com.compoze.discussion
Class TopicFileAttachmentServlet

java.lang.Object
  |
  +--javax.servlet.GenericServlet
        |
        +--javax.servlet.http.HttpServlet
              |
              +--com.compoze.discussion.TopicFileAttachmentServlet

All Implemented Interfaces:

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

public class TopicFileAttachmentServlet

extends javax.servlet.http.HttpServlet

This class is a servlet that writes the file attachment. The servlet expects that an Http session attribute called DISCUSSION_SESSION_ATTRIBUTE contains the DiscussionSession object that is the discussion session.

The servlet also expects that three request parameters be set: the TOPIC_ID parameter must contain the ID of the topic which has the file attachment to serve; the FILE_ATTACHMENT_ID parameter must contain the ID of the file attachment to serve.

See Also:

Serialized Form

Field Summary

static java.lang.String	DISCUSSION_SESSION_ATTRIBUTE The session property name holding the DiscussionSession object.
static java.lang.String	FILE_ATTACHMENT_ID The file attachment id request parameter.
static java.lang.String	TOPIC_ID The topic id request parameter.

Constructor Summary

TopicFileAttachmentServlet()

Method Summary

void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
protected FileAttachment	getFileAttachment(javax.servlet.http.HttpServletRequest request) Gets the file attachment.

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPost, 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

TOPIC_ID

public static final java.lang.String TOPIC_ID

The topic id request parameter.

FILE_ATTACHMENT_ID

public static final java.lang.String FILE_ATTACHMENT_ID

The file attachment id request parameter.

DISCUSSION_SESSION_ATTRIBUTE

public static final java.lang.String DISCUSSION_SESSION_ATTRIBUTE

The session property name holding the DiscussionSession object.

Constructor Detail

TopicFileAttachmentServlet

public TopicFileAttachmentServlet()

Method Detail

doGet

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

Overrides:

doGet in class javax.servlet.http.HttpServlet

getFileAttachment

protected FileAttachment getFileAttachment(javax.servlet.http.HttpServletRequest request)

Gets the file attachment.

Parameters:

request - the http servlet request

Returns:

the file attachment or null if not found