com.nuecho.application.grammarserver.servlets
Class SingleJsonContextInitializer

java.lang.Object
  com.nuecho.application.grammarserver.servlets.SingleJsonContextInitializer

All Implemented Interfaces:

ContextInitializer

public final class SingleJsonContextInitializer
extends java.lang.Object
implements ContextInitializer

Implementation of ContextInitializer that expects the "context" key, in the parameterMap, to be a JSON string. That single string is converted to a JSON value representing the whole instantiation context map, from which keys and values are extracted to get the actual instantiation context.

Version:

2.0.0

See Also:

ContextInitializer

Constructor Summary

SingleJsonContextInitializer()

Method Summary

java.util.Map

getContext(java.util.Map parameteters, GrammarFragmentFactory factory, CacheControl control) Computes an instantiation context from a map of parameters.

Methods inherited from class java.lang.Object

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

Constructor Detail

SingleJsonContextInitializer

public SingleJsonContextInitializer()

Method Detail

getContext

public java.util.Map getContext(java.util.Map parameteters,
                                GrammarFragmentFactory factory,
                                CacheControl control)
                         throws ContextInitializationException

Description copied from interface: ContextInitializer

Computes an instantiation context from a map of parameters. Each parameter name (a string) is bound to an array of values (an array of Java strings).

Specified by:

getContext in interface ContextInitializer

Parameters:

parameteters - the input parameters

factory - a grammar fragment factory object

control - a cache control object

Returns:

the instantiation context that maps strings to objects.

Throws:

ContextInitializationException - when an error occurs during the building of the instantiation context