org.apache.catalina.core

## Class ApplicationFilterChain

- java.lang.Object
- - org.apache.catalina.core.ApplicationFilterChain

- All Implemented Interfaces:
    FilterChain

      public final class ApplicationFilterChain
      extends Object
      implements FilterChain

  Implementation of `javax.servlet.FilterChain` used to manage the execution of a set of filters for a particular request. When the set of defined filters has all been executed, the next call to `doFilter()` will execute the servlet's `service()` method itself.
  Author:
    Craig R. McClanahan

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static int` | `INCREMENT`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `ApplicationFilterChain()`

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `doFilter(ServletRequest request, ServletResponse response)` Invoke the next filter in this chain, passing the specified request and response.
    `void` | `findNonAsyncFilters(Set<String> result)` Identifies the Filters, if any, in this FilterChain that do not support async.
    `static ServletRequest` | `getLastServicedRequest()` The last request passed to a servlet for servicing from the current thread.
    `static ServletResponse` | `getLastServicedResponse()` The last response passed to a servlet for servicing from the current thread.

    - ### Methods inherited from class java.lang.Object

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

- - ### Field Detail

    - #### INCREMENT

          public static final int INCREMENT

      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### ApplicationFilterChain

          public ApplicationFilterChain()

  - ### Method Detail

    - #### doFilter

          public void doFilter(ServletRequest request,
                               ServletResponse response)
                        throws IOException,
                               ServletException

      Invoke the next filter in this chain, passing the specified request and response. If there are no more filters in this chain, invoke the `service()` method of the servlet itself.
      Specified by:
        `doFilter` in interface `FilterChain`
      Parameters:
        `request` - The servlet request we are processing
        `response` - The servlet response we are creating
      Throws:
        `IOException` - if an input/output error occurs
        `ServletException` - if a servlet exception occurs

    - #### getLastServicedRequest

          public static ServletRequest getLastServicedRequest()

      The last request passed to a servlet for servicing from the current thread.
      Returns:
        The last request to be serviced.

    - #### getLastServicedResponse

          public static ServletResponse getLastServicedResponse()

      The last response passed to a servlet for servicing from the current thread.
      Returns:
        The last response to be serviced.

    - #### findNonAsyncFilters

          public void findNonAsyncFilters(Set<String> result)

      Identifies the Filters, if any, in this FilterChain that do not support async.
      Parameters:
        `result` - The Set to which the fully qualified class names of each Filter in this FilterChain that does not support async will be added

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