>>> import orderlyjson, json
>>> orderlydoc = open('test.orderly').read()
>>> print orderlydoc
object {
string name;
string description?;
string homepage /^http:/;
integer {1500,3000} invented;
}*;
>>> print json.dumps(
... orderlyjson.parse(orderlydoc), indent=4)
{
"additionalProperties": true,
"type": "object",
"properties": {
"invented": {
"minimum": 1500,
"type": "integer",
"maximum": 3000
},
"homepage": {
"pattern": "^http:",
"type": "string"
},
"name": {
"type": "string"
},
"description": {
"optional": true,
"type": "string"
}
}
}
>>> jsondoc = open('test.json').read()
>>> print jsondoc
{
"name": "orderly",
"description": "A schema language for JSON",
"homepage": "http://orderly-json.org",
"invented": 2009
}
>>> orderlyjson.validate(json.loads(jsondoc), orderlydoc)
>>> badjsondoc = """
... {
... "name": "orderly",
... "description": "A schema language for JSON",
... "homepage": "http://orderly-json.org",
... "invented": 4009
... }
... """
>>> orderlyjson.validate(json.loads(badjsondoc), orderlydoc)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "orderlyjson/__init__.py", line 13, in validate
jsonschema.validate(json_object, orderly_object)
File "orderlyjson/jsonschema/__init__.py", line 101, in validate
return v.validate(data,schema)
File "orderlyjson/jsonschema/validator.py", line 410, in validate
self._validate(data, schema)
File "orderlyjson/jsonschema/validator.py", line 413, in _validate
self.__validate("_data", {"_data": data}, schema)
File "orderlyjson/jsonschema/validator.py", line 439, in __validate
validator(data, fieldname, schema, new_schema.get(schemaprop))
File "orderlyjson/jsonschema/validator.py", line 128, in validate_properties
self.__validate(eachProp, value, properties.get(eachProp))
File "orderlyjson/jsonschema/validator.py", line 439, in __validate
validator(data, fieldname, schema, new_schema.get(schemaprop))
File "orderlyjson/jsonschema/validator.py", line 230, in validate_maximum
raise ValueError("Value %r for field '%s' is greater than maximum value: %f" % (value, fieldname, maximum))
ValueError: Value 4009 for field 'invented' is greater than maximum value: 3000.000000
As a starting point, there's a short Python script for compiling Orderly to JSONschema or validating a JSON file against an Orderly schema.
Use:
$ orderly -o schema.json schema.orderly
To compile schema.orderly to schema.json
(without the -o option JSONschema is printed to stdout).
$ orderly -v data.json schema.orderly
To validate data.json against the schema.orderly. If validation succeeds,
nothing is printed and script returns with 0. If validation fails, the error
message is printed to stderr and script exits with error code 1.
Thanks to Lloyd Hilaiel for the documentation and language specification at orderly-json.org.
This code is licensed under the MIT license. It currently includes the jsonschema library found here;