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Diffstat (limited to 'sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources')
15 files changed, 1895 insertions, 0 deletions
diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/META-INF/services/org.apache.tuscany.sca.provider.ImplementationProviderFactory b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/META-INF/services/org.apache.tuscany.sca.provider.ImplementationProviderFactory new file mode 100644 index 0000000000..3c1e6c4406 --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/META-INF/services/org.apache.tuscany.sca.provider.ImplementationProviderFactory @@ -0,0 +1,20 @@ +# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements. See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership. The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+# Implementation provider for Python components
+org.apache.tuscany.sca.implementation.python.provider.PythonImplementationProviderFactory;model=org.apache.tuscany.sca.implementation.python.PythonImplementation
+
diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/atomutil.py b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/atomutil.py new file mode 100644 index 0000000000..6c0a7c9a81 --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/atomutil.py @@ -0,0 +1,120 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. + +# ATOM data conversion functions + +from util import * +from elemutil import * +from xmlutil import * + +# Convert a list of elements to a list of values representing an ATOM entry +def entryElementsToValues(e): + lt = filter(selector((element, "'title")), e) + t = "" if isNil(lt) else elementValue(car(lt)) + li = filter(selector((element, "'id")), e) + i = "" if isNil(li) else elementValue(car(li)) + lc = filter(selector((element, "'content")), e) + return (t, i, elementValue(car(lc))) + +# Convert a list of elements to a list of values representing ATOM entries +def entriesElementsToValues(e): + if isNil(e): + return e + return cons(entryElementsToValues(car(e)), entriesElementsToValues(cdr(e))) + +# Convert a list of strings to a list of values representing an ATOM entry +def readATOMEntry(l): + e = readXML(l) + if isNil(e): + return () + return entryElementsToValues(car(e)) + +# Convert a list of values representy an ATOM entry to a value +def entryValue(e): + v = elementsToValues((caddr(e),)) + return cons(car(e), (cadr(e), cdr(car(v)))) + +# Return true if a list of strings represents an ATOM feed +def isATOMFeed(l): + if isNil(l): + return False + if car(l)[0:5] != "<?xml": + return False + return contains(car(l), "<feed") + +# Convert a list of strings to a list of values representing an ATOM feed +def readATOMFeed(l): + f = readXML(l) + if isNil(f): + return () + t = filter(selector((element, "'title")), car(f)) + i = filter(selector((element, "'id")), car(f)) + e = filter(selector((element, "'entry")), car(f)) + if isNil(e): + return (elementValue(car(t)), elementValue(car(i))) + return cons(elementValue(car(t)), cons(elementValue(car(i)), entriesElementsToValues(e))) + +# Convert an ATOM feed containing elements to an ATOM feed containing values +def feedValuesLoop(e): + if (isNil(e)): + return e + return cons(entryValue(car(e)), feedValuesLoop(cdr(e))) + +def feedValues(e): + return cons(car(e), cons(cadr(e), feedValuesLoop(cddr(e)))) + +# Convert a list of values representy an ATOM entry to a list of elements +def entryElement(l): + return (element, "'entry", (attribute, "'xmlns", "http://www.w3.org/2005/Atom"), + (element, "'title", (attribute, "'type", "text"), car(l)), + (element, "'id", cadr(l)), + (element, "'content", (attribute, "'type", ("application/xml" if isList(caddr(l)) else "text")), caddr(l)), + (element, "'link", (attribute, "'href", cadr(l)))) + +# Convert a list of values representing ATOM entries to a list of elements +def entriesElements(l): + if isNil(l): + return l + return cons(entryElement(car(l)), entriesElements(cdr(l))) + +# Convert a list of values representing an ATOM entry to an ATOM entry +def writeATOMEntry(l): + return writeXML((entryElement(l),), True) + +# Convert a list of values representing an ATOM feed to an ATOM feed +def writeATOMFeed(l): + f = (element, "'feed", (attribute, "'xmlns", "http://www.w3.org/2005/Atom"), + (element, "'title", (attribute, "'type", "text"), car(l)), + (element, "'id", cadr(l))) + if isNil(cddr(l)): + return writeXML((f,), True) + fe = append(f, entriesElements(cddr(l))) + return writeXML((fe,), True) + +# Convert an ATOM entry containing a value to an ATOM entry containing an item element +def entryValuesToElements(v): + return cons(car(v), cons(cadr(v), valuesToElements((cons("'item", caddr(v)),)))) + +# Convert an ATOM feed containing values to an ATOM feed containing elements +def feedValuesToElementsLoop(v): + if isNil(v): + return v + return cons(entryValuesToElements(car(v)), feedValuesToElementsLoop(cdr(v))) + +def feedValuesToElements(v): + return cons(car(v), cons(cadr(v), feedValuesToElementsLoop(cddr(v)))) + diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/__init__.py b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/__init__.py new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/__init__.py diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/__init__.py b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/__init__.py new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/__init__.py diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/simplejson/__init__.py b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/simplejson/__init__.py new file mode 100644 index 0000000000..15b7173976 --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/simplejson/__init__.py @@ -0,0 +1,252 @@ +r""" +A simple, fast, extensible JSON encoder and decoder + +JSON (JavaScript Object Notation) <http://json.org> is a subset of +JavaScript syntax (ECMA-262 3rd edition) used as a lightweight data +interchange format. + +simplejson exposes an API familiar to uses of the standard library +marshal and pickle modules. + +Encoding basic Python object hierarchies:: + + >>> import simplejson + >>> simplejson.dumps(['foo', {'bar': ('baz', None, 1.0, 2)}]) + '["foo", {"bar": ["baz", null, 1.0, 2]}]' + >>> print simplejson.dumps("\"foo\bar") + "\"foo\bar" + >>> print simplejson.dumps(u'\u1234') + "\u1234" + >>> print simplejson.dumps('\\') + "\\" + >>> print simplejson.dumps({"c": 0, "b": 0, "a": 0}, sort_keys=True) + {"a": 0, "b": 0, "c": 0} + >>> from StringIO import StringIO + >>> io = StringIO() + >>> simplejson.dump(['streaming API'], io) + >>> io.getvalue() + '["streaming API"]' + +Compact encoding:: + + >>> import simplejson + >>> simplejson.dumps([1,2,3,{'4': 5, '6': 7}], separators=(',',':')) + '[1,2,3,{"4":5,"6":7}]' + +Pretty printing:: + + >>> import simplejson + >>> print simplejson.dumps({'4': 5, '6': 7}, sort_keys=True, indent=4) + { + "4": 5, + "6": 7 + } + +Decoding JSON:: + + >>> import simplejson + >>> simplejson.loads('["foo", {"bar":["baz", null, 1.0, 2]}]') + [u'foo', {u'bar': [u'baz', None, 1.0, 2]}] + >>> simplejson.loads('"\\"foo\\bar"') + u'"foo\x08ar' + >>> from StringIO import StringIO + >>> io = StringIO('["streaming API"]') + >>> simplejson.load(io) + [u'streaming API'] + +Specializing JSON object decoding:: + + >>> import simplejson + >>> def as_complex(dct): + ... if '__complex__' in dct: + ... return complex(dct['real'], dct['imag']) + ... return dct + ... + >>> simplejson.loads('{"__complex__": true, "real": 1, "imag": 2}', + ... object_hook=as_complex) + (1+2j) + +Extending JSONEncoder:: + + >>> import simplejson + >>> class ComplexEncoder(simplejson.JSONEncoder): + ... def default(self, obj): + ... if isinstance(obj, complex): + ... return [obj.real, obj.imag] + ... return simplejson.JSONEncoder.default(self, obj) + ... + >>> dumps(2 + 1j, cls=ComplexEncoder) + '[2.0, 1.0]' + >>> ComplexEncoder().encode(2 + 1j) + '[2.0, 1.0]' + >>> list(ComplexEncoder().iterencode(2 + 1j)) + ['[', '2.0', ', ', '1.0', ']'] + + +Note that the JSON produced by this module's default settings +is a subset of YAML, so it may be used as a serializer for that as well. +""" +__version__ = '1.5' +__all__ = [ + 'dump', 'dumps', 'load', 'loads', + 'JSONDecoder', 'JSONEncoder', +] + +from django.utils.simplejson.decoder import JSONDecoder +from django.utils.simplejson.encoder import JSONEncoder + +def dump(obj, fp, skipkeys=False, ensure_ascii=True, check_circular=True, + allow_nan=True, cls=None, indent=None, **kw): + """ + Serialize ``obj`` as a JSON formatted stream to ``fp`` (a + ``.write()``-supporting file-like object). + + If ``skipkeys`` is ``True`` then ``dict`` keys that are not basic types + (``str``, ``unicode``, ``int``, ``long``, ``float``, ``bool``, ``None``) + will be skipped instead of raising a ``TypeError``. + + If ``ensure_ascii`` is ``False``, then the some chunks written to ``fp`` + may be ``unicode`` instances, subject to normal Python ``str`` to + ``unicode`` coercion rules. Unless ``fp.write()`` explicitly + understands ``unicode`` (as in ``codecs.getwriter()``) this is likely + to cause an error. + + If ``check_circular`` is ``False``, then the circular reference check + for container types will be skipped and a circular reference will + result in an ``OverflowError`` (or worse). + + If ``allow_nan`` is ``False``, then it will be a ``ValueError`` to + serialize out of range ``float`` values (``nan``, ``inf``, ``-inf``) + in strict compliance of the JSON specification, instead of using the + JavaScript equivalents (``NaN``, ``Infinity``, ``-Infinity``). + + If ``indent`` is a non-negative integer, then JSON array elements and object + members will be pretty-printed with that indent level. An indent level + of 0 will only insert newlines. ``None`` is the most compact representation. + + To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the + ``.default()`` method to serialize additional types), specify it with + the ``cls`` kwarg. + """ + if cls is None: + cls = JSONEncoder + iterable = cls(skipkeys=skipkeys, ensure_ascii=ensure_ascii, + check_circular=check_circular, allow_nan=allow_nan, indent=indent, + **kw).iterencode(obj) + # could accelerate with writelines in some versions of Python, at + # a debuggability cost + for chunk in iterable: + fp.write(chunk) + +def dumps(obj, skipkeys=False, ensure_ascii=True, check_circular=True, + allow_nan=True, cls=None, indent=None, separators=None, **kw): + """ + Serialize ``obj`` to a JSON formatted ``str``. + + If ``skipkeys`` is ``True`` then ``dict`` keys that are not basic types + (``str``, ``unicode``, ``int``, ``long``, ``float``, ``bool``, ``None``) + will be skipped instead of raising a ``TypeError``. + + If ``ensure_ascii`` is ``False``, then the return value will be a + ``unicode`` instance subject to normal Python ``str`` to ``unicode`` + coercion rules instead of being escaped to an ASCII ``str``. + + If ``check_circular`` is ``False``, then the circular reference check + for container types will be skipped and a circular reference will + result in an ``OverflowError`` (or worse). + + If ``allow_nan`` is ``False``, then it will be a ``ValueError`` to + serialize out of range ``float`` values (``nan``, ``inf``, ``-inf``) in + strict compliance of the JSON specification, instead of using the + JavaScript equivalents (``NaN``, ``Infinity``, ``-Infinity``). + + If ``indent`` is a non-negative integer, then JSON array elements and + object members will be pretty-printed with that indent level. An indent + level of 0 will only insert newlines. ``None`` is the most compact + representation. + + If ``separators`` is an ``(item_separator, dict_separator)`` tuple + then it will be used instead of the default ``(', ', ': ')`` separators. + ``(',', ':')`` is the most compact JSON representation. + + To use a custom ``JSONEncoder`` subclass (e.g. one that overrides the + ``.default()`` method to serialize additional types), specify it with + the ``cls`` kwarg. + """ + if cls is None: + cls = JSONEncoder + return cls( + skipkeys=skipkeys, ensure_ascii=ensure_ascii, + check_circular=check_circular, allow_nan=allow_nan, indent=indent, + separators=separators, + **kw).encode(obj) + +def load(fp, encoding=None, cls=None, object_hook=None, **kw): + """ + Deserialize ``fp`` (a ``.read()``-supporting file-like object containing + a JSON document) to a Python object. + + If the contents of ``fp`` is encoded with an ASCII based encoding other + than utf-8 (e.g. latin-1), then an appropriate ``encoding`` name must + be specified. Encodings that are not ASCII based (such as UCS-2) are + not allowed, and should be wrapped with + ``codecs.getreader(fp)(encoding)``, or simply decoded to a ``unicode`` + object and passed to ``loads()`` + + ``object_hook`` is an optional function that will be called with the + result of any object literal decode (a ``dict``). The return value of + ``object_hook`` will be used instead of the ``dict``. This feature + can be used to implement custom decoders (e.g. JSON-RPC class hinting). + + To use a custom ``JSONDecoder`` subclass, specify it with the ``cls`` + kwarg. + """ + if cls is None: + cls = JSONDecoder + if object_hook is not None: + kw['object_hook'] = object_hook + return cls(encoding=encoding, **kw).decode(fp.read()) + +def loads(s, encoding=None, cls=None, object_hook=None, **kw): + """ + Deserialize ``s`` (a ``str`` or ``unicode`` instance containing a JSON + document) to a Python object. + + If ``s`` is a ``str`` instance and is encoded with an ASCII based encoding + other than utf-8 (e.g. latin-1) then an appropriate ``encoding`` name + must be specified. Encodings that are not ASCII based (such as UCS-2) + are not allowed and should be decoded to ``unicode`` first. + + ``object_hook`` is an optional function that will be called with the + result of any object literal decode (a ``dict``). The return value of + ``object_hook`` will be used instead of the ``dict``. This feature + can be used to implement custom decoders (e.g. JSON-RPC class hinting). + + To use a custom ``JSONDecoder`` subclass, specify it with the ``cls`` + kwarg. + """ + if cls is None: + cls = JSONDecoder + if object_hook is not None: + kw['object_hook'] = object_hook + return cls(encoding=encoding, **kw).decode(s) + +def read(s): + """ + json-py API compatibility hook. Use loads(s) instead. + """ + import warnings + warnings.warn("simplejson.loads(s) should be used instead of read(s)", + DeprecationWarning) + return loads(s) + +def write(obj): + """ + json-py API compatibility hook. Use dumps(s) instead. + """ + import warnings + warnings.warn("simplejson.dumps(s) should be used instead of write(s)", + DeprecationWarning) + return dumps(obj) + + diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/simplejson/decoder.py b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/simplejson/decoder.py new file mode 100644 index 0000000000..66f68a200b --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/simplejson/decoder.py @@ -0,0 +1,273 @@ +""" +Implementation of JSONDecoder +""" +import re + +from django.utils.simplejson.scanner import Scanner, pattern + +FLAGS = re.VERBOSE | re.MULTILINE | re.DOTALL + +def _floatconstants(): + import struct + import sys + _BYTES = '7FF80000000000007FF0000000000000'.decode('hex') + if sys.byteorder != 'big': + _BYTES = _BYTES[:8][::-1] + _BYTES[8:][::-1] + nan, inf = struct.unpack('dd', _BYTES) + return nan, inf, -inf + +NaN, PosInf, NegInf = _floatconstants() + +def linecol(doc, pos): + lineno = doc.count('\n', 0, pos) + 1 + if lineno == 1: + colno = pos + else: + colno = pos - doc.rindex('\n', 0, pos) + return lineno, colno + +def errmsg(msg, doc, pos, end=None): + lineno, colno = linecol(doc, pos) + if end is None: + return '%s: line %d column %d (char %d)' % (msg, lineno, colno, pos) + endlineno, endcolno = linecol(doc, end) + return '%s: line %d column %d - line %d column %d (char %d - %d)' % ( + msg, lineno, colno, endlineno, endcolno, pos, end) + +_CONSTANTS = { + '-Infinity': NegInf, + 'Infinity': PosInf, + 'NaN': NaN, + 'true': True, + 'false': False, + 'null': None, +} + +def JSONConstant(match, context, c=_CONSTANTS): + return c[match.group(0)], None +pattern('(-?Infinity|NaN|true|false|null)')(JSONConstant) + +def JSONNumber(match, context): + match = JSONNumber.regex.match(match.string, *match.span()) + integer, frac, exp = match.groups() + if frac or exp: + res = float(integer + (frac or '') + (exp or '')) + else: + res = int(integer) + return res, None +pattern(r'(-?(?:0|[1-9]\d*))(\.\d+)?([eE][-+]?\d+)?')(JSONNumber) + +STRINGCHUNK = re.compile(r'(.*?)(["\\])', FLAGS) +BACKSLASH = { + '"': u'"', '\\': u'\\', '/': u'/', + 'b': u'\b', 'f': u'\f', 'n': u'\n', 'r': u'\r', 't': u'\t', +} + +DEFAULT_ENCODING = "utf-8" + +def scanstring(s, end, encoding=None, _b=BACKSLASH, _m=STRINGCHUNK.match): + if encoding is None: + encoding = DEFAULT_ENCODING + chunks = [] + _append = chunks.append + begin = end - 1 + while 1: + chunk = _m(s, end) + if chunk is None: + raise ValueError( + errmsg("Unterminated string starting at", s, begin)) + end = chunk.end() + content, terminator = chunk.groups() + if content: + if not isinstance(content, unicode): + content = unicode(content, encoding) + _append(content) + if terminator == '"': + break + try: + esc = s[end] + except IndexError: + raise ValueError( + errmsg("Unterminated string starting at", s, begin)) + if esc != 'u': + try: + m = _b[esc] + except KeyError: + raise ValueError( + errmsg("Invalid \\escape: %r" % (esc,), s, end)) + end += 1 + else: + esc = s[end + 1:end + 5] + try: + m = unichr(int(esc, 16)) + if len(esc) != 4 or not esc.isalnum(): + raise ValueError + except ValueError: + raise ValueError(errmsg("Invalid \\uXXXX escape", s, end)) + end += 5 + _append(m) + return u''.join(chunks), end + +def JSONString(match, context): + encoding = getattr(context, 'encoding', None) + return scanstring(match.string, match.end(), encoding) +pattern(r'"')(JSONString) + +WHITESPACE = re.compile(r'\s*', FLAGS) + +def JSONObject(match, context, _w=WHITESPACE.match): + pairs = {} + s = match.string + end = _w(s, match.end()).end() + nextchar = s[end:end + 1] + # trivial empty object + if nextchar == '}': + return pairs, end + 1 + if nextchar != '"': + raise ValueError(errmsg("Expecting property name", s, end)) + end += 1 + encoding = getattr(context, 'encoding', None) + iterscan = JSONScanner.iterscan + while True: + key, end = scanstring(s, end, encoding) + end = _w(s, end).end() + if s[end:end + 1] != ':': + raise ValueError(errmsg("Expecting : delimiter", s, end)) + end = _w(s, end + 1).end() + try: + value, end = iterscan(s, idx=end, context=context).next() + except StopIteration: + raise ValueError(errmsg("Expecting object", s, end)) + pairs[key] = value + end = _w(s, end).end() + nextchar = s[end:end + 1] + end += 1 + if nextchar == '}': + break + if nextchar != ',': + raise ValueError(errmsg("Expecting , delimiter", s, end - 1)) + end = _w(s, end).end() + nextchar = s[end:end + 1] + end += 1 + if nextchar != '"': + raise ValueError(errmsg("Expecting property name", s, end - 1)) + object_hook = getattr(context, 'object_hook', None) + if object_hook is not None: + pairs = object_hook(pairs) + return pairs, end +pattern(r'{')(JSONObject) + +def JSONArray(match, context, _w=WHITESPACE.match): + values = [] + s = match.string + end = _w(s, match.end()).end() + # look-ahead for trivial empty array + nextchar = s[end:end + 1] + if nextchar == ']': + return values, end + 1 + iterscan = JSONScanner.iterscan + while True: + try: + value, end = iterscan(s, idx=end, context=context).next() + except StopIteration: + raise ValueError(errmsg("Expecting object", s, end)) + values.append(value) + end = _w(s, end).end() + nextchar = s[end:end + 1] + end += 1 + if nextchar == ']': + break + if nextchar != ',': + raise ValueError(errmsg("Expecting , delimiter", s, end)) + end = _w(s, end).end() + return values, end +pattern(r'\[')(JSONArray) + +ANYTHING = [ + JSONObject, + JSONArray, + JSONString, + JSONConstant, + JSONNumber, +] + +JSONScanner = Scanner(ANYTHING) + +class JSONDecoder(object): + """ + Simple JSON <http://json.org> decoder + + Performs the following translations in decoding: + + +---------------+-------------------+ + | JSON | Python | + +===============+===================+ + | object | dict | + +---------------+-------------------+ + | array | list | + +---------------+-------------------+ + | string | unicode | + +---------------+-------------------+ + | number (int) | int, long | + +---------------+-------------------+ + | number (real) | float | + +---------------+-------------------+ + | true | True | + +---------------+-------------------+ + | false | False | + +---------------+-------------------+ + | null | None | + +---------------+-------------------+ + + It also understands ``NaN``, ``Infinity``, and ``-Infinity`` as + their corresponding ``float`` values, which is outside the JSON spec. + """ + + _scanner = Scanner(ANYTHING) + __all__ = ['__init__', 'decode', 'raw_decode'] + + def __init__(self, encoding=None, object_hook=None): + """ + ``encoding`` determines the encoding used to interpret any ``str`` + objects decoded by this instance (utf-8 by default). It has no + effect when decoding ``unicode`` objects. + + Note that currently only encodings that are a superset of ASCII work, + strings of other encodings should be passed in as ``unicode``. + + ``object_hook``, if specified, will be called with the result + of every JSON object decoded and its return value will be used in + place of the given ``dict``. This can be used to provide custom + deserializations (e.g. to support JSON-RPC class hinting). + """ + self.encoding = encoding + self.object_hook = object_hook + + def decode(self, s, _w=WHITESPACE.match): + """ + Return the Python representation of ``s`` (a ``str`` or ``unicode`` + instance containing a JSON document) + """ + obj, end = self.raw_decode(s, idx=_w(s, 0).end()) + end = _w(s, end).end() + if end != len(s): + raise ValueError(errmsg("Extra data", s, end, len(s))) + return obj + + def raw_decode(self, s, **kw): + """ + Decode a JSON document from ``s`` (a ``str`` or ``unicode`` beginning + with a JSON document) and return a 2-tuple of the Python + representation and the index in ``s`` where the document ended. + + This can be used to decode a JSON document from a string that may + have extraneous data at the end. + """ + kw.setdefault('context', self) + try: + obj, end = self._scanner.iterscan(s, **kw).next() + except StopIteration: + raise ValueError("No JSON object could be decoded") + return obj, end + +__all__ = ['JSONDecoder'] diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/simplejson/encoder.py b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/simplejson/encoder.py new file mode 100644 index 0000000000..c83c6873eb --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/simplejson/encoder.py @@ -0,0 +1,331 @@ +""" +Implementation of JSONEncoder +""" +import re + +ESCAPE = re.compile(r'[\x00-\x19\\"\b\f\n\r\t]') +ESCAPE_ASCII = re.compile(r'([\\"/]|[^\ -~])') +ESCAPE_DCT = { + # escape all forward slashes to prevent </script> attack + '/': '\\/', + '\\': '\\\\', + '"': '\\"', + '\b': '\\b', + '\f': '\\f', + '\n': '\\n', + '\r': '\\r', + '\t': '\\t', +} +for i in range(0x20): + ESCAPE_DCT.setdefault(chr(i), '\\u%04x' % (i,)) + +# assume this produces an infinity on all machines (probably not guaranteed) +INFINITY = float('1e66666') + +def floatstr(o, allow_nan=True): + # Check for specials. Note that this type of test is processor- and/or + # platform-specific, so do tests which don't depend on the internals. + + if o != o: + text = 'NaN' + elif o == INFINITY: + text = 'Infinity' + elif o == -INFINITY: + text = '-Infinity' + else: + return str(o) + + if not allow_nan: + raise ValueError("Out of range float values are not JSON compliant: %r" + % (o,)) + + return text + + +def encode_basestring(s): + """ + Return a JSON representation of a Python string + """ + def replace(match): + return ESCAPE_DCT[match.group(0)] + return '"' + ESCAPE.sub(replace, s) + '"' + +def encode_basestring_ascii(s): + def replace(match): + s = match.group(0) + try: + return ESCAPE_DCT[s] + except KeyError: + return '\\u%04x' % (ord(s),) + return '"' + str(ESCAPE_ASCII.sub(replace, s)) + '"' + + +class JSONEncoder(object): + """ + Extensible JSON <http://json.org> encoder for Python data structures. + + Supports the following objects and types by default: + + +-------------------+---------------+ + | Python | JSON | + +===================+===============+ + | dict | object | + +-------------------+---------------+ + | list, tuple | array | + +-------------------+---------------+ + | str, unicode | string | + +-------------------+---------------+ + | int, long, float | number | + +-------------------+---------------+ + | True | true | + +-------------------+---------------+ + | False | false | + +-------------------+---------------+ + | None | null | + +-------------------+---------------+ + + To extend this to recognize other objects, subclass and implement a + ``.default()`` method with another method that returns a serializable + object for ``o`` if possible, otherwise it should call the superclass + implementation (to raise ``TypeError``). + """ + __all__ = ['__init__', 'default', 'encode', 'iterencode'] + item_separator = ', ' + key_separator = ': ' + def __init__(self, skipkeys=False, ensure_ascii=True, + check_circular=True, allow_nan=True, sort_keys=False, + indent=None, separators=None): + """ + Constructor for JSONEncoder, with sensible defaults. + + If skipkeys is False, then it is a TypeError to attempt + encoding of keys that are not str, int, long, float or None. If + skipkeys is True, such items are simply skipped. + + If ensure_ascii is True, the output is guaranteed to be str + objects with all incoming unicode characters escaped. If + ensure_ascii is false, the output will be unicode object. + + If check_circular is True, then lists, dicts, and custom encoded + objects will be checked for circular references during encoding to + prevent an infinite recursion (which would cause an OverflowError). + Otherwise, no such check takes place. + + If allow_nan is True, then NaN, Infinity, and -Infinity will be + encoded as such. This behavior is not JSON specification compliant, + but is consistent with most JavaScript based encoders and decoders. + Otherwise, it will be a ValueError to encode such floats. + + If sort_keys is True, then the output of dictionaries will be + sorted by key; this is useful for regression tests to ensure + that JSON serializations can be compared on a day-to-day basis. + + If indent is a non-negative integer, then JSON array + elements and object members will be pretty-printed with that + indent level. An indent level of 0 will only insert newlines. + None is the most compact representation. + + If specified, separators should be a (item_separator, key_separator) + tuple. The default is (', ', ': '). To get the most compact JSON + representation you should specify (',', ':') to eliminate whitespace. + """ + + self.skipkeys = skipkeys + self.ensure_ascii = ensure_ascii + self.check_circular = check_circular + self.allow_nan = allow_nan + self.sort_keys = sort_keys + self.indent = indent + self.current_indent_level = 0 + if separators is not None: + self.item_separator, self.key_separator = separators + + def _newline_indent(self): + return '\n' + (' ' * (self.indent * self.current_indent_level)) + + def _iterencode_list(self, lst, markers=None): + if not lst: + yield '[]' + return + if markers is not None: + markerid = id(lst) + if markerid in markers: + raise ValueError("Circular reference detected") + markers[markerid] = lst + yield '[' + if self.indent is not None: + self.current_indent_level += 1 + newline_indent = self._newline_indent() + separator = self.item_separator + newline_indent + yield newline_indent + else: + newline_indent = None + separator = self.item_separator + first = True + for value in lst: + if first: + first = False + else: + yield separator + for chunk in self._iterencode(value, markers): + yield chunk + if newline_indent is not None: + self.current_indent_level -= 1 + yield self._newline_indent() + yield ']' + if markers is not None: + del markers[markerid] + + def _iterencode_dict(self, dct, markers=None): + if not dct: + yield '{}' + return + if markers is not None: + markerid = id(dct) + if markerid in markers: + raise ValueError("Circular reference detected") + markers[markerid] = dct + yield '{' + key_separator = self.key_separator + if self.indent is not None: + self.current_indent_level += 1 + newline_indent = self._newline_indent() + item_separator = self.item_separator + newline_indent + yield newline_indent + else: + newline_indent = None + item_separator = self.item_separator + first = True + if self.ensure_ascii: + encoder = encode_basestring_ascii + else: + encoder = encode_basestring + allow_nan = self.allow_nan + if self.sort_keys: + keys = dct.keys() + keys.sort() + items = [(k, dct[k]) for k in keys] + else: + items = dct.iteritems() + for key, value in items: + if isinstance(key, basestring): + pass + # JavaScript is weakly typed for these, so it makes sense to + # also allow them. Many encoders seem to do something like this. + elif isinstance(key, float): + key = floatstr(key, allow_nan) + elif isinstance(key, (int, long)): + key = str(key) + elif key is True: + key = 'true' + elif key is False: + key = 'false' + elif key is None: + key = 'null' + elif self.skipkeys: + continue + else: + raise TypeError("key %r is not a string" % (key,)) + if first: + first = False + else: + yield item_separator + yield encoder(key) + yield key_separator + for chunk in self._iterencode(value, markers): + yield chunk + if newline_indent is not None: + self.current_indent_level -= 1 + yield self._newline_indent() + yield '}' + if markers is not None: + del markers[markerid] + + def _iterencode(self, o, markers=None): + if isinstance(o, basestring): + if self.ensure_ascii: + encoder = encode_basestring_ascii + else: + encoder = encode_basestring + yield encoder(o) + elif o is None: + yield 'null' + elif o is True: + yield 'true' + elif o is False: + yield 'false' + elif isinstance(o, (int, long)): + yield str(o) + elif isinstance(o, float): + yield floatstr(o, self.allow_nan) + elif isinstance(o, (list, tuple)): + for chunk in self._iterencode_list(o, markers): + yield chunk + elif isinstance(o, dict): + for chunk in self._iterencode_dict(o, markers): + yield chunk + else: + if markers is not None: + markerid = id(o) + if markerid in markers: + raise ValueError("Circular reference detected") + markers[markerid] = o + for chunk in self._iterencode_default(o, markers): + yield chunk + if markers is not None: + del markers[markerid] + + def _iterencode_default(self, o, markers=None): + newobj = self.default(o) + return self._iterencode(newobj, markers) + + def default(self, o): + """ + Implement this method in a subclass such that it returns + a serializable object for ``o``, or calls the base implementation + (to raise a ``TypeError``). + + For example, to support arbitrary iterators, you could + implement default like this:: + + def default(self, o): + try: + iterable = iter(o) + except TypeError: + pass + else: + return list(iterable) + return JSONEncoder.default(self, o) + """ + raise TypeError("%r is not JSON serializable" % (o,)) + + def encode(self, o): + """ + Return a JSON string representation of a Python data structure. + + >>> JSONEncoder().encode({"foo": ["bar", "baz"]}) + '{"foo":["bar", "baz"]}' + """ + # This doesn't pass the iterator directly to ''.join() because it + # sucks at reporting exceptions. It's going to do this internally + # anyway because it uses PySequence_Fast or similar. + chunks = list(self.iterencode(o)) + return ''.join(chunks) + + def iterencode(self, o): + """ + Encode the given object and yield each string + representation as available. + + For example:: + + for chunk in JSONEncoder().iterencode(bigobject): + mysocket.write(chunk) + """ + if self.check_circular: + markers = {} + else: + markers = None + return self._iterencode(o, markers) + +__all__ = ['JSONEncoder'] diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/simplejson/jsonfilter.py b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/simplejson/jsonfilter.py new file mode 100644 index 0000000000..d02ae2033a --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/simplejson/jsonfilter.py @@ -0,0 +1,40 @@ +from django.utils import simplejson +import cgi + +class JSONFilter(object): + def __init__(self, app, mime_type='text/x-json'): + self.app = app + self.mime_type = mime_type + + def __call__(self, environ, start_response): + # Read JSON POST input to jsonfilter.json if matching mime type + response = {'status': '200 OK', 'headers': []} + def json_start_response(status, headers): + response['status'] = status + response['headers'].extend(headers) + environ['jsonfilter.mime_type'] = self.mime_type + if environ.get('REQUEST_METHOD', '') == 'POST': + if environ.get('CONTENT_TYPE', '') == self.mime_type: + args = [_ for _ in [environ.get('CONTENT_LENGTH')] if _] + data = environ['wsgi.input'].read(*map(int, args)) + environ['jsonfilter.json'] = simplejson.loads(data) + res = simplejson.dumps(self.app(environ, json_start_response)) + jsonp = cgi.parse_qs(environ.get('QUERY_STRING', '')).get('jsonp') + if jsonp: + content_type = 'text/javascript' + res = ''.join(jsonp + ['(', res, ')']) + elif 'Opera' in environ.get('HTTP_USER_AGENT', ''): + # Opera has bunk XMLHttpRequest support for most mime types + content_type = 'text/plain' + else: + content_type = self.mime_type + headers = [ + ('Content-type', content_type), + ('Content-length', len(res)), + ] + headers.extend(response['headers']) + start_response(response['status'], headers) + return [res] + +def factory(app, global_conf, **kw): + return JSONFilter(app, **kw) diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/simplejson/scanner.py b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/simplejson/scanner.py new file mode 100644 index 0000000000..64f4999fb5 --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/django/utils/simplejson/scanner.py @@ -0,0 +1,63 @@ +""" +Iterator based sre token scanner +""" +import sre_parse, sre_compile, sre_constants +from sre_constants import BRANCH, SUBPATTERN +from re import VERBOSE, MULTILINE, DOTALL +import re + +__all__ = ['Scanner', 'pattern'] + +FLAGS = (VERBOSE | MULTILINE | DOTALL) +class Scanner(object): + def __init__(self, lexicon, flags=FLAGS): + self.actions = [None] + # combine phrases into a compound pattern + s = sre_parse.Pattern() + s.flags = flags + p = [] + for idx, token in enumerate(lexicon): + phrase = token.pattern + try: + subpattern = sre_parse.SubPattern(s, + [(SUBPATTERN, (idx + 1, sre_parse.parse(phrase, flags)))]) + except sre_constants.error: + raise + p.append(subpattern) + self.actions.append(token) + + p = sre_parse.SubPattern(s, [(BRANCH, (None, p))]) + self.scanner = sre_compile.compile(p) + + + def iterscan(self, string, idx=0, context=None): + """ + Yield match, end_idx for each match + """ + match = self.scanner.scanner(string, idx).match + actions = self.actions + lastend = idx + end = len(string) + while True: + m = match() + if m is None: + break + matchbegin, matchend = m.span() + if lastend == matchend: + break + action = actions[m.lastindex] + if action is not None: + rval, next_pos = action(m, context) + if next_pos is not None and next_pos != matchend: + # "fast forward" the scanner + matchend = next_pos + match = self.scanner.scanner(string, matchend).match + yield rval, matchend + lastend = matchend + +def pattern(pattern, flags=FLAGS): + def decorator(fn): + fn.pattern = pattern + fn.regex = re.compile(pattern, flags) + return fn + return decorator diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/elemutil.py b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/elemutil.py new file mode 100644 index 0000000000..ad971ba6ba --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/elemutil.py @@ -0,0 +1,168 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. + +# Functions to help represent data as lists of elements and attributes + +from util import * + +element = "'element" +attribute = "'attribute" +atsign = "'@" + +# Return true if a value is an element +def isElement(v): + if not isList(v) or isNil(v) or v == None or car(v) != element: + return False + return True + +# Return true if a value is an attribute +def isAttribute(v): + if not isList(v) or isNil(v) or v == None or car(v) != attribute: + return False + return True + +# Return the name of attribute +def attributeName(l): + return cadr(l) + +# Return the value of attribute +def attributeValue(l): + return caddr(l) + +# Return the name of an element +def elementName(l): + return cadr(l) + +# Return true if an element has children +def elementHasChildren(l): + return not isNil(cddr(l)) + +# Return the children of an element +def elementChildren(l): + return cddr(l) + +# Return true if an element has a value +def elementHasValue(l): + r = reverse(l) + if isSymbol(car(r)): + return False + if isList(car(r)) and not isNil(car(r)) and isSymbol(car(car(r))): + return False + return True + +# Return the value of an element +def elementValue(l): + return car(reverse(l)) + +# Convert an element to a value +def elementToValueIsList(v): + if not isList(v): + return False + return isNil(v) or not isSymbol(car(v)) + +def elementToValue(t): + if isTaggedList(t, attribute): + return (atsign + attributeName(t)[1:], attributeValue(t)) + if isTaggedList(t, element): + if elementHasValue(t): + if not elementToValueIsList(elementValue(t)): + return (elementName(t), elementValue(t)) + return cons(elementName(t), (elementsToValues(elementValue(t)),)) + return cons(elementName(t), elementsToValues(elementChildren(t))) + if not isList(t): + return t + return elementsToValues(t) + +# Convert a list of elements to a list of values +def elementToValueIsSymbol(v): + if not isList(v): + return False + if (isNil(v)): + return False + if not isSymbol(car(v)): + return False + return True + +def elementToValueGroupValues(v, l): + if isNil(l) or not elementToValueIsSymbol(v) or not elementToValueIsSymbol(car(l)): + return cons(v, l) + if car(car(l)) != car(v): + return cons(v, l) + if not elementToValueIsList(cadr(car(l))): + g = (car(v), (cdr(v), cdr(car(l)))) + return elementToValueGroupValues(g, cdr(l)) + g = (car(v), cons(cdr(v), cadr(car(l)))) + return elementToValueGroupValues(g, cdr(l)) + +def elementsToValues(e): + if isNil(e): + return e + return elementToValueGroupValues(elementToValue(car(e)), elementsToValues(cdr(e))) + +# Convert a value to an element +def valueToElement(t): + if isList(t) and not isNil(t) and isSymbol(car(t)): + n = car(t) + v = cadr(t) + if not isList(v): + if n[0:2] == atsign: + return (attribute, n[1:], v) + return (element, n, v) + if isNil(v) or not isSymbol(car(v)): + return cons(element, cons(n, (valuesToElements(v),))) + return cons(element, cons(n, valuesToElements(cdr(t)))) + if not isList(t): + return t + return valuesToElements(t) + +# Convert a list of values to a list of elements +def valuesToElements(l): + if isNil(l): + return l + return cons(valueToElement(car(l)), valuesToElements(cdr(l))) + +# Return a selector lambda function which can be used to filter elements +def evalSelect(s, v): + if isNil(s): + return True + if isNil(v): + return False + if car(s) != car(v): + return False + return evalSelect(cdr(s), cdr(v)) + +def selector(s): + return lambda v: evalSelect(s, v) + +# Return the value of the attribute with the given name +def namedAttributeValue(name, l): + f = filter(lambda v: isAttribute(v) and attributeName(v) == name, l) + if isNil(f): + return None + return caddr(car(f)) + +# Return child elements with the given name +def namedElementChildren(name, l): + return filter(lambda v: isElement(v) and elementName(v) == name, l) + +# Return the child element with the given name +def namedElementChild(name, l): + f = namedElementChildren(name, l) + if isNil(f): + return None + return car(f) + diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/invoker.py b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/invoker.py new file mode 100644 index 0000000000..48107671d6 --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/invoker.py @@ -0,0 +1,108 @@ +#!/usr/bin/python +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. + +# Component invocation functions + +from sys import stderr, argv +from util import * +from jsonutil import * + +# JSON request id +id = 1 + +# Make a callable reference client +class proxy: + def __init__(self, jpx): + self.jpx = jpx + + def __call__(self, func, *args): + + # Create a JSON-RPC request + global id + req = StringIO() + writeStrings(jsonRequest(id, func, args), req) + id = id + 1 + + # Eval the Java proxy + res = self.jpx.eval(req.getvalue()) + + # Extract result from JSON-RPC response + return jsonResultValue((res,)) + + def __repr__(self): + return repr((jpx,)) + +def mkproxies(jpx): + if isNil(jpx): + return () + return cons(proxy(car(jpx)), mkproxies(cdr(jpx))) + +class prop: + def __init__(self, jpy): + self.jpy = jpy + + def __call__(self): + # Eval the property + res = self.jpy.eval() + return res + +def __repr__(self): + return repr((jpy,)) + +def mkprops(jpy): + if isNil(jpy): + return () + return cons(prop(car(jpy)), mkprops(cdr(jpy))) + +# Make a callable component +class component: + def __init__(self, name, impl, jpx, jpy): + self.name = name + self.impl = impl[0:len(impl) - 3] + self.mod = __import__(self.impl) + self.proxies = mkproxies(jpx) + self.props = mkprops(jpy) + + def __call__(self, func, *args): + return self.mod.__getattribute__(func)(*(args + self.proxies + self.props)) + + def __repr__(self): + return repr((self.name, self.impl, self.mod, self.props, self.proxies)) + +# Converts the args received in a JSON request to a list of key value pairs +def jsonArgs(a): + if isNil(a): + return ((),) + l = car(a); + return cons(l, jsonArgs(cdr(a))) + +# Apply a JSON function request to a component +def apply(jsreq, comp): + json = elementsToValues(readJSON((jsreq,))) + args = jsonArgs(json) + jid = cadr(assoc("'id", args)) + func = funcName(cadr(assoc("'method", args))) + params = cadr(assoc("'params", args)) + v = comp(func, *params) + return jsonResult(jid, v)[0] + +# Make a component that can be called with a JSON function request +def mkcomponent(name, impl, jpx, jpy): + comp = component(name, impl, jpx, jpy) + return lambda jsreq: apply(jsreq, comp) + diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/jsonutil.py b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/jsonutil.py new file mode 100644 index 0000000000..f69559de54 --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/jsonutil.py @@ -0,0 +1,142 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. + +# JSON data conversion functions + +try: + import json +except: + from django.utils import simplejson as json + +from StringIO import StringIO +from util import * +from elemutil import * + +# Return true if a list represents a JS array +def isJSArray(l): + if isNil(l): + return True + v = car(l) + if isSymbol(v): + return False + if isList(v): + if not isNil(v) and isSymbol(car(v)): + return False + return True + +# Converts JSON properties to values +def jsPropertiesToValues(propertiesSoFar, o, i): + if isNil(i): + return propertiesSoFar + p = car(i) + jsv = o[p] + v = jsValToValue(jsv) + + if isinstance(p, basestring): + n = str(p) + if n[0:1] == "@": + return jsPropertiesToValues(cons((attribute, "'" + n[1:], v), propertiesSoFar), o, cdr(i)) + if isList(v) and not isJSArray(v): + return jsPropertiesToValues(cons(cons(element, cons("'" + n, v)), propertiesSoFar), o, cdr(i)) + return jsPropertiesToValues(cons((element, "'" + n, v), propertiesSoFar), o, cdr(i)) + return jsPropertiesToValues(cons(v, propertiesSoFar), o, cdr(i)) + +# Converts a JSON val to a value +def jsValToValue(jsv): + if isinstance(jsv, dict): + return jsPropertiesToValues((), jsv, tuple(jsv.keys())) + if isList(jsv): + return jsPropertiesToValues((), jsv, tuple(reversed(range(0, len(jsv))))) + if isinstance(jsv, basestring): + return str(jsv) + return jsv + +# Convert a list of strings representing a JSON document to a list of values +def readJSON(l): + s = StringIO() + writeStrings(l, s) + val = json.loads(s.getvalue()) + return jsValToValue(val) + +# Convert a list of values to JSON array elements +def valuesToJSElements(a, l, i): + if isNil(l): + return a + pv = valueToJSVal(car(l)) + a[i] = pv + return valuesToJSElements(a, cdr(l), i + 1) + +# Convert a value to a JSON value +def valueToJSVal(v): + if not isList(v): + return v + if isJSArray(v): + return valuesToJSElements(list(range(0, len(v))), v, 0) + return valuesToJSProperties({}, v) + +# Convert a list of values to JSON properties +def valuesToJSProperties(o, l): + if isNil(l): + return o + token = car(l) + if isTaggedList(token, attribute): + pv = valueToJSVal(attributeValue(token)) + o["@" + attributeName(token)[1:]] = pv + elif isTaggedList(token, element): + if elementHasValue(token): + pv = valueToJSVal(elementValue(token)) + o[elementName(token)[1:]] = pv + else: + child = {} + o[elementName(token)[1:]] = child + valuesToJSProperties(child, elementChildren(token)) + return valuesToJSProperties(o, cdr(l)) + +# Convert a list of values to a list of strings representing a JSON document +def writeJSON(l): + jsv = valuesToJSProperties({}, l) + s = json.dumps(jsv, separators=(',',':')) + return (s,) + +# Convert a list + params to a JSON-RPC request +def jsonRequest(id, func, params): + r = (("'id", id), ("'method", func), ("'params", params)) + return writeJSON(valuesToElements(r)) + +# Convert a value to a JSON-RPC result +def jsonResult(id, val): + return writeJSON(valuesToElements((("'id", id), ("'result", val)))) + +# Convert a JSON-RPC result to a value +def jsonResultValue(s): + jsres = readJSON(s) + res = elementsToValues(jsres) + val = cadr(assoc("'result", res)) + if isList(val) and not isJSArray(val): + return (val,) + return val + +# Return a portable function name from a JSON-RPC function name +def funcName(f): + if f.startswith("."): + return f[1:] + if f.startswith("system."): + return f[7:] + if f.startswith("Service."): + return f[8:] + return f + diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/rssutil.py b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/rssutil.py new file mode 100644 index 0000000000..4f060d2321 --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/rssutil.py @@ -0,0 +1,119 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. + +# RSS data conversion functions + +from util import * +from elemutil import * +from xmlutil import * + +# Convert a list of elements to a list of values representing an RSS entry +def entryElementsToValues(e): + lt = filter(selector((element, "'title")), e) + t = "" if isNil(lt) else elementValue(car(lt)) + li = filter(selector((element, "'link")), e) + i = "" if isNil(li) else elementValue(car(li)) + lc = filter(selector((element, "'description")), e) + return (t, i, elementValue(car(lc))) + +# Convert a list of elements to a list of values representing RSS entries +def entriesElementsToValues(e): + if isNil(e): + return e + return cons(entryElementsToValues(car(e)), entriesElementsToValues(cdr(e))) + +# Convert a list of strings to a list of values representing an RSS entry +def readRSSEntry(l): + e = readXML(l) + if isNil(e): + return () + return entryElementsToValues(car(e)) + +# Convert a list of values representy an RSS entry to a value +def entryValue(e): + v = elementsToValues((caddr(e),)) + return cons(car(e), (cadr(e), cdr(car(v)))) + +# Return true if a list of strings represents an RSS feed +def isRSSFeed(l): + if isNil(l): + return False + if car(l)[0:5] != "<?xml": + return False + return contains(car(l), "<rss") + +# Convert a list of strings to a list of values representing an RSS feed +def readRSSFeed(l): + f = readXML(l) + if isNil(f): + return () + c = filter(selector((element, "'channel")), car(f)) + t = filter(selector((element, "'title")), car(c)) + i = filter(selector((element, "'link")), car(c)) + e = filter(selector((element, "'item")), car(c)) + if isNil(e): + return (elementValue(car(t)), elementValue(car(i))) + return cons(elementValue(car(t)), cons(elementValue(car(i)), entriesElementsToValues(e))) + +# Convert an RSS feed containing elements to an RSS feed containing values +def feedValuesLoop(e): + if (isNil(e)): + return e + return cons(entryValue(car(e)), feedValuesLoop(cdr(e))) + +def feedValues(e): + return cons(car(e), cons(cadr(e), feedValuesLoop(cddr(e)))) + +# Convert a list of values representy an RSS entry to a list of elements +def entryElement(l): + return (element, "'item", + (element, "'title", car(l)), + (element, "'link", cadr(l)), + (element, "'description", caddr(l))) + +# Convert a list of values representing RSS entries to a list of elements +def entriesElements(l): + if isNil(l): + return l + return cons(entryElement(car(l)), entriesElements(cdr(l))) + +# Convert a list of values representing an RSS entry to an RSS entry +def writeRSSEntry(l): + return writeXML((entryElement(l),), True) + +# Convert a list of values representing an RSS feed to an RSS feed +def writeRSSFeed(l): + c = ((element, "'title", car(l)), + (element, "'link", cadr(l)), + (element, "'description", car(l))) + ce = c if isNil(cddr(l)) else append(c, entriesElements(cddr(l))) + fe = (element, "'rss", (attribute, "'version", "2.0"), append((element, "'channel"), ce)) + return writeXML((fe,), True) + +# Convert an RSS entry containing a value to an RSS entry containing an item element +def entryValuesToElements(v): + return cons(car(v), cons(cadr(v), valuesToElements((cons("'item", caddr(v)),)))) + +# Convert an RSS feed containing values to an RSS feed containing elements +def feedValuesToElementsLoop(v): + if isNil(v): + return v + return cons(entryValuesToElements(car(v)), feedValuesToElementsLoop(cdr(v))) + +def feedValuesToElements(v): + return cons(car(v), cons(cadr(v), feedValuesToElementsLoop(cddr(v)))) + diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/util.py b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/util.py new file mode 100644 index 0000000000..560101e32d --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/util.py @@ -0,0 +1,145 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. + +# Simple utility functions +from sys import maxint + +# Scheme-like lists +def cons(a, b): + return (a,) + b + +def car(l): + return l[0] + +def first(l): + return car(l) + +def cdr(l): + return l[1:] + +def rest(l): + return cdr(l) + +def cadr(l): + return car(cdr(l)) + +def cddr(l): + return cdr(cdr(l)) + +def caddr(l): + return car(cddr(l)) + +def append(a, b): + return a + b + +def reverse(l): + r = list(l) + r.reverse() + return tuple(r) + +def isNil(l): + if isinstance(l, streampair): + return l.isNil() + return l == () + +def isSymbol(v): + return isinstance(v, basestring) and v[0:1] == "'" + +def isList(v): + if getattr(v, '__iter__', False) == False: + return False + if isinstance(v, basestring) or isinstance(v, dict): + return False + return True + +def isTaggedList(v, t): + return isList(v) and not isNil(v) and car(v) == t + + +# Scheme-like streams +class streampair(object): + def __init__(self, car, cdr): + self.car = car + self.cdr = cdr + + def __repr__(self): + return repr(self[0:len(self)]) + + def isNil(self): + return self.cdr == () + + def __len__(self): + if self.cdr == (): + return 0 + return 1 + len(self.cdr()) + + def __getitem__(self, i): + if i == 0: + return self.car + return self.cdr()[i - 1] + + def __getslice__(self, i, j): + if isNil(self): + return () + if i > 0: + if j == maxint: + return self.cdr()[i - 1: j] + return self.cdr()[i - 1: j - 1] + if j == maxint: + return self + if j == 0: + return (self.car,) + return (self.car,) + self.cdr()[: j - 1] + + def __eq__(self, other): + sl = len(self) + ol = len(other) + if sl != ol: + return False + return self[0: sl] == other[0: ol] + + def __ne__(self, other): + return not self.__eq__(other) + +def cons_stream(car, cdr): + return streampair(car, cdr) + + +# Scheme-like associations +def assoc(k, l): + if l == (): + return None + + if k == car(car(l)): + return car(l) + return assoc(k, cdr(l)) + +# Currying / partial function application +def curry(f, *args): + return lambda *a: f(*(args + a)) + +# Split a path into a list of segments +def tokens(path): + return tuple(filter(lambda s: len(s) != 0, path.split("/"))) + +# Write a list of strings to a stream +def writeStrings(l, os): + if l == (): + return os + os.write(car(l)) + return writeStrings(cdr(l), os) + diff --git a/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/xmlutil.py b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/xmlutil.py new file mode 100644 index 0000000000..a1bc04629a --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta2/modules/implementation-python-runtime/src/main/resources/xmlutil.py @@ -0,0 +1,114 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. + +# XML handling functions + +from StringIO import StringIO +from xml.parsers import expat +import xml.etree.ElementTree as et +from util import * +from elemutil import * + +# Read a list of XML attributes +def readAttributes(a): + if a == (): + return a + return cons((attribute, "'" + car(car(a)), cadr(car(a))), readAttributes(cdr(a))) + +# Read an XML element +def readElement(e): + l = (element, "'" + e.tag) + readAttributes(tuple(e.items())) + readElements(tuple(e.getchildren())) + if e.text == None: + return l + return l + (e.text,) + +# Read a list of XML elements +def readElements(l): + if l == (): + return l + return cons(readElement(car(l)), readElements(cdr(l))) + +# Parse a list of strings representing an XML document +class NamespaceParser(et.XMLTreeBuilder): + def __init__(self): + et.XMLTreeBuilder.__init__(self) + self._parser = parser = expat.ParserCreate(None) + parser.DefaultHandlerExpand = self._default + parser.StartElementHandler = self._start + parser.EndElementHandler = self._end + parser.CharacterDataHandler = self._data + try: + parser.buffer_text = 1 + except AttributeError: + pass + try: + parser.ordered_attributes = 1 + parser.specified_attributes = 1 + parser.StartElementHandler = self._start_list + except AttributeError: + pass + +def parseXML(l): + s = StringIO() + writeStrings(l, s) + parser = NamespaceParser() + parser.feed(s.getvalue()) + return parser.close() + +# Read a list of values from a list of strings representing an XML document +def readXML(l): + e = parseXML(l) + return (readElement(e),) + +# Write a list of XML element and attribute tokens +def expandElementValues(n, l): + if isNil(l): + return l + return cons(cons(element, cons(n, car(l))), expandElementValues(n, cdr(l))) + +def writeList(l, xml): + if isNil(l): + return xml + token = car(l) + if isTaggedList(token, attribute): + xml.attrib[attributeName(token)[1:]] = str(attributeValue(token)) + elif isTaggedList(token, element): + if elementHasValue(token): + v = elementValue(token) + if isList(v): + e = expandElementValues(elementName(token), v) + writeList(e, xml) + else: + child = et.Element(elementName(token)[1:]) + writeList(elementChildren(token), child) + xml.append(child) + else: + child = et.Element(elementName(token)[1:]) + writeList(elementChildren(token), child) + xml.append(child) + else: + xml.text = str(token) + writeList(cdr(l), xml) + return xml + +# Convert a list of values to a list of strings representing an XML document +def writeXML(l, xmlTag): + e = writeList(l, []) + if not xmlTag: + return (et.tostring(car(e)),) + return (et.tostring(car(e), "UTF-8") + "\n",) + |