org.cometd.server.filter
Class JSONDataFilter

java.lang.Object
  org.cometd.server.filter.JSONDataFilter

All Implemented Interfaces:

DataFilter

Direct Known Subclasses:

NoMarkupFilter, NoScriptsFilter, RegexFilter

public class JSONDataFilter
extends java.lang.Object
implements DataFilter

JSON DataFilter This DataFilter walks an Object as if it was a call to JSON.toString(Object) and calls the protected methods filterString(String), filterNumber(Number), filterBoolean(Boolean), #filterArray(Object, ClientImpl) or #filterMap(Map, ClientImpl) appropriate. Derived filters may override one or more of these methods to provide filtering of specific types.

Author:

gregw

Constructor Summary

JSONDataFilter()

Method Summary

java.lang.Object	filter(ServerSession from, ServerChannel to, java.lang.Object data)
protected java.lang.Object	filterArray(ServerSession from, ServerChannel to, java.lang.Object array)
protected java.lang.Object	filterBoolean(java.lang.Boolean bool)
protected java.lang.Object	filterJSON(ServerSession from, ServerChannel to, org.eclipse.jetty.util.ajax.JSON.Generator generator)
protected java.lang.Object	filterJSON(ServerSession from, ServerChannel to, org.eclipse.jetty.util.ajax.JSON.Literal json)
protected java.lang.Object	filterMap(ServerSession from, ServerChannel to, java.util.Map object)
protected java.lang.Object	filterNumber(java.lang.Number number)
protected java.lang.Object	filterObject(ServerSession from, ServerChannel to, java.lang.Object obj)
protected java.lang.Object	filterString(java.lang.String string)
void	init(java.lang.Object init)

Methods inherited from class java.lang.Object

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

Constructor Detail

JSONDataFilter

public JSONDataFilter()

Method Detail

init

public void init(java.lang.Object init)

filter

public java.lang.Object filter(ServerSession from,
                               ServerChannel to,
                               java.lang.Object data)

Specified by:

filter in interface DataFilter

Parameters:

from - the Client that sends the data

to - the channel the data is being sent to

data - the data being sent

Returns:

the transformed data or null if the message should be aborted

filterString

protected java.lang.Object filterString(java.lang.String string)

filterBoolean

protected java.lang.Object filterBoolean(java.lang.Boolean bool)

filterNumber

protected java.lang.Object filterNumber(java.lang.Number number)

filterArray

protected java.lang.Object filterArray(ServerSession from,
                                       ServerChannel to,
                                       java.lang.Object array)

filterMap

protected java.lang.Object filterMap(ServerSession from,
                                     ServerChannel to,
                                     java.util.Map object)

filterJSON

protected java.lang.Object filterJSON(ServerSession from,
                                      ServerChannel to,
                                      org.eclipse.jetty.util.ajax.JSON.Generator generator)

filterJSON

protected java.lang.Object filterJSON(ServerSession from,
                                      ServerChannel to,
                                      org.eclipse.jetty.util.ajax.JSON.Literal json)

filterObject

protected java.lang.Object filterObject(ServerSession from,
                                        ServerChannel to,
                                        java.lang.Object obj)