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refactored to allow etags to work properly when multiple representations are available

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This commit is contained in:
Colin Adams
2013-08-12 09:27:00 +01:00
parent f82456f352
commit 2ed362f5d3
7 changed files with 172 additions and 105 deletions
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12
examples/restbucksCRUD/src/resource/order_handler.e
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@@ -152,7 +152,7 @@ feature -- Access
end
end
etag (req: WSF_REQUEST; a_media_type, a_language_type, a_character_type, a_compression_type: READABLE_STRING_8): detachable READABLE_STRING_8
etag (req: WSF_REQUEST): detachable READABLE_STRING_8
-- Optional Etag for `req' in the requested variant
local
l_etag_utils: ETAG_UTILS
@@ -228,14 +228,14 @@ feature -- Execution
feature -- GET/HEAD content
ensure_content_available (req: WSF_REQUEST;
a_media_type, a_language_type, a_character_type, a_compression_type: READABLE_STRING_8)
ensure_content_available (req: WSF_REQUEST)
-- Commence generation of response text (entity-body).
-- If not chunked, then this will create the entire entity-body so as to be available
-- for a subsequent call to `content'.
-- If chunked, only the first chunk will be made available to `next_chunk'. If chunk extensions
-- are used, then this will also generate the chunk extension for the first chunk.
-- We save the text in `req.execution_variable ("GENERATED_CONTENT")'
-- We ignore the results of content negotiation, as there is only one possible combination.
do
check attached {ORDER} req.execution_variable ("ORDER") as l_order then
-- precondition get_or_head and postcondition order_saved_only_for_get_head of `check_resource_exists' and
@@ -250,7 +250,7 @@ feature -- GET/HEAD content
attached {READABLE_STRING_8} req.execution_variable ("GENERATED_CONTENT")
end
content (req: WSF_REQUEST; a_media_type, a_language_type, a_character_type, a_compression_type: READABLE_STRING_8): READABLE_STRING_8
content (req: WSF_REQUEST): READABLE_STRING_8
-- Non-chunked entity body in response to `req';
-- We only call this for GET/HEAD in this example.
do
@@ -260,7 +260,7 @@ feature -- GET/HEAD content
end
end
next_chunk (req: WSF_REQUEST; a_media_type, a_language_type, a_character_type, a_compression_type: READABLE_STRING_8): TUPLE [a_check: READABLE_STRING_8; a_extension: detachable READABLE_STRING_8]
next_chunk (req: WSF_REQUEST): TUPLE [a_chunk: READABLE_STRING_8; a_extension: detachable READABLE_STRING_8]
-- Next chunk of entity body in response to `req';
-- The second field of the result is an optional chunk extension.
do
@@ -269,7 +269,7 @@ feature -- GET/HEAD content
Result := ["", Void]
end
generate_next_chunk (req: WSF_REQUEST; a_media_type, a_language_type, a_character_type, a_compression_type: READABLE_STRING_8)
generate_next_chunk (req: WSF_REQUEST)
-- Prepare next chunk (including optional chunk extension) of entity body in response to `req'.
-- This is not called for the first chunk.
do