org.nanocontainer.nanowar.chain
Class ServletChainBuilder

java.lang.Object
  org.nanocontainer.nanowar.chain.ServletChainBuilder

public class ServletChainBuilder

extends Object

ServletChainBuilder builds ContainerChains from servlet path and caches container recorders for later use.

Author:

Kontantin Pribluda, Mauro Talevi

Constructor Summary

ServletChainBuilder(javax.servlet.ServletContext context, String containerBuilderClassName, String containerScriptName, String emptyContainerScript)
Constructor for the ServletChainBuilder object

Method Summary

ContainerChain	buildChain(Object[] pathElements, org.picocontainer.PicoContainer parent) Build ContainerChain for path elements
void	populateContainerForPath(org.picocontainer.MutablePicoContainer container, String path) populate container for given path.
void	populateRecursively(ContainerChain chain, org.picocontainer.PicoContainer parent, Iterator pathElements) Create and populate containers in recursive way

Methods inherited from class java.lang.Object

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

Constructor Detail

ServletChainBuilder

public ServletChainBuilder(javax.servlet.ServletContext context,
                           String containerBuilderClassName,
                           String containerScriptName,
                           String emptyContainerScript)

Constructor for the ServletChainBuilder object

Parameters:

context - the ServletContext

containerBuilderClassName - the class name of the ContainerBuilder

containerScriptName - the name of the container script resource

emptyContainerScript - the script for empty container if the container config is not found

Method Detail

populateContainerForPath

public void populateContainerForPath(org.picocontainer.MutablePicoContainer container,
                                     String path)
                              throws ClassNotFoundException

populate container for given path. cache result in container recorders

Parameters:

container - the MutablePicoContainer used by the recorder

path - the String representing the servlet path used as key for the recorder cache

Throws:

ClassNotFoundException - if the container builder class is not found

buildChain

public ContainerChain buildChain(Object[] pathElements,
                                 org.picocontainer.PicoContainer parent)
                          throws ClassNotFoundException

Build ContainerChain for path elements

Parameters:

pathElements - an array of Objects used as keys for selecting Application objects

parent - the parent PicoContainer or null

Returns:

The configured ContainerChain

Throws:

ClassNotFoundException

populateRecursively

public void populateRecursively(ContainerChain chain,
                                org.picocontainer.PicoContainer parent,
                                Iterator pathElements)
                         throws ClassNotFoundException

Create and populate containers in recursive way

Parameters:

chain - the ContainerChain to which the containers are added

parent - the parent PicoContainer

pathElements - the Iterator on the path elements

Throws:

ClassNotFoundException