org.apache.nifi.web

Class ContentViewerController

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

org.apache.nifi.web.ContentViewerController

All Implemented Interfaces:

Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class ContentViewerController
extends javax.servlet.http.HttpServlet

Controller servlet for viewing content. This is responsible for generating the markup for the header and footer of the page. Included in that is the combo that allows the user to choose how they wait to view the data (original, formatted, hex). If a data viewer is registered for the detected content type, it will include the markup it generates in the response.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private static int	BUFFER_LENGTH
private static org.slf4j.Logger	logger

Constructor Summary

Constructors

Constructor and Description
ContentViewerController()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) Gets the content and defers to registered viewers to generate the markup.
private ContentRequestContext	getContentRequest(javax.servlet.http.HttpServletRequest request)

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

logger

private static final org.slf4j.Logger logger

BUFFER_LENGTH

private static final int BUFFER_LENGTH

See Also:

Constant Field Values

Constructor Detail

ContentViewerController

public ContentViewerController()

Method Detail

doGet

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

Gets the content and defers to registered viewers to generate the markup.

Overrides:

doGet in class javax.servlet.http.HttpServlet

Parameters:

request - servlet request

response - servlet response

Throws:

javax.servlet.ServletException - if a servlet-specific error occurs

IOException - if an I/O error occurs

getContentRequest

private ContentRequestContext getContentRequest(javax.servlet.http.HttpServletRequest request)

Parameters:

request - request

Returns:

Get the content request context based on the specified request