ro.isdc.wro.model.resource.locator.support

Class DispatcherStreamLocator

java.lang.Object

ro.isdc.wro.model.resource.locator.support.DispatcherStreamLocator

public class DispatcherStreamLocator
extends Object

Responsible to locate a context relative resource. Attempts to locate the resource using RequestDispatcher . If the dispatcher fails, it will fallback resource retrieval to a http call using UrlUriLocator.

Author:

Alex Objelean

Field Summary

Fields

Modifier and Type	Field and Description
static String	ATTRIBUTE_INCLUDED_BY_DISPATCHER Attribute indicating that the request is included from within a wro request cycle.

Constructor Summary

Constructors

Constructor and Description
DispatcherStreamLocator()

Method Summary

Methods

Modifier and Type	Method and Description
InputStream	getInputStream(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response, String location) /** When using JBoss Portal and it has some funny quirks...actually a portal application have several small web application behind it.
int	getTimeout()
static boolean	isIncludedRequest(javax.servlet.http.HttpServletRequest request)
InputStream	locateExternal(javax.servlet.http.HttpServletRequest request, String location)
void	setTimeout(int timeout)

Methods inherited from class java.lang.Object

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

Field Detail

ATTRIBUTE_INCLUDED_BY_DISPATCHER

public static final String ATTRIBUTE_INCLUDED_BY_DISPATCHER

Attribute indicating that the request is included from within a wro request cycle. This is required to prevent StackOverflowError.

Constructor Detail

DispatcherStreamLocator

public DispatcherStreamLocator()

Method Detail

getInputStream

public InputStream getInputStream(javax.servlet.http.HttpServletRequest request,
                         javax.servlet.http.HttpServletResponse response,
                         String location)
                           throws IOException

/** When using JBoss Portal and it has some funny quirks...actually a portal application have several small web application behind it. So when it intercepts a requests for portal then it start bombing the the application behind the portal with multiple threads (web requests) that are combined with threads for wro4j.

Parameters:

location - a path to a request relative resource to locate.

Returns:

a valid stream for required location. This method will never return a null.

Throws:

IOException - if the stream cannot be located at the specified location.

locateExternal

public InputStream locateExternal(javax.servlet.http.HttpServletRequest request,
                         String location)
                           throws IOException

Throws:

IOException

isIncludedRequest

public static boolean isIncludedRequest(javax.servlet.http.HttpServletRequest request)

Returns:

true if the request is included from within wro request cycle.

setTimeout

public void setTimeout(int timeout)

Parameters:

timeout - time (in millis) used when an external url is requested for both: connection & read.

getTimeout

public int getTimeout()

Returns:

the configured timeout for this instance of locator.