com.webmethods.caf.faces.url

Class InMemoryStreamHandler

java.lang.Object

java.net.URLStreamHandler

org.osgi.service.url.AbstractURLStreamHandlerService

com.webmethods.caf.faces.url.InMemoryStreamHandler

All Implemented Interfaces:

org.osgi.service.url.URLStreamHandlerService

public class InMemoryStreamHandler
extends org.osgi.service.url.AbstractURLStreamHandlerService

Implementation of URLStreamHandler, registered as a service in osgi. Handles URLs starting with the prefix "inmemory". The idea is to pre-pend "inmemory" to any URL e.g inmemory:jar://path, so that the jvm uses this handler. Then strip the url of "inmemory", construct the original URL , read its resource and cache it in memory instead of reading the resource from file system. Used during the webserver MWS phase when jsf reads tag libraries and faces.config files.

Field Summary

Fields

Modifier and Type	Field and Description
static String	INMEMORY_PROTOCOL_PREFIX

Fields inherited from class org.osgi.service.url.AbstractURLStreamHandlerService

realHandler

Constructor Summary

Constructors

Constructor and Description
InMemoryStreamHandler()

Method Summary

Modifier and Type	Method and Description
URLConnection	openConnection(URL url) Open connection to the inmemory resource.
void	parseURL(org.osgi.service.url.URLStreamHandlerSetter rh, URL u, String spec, int start, int limit) Parses the URL string - spec parameter - extracts the original protocol and path, e.g file://path and puts it originalUrls map to be used later when URLConnection is requested in openConnection()

Methods inherited from class org.osgi.service.url.AbstractURLStreamHandlerService

equals, getDefaultPort, getHostAddress, hashCode, hostsEqual, sameFile, setURL, setURL, toExternalForm

Methods inherited from class java.net.URLStreamHandler

openConnection, parseURL

Methods inherited from class java.lang.Object

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

Field Detail

INMEMORY_PROTOCOL_PREFIX

public static final String INMEMORY_PROTOCOL_PREFIX

See Also:

Constant Field Values

Constructor Detail

InMemoryStreamHandler

public InMemoryStreamHandler()

Method Detail

openConnection

public URLConnection openConnection(URL url)
                             throws IOException

Open connection to the inmemory resource. If the resource is not found in memory, it reads is read by opening URL() to it.

Specified by:

openConnection in interface org.osgi.service.url.URLStreamHandlerService

Specified by:

openConnection in class org.osgi.service.url.AbstractURLStreamHandlerService

Throws:

IOException

parseURL

public void parseURL(org.osgi.service.url.URLStreamHandlerSetter rh,
                     URL u,
                     String spec,
                     int start,
                     int limit)

Parses the URL string - spec parameter - extracts the original protocol and path, e.g file://path and puts it originalUrls map to be used later when URLConnection is requested in openConnection()

Specified by:

parseURL in interface org.osgi.service.url.URLStreamHandlerService

Overrides:

parseURL in class org.osgi.service.url.AbstractURLStreamHandlerService