public class ChainProcessor extends ChainServlet
Custom subclass of ChainServlet
that also dispatches incoming
requests to a configurable Command
loaded from the specified
Catalog
.
In addition to the servlet init parameters supported by
ChainServlet
, this class supports the following additional
parameters:
Command
(looked up in our configured Catalog
used
to process all incoming servlet requests. If not specified,
defaults to command
.Also, the org.apache.commons.chain.CONFIG_ATTR
init parameter is also used to identify the
Context
attribute under
which our configured Catalog
will be made available to
Command
s processing our requests, in addition to its definition
of the ServletContext
attribute key under which the
Catalog
is available.
Modifier and Type | Field and Description |
---|---|
static String |
CATALOG
The name of the servlet init parameter containing the name of the
Catalog to use for processing incoming requests. |
static String |
CATALOG_DEFAULT
|
static String |
COMMAND
|
CONFIG_ATTR, CONFIG_CLASS_RESOURCE, CONFIG_WEB_RESOURCE, RULE_SET
Constructor and Description |
---|
ChainProcessor() |
Modifier and Type | Method and Description |
---|---|
void |
destroy()
Clean up as this application is shut down.
|
void |
init()
Cache the name of the command we should execute for each request.
|
void |
service(javax.servlet.http.HttpServletRequest request,
javax.servlet.http.HttpServletResponse response)
Configure a
ServletWebContext for the current request, and
pass it to the execute() method of the specified
Command , loaded from our configured Catalog . |
doDelete, doGet, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service
public static final String CATALOG
The name of the servlet init parameter containing the name of the
Catalog
to use for processing incoming requests.
public static final String CATALOG_DEFAULT
public static final String COMMAND
The name of the servlet init parameter containing the name of the
Command
(loaded from our configured Catalog
to use
for processing each incoming request.
public void destroy()
Clean up as this application is shut down.
destroy
in interface javax.servlet.Servlet
destroy
in class ChainServlet
public void init() throws javax.servlet.ServletException
Cache the name of the command we should execute for each request.
init
in class ChainServlet
javax.servlet.ServletException
- if an initialization error occurspublic void service(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) throws IOException, javax.servlet.ServletException
Configure a ServletWebContext
for the current request, and
pass it to the execute()
method of the specified
Command
, loaded from our configured Catalog
.
service
in class ChainServlet
request
- The request we are processingresponse
- The response we are creatingIOException
- if an input/output error occursjavax.servlet.ServletException
- if a servlet exception occursCopyright © 2003–2021 The Apache Software Foundation. All rights reserved.