za.org.coefficient.servlet
Class GenericDownloadServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          za.org.coefficient.servlet.GenericDownloadServlet

All Implemented Interfaces:

java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class GenericDownloadServlet
extends javax.servlet.http.HttpServlet

This is the generic download servlet. It allows any module to register a listener method for downloading files. Once the downloader servlet is called it calls the registered method from a module.

Author:

Leon Messerschmidt

See Also:

Serialized Form

Nested Class Summary

static class

GenericDownloadServlet.Provider This is a static inner class that stores the data for an email provider

Field Summary

private static java.util.Map

fileProviders

Constructor Summary

GenericDownloadServlet()

Method Summary

static void	addProvider(java.lang.String provider, java.lang.String module, java.lang.String method) Add a new downloader provider to the system.
protected void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Call the download provider
protected void	doPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Redirects to doGet
private void	sendError(javax.servlet.http.HttpServletResponse response, java.lang.String error) Formats an error that is sent to the user in a human readible string

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPut, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

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

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

fileProviders

private static java.util.Map fileProviders

Constructor Detail

GenericDownloadServlet

public GenericDownloadServlet()

Method Detail

addProvider

public static void addProvider(java.lang.String provider,
                               java.lang.String module,
                               java.lang.String method)

Add a new downloader provider to the system.

Parameters:

provider -

module -

method -

doGet

protected void doGet(javax.servlet.http.HttpServletRequest request,
                     javax.servlet.http.HttpServletResponse response)
              throws javax.servlet.ServletException,
                     java.io.IOException

Call the download provider

Overrides:

doGet in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

java.io.IOException

doPost

protected void doPost(javax.servlet.http.HttpServletRequest request,
                      javax.servlet.http.HttpServletResponse response)
               throws javax.servlet.ServletException,
                      java.io.IOException

Redirects to doGet

Overrides:

doPost in class javax.servlet.http.HttpServlet

Throws:

javax.servlet.ServletException

java.io.IOException

See Also:

doGet, HttpServlet.doPost(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)

sendError

private void sendError(javax.servlet.http.HttpServletResponse response,
                       java.lang.String error)

Formats an error that is sent to the user in a human readible string

Parameters:

response -

error -