.ServletException
        Overrides:
        doGet in class javax.servlet.http.HttpServlet
        Throws:
        javax.servlet.ServletException

      • doPost

        public void doPost​(javax.servlet.http.HttpServletRequest request,
                   javax.servlet.http.HttpServletResponse response)
            throws javax.servlet.ServletException
        Overrides:
        doPost in class javax.servlet.http.HttpServlet
        Throws:
        javax.servlet.ServletException

      • doHead

        protected void doHead​(javax.servlet.http.HttpServletRequest req,
                      javax.servlet.http.HttpServletResponse resp)
               throws javax.servlet.ServletException,
                      IOException
        Overrides:
        doHead in class javax.servlet.http.HttpServlet
        Throws:
        javax.servlet.ServletException
        IOException

      • doOptions

        protected void doOptions​(javax.servlet.http.HttpServletRequest req,
                         javax.servlet.http.HttpServletResponse resp)
                  throws javax.servlet.ServletException,
                         IOException
        Overrides:
        doOptions in class javax.servlet.http.HttpServlet
        Throws:
        javax.servlet.ServletException
        IOException

      • processRequest

        public void processRequest​(javax.servlet.http.HttpServletRequest request,
                           javax.servlet.http.HttpServletResponse response)
                    throws javax.servlet.ServletException
        Service this request using the response.
        Parameters:
        request - the HttpServletRequest
        response - the HttpServletResponse
        Throws:
        javax.servlet.ServletException - on error

      • digilibError

        public static void digilibError​(ScalerNoThread.ErrMsg type,
                                ScalerNoThread.Error error,
                                String msg,
                                javax.servlet.http.HttpServletResponse response)
        Sends an error to the client as text or image.
        Parameters:
        type - the ErrMsg
        error - the Error
        msg - the msg
        response - the HttpServletResponse

      • getVersion

        public static String getVersion()
        Returns:
        the version