75 lines
1.3 KiB
Plaintext
75 lines
1.3 KiB
Plaintext
note
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description: "A JSON converter for BOOK"
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author: "Paul Cohen"
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date: "$Date$"
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revision: "$Revision$"
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class
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JSON_BOOK_CONVERTER
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inherit
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JSON_CONVERTER
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create
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make
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feature {NONE} -- Initialization
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make
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local
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ucs: STRING_32
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a: AUTHOR
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do
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create ucs.make_from_string ("")
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create a.make (ucs)
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create object.make (ucs, a, ucs)
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end
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feature -- Access
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object: BOOK
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feature -- Conversion
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from_json (j: like to_json): detachable like object
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do
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if
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attached {STRING_32} json.object (j.item (title_key), Void) as l_title and
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attached {STRING_32} json.object (j.item (isbn_key), Void) as l_isbn and
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attached {AUTHOR} json.object (j.item (author_key), "AUTHOR") as l_author
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then
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create Result.make (l_title, l_author, l_isbn)
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end
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end
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to_json (o: like object): JSON_OBJECT
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do
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create Result.make
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Result.put (json.value (o.title), title_key)
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Result.put (json.value (o.isbn), isbn_key)
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Result.put (json.value (o.author), author_key)
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end
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feature {NONE} -- Implementation
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title_key: JSON_STRING
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-- Book's title label.
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once
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create Result.make_json ("title")
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end
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isbn_key: JSON_STRING
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-- Book ISBN label.
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once
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create Result.make_json ("isbn")
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end
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author_key: JSON_STRING
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-- Author label.
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once
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create Result.make_json ("author")
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end
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end -- class JSON_BOOK_CONVERTER
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