org.astrogrid.samp.httpd

Class MultiURLMapperHandler

java.lang.Object

org.astrogrid.samp.httpd.MultiURLMapperHandler

All Implemented Interfaces:

HttpServer.Handler

public class MultiURLMapperHandler
extends Object
implements HttpServer.Handler

Handler implementation which allows the server to serve multiple separate resources which are available to it, but not necessarily to external clients, as URLs. The main use for this is if the URLs are jar:-type ones (not available to clients outside the current JVM) or file:-type ones (not available to clients on different hosts). Only single resources, not whole trees, can be exported in this way.

The functionality of this class overlaps with that of URLMapperHandler. They may be merged at some point.

Since:

21 Jul 2009

Author:

Mark Taylor

Constructor Summary

Constructors

Constructor and Description
MultiURLMapperHandler(HttpServer server, String basePath) Constructor.

Method Summary

Modifier and Type	Method and Description
URL	addLocalUrl(URL localUrl) Adds a local URL to the list of those which can be served by this handler, and returns the public URL at which it will be available.
URL	getBaseUrl() Returns the base URL for resources served by this handler.
void	removeServerUrl(URL url) Removes access to a resource which was publicised by a previous call to addLocalUrl(java.net.URL).
HttpServer.Response	serveRequest(HttpServer.Request request) Provides a response to an HTTP request.

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiURLMapperHandler

public MultiURLMapperHandler(HttpServer server,
                             String basePath)
                      throws MalformedURLException

Constructor.

Parameters:

server - server within which this handler will be used

basePath - path of served resources relative to the base URL of the server itself

Throws:

MalformedURLException

Method Detail

getBaseUrl

public URL getBaseUrl()

Returns the base URL for resources served by this handler.

Returns:

base URL for output

addLocalUrl

public URL addLocalUrl(URL localUrl)

Adds a local URL to the list of those which can be served by this handler, and returns the public URL at which it will be available.

Parameters:

localUrl - URL readable within this JVM

Returns:

URL readable in principle by external agents with the same content as localUrl

removeServerUrl

public void removeServerUrl(URL url)

Removes access to a resource which was publicised by a previous call to addLocalUrl(java.net.URL).

Parameters:

url - result of previous call to addLocalUrl

serveRequest

public HttpServer.Response serveRequest(HttpServer.Request request)

Description copied from interface: HttpServer.Handler

Provides a response to an HTTP request. A handler which does not recognise the URL should simply return null; in this case there may be another handler which is able to serve the request. If the URL appears to be in this handler's domain but the request cannot be served for some reason, an error response should be returned.

Specified by:

serveRequest in interface HttpServer.Handler

Parameters:

request - HTTP request

Returns:

response response to request, or null