Class Filter.Chain

Enclosing class:
Filter 
public static class Filter.Chain
extends Object

a chain of filters associated with a HttpServer. Each filter in the chain is given one of these so it can invoke the next filter in the chain

Constructors

Constructor Description
Chain​(List<Filter> filters, HttpHandler handler)

Methods

Modifier and Type Method Description
void doFilter​(HttpExchange exchange)

calls the next filter in the chain, or else the users exchange handler, if this is the final filter in the chain.

Methods declared in class java.lang.Object

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

Constructors

Chain

public Chain(List<Filter> filters,
             HttpHandler handler)

Methods

doFilter

public void doFilter(HttpExchange exchange)
              throws IOException

calls the next filter in the chain, or else the users exchange handler, if this is the final filter in the chain. The Filter may decide to terminate the chain, by not calling this method. In this case, the filter must send the response to the request, because the application's exchange handler will not be invoked.

Parameters:
exchange - the HttpExchange
Throws:
IOException - let exceptions pass up the stack
NullPointerException - if exchange is null