jsondiscoverer.web

Class ProxyServlet

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

jsondiscoverer.web.AbstractJsonDiscoverer

jsondiscoverer.web.ProxyServlet

All Implemented Interfaces:

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

@WebServlet(value="/getJson")
public class ProxyServlet
extends AbstractJsonDiscoverer

This class acts as proxy to get the json coming from other websites.

The result is filter to the first LIMIT_LINES to avoid overloading the server.

Author:

Javier Canovas (me@jlcanovas.es)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	LIMIT_CHARS Name of the property holding the number of lines that the proxy should read
private int	limitChar Limit of chars to read
private static long	serialVersionUID
static java.lang.String	URL_PARAM Name of the property holding the name of the parameter
private java.lang.String	urlParam The name of the param which will be received in the POST call

Fields inherited from class jsondiscoverer.web.AbstractJsonDiscoverer

dotExePath, jsonParam, properties, serverURL, version, workingDir

Constructor Summary

Constructors

Constructor and Description
ProxyServlet()

Method Summary

Modifier and Type	Method and Description
protected void	doPost(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp) Performs a POST call to this servlet.
void	init() Uses the super class init method and additionally initializes urlParam and limitChar

Methods inherited from class jsondiscoverer.web.AbstractJsonDiscoverer

addResponseOptions, digestExceptionMessage, doOptions, drawModel, drawModel, drawObjectModel, encodeToString, encodeToString, encodeToString

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doGet, doHead, doPut, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

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

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

URL_PARAM

public static final java.lang.String URL_PARAM

Name of the property holding the name of the parameter

See Also:

Constant Field Values

LIMIT_CHARS

public static final java.lang.String LIMIT_CHARS

Name of the property holding the number of lines that the proxy should read

See Also:

Constant Field Values

urlParam

private java.lang.String urlParam

The name of the param which will be received in the POST call

limitChar

private int limitChar

Limit of chars to read

Constructor Detail

ProxyServlet

public ProxyServlet()

Method Detail

init

public void init()
          throws javax.servlet.ServletException

Uses the super class init method and additionally initializes urlParam and limitChar

Overrides:

init in class AbstractJsonDiscoverer

Throws:

javax.servlet.ServletException

See Also:

AbstractJsonDiscoverer.init()

doPost

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

Performs a POST call to this servlet.

Receives a URL (in the parameter set in urlParam).

Reads a number of bytes (as many as limitChar sets) from the URL and returns them as text.

Overrides:

doPost in class javax.servlet.http.HttpServlet

Parameters:

req - The Request of the call

resp - The Response to the call

Throws:

javax.servlet.ServletException

java.io.IOException

See Also:

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