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New ROUTER design, much simpler, less generic, easier to extend, and now one can mix uri map, uri_template map and so on.

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Update the "tutorial" example.
This commit is contained in:
Jocelyn Fiat
2012-09-10 20:45:19 +02:00
parent 0f59535696
commit ace897ea2b
31 changed files with 668 additions and 1359 deletions
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113
library/server/wsf/router/wsf_routing_handler.e
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note
description: "[
WSF_ROUTING_HANDLER is mainly to group a set of handler having the same base
such as /users for
/users/by/id/{id}
/users/by/name/name}
It can be used to optimize the router, where the router checks only the base path before checking each entries
Then for
/a/a1
/a/a2
/a/a3
/a/a4
/b/b1
/b/b2
/b/b3
2 routing handlers could be used "/a" and "/b"
then to find the /b/b2 match, the router has to do only
/a /b /b/b1 and /b/b2 i.e: 4 checks
instead of /a/a1 /a/a2 /a/a3 /a/a4 /b/b1 /b/b2: i.e: 6 checks
On router with deep arborescence this could be significant
]"
date: "$Date$"
revision: "$Revision$"
deferred class
WSF_ROUTING_HANDLER [H -> WSF_HANDLER [C], C -> WSF_HANDLER_CONTEXT]
inherit
WSF_HANDLER [C]
feature -- Access
count: INTEGER
-- Count of maps handled by current
do
Result := router.count
end
base_url: detachable READABLE_STRING_8
do
Result := router.base_url
end
feature -- Element change
set_base_url (a_base_url: like base_url)
-- Set `base_url' to `a_base_url'
-- make sure no map is already added (i.e: count = 0)
require
no_handler_set: count = 0
do
router.set_base_url (a_base_url)
end
feature -- Execution
execute (ctx: C; req: WSF_REQUEST; res: WSF_RESPONSE)
-- Execute request handler
local
r: detachable WSF_ROUTE [H, C]
do
r := router.route (req)
if r = Void then
res.put_header ({HTTP_STATUS_CODE}.not_found, <<[{HTTP_HEADER_NAMES}.header_content_length, "0"]>>)
else
router.execute_route (r, req, res)
end
end
feature {NONE} -- Routing
router: WSF_ROUTER [H, C]
deferred
end
feature -- Mapping
map (a_resource: READABLE_STRING_8; h: H)
-- Map handler `h' with `a_resource'
do
router.map (a_resource, h)
end
map_with_request_methods (a_resource: READABLE_STRING_8; h: H;
rqst_methods: detachable WSF_ROUTER_METHODS)
-- Map handler `h' with `a_resource' and `rqst_methods'
do
router.map_with_request_methods (a_resource, h, rqst_methods)
end
map_agent (a_resource: READABLE_STRING_8; a_action: PROCEDURE [ANY, TUPLE [ctx: C; req: WSF_REQUEST; res: WSF_RESPONSE]])
do
router.map_agent (a_resource, a_action)
end
map_agent_with_request_methods (a_resource: READABLE_STRING_8; a_action: PROCEDURE [ANY, TUPLE [ctx: C; req: WSF_REQUEST; res: WSF_RESPONSE]];
rqst_methods: detachable WSF_ROUTER_METHODS)
do
router.map_agent_with_request_methods (a_resource, a_action, rqst_methods)
end
note
copyright: "2011-2012, Jocelyn Fiat, Javier Velilla, Eiffel Software and others"
license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
source: "[
Eiffel Software
5949 Hollister Ave., Goleta, CA 93117 USA
Telephone 805-685-1006, Fax 805-685-6869
Website http://www.eiffel.com
Customer support http://support.eiffel.com
]"
end