Fixed message for exception_failed_to_convert_to_json
Fixed indentation
This commit is contained in:
Jocelyn Fiat
@@ -1,268 +1,268 @@
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note
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description: "Core factory class for creating JSON objects and corresponding Eiffel objects."
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author: "Paul Cohen"
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date: "$Date$"
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revision: "$Revision$"
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file: "$HeadURL: $"
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description: "Core factory class for creating JSON objects and corresponding Eiffel objects."
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author: "Paul Cohen"
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date: "$Date$"
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revision: "$Revision$"
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file: "$HeadURL: $"
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class EJSON
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inherit
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EXCEPTIONS
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EXCEPTIONS
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feature -- Access
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value (an_object: detachable ANY): detachable JSON_VALUE
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-- JSON value from Eiffel object. Raises an "eJSON exception" if
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-- unable to convert value.
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local
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i: INTEGER
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ja: JSON_ARRAY
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do
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-- Try to convert from basic Eiffel types. Note that we check with
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-- `conforms_to' since the client may have subclassed the base class
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-- that these basic types are derived from.
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if an_object = Void then
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create {JSON_NULL} Result
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elseif attached {BOOLEAN} an_object as b then
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create {JSON_BOOLEAN} Result.make_boolean (b)
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elseif attached {INTEGER_8} an_object as i8 then
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create {JSON_NUMBER} Result.make_integer (i8)
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elseif attached {INTEGER_16} an_object as i16 then
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create {JSON_NUMBER} Result.make_integer (i16)
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elseif attached {INTEGER_32} an_object as i32 then
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create {JSON_NUMBER} Result.make_integer (i32)
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elseif attached {INTEGER_64} an_object as i64 then
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create {JSON_NUMBER} Result.make_integer (i64)
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elseif attached {NATURAL_8} an_object as n8 then
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create {JSON_NUMBER} Result.make_natural (n8)
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elseif attached {NATURAL_16} an_object as n16 then
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create {JSON_NUMBER} Result.make_natural (n16)
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elseif attached {NATURAL_32} an_object as n32 then
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create {JSON_NUMBER} Result.make_natural (n32)
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elseif attached {NATURAL_64} an_object as n64 then
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create {JSON_NUMBER} Result.make_natural (n64)
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elseif attached {REAL_32} an_object as r32 then
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create {JSON_NUMBER} Result.make_real (r32)
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elseif attached {REAL_64} an_object as r64 then
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create {JSON_NUMBER} Result.make_real (r64)
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elseif attached {ARRAY [detachable ANY]} an_object as a then
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create ja.make_array
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from
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i := a.lower
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until
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i > a.upper
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loop
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if attached value (a @ i) as v then
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ja.add (v)
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value (an_object: detachable ANY): detachable JSON_VALUE
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-- JSON value from Eiffel object. Raises an "eJSON exception" if
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-- unable to convert value.
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local
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i: INTEGER
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ja: JSON_ARRAY
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do
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-- Try to convert from basic Eiffel types. Note that we check with
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-- `conforms_to' since the client may have subclassed the base class
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-- that these basic types are derived from.
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if an_object = Void then
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create {JSON_NULL} Result
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elseif attached {BOOLEAN} an_object as b then
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create {JSON_BOOLEAN} Result.make_boolean (b)
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elseif attached {INTEGER_8} an_object as i8 then
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create {JSON_NUMBER} Result.make_integer (i8)
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elseif attached {INTEGER_16} an_object as i16 then
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create {JSON_NUMBER} Result.make_integer (i16)
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elseif attached {INTEGER_32} an_object as i32 then
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create {JSON_NUMBER} Result.make_integer (i32)
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elseif attached {INTEGER_64} an_object as i64 then
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create {JSON_NUMBER} Result.make_integer (i64)
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elseif attached {NATURAL_8} an_object as n8 then
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create {JSON_NUMBER} Result.make_natural (n8)
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elseif attached {NATURAL_16} an_object as n16 then
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create {JSON_NUMBER} Result.make_natural (n16)
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elseif attached {NATURAL_32} an_object as n32 then
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create {JSON_NUMBER} Result.make_natural (n32)
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elseif attached {NATURAL_64} an_object as n64 then
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create {JSON_NUMBER} Result.make_natural (n64)
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elseif attached {REAL_32} an_object as r32 then
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create {JSON_NUMBER} Result.make_real (r32)
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elseif attached {REAL_64} an_object as r64 then
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create {JSON_NUMBER} Result.make_real (r64)
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elseif attached {ARRAY [detachable ANY]} an_object as a then
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create ja.make_array
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from
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i := a.lower
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until
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i > a.upper
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loop
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if attached value (a @ i) as v then
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ja.add (v)
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else
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check value_attached: False end
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end
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i := i + 1
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end
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Result := ja
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elseif attached {CHARACTER_8} an_object as c8 then
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create {JSON_STRING} Result.make_json (c8.out)
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elseif attached {CHARACTER_32} an_object as c32 then
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create {JSON_STRING} Result.make_json (c32.out)
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end
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i := i + 1
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end
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Result := ja
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elseif attached {CHARACTER_8} an_object as c8 then
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create {JSON_STRING} Result.make_json (c8.out)
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elseif attached {CHARACTER_32} an_object as c32 then
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create {JSON_STRING} Result.make_json (c32.out)
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elseif attached {STRING_8} an_object as s8 then
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create {JSON_STRING} Result.make_json (s8)
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elseif attached {STRING_32} an_object as s32 then
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create {JSON_STRING} Result.make_json_from_string_32 (s32)
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end
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elseif attached {STRING_8} an_object as s8 then
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create {JSON_STRING} Result.make_json (s8)
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elseif attached {STRING_32} an_object as s32 then
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create {JSON_STRING} Result.make_json_from_string_32 (s32)
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end
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if Result = Void then
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-- Now check the converters
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if an_object /= Void and then attached converter_for (an_object) as jc then
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Result := jc.to_json (an_object)
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else
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raise (exception_failed_to_convert_to_json (an_object))
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end
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end
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end
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if Result = Void then
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-- Now check the converters
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if an_object /= Void and then attached converter_for (an_object) as jc then
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Result := jc.to_json (an_object)
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else
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raise (exception_failed_to_convert_to_json (an_object))
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end
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end
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end
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object (a_value: detachable JSON_VALUE; base_class: detachable STRING): detachable ANY
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-- Eiffel object from JSON value. If `base_class' /= Void an eiffel
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-- object based on `base_class' will be returned. Raises an "eJSON
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-- exception" if unable to convert value.
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local
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i: INTEGER
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ll: LINKED_LIST [detachable ANY]
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t: HASH_TABLE [detachable ANY, STRING_GENERAL]
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keys: ARRAY [JSON_STRING]
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do
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object (a_value: detachable JSON_VALUE; base_class: detachable STRING): detachable ANY
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-- Eiffel object from JSON value. If `base_class' /= Void an eiffel
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-- object based on `base_class' will be returned. Raises an "eJSON
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-- exception" if unable to convert value.
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local
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i: INTEGER
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ll: LINKED_LIST [detachable ANY]
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t: HASH_TABLE [detachable ANY, STRING_GENERAL]
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keys: ARRAY [JSON_STRING]
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do
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if a_value = Void then
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Result := Void
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else
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if base_class = Void then
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if a_value = Void then
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Result := Void
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elseif attached {JSON_NULL} a_value then
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Result := Void
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elseif attached {JSON_BOOLEAN} a_value as jb then
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Result := jb.item
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elseif attached {JSON_NUMBER} a_value as jn then
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if jn.item.is_integer_8 then
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Result := jn.item.to_integer_8
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elseif jn.item.is_integer_16 then
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Result := jn.item.to_integer_16
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elseif jn.item.is_integer_32 then
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Result := jn.item.to_integer_32
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elseif jn.item.is_integer_64 then
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Result := jn.item.to_integer_64
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elseif jn.item.is_natural_64 then
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Result := jn.item.to_natural_64
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elseif jn.item.is_double then
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Result := jn.item.to_double
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end
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elseif attached {JSON_STRING} a_value as js then
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create {STRING_32} Result.make_from_string (js.unescaped_string_32)
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elseif attached {JSON_ARRAY} a_value as ja then
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from
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create ll.make
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i := 1
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until
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i > ja.count
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loop
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ll.extend (object (ja [i], Void))
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i := i + 1
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end
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Result := ll
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elseif attached {JSON_OBJECT} a_value as jo then
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keys := jo.current_keys
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create t.make (keys.count)
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from
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i := keys.lower
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until
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i > keys.upper
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loop
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if attached {STRING_GENERAL} object (keys [i], Void) as s then
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t.put (object (jo.item (keys [i]), Void), s)
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end
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i := i + 1
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end
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Result := t
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end
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else
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if converters.has_key (base_class) and then attached converters.found_item as jc then
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Result := jc.from_json (a_value)
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else
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raise (exception_failed_to_convert_to_eiffel (a_value, base_class))
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end
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end
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if base_class = Void then
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if a_value = Void then
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Result := Void
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elseif attached {JSON_NULL} a_value then
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Result := Void
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elseif attached {JSON_BOOLEAN} a_value as jb then
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Result := jb.item
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elseif attached {JSON_NUMBER} a_value as jn then
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if jn.item.is_integer_8 then
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Result := jn.item.to_integer_8
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elseif jn.item.is_integer_16 then
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Result := jn.item.to_integer_16
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elseif jn.item.is_integer_32 then
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Result := jn.item.to_integer_32
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elseif jn.item.is_integer_64 then
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Result := jn.item.to_integer_64
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elseif jn.item.is_natural_64 then
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Result := jn.item.to_natural_64
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elseif jn.item.is_double then
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Result := jn.item.to_double
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end
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elseif attached {JSON_STRING} a_value as js then
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create {STRING_32} Result.make_from_string (js.unescaped_string_32)
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elseif attached {JSON_ARRAY} a_value as ja then
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from
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create ll.make
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i := 1
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until
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i > ja.count
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loop
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ll.extend (object (ja [i], Void))
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i := i + 1
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end
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Result := ll
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elseif attached {JSON_OBJECT} a_value as jo then
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keys := jo.current_keys
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create t.make (keys.count)
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from
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i := keys.lower
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until
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i > keys.upper
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loop
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if attached {STRING_GENERAL} object (keys [i], Void) as s then
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t.put (object (jo.item (keys [i]), Void), s)
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end
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i := i + 1
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end
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Result := t
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end
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else
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if converters.has_key (base_class) and then attached converters.found_item as jc then
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Result := jc.from_json (a_value)
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else
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raise (exception_failed_to_convert_to_eiffel (a_value, base_class))
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end
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end
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end
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end
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end
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object_from_json (json: STRING; base_class: detachable STRING): detachable ANY
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-- Eiffel object from JSON representation. If `base_class' /= Void an
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-- Eiffel object based on `base_class' will be returned. Raises an
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-- "eJSON exception" if unable to convert value.
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require
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json_not_void: json /= Void
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local
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jv: detachable JSON_VALUE
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do
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json_parser.set_representation (json)
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jv := json_parser.parse
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if jv /= Void then
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Result := object (jv, base_class)
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end
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end
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object_from_json (json: STRING; base_class: detachable STRING): detachable ANY
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-- Eiffel object from JSON representation. If `base_class' /= Void an
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-- Eiffel object based on `base_class' will be returned. Raises an
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-- "eJSON exception" if unable to convert value.
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require
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json_not_void: json /= Void
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local
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jv: detachable JSON_VALUE
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do
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json_parser.set_representation (json)
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jv := json_parser.parse
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if jv /= Void then
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Result := object (jv, base_class)
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end
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end
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converter_for (an_object: ANY): detachable JSON_CONVERTER
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-- Converter for objects. Returns Void if none found.
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require
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an_object_not_void: an_object /= Void
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do
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if converters.has_key (an_object.generator) then
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Result := converters.found_item
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end
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end
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converter_for (an_object: ANY): detachable JSON_CONVERTER
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-- Converter for objects. Returns Void if none found.
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require
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an_object_not_void: an_object /= Void
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do
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if converters.has_key (an_object.generator) then
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Result := converters.found_item
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end
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end
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json_reference (s: STRING): JSON_OBJECT
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-- A JSON (Dojo style) reference object using `s' as the
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-- reference value. The caller is responsable for ensuring
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-- the validity of `s' as a json reference.
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require
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s_not_void: s /= Void
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local
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js_key, js_value: JSON_STRING
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do
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create Result.make
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create js_key.make_json ("$ref")
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create js_value.make_json (s)
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Result.put (js_value, js_key)
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end
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json_reference (s: STRING): JSON_OBJECT
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-- A JSON (Dojo style) reference object using `s' as the
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-- reference value. The caller is responsable for ensuring
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-- the validity of `s' as a json reference.
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require
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s_not_void: s /= Void
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local
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js_key, js_value: JSON_STRING
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do
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create Result.make
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create js_key.make_json ("$ref")
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create js_value.make_json (s)
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Result.put (js_value, js_key)
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end
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json_references (l: LIST [STRING]): JSON_ARRAY
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-- A JSON array of JSON (Dojo style) reference objects using the
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-- strings in `l' as reference values. The caller is responsable
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-- for ensuring the validity of all strings in `l' as json
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-- references.
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require
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l_not_void: l /= Void
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local
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c: ITERATION_CURSOR [STRING]
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do
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create Result.make_array
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from
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c := l.new_cursor
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until
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c.after
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loop
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Result.add (json_reference (c.item))
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c.forth
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end
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end
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json_references (l: LIST [STRING]): JSON_ARRAY
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-- A JSON array of JSON (Dojo style) reference objects using the
|
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-- strings in `l' as reference values. The caller is responsable
|
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-- for ensuring the validity of all strings in `l' as json
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-- references.
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require
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l_not_void: l /= Void
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local
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c: ITERATION_CURSOR [STRING]
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do
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create Result.make_array
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from
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c := l.new_cursor
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until
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c.after
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loop
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Result.add (json_reference (c.item))
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c.forth
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end
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end
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feature -- Change
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add_converter (jc: JSON_CONVERTER)
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-- Add the converter `jc'.
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require
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jc_not_void: jc /= Void
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do
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converters.force (jc, jc.object.generator)
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ensure
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has_converter: converter_for (jc.object) /= Void
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end
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add_converter (jc: JSON_CONVERTER)
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-- Add the converter `jc'.
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require
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jc_not_void: jc /= Void
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do
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converters.force (jc, jc.object.generator)
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ensure
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has_converter: converter_for (jc.object) /= Void
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end
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feature {NONE} -- Implementation
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converters: HASH_TABLE [JSON_CONVERTER, STRING]
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-- Converters hashed by generator (base class)
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once
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create Result.make (10)
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end
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converters: HASH_TABLE [JSON_CONVERTER, STRING]
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-- Converters hashed by generator (base class)
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once
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create Result.make (10)
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end
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feature {NONE} -- Implementation (Exceptions)
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||||
|
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exception_prefix: STRING = "eJSON exception: "
|
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exception_prefix: STRING = "eJSON exception: "
|
||||
|
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exception_failed_to_convert_to_eiffel (a_value: JSON_VALUE; base_class: detachable STRING): STRING
|
||||
-- Exception message for failing to convert a JSON_VALUE to an instance of `a'.
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do
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Result := exception_prefix + "Failed to convert JSON_VALUE to an Eiffel object: " + a_value.generator
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||||
if base_class /= Void then
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Result.append (" -> " + base_class)
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||||
end
|
||||
end
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exception_failed_to_convert_to_eiffel (a_value: JSON_VALUE; base_class: detachable STRING): STRING
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-- Exception message for failing to convert a JSON_VALUE to an instance of `a'.
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||||
do
|
||||
Result := exception_prefix + "Failed to convert JSON_VALUE to an Eiffel object: " + a_value.generator
|
||||
if base_class /= Void then
|
||||
Result.append (" -> {" + base_class + "}")
|
||||
end
|
||||
end
|
||||
|
||||
exception_failed_to_convert_to_json (an_object: detachable ANY): STRING
|
||||
-- Exception message for failing to convert `a' to a JSON_VALUE.
|
||||
do
|
||||
exception_failed_to_convert_to_json (an_object: detachable ANY): STRING
|
||||
-- Exception message for failing to convert `a' to a JSON_VALUE.
|
||||
do
|
||||
Result := exception_prefix + "Failed to convert Eiffel object to a JSON_VALUE"
|
||||
if an_object /= Void then
|
||||
Result := ": " + an_object.generator
|
||||
Result.append (" : {" + an_object.generator + "}")
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
feature {NONE} -- Implementation (JSON parser)
|
||||
|
||||
json_parser: JSON_PARSER
|
||||
once
|
||||
create Result.make_parser ("")
|
||||
end
|
||||
json_parser: JSON_PARSER
|
||||
once
|
||||
create Result.make_parser ("")
|
||||
end
|
||||
|
||||
end -- class EJSON
|
||||
|
||||
Reference in New Issue
Block a user