Changes between Initial Version and Version 1 of LocalHrefProtocol

Timestamp:

Oct 8, 2012, 12:40:57 AM (12 years ago)

Author:

jeichar

Comment:

--

LocalHrefProtocol

@@ +1 @@
+= Local:// protocol for Xlinks =
+
+|| '''Date''' || 2012/09/14 ||
+|| '''Contact(s)''' || [http://wiki.osgeo.org/wiki/User:Jeichar Jesse Eichar] ||
+|| '''Last edited''' || ||
+|| '''Status''' || Proposed ||
+|| '''Assigned to release''' || 2.9.x ||
+|| '''Resources''' || Jesse personal time ||
+|| '''Code''' || https://github.com/jesseeichar/core-geonetwork/commits/feature/local-protocol-xlinks ||
+
+== Overview ==
+
+For performance and portability this proposal adds a local:// protocol for xlinks.  When the Xlink processor encounters this protocol, the processor will directly invoke dispatch on the dispatch manager, instead of making a more expensive http request.
+
+=== Proposal Type ===
+ * '''Type''': XLink
+ * '''App''': Jeeves
+ * '''Module''': 
+
+=== Links ===
+ 
+ * '''Email discussions''':
+ * '''IRC discussions''':
+ * '''Related work''':
+
+ 
+=== Voting History ===
+
+ * None as yet
+
+----
+
+
+== Proposal == 
+
+For performance and portability this proposal adds a local:// protocol for xlinks.  When the Xlink processor encounters this protocol, the processor will directly invoke dispatch on the dispatch manager, instead of making a more expensive http request.  
+
+The benefit of using local:// protocol are three fold.
+
+ 1. Performance.  The request is made without having to write to and from a socket.  
+ 1. No new threads need to be spawned to resolve local:// xlinks
+ 1. Portability.  The server url is not part of the href so the server name, port and even the servlet name can be changed without having to update the xlink hrefs.
+
+In the normal case the behaviour is the same.  This just adds the option of using local:// hrefs.  
+
+The difference between local/relative hrefs and local:// hrefs are:  local/relative hrefs are local within a metadata document.  local:// get XML from any service like:  local://keyword.get?thesaurus=123&id=123
+
+
+=== Backwards Compatibility Issues ===
+
+Minor Changes to the Processor and ServiceContext API
+
+== Risks ==
+
+
+== Participants ==
+ * As above