Jetty :: Server Core 7.0.0.pre5 · org.mortbay.jetty.servlet.StatisticsServlet

Modifier and Type	Field and Description
private Connector[]	_connectors
private java.lang.management.MemoryMXBean	_memoryBean
pack-priv boolean	_restrictToLocalhost
private Server	_server
private StatisticsHandler	_statsHandler

Access	Constructor and Description
public	StatisticsServlet()

Method Summary

Modifier and Type	Method and Description
protected void	doGet(HttpServletRequest an `HttpServletRequest` object that contains the request the client has made of the servlet req, HttpServletResponse an `HttpServletResponse` object that contains the response the servlet sends to the client resp) Overrides javax.servlet.http.HttpServlet.doGet. Called by the server (via the `service` method) to allow a servlet to handle a GET request.
public void	doPost(HttpServletRequest an `HttpServletRequest` object that contains the request the client has made of the servlet sreq, HttpServletResponse an `HttpServletResponse` object that contains the response the servlet sends to the client sres) Overrides javax.servlet.http.HttpServlet.doPost. Called by the server (via the `service` method) to allow a servlet to handle a POST request.
public void	init() Overrides javax.servlet.GenericServlet.init. A convenience method which can be overridden so that there's no need to call `super.init(config)`.
private void	sendTextResponse(HttpServletResponse response)
private void	sendXmlResponse(HttpServletResponse response)

Inherited from javax.servlet.http.HttpServlet:: doDelete doHead doOptions doPut doTrace getLastModified service service

_connectors	back to summary
private Connector[] _connectors

_memoryBean	back to summary
private java.lang.management.MemoryMXBean _memoryBean

_restrictToLocalhost	back to summary
pack-priv boolean _restrictToLocalhost

_server	back to summary
private Server _server

_statsHandler	back to summary
private StatisticsHandler _statsHandler

StatisticsServlet	back to summary
public StatisticsServlet()

Method Detail

doGet back to summary

doGet	back to summary
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException Overrides javax.servlet.http.HttpServlet.doGet. Doc from javax.servlet.http.HttpServlet.doGet. Called by the server (via the `service` method) to allow a servlet to handle a GET request. Overriding this method to support a GET request also automatically supports an HTTP HEAD request. A HEAD request is a GET request that returns no body in the response, only the request header fields. When overriding this method, read the request data, write the response headers, get the response's writer or output stream object, and finally, write the response data. It's best to include content type and encoding. When using a `PrintWriter` object to return the response, set the content type before accessing the `PrintWriter` object. The servlet container must write the headers before committing the response, because in HTTP the headers must be sent before the response body. Where possible, set the Content-Length header (with the `javax.servlet.ServletResponse#setContentLength` method), to allow the servlet container to use a persistent connection to return its response to the client, improving performance. The content length is automatically set if the entire response fits inside the response buffer. When using HTTP 1.1 chunked encoding (which means that the response has a Transfer-Encoding header), do not set the Content-Length header. The GET method should be safe, that is, without any side effects for which users are held responsible. For example, most form queries have no side effects. If a client request is intended to change stored data, the request should use some other HTTP method. The GET method should also be idempotent, meaning that it can be safely repeated. Sometimes making a method safe also makes it idempotent. For example, repeating queries is both safe and idempotent, but buying a product online or modifying data is neither safe nor idempotent. If the request is incorrectly formatted, `doGet` returns an HTTP "Bad Request" message. Parameters req:HttpServletRequest an `HttpServletRequest` object that contains the request the client has made of the servlet resp:HttpServletResponse an `HttpServletResponse` object that contains the response the servlet sends to the client Exceptions ServletException: if the request for the GET could not be handled IOException: if an input or output error is detected when the servlet handles the GET request

protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException

Overrides javax.servlet.http.HttpServlet.doGet.

Doc from javax.servlet.http.HttpServlet.doGet.

Called by the server (via the service method) to allow a servlet to handle a GET request.

Overriding this method to support a GET request also automatically supports an HTTP HEAD request. A HEAD request is a GET request that returns no body in the response, only the request header fields.

When overriding this method, read the request data, write the response headers, get the response's writer or output stream object, and finally, write the response data. It's best to include content type and encoding. When using a PrintWriter object to return the response, set the content type before accessing the PrintWriter object.

The servlet container must write the headers before committing the response, because in HTTP the headers must be sent before the response body.

Where possible, set the Content-Length header (with the javax.servlet.ServletResponse#setContentLength method), to allow the servlet container to use a persistent connection to return its response to the client, improving performance. The content length is automatically set if the entire response fits inside the response buffer.

When using HTTP 1.1 chunked encoding (which means that the response has a Transfer-Encoding header), do not set the Content-Length header.

The GET method should be safe, that is, without any side effects for which users are held responsible. For example, most form queries have no side effects. If a client request is intended to change stored data, the request should use some other HTTP method.

The GET method should also be idempotent, meaning that it can be safely repeated. Sometimes making a method safe also makes it idempotent. For example, repeating queries is both safe and idempotent, but buying a product online or modifying data is neither safe nor idempotent.

If the request is incorrectly formatted, doGet returns an HTTP "Bad Request" message.

Parameters

req:HttpServletRequest: an HttpServletRequest object that contains the request the client has made of the servlet
resp:HttpServletResponse: an HttpServletResponse object that contains the response the servlet sends to the client

Exceptions

ServletException:: if the request for the GET could not be handled
IOException:: if an input or output error is detected when the servlet handles the GET request

doPost back to summary

doPost	back to summary
public void doPost(HttpServletRequest sreq, HttpServletResponse sres) throws ServletException, IOException Overrides javax.servlet.http.HttpServlet.doPost. Doc from javax.servlet.http.HttpServlet.doPost. Called by the server (via the `service` method) to allow a servlet to handle a POST request. The HTTP POST method allows the client to send data of unlimited length to the Web server a single time and is useful when posting information such as credit card numbers. When overriding this method, read the request data, write the response headers, get the response's writer or output stream object, and finally, write the response data. It's best to include content type and encoding. When using a `PrintWriter` object to return the response, set the content type before accessing the `PrintWriter` object. The servlet container must write the headers before committing the response, because in HTTP the headers must be sent before the response body. Where possible, set the Content-Length header (with the `javax.servlet.ServletResponse#setContentLength` method), to allow the servlet container to use a persistent connection to return its response to the client, improving performance. The content length is automatically set if the entire response fits inside the response buffer. When using HTTP 1.1 chunked encoding (which means that the response has a Transfer-Encoding header), do not set the Content-Length header. This method does not need to be either safe or idempotent. Operations requested through POST can have side effects for which the user can be held accountable, for example, updating stored data or buying items online. If the HTTP POST request is incorrectly formatted, `doPost` returns an HTTP "Bad Request" message. Parameters sreq:HttpServletRequest an `HttpServletRequest` object that contains the request the client has made of the servlet sres:HttpServletResponse an `HttpServletResponse` object that contains the response the servlet sends to the client Exceptions ServletException: if the request for the POST could not be handled IOException: if an input or output error is detected when the servlet handles the request

public void doPost(HttpServletRequest sreq, HttpServletResponse sres) throws ServletException, IOException

Overrides javax.servlet.http.HttpServlet.doPost.

Doc from javax.servlet.http.HttpServlet.doPost.

Called by the server (via the service method) to allow a servlet to handle a POST request. The HTTP POST method allows the client to send data of unlimited length to the Web server a single time and is useful when posting information such as credit card numbers.

The servlet container must write the headers before committing the response, because in HTTP the headers must be sent before the response body.

When using HTTP 1.1 chunked encoding (which means that the response has a Transfer-Encoding header), do not set the Content-Length header.

This method does not need to be either safe or idempotent. Operations requested through POST can have side effects for which the user can be held accountable, for example, updating stored data or buying items online.

If the HTTP POST request is incorrectly formatted, doPost returns an HTTP "Bad Request" message.

Parameters

sreq:HttpServletRequest: an HttpServletRequest object that contains the request the client has made of the servlet
sres:HttpServletResponse: an HttpServletResponse object that contains the response the servlet sends to the client

Exceptions

ServletException:: if the request for the POST could not be handled
IOException:: if an input or output error is detected when the servlet handles the request

init back to summary

init	back to summary
public void init() throws ServletException Overrides javax.servlet.GenericServlet.init. Doc from javax.servlet.GenericServlet.init. A convenience method which can be overridden so that there's no need to call `super.init(config)`. Instead of overriding `init(ServletConfig)`, simply override this method and it will be called by `GenericServlet.init(ServletConfig config)`. The `ServletConfig` object can still be retrieved via `getServletConfig`. Exceptions ServletException: if an exception occurs that interrupts the servlet's normal operation

public void init() throws ServletException

Overrides javax.servlet.GenericServlet.init.

Doc from javax.servlet.GenericServlet.init.

A convenience method which can be overridden so that there's no need to call super.init(config).

Instead of overriding init(ServletConfig), simply override this method and it will be called by GenericServlet.init(ServletConfig config). The ServletConfig object can still be retrieved via getServletConfig.

Exceptions

ServletException:: if an exception occurs that interrupts the servlet's normal operation

sendTextResponse	back to summary
private void sendTextResponse(HttpServletResponse response) throws IOException

sendXmlResponse	back to summary
private void sendXmlResponse(HttpServletResponse response) throws IOException

public Class StatisticsServlet

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail