83 lines
1.4 KiB
Plaintext
83 lines
1.4 KiB
Plaintext
note
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description: "A JSON converter for BOOK_COLLECTION"
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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_COLLECTION_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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do
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create ucs.make_from_string ("")
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create object.make (ucs)
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end
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feature -- Access
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object: BOOK_COLLECTION
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feature -- Conversion
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from_json (j: like to_json): detachable like object
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local
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l_books: LINKED_LIST [BOOK]
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do
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if
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attached {STRING_32} json.object (j.item (name_key), Void) as l_name and
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attached {JSON_ARRAY} j.item (books_key) as l_json_array
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then
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create Result.make (l_name)
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create l_books.make
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across
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l_json_array as it
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until
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Result = Void
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loop
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if attached {BOOK} json.object (it.item, "BOOK") as l_book then
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l_books.extend (l_book)
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else
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Result := Void
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-- Failed
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end
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end
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if Result /= Void then
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Result.add_books (l_books)
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end
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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.name), name_key)
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Result.put (json.value (o.books), books_key)
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end
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feature {NONE} -- Implementation
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name_key: JSON_STRING
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-- Collection's name label.
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once
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create Result.make_json ("name")
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end
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books_key: JSON_STRING
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-- Book list label.
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once
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create Result.make_json ("books")
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end
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end -- class JSON_BOOK_COLLECTION_CONVERTER
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