def serializeField(t, access, extra_args=None):
with java.Method(
w,
'\nprivate',
'void',
'serializeField',
([('String', 'fieldname'), (t, 'value')] +
(extra_args or []) + [('XMLStreamWriter', 'xsw')]),
throws=['XMLStreamException']):
with java.If(w, 'value != null'):
w('xsw.writeStartElement(fieldname);')
w('serialize(value{}, xsw);',
''.join(', ' + arg for (_, arg) in extra_args or []))
w('xsw.writeEndElement();')
with java.Method(
w,
'\nprivate',
'void',
'serializeAttr',
([('String', 'fieldname'), (t, 'value')] +
(extra_args or []) + [('XMLStreamWriter', 'xsw')]),
throws=['XMLStreamException']):
with java.If(w, 'value != null'):
w('xsw.writeAttribute(fieldname, {});', access)
def serialize(t, access, extra_args=None):
with java.Method(
w,
'\nprivate',
'void',
'serialize',
([(t, 'value')] +
(extra_args or []) + [('XMLStreamWriter', 'xsw')]),
throws=['XMLStreamException']):
w('xsw.writeCharacters({});', access)
def read(t, access, extra_args=None):
with java.Method(w,
'\nprivate',
t,
'read' + t, [('XMLStreamReader', 'xsr')],
throws=['XMLStreamException']):
with java.If(w, '!getCharacters(xsr)'):
w('return null;')
w('{} result = {};', t, access)
w('expect(XMLStreamConstants.END_ELEMENT, xsr.next());')
w('return result;')
def controller(interfaces, context):
(app, module, package, model_class, write_file, _, _) = context
w = writer.Writer('java')
java.Package(w, package)
java.Import(w, 'io.swagger.annotations.Api')
java.Import(w, 'io.swagger.annotations.ApiOperation')
java.Import(w, 'io.swagger.annotations.ApiParam')
java.Import(w, 'io.swagger.annotations.ApiResponse')
java.Import(w, 'io.swagger.annotations.ApiResponses')
java.Import(w, 'lombok.extern.slf4j.Slf4j')
java.Import(w, 'org.springframework.beans.factory.annotation.Autowired')
java.Import(w, 'org.springframework.web.bind.annotation.PathVariable')
java.Import(w, 'org.springframework.web.bind.annotation.RequestHeader')
java.Import(w, 'org.springframework.web.bind.annotation.RequestMapping')
java.Import(w, 'org.springframework.web.bind.annotation.RequestMethod')
java.Import(w, 'org.springframework.web.bind.annotation.RequestParam')
java.Import(w, 'org.springframework.web.bind.annotation.ResponseBody')
java.Import(w, 'org.springframework.web.bind.annotation.RestController')
w()
w('@Api(value = {}, description = {}, position = {})',
json.dumps(app.long_name),
json.dumps(syslx.View(app.attrs)['description'].s), 1)
w('@Slf4j')
w('@RestController')
w('@ResponseBody')
w('@RequestMapping(value = {}, produces = {})', json.dumps('/'),
json.dumps('application/json;version=1.0;charset=UTF-8;'))
with java.Class(w,
model_class + 'Controller',
write_file,
visibility='public',
package=package):
endpts = app.endpoints.itervalues()
interfaces = {endpt.attrs['interface'].s for endpt in endpts}
for (i, interface) in enumerate(sorted(interfaces)):
if not interface:
endpts = app.endpoints.itervalues()
endpts_no_interface = [
endpt.name for endpt in endpts
if not endpt.attrs['interface'].s
]
print 'No interfaces for\n' + ('\n').join(endpts_no_interface)
continue
w('\n@Autowired'[not i:])
w('private {} {};', interface, java.mixedCase(interface))
scope = scopes.Scope(module)
for (epname, endpt) in (sorted(app.endpoints.iteritems(),
key=lambda t:
(t[1].rest_params.path, t[0]))):
if not endpt.HasField('rest_params'):
continue
rp = endpt.rest_params
rest_method = rp.Method.Name(rp.method)
method_name = (rest_method +
rex.sub(r'{(\w+)}', lambda m: m.group(1).upper(),
rex.sub(r'[-/]', '_', rp.path)))
def responses(stmts, result=None, cond=''):
if result is None:
result = collections.defaultdict(list)
for stmt in stmts:
which_stmt = stmt.WhichOneof('stmt')
if which_stmt == 'cond':
responses(stmt.cond.stmt, result,
(cond and cond + ' & ') + stmt.cond.test)
elif which_stmt == 'ret':
m = rex.match(
ur'''
(?:
(?:
(\d+)·
(\([^\)]+\))?·
(\w+)?·
(?:
<:·
(empty\s+)?
(set\s+of\s+)?
([\w.]+|\.\.\.)
)?
)
|
(?:
one\s+of·{((?:\d+·,·)*\d+·)}
)
)?
$
''', stmt.ret.payload)
if m:
[
status, descr, expr, empty, setof, type_,
statuses
] = m.groups()
for status in rex.split(ur'·,·', status
or statuses):
status = int(status)
result[int(status)].append(
cond or descr
or STATUS_MAP.get(int(status)) or '???')
else:
print repr(stmt.ret.payload)
raise Exception('Bad return statement')
return result
w()
w('@RequestMapping(method = RequestMethod.{}, \vpath = {})',
rest_method, json.dumps(rp.path))
w('@ApiOperation(value = {})', json.dumps(endpt.docstring))
w('@ApiResponses({{')
with w.indent():
for (status,
conds) in sorted(responses(endpt.stmt).iteritems()):
w('@ApiResponse(code = {}, message =', status)
with w.indent():
for (i, cond) in enumerate(conds):
w('"<p style=\\"white-space:nowrap\\">{}</p>"{}',
cond, ' +' if i < len(conds) - 1 else '')
w('),')
w('}})')
params = codeForParams(rp.query_param, scope)
with java.Method(w, 'public', 'Object', method_name, params):
w('return {}.{}({});',
java.mixedCase(endpt.attrs['interface'].s), method_name,
', '.join('\v' + p for (_, p) in params))
def export_facade_class(context):
model_name = syslx.fmt_app_name(context.wrapped_model.name)
modelpkg = syslx.View(context.wrapped_model.attrs)['package'].s
w = writer.Writer('java')
java.Package(w, context.package)
java.StandardImports(w)
java.Import(w, modelpkg + '.' + model_name)
w()
with java.Class(w,
context.appname,
context.write_file,
package=context.package):
with java.Ctor(w, '\npublic', context.appname,
[(model_name, 'model')]):
w('this.model = model;')
for (tname, _, _) in syslx.wrapped_facade_types(context):
w('this.{}Facade = new {}Facade();',
java.safe(tname[:1].lower() + tname[1:]), tname)
with java.Method(w, '\npublic', model_name, 'getModel'):
w('return model;')
java.SeparatorComment(w)
for (tname, ft, t) in syslx.wrapped_facade_types(context):
if t.HasField('relation'):
pkey = datamodel.primary_key_params(t, context.module)
pkey_fields = {f for (_, f, _) in pkey}
param_defs = [(typ, jfname) for (typ, fname, jfname) in pkey
if 'autoinc' not in syslx.patterns(
t.relation.attr_defs[fname].attrs)]
params = ''.join(', ' + f for (_, f) in param_defs)
param = ', '.join(f for (_, f) in param_defs)
fkeys = {
java.name(fname): type_info
for (fname, _, type_info
) in datamodel.foreign_keys(t, context.module)
}
inner_type = ('HashMap<Key, {}>'
if pkey else 'HashSet<{}>').format(tname)
required = []
for fname in sorted(ft.relation.attr_defs.keys()):
f = t.relation.attr_defs.get(fname)
if ('required' in syslx.patterns(f.attrs)
or 'required' in syslx.patterns(
ft.relation.attr_defs.get(fname).attrs)):
jfname = java.name(fname)
method = java.CamelCase(jfname)
(java_type, type_info,
_) = datamodel.typeref(f, context.module)
if java_type == 'Object':
datamodel.typeref(f, context.module)
required.append((fname, java_type))
with java.Method(w, '\npublic', tname + 'Facade',
'get' + tname):
w('return {}Facade;',
java.safe(tname[:1].lower() + tname[1:]))
w()
with java.Class(w, tname + 'Facade', context.write_file):
with java.Method(w, 'public',
'{}.{}.Table'.format(modelpkg,
tname), 'table'):
w('return model.get{}Table();', tname, param)
w()
if param_defs or required:
with java.Method(w, 'public', 'Builder0', 'build'):
w('return new Builder0();')
keytypes = {f: kt for (kt, f) in param_defs}
keys = sorted(keytypes)
keyindices = {k: i for (i, k) in enumerate(keys)}
if len(keys) > 3:
# 4 perms yields 16 builders with 32 setters.
logging.error('OUCH! Too many primary key fields')
raise Exception('Too many primary key fields')
for perm in range(2**len(keys)):
bname = 'Builder' + str(perm)
w()
with java.Class(w, bname, context.write_file):
done = [
k for (i, k) in enumerate(keys)
if 2**i & perm
]
remaining = [k for k in keys if k not in done]
with java.Ctor(w, '', bname, [(keytypes[k], k)
for k in done]):
for k in done:
w('this.{0} = {0};', k)
if required and not remaining:
w(
'this._pending = {};',
hex(2**len(required) -
1).rstrip('L'))
for fname in remaining:
f = t.relation.attr_defs[fname]
jfname = java.name(fname)
method = java.CamelCase(jfname)
(java_type, type_info,
_) = datamodel.typeref(f, context.module)
next_bname = 'Builder{}'.format(
perm | 2**keyindices[fname])
w()
if jfname in fkeys:
fk_type = fkeys[jfname].parent_path
fk_field = fkeys[jfname].field
if f.type_ref.ref.path[-1:] == [fname]:
method_suffix = fk_type
else:
method_suffix = method + 'From'
with java.Method(
w, 'public', next_bname,
'with' + method_suffix,
[(modelpkg + '.' + fk_type,
'entity')]):
w(
'{} {} = entity == null ? null : entity.get{}();',
java_type, jfname,
java.CamelCase(fk_field))
w(
'return new {}({});',
next_bname,
', '.join(k for k in keys
if k == fname
or k in done))
else:
with java.Method(
w, 'public', next_bname,
'with' + java.CamelCase(fname),
[(keytypes[fname], fname)]):
w(
'return new {}({});',
next_bname,
', '.join(k for k in keys
if k == fname
or k in done))
if not remaining:
for (i, (r, rtype)) in enumerate(required):
method = java.CamelCase(r)
w()
# TODO: jfname set in a previous loop??
if jfname in fkeys:
fk_type = fkeys[jfname].parent_path
fk_field = fkeys[jfname].field
if f.type_ref.ref.path[-1:] == [
fname
]:
method = fk_type
else:
method += 'From'
with java.Method(
w, 'public', bname,
'with' + method,
[(modelpkg + '.' + fk_type,
java.mixedCase(fk_type))]):
with java.If(
w,
'(_pending & {}) == 0',
hex(2**i)):
# TODO: More specific
# exception
w('throw new RuntimeException();'
)
w('this.{0} = {0};',
java.mixedCase(fk_type))
w('_pending &= ~{};',
hex(2**i))
w('return this;')
else:
with java.Method(
w, 'public', bname,
'with' + method,
[(rtype, r)]):
with java.If(
w,
'(_pending & {}) == 0',
hex(2**i)):
# TODO: More specific
# exception
w('throw new RuntimeException();'
)
w('this.{0} = {0};', r)
w('_pending &= ~{};',
hex(2**i))
w('return this;')
with java.Method(w, '\npublic',
modelpkg + '.' + tname,
'insert'):
if required:
with java.If(w, '_pending != 0'):
# TODO: More specific exception
w('throw new RuntimeException();'
)
w(
u'{} result = table()._PRIVATE_insert({});',
modelpkg + '.' + tname, param)
for (r, rtype) in required:
if jfname in fkeys:
fk_field = fkeys[
jfname].field
w('result.set{}({});',
fk_type,
java.mixedCase(fk_type))
else:
w('result.set{}({});',
java.CamelCase(r), r)
w('return result;')
else:
w(
u'return table()._PRIVATE_insert({});',
param)
if done:
w()
w('// primary key')
for d in done:
w('private final {} {};', keytypes[d],
d)
if required and not remaining:
w()
w('// required fields')
for (r, rtype) in required:
if jfname in fkeys:
fk_type = fkeys[jfname].parent_path
fk_field = fkeys[jfname].field
w('private {} {};',
modelpkg + '.' + fk_type,
java.mixedCase(fk_type))
else:
w('private {} {};', rtype, r)
w()
w('private int _pending;')
else:
with java.Method(w, 'public', modelpkg + '.' + tname,
'insert'):
w('{} result = table()._PRIVATE_insert();',
modelpkg + '.' + tname)
w('return result;')
java.SeparatorComment(w)
for (tname, _, t) in syslx.wrapped_facade_types(context):
if t.HasField('relation'):
w('private final {}Facade {}Facade;', tname,
java.safe(tname[:1].lower() + tname[1:]))
w()
w('private final {}.{} model;', modelpkg, model_name)
w()
def serializer(context):
(app, module, package, model_class, write_file, _, _) = context
facade = bool(context.wrapped_model)
w = writer.Writer('java')
java.Package(w, package)
java.StandardImports(w)
java.Import(w, 'java.io.IOException')
w.head()
java.Import(w, 'java.text.ParseException')
w.head()
java.Import(w, 'com.fasterxml.jackson.core.JsonGenerator')
java.Import(w, 'com.fasterxml.jackson.databind.JsonSerializer')
java.Import(w, 'com.fasterxml.jackson.databind.SerializerProvider')
w.head()
java.Import(w, 'org.joda.time.format.DateTimeFormatter')
java.Import(w, 'org.joda.time.format.ISODateTimeFormat')
if facade:
model_name = syslx.fmt_app_name(context.wrapped_model.name)
modelpkg = syslx.View(context.wrapped_model.attrs)['package'].s
w.head()
java.Import(w, modelpkg + '.*')
w()
with java.Class(w,
model_class + 'JsonSerializer',
write_file,
package=package,
extends='JsonSerializer<' + model_class + '>'):
w()
with java.Method(w,
'public',
'void',
'serialize',
[(model_class, 'facade' if facade else 'model'),
('JsonGenerator', 'g'),
('SerializerProvider', 'provider')],
throws=['IOException'],
override=True):
if facade:
w('{} model = facade.getModel();', model_name)
w(u'g.writeStartObject();')
for (tname, t) in sorted(app.types.iteritems()):
if t.WhichOneof('type') == 'relation':
w(u'serialize{0}View(g, model.get{0}Table());', tname)
w(u'g.writeEndObject();')
for (tname, t) in sorted(app.types.iteritems()):
if not t.WhichOneof('type') in ['relation', 'tuple']:
continue
java.SeparatorComment(w)
if t.WhichOneof('type') == 'relation':
w()
with java.Method(w,
'public',
'void',
'serialize' + tname + 'View',
[('JsonGenerator', 'g'),
(tname + '.View', 'view')],
throws=['IOException']):
with java.If(w, 'view.isEmpty()'):
w('return;')
w('g.writeArrayFieldStart("{}");', tname)
with java.For(w, '{} item : view', tname):
w('g.writeStartObject();')
for (fname, f) in datamodel.sorted_fields(t):
jfname = java.name(fname)
method = java.CamelCase(jfname)
type_ = datamodel.typeref(f, module)[2]
extra = '{}'
which_type = type_.WhichOneof('type')
if which_type == 'primitive':
(jsontype,
extra) = JSON_GEN_MAP[type_.primitive]
if type_.primitive == type_.DECIMAL:
for c in type_.constraint:
if c.scale:
access = (
'{0} == null ? null : item.{0}.setScale({1}, '
'java.math.RoundingMode.HALF_UP)'
).format(jfname, c.scale)
break
else:
access = jfname
elif which_type == 'enum':
jsontype = 'Number'
access = jfname + '.getValue()'
elif which_type == 'tuple':
access = jfname
else:
raise RuntimeError(
'Unexpected field type for JSON export: ' +
which_type)
w(u'writeField(g, "{}", {});', jfname,
extra.format('item.' + access))
w(u'g.writeEndObject();')
w(u'g.writeEndArray();')
else:
# fieldname, entity
with java.Method(w,
'public',
'void',
'serialize', [('JsonGenerator', 'g'),
('String', 'fieldname'),
(tname, 'entity')],
throws=['IOException']):
with java.If(w, 'entity == null'):
w(u'return;')
w(u'g.writeFieldName(fieldname);')
w(u'serialize(g, entity);')
# entity
with java.Method(w,
'public',
'void',
'serialize', [('JsonGenerator', 'g'),
(tname, 'entity')],
throws=['IOException']):
w(u'g.writeStartObject();')
for (fname, f) in datamodel.sorted_fields(t):
jfname = java.name(fname)
method = java.CamelCase(jfname)
type_ = datamodel.typeref(f, module)[2]
which_type = ''
if type_ is None:
if f.WhichOneof(
'type') == 'set' and f.set.HasField(
'primitive'):
which_type = 'tuple'
else:
which_type = type_.WhichOneof('type')
extra = '{}'
if which_type == 'primitive':
access = 'entity.get{}()'.format(method)
(jsontype, extra) = JSON_GEN_MAP[type_.primitive]
if type_.primitive == type_.DECIMAL:
for c in type_.constraint:
if c.scale:
access = (
'entity.{} == null ? null : entity.get{}().setScale({}, '
'java.math.RoundingMode.HALF_UP)'
).format(jfname, method, c.scale)
break
w(u'writeField(g, "{}", {});', jfname, access)
elif which_type == 'enum':
access = 'entity.{} == null ? null : entity.get{}().getValue()'.format(
jfname, method)
w(u'writeField(g, "{}", {});', jfname, access)
elif which_type == 'tuple':
w(u'serialize(g, "{}", entity.get{}());'.format(
fname, method))
else:
raise RuntimeError(
'Unexpected field type for JSON export: ' +
which_type)
# end for
w(u'g.writeEndObject();')
w()
# view, fieldname
with java.Method(w,
'public',
'void',
'serialize', [('JsonGenerator', 'g'),
('String', 'fieldname'),
(tname + '.View', 'view')],
throws=['IOException']):
with java.If(w, 'view == null || view.isEmpty()'):
w(u'return;')
w(u'g.writeArrayFieldStart(fieldname);')
with java.For(w, '{} item : view', tname):
w(u'serialize(g, item);')
w(u'g.writeEndArray();')
for t in ['Boolean', 'String']:
w()
with java.Method(w,
'private',
'void',
'writeField', [('JsonGenerator', 'g'),
('String', 'fieldname'),
(t, 'value')],
throws=['IOException']):
with java.If(w, 'value != null'):
w('g.write{}Field(fieldname, value);', t)
# TODO(sahejsingh): implement for ['Boolean', 'Integer', 'Double', 'BigDecimal', 'DateTime', 'LocalDate', 'UUID']
w()
with java.Method(w,
'private',
'void',
'serialize', [('JsonGenerator', 'g'),
('String', 'fieldname'),
('HashSet<String>', 'value')],
throws=['IOException']):
with java.If(w, 'value == null || value.isEmpty()'):
w(u'return;')
w(u'g.writeArrayFieldStart(fieldname);')
with java.For(w, 'String item : value', t):
w(u'g.writeString(item);')
w(u'g.writeEndArray();')
w()
with java.Method(w,
'private',
'void',
'writeField', [('JsonGenerator', 'g'),
('String', 'fieldname'),
('Integer', 'value')],
throws=['IOException']):
with java.If(w, 'value != null'):
w('g.writeNumberField(fieldname, value.intValue());')
w()
with java.Method(w,
'private',
'void',
'writeField', [('JsonGenerator', 'g'),
('String', 'fieldname'),
('Double', 'value')],
throws=['IOException']):
with java.If(w, 'value != null'):
w('g.writeNumberField(fieldname, value.doubleValue());')
w()
with java.Method(w,
'private',
'void',
'writeField', [('JsonGenerator', 'g'),
('String', 'fieldname'),
('BigDecimal', 'value')],
throws=['IOException']):
with java.If(w, 'value != null'):
w('g.writeNumberField(fieldname, value);')
w()
with java.Method(w,
'private',
'void',
'writeField', [('JsonGenerator', 'g'),
('String', 'fieldname'),
('DateTime', 'value')],
throws=['IOException']):
with java.If(w, 'value != null'):
w('g.writeStringField(fieldname, iso8601DateTime.print(value));'
)
w()
with java.Method(w,
'private',
'void',
'writeField', [('JsonGenerator', 'g'),
('String', 'fieldname'),
('LocalDate', 'value')],
throws=['IOException']):
with java.If(w, 'value != null'):
w('g.writeStringField(fieldname, iso8601Date.print(value));')
w()
with java.Method(w,
'private',
'void',
'writeField', [('JsonGenerator', 'g'),
('String', 'fieldname'),
('UUID', 'value')],
throws=['IOException']):
with java.If(w, 'value != null'):
w('g.writeStringField(fieldname, value.toString());')
w('\nprivate final DateTimeFormatter iso8601Date = '
'ISODateTimeFormat.date();')
w('private final DateTimeFormatter iso8601DateTime = '
'ISODateTimeFormat.dateTime();')
def deserializer(context):
(app, module, package, model_class, write_file, _, _) = context
facade = bool(context.wrapped_model)
w = writer.Writer('java')
java.Package(w, package)
java.StandardImports(w)
java.Import(w, 'java.io.IOException')
w.head()
java.Import(w, 'java.text.ParseException')
w.head()
java.Import(w, 'com.fasterxml.jackson.core.JsonParseException')
java.Import(w, 'com.fasterxml.jackson.core.JsonParser')
java.Import(w, 'com.fasterxml.jackson.core.JsonToken')
java.Import(w, 'com.fasterxml.jackson.databind.JsonDeserializer')
java.Import(w, 'com.fasterxml.jackson.databind.DeserializationContext')
w.head()
java.Import(w, 'org.joda.time.format.DateTimeFormatter')
java.Import(w, 'org.joda.time.format.ISODateTimeFormat')
if facade:
model_name = syslx.fmt_app_name(context.wrapped_model.name)
modelpkg = syslx.View(context.wrapped_model.attrs)['package'].s
w.head()
java.Import(w, modelpkg + '.*')
else:
model_name = model_class
has_tables = any(
t.HasField('relation') for (tname, t) in sorted(app.types.iteritems()))
w()
with java.Class(w,
model_class + 'JsonDeserializer',
write_file,
package=package,
extends='JsonDeserializer<' + model_class + '>'):
w()
with java.Method(w,
'public',
model_class,
'deserialize',
[('JsonParser', 'p'),
('DeserializationContext', 'provider')],
throws=['IOException', 'JsonParseException'],
override=True):
w('{0} model = new {0}();', model_name)
if facade:
w('{0} facade = new {0}(model);', model_class)
w()
w('eatToken(p, JsonToken.START_OBJECT);')
with java.While(w, 'p.getCurrentToken() != JsonToken.END_OBJECT'):
with java.Switch(w, 'eatName(p)'):
for (tname, t) in sorted(app.types.iteritems()):
if t.HasField('relation'):
w(('case "{0}": deserialize{0}Table(p, '
'model.get{0}Table()); break;'), tname)
w('default: skipJson(p);')
w('expectToken(p, JsonToken.END_OBJECT);')
w()
if facade:
w('return facade;')
else:
w('return model;')
for (tname, t) in sorted(app.types.iteritems()):
if not t.HasField('relation') and t.HasField('tuple'):
# HashSet<User defined type>
with java.Method(w,
'private',
tname + '.View',
'deserialize' + tname + 'View',
[('JsonParser', 'p')],
throws=['IOException', 'JsonParseException']):
w()
w('{0}.Set view = new {0}.Set();', tname)
w('eatToken(p, JsonToken.START_ARRAY);')
with java.While(
w, 'p.getCurrentToken() != JsonToken.END_ARRAY'):
w('{0} entity = {0}._PRIVATE_new();', tname)
w('deserialize(p, entity);')
w('view.add(entity);')
w('p.nextToken();')
w('return view;')
with java.Method(w,
'public',
tname,
'deserialize', [('JsonParser', 'p'),
(tname, 'entity')],
throws=['IOException', 'JsonParseException'],
override=False):
w()
w('eatToken(p, JsonToken.START_OBJECT);')
with java.If(w, 'entity == null'):
w('entity = {0}._PRIVATE_new();', tname)
with java.While(
w, 'p.getCurrentToken() != JsonToken.END_OBJECT'):
with java.Switch(w, 'eatName(p)'):
for (fname, f) in datamodel.sorted_fields(t):
jfname = java.name(fname)
(typename, _,
type_) = datamodel.typeref(f, module)
extra = '{}'
set_with_primitive = False
if type_ is None:
if f.WhichOneof(
'type'
) == 'set' and f.set.HasField('primitive'):
which_type = 'tuple'
set_with_primitive = True
type_ = f.set
else:
which_type = type_.WhichOneof('type')
if which_type == 'primitive':
jsontype = JSON_PARSE_MAP[type_.primitive]
if isinstance(jsontype, tuple):
(jsontype, extra) = jsontype
elif which_type == 'enum':
jsontype = 'IntValue'
extra = typename + '.from({})'
elif which_type == 'tuple':
if set_with_primitive:
extra = 'deserializeArray(p)'
elif f.WhichOneof('type') == 'set':
extra = 'deserialize{}View(p)'.format(
f.set.type_ref.ref.path[-1])
elif f.WhichOneof('type') == 'type_ref':
extra = 'deserialize(p, entity.get{}())'.format(
jfname)
jsontype = ''
else:
raise RuntimeError(
'Unexpected field type for JSON export: '
+ which_type)
private = ''
if type_.primitive in [
sysl_pb2.Type.DATE,
sysl_pb2.Type.DATETIME
]:
with java.Case(w, '"{}"', jfname):
w(('entity.{}set{}('
'p.getCurrentToken() == JsonToken.VALUE_NULL'
' ? null : {}); p.nextToken(); break;'
), private, java.CamelCase(jfname),
extra.format(
'p.get{}()'.format(jsontype)))
else:
w(('case "{}": entity.{}set{}(p.getCurrentToken() == '
'JsonToken.VALUE_NULL ? null : {}); {} break;'
), jfname, private,
java.CamelCase(jfname),
extra.format(
'p.get{}()'.format(jsontype)),
'' if which_type == 'tuple' else
'p.nextToken();')
w('default: skipJson(p);')
w('p.nextToken();')
w('return entity;')
continue
pkey = datamodel.primary_key_params(t, context.module)
pkey_fields = {f for (_, f, _) in pkey}
fkeys = {
java.name(fname): type_info
for (fname, _,
type_info) in datamodel.foreign_keys(t, context.module)
}
private_setters = pkey_fields | set(fkeys.iterkeys())
w()
with java.Method(w,
'private',
'void',
'deserialize' + tname + 'Table',
[('JsonParser', 'p'),
(tname + '.Table', 'table')],
throws=['IOException', 'JsonParseException']):
w('eatToken(p, JsonToken.START_ARRAY);')
with java.While(w,
'p.getCurrentToken() != JsonToken.END_ARRAY'):
w('eatToken(p, JsonToken.START_OBJECT);')
w('{0} entity = {0}._PRIVATE_new(table.model());', tname)
with java.While(
w, 'p.getCurrentToken() != JsonToken.END_OBJECT'):
with java.Switch(w, u'eatName(p)'):
for (fname, f) in datamodel.sorted_fields(t):
jfname = java.name(fname)
(typename, _,
type_) = datamodel.typeref(f, module)
extra = '{}'
which_type = type_.WhichOneof('type')
if which_type == 'primitive':
jsontype = JSON_PARSE_MAP[type_.primitive]
if isinstance(jsontype, tuple):
(jsontype, extra) = jsontype
elif which_type == 'enum':
jsontype = 'IntValue'
extra = typename + '.from({})'
else:
raise RuntimeError(
'Unexpected field type for JSON export: '
+ which_type)
private = '_PRIVATE_' if jfname in private_setters else ''
if type_.primitive in [
sysl_pb2.Type.DATE,
sysl_pb2.Type.DATETIME
]:
with java.Case(w, '"{}"', jfname):
w(('entity.{}set{}('
'p.getCurrentToken() == JsonToken.VALUE_NULL'
' ? null : {}); break;'), private,
java.CamelCase(jfname),
extra.format(
'p.get{}()'.format(jsontype)))
else:
w(('case "{}": entity.{}set{}(p.getCurrentToken() == '
'JsonToken.VALUE_NULL ? null : {}); break;'
), jfname, private,
java.CamelCase(jfname),
extra.format(
'p.get{}()'.format(jsontype)))
with java.Default(w):
w('skipJson(p);')
w('continue;')
w('p.nextToken();')
w('p.nextToken();')
w()
w('table.insert(entity);')
w('p.nextToken();')
# HashSet<Primitive Type>
with java.Method(w,
'private',
'HashSet<String>',
'deserializeArray', [('JsonParser', 'p')],
throws=['IOException', 'JsonParseException']):
w()
w('HashSet<String> view = new HashSet<String>();')
w('eatToken(p, JsonToken.START_ARRAY);')
with java.While(w, 'p.getCurrentToken() != JsonToken.END_ARRAY'):
w('expectToken(p, JsonToken.VALUE_STRING);')
w('view.add(p.getText());')
w('p.nextToken();')
w('p.nextToken();')
w('return view;')
with java.Method(w,
'\nprivate',
'void',
'eatToken', [('JsonParser', 'p'),
('JsonToken', 'token')],
throws=['IOException']):
w(u'expectToken(p, token);')
w(u'p.nextToken();')
with java.Method(w, '\nprivate', 'void', 'expectToken',
[('JsonParser', 'p'), ('JsonToken', 'token')]):
with java.If(w, 'p.getCurrentToken() != token'):
w(('System.err.printf("<<Unexpected token: %s (expecting %s)>>\\n", '
'tokenName(p.getCurrentToken()), tokenName(token));'))
w('throw new {}Exception();', model_name)
with java.Method(w,
'\nprivate',
'String',
'eatName', [('JsonParser', 'p')],
throws=['IOException']):
w('expectToken(p, JsonToken.FIELD_NAME);')
w('String name = p.getCurrentName();')
w('p.nextToken();')
w('return name;')
with java.Method(w, '\nprivate', 'String', 'tokenName',
[('JsonToken', 'token')]):
with java.If(w, 'token == null'):
w('return "null";')
with java.Switch(w, 'token'):
for tok in (
'END_ARRAY END_OBJECT FIELD_NAME NOT_AVAILABLE START_ARRAY '
'START_OBJECT VALUE_EMBEDDED_OBJECT VALUE_FALSE VALUE_NULL '
'VALUE_NUMBER_FLOAT VALUE_NUMBER_INT VALUE_STRING VALUE_TRUE'
).split():
w('case {0}: return "{0}";', tok)
w('return "";')
# TODO: refactor into base class
# TODO: replace recursion with depth counter
with java.Method(w,
'\nprivate',
'void',
'skipJson', [('JsonParser', 'p')],
throws=['IOException']):
w('JsonToken tok = p.getCurrentToken();')
w('p.nextToken();')
with java.Switch(w, 'tok'):
for tok in (
'END_ARRAY END_OBJECT FIELD_NAME NOT_AVAILABLE '
'VALUE_EMBEDDED_OBJECT VALUE_FALSE VALUE_NULL '
'VALUE_NUMBER_FLOAT VALUE_NUMBER_INT VALUE_STRING VALUE_TRUE'
).split():
w('case {}: break;', tok)
with java.Case(w, 'START_ARRAY'):
with java.While(
w, 'p.getCurrentToken() != JsonToken.END_ARRAY'):
w('skipJson(p);')
w('p.nextToken();')
w('break;')
with java.Case(w, 'START_OBJECT'):
with java.While(
w, 'p.getCurrentToken() != JsonToken.END_OBJECT'):
w('p.nextToken();')
w('skipJson(p);')
w('p.nextToken();')
w('break;')
# TODO: Is permissive dateTimeParser OK for date types?
w('\nprivate final DateTimeFormatter iso8601DateTime = '
'ISODateTimeFormat.dateTimeParser();')
w()
def serializer(context):
(app, module, package, model_class, write_file, _, _) = context
facade = bool(context.wrapped_model)
w = writer.Writer('java')
java.Package(w, package)
java.StandardImports(w)
java.Import(w, 'java.text.ParseException')
w.head()
java.Import(w, 'javax.xml.stream.XMLStreamException')
java.Import(w, 'javax.xml.stream.XMLStreamWriter')
w.head()
java.Import(w, 'org.joda.time.format.DateTimeFormatter')
java.Import(w, 'org.joda.time.format.ISODateTimeFormat')
if facade:
model_name = syslx.fmt_app_name(context.wrapped_model.name)
modelpkg = syslx.View(context.wrapped_model.attrs)['package'].s
w.head()
java.Import(w, modelpkg + '.*')
else:
modelpkg = package
with java.Class(w,
'\n{}XmlSerializer'.format(model_class),
write_file,
package=package):
with java.Method(w,
'\npublic',
'void',
'serialize',
[(model_class, 'facade' if facade else 'model'),
('XMLStreamWriter', 'xsw')],
throws=['XMLStreamException']):
if facade:
w('{} model = facade.getModel();', model_name)
w('xsw.writeStartElement("{}");', model_class)
for (tname, ft, t) in syslx.sorted_types(context):
if t.WhichOneof('type') == 'relation':
w('serialize(model.get{0}Table(), xsw, "{0}");', tname)
w('xsw.writeEndElement();')
for (tname, ft, t) in syslx.sorted_types(context):
java.SeparatorComment(w)
if t.WhichOneof('type') in ['relation', 'tuple']:
with java.Method(w,
'\npublic',
'void',
'serialize',
[(modelpkg + '.' + tname + '.View', 'view'),
('XMLStreamWriter', 'xsw'),
('String', 'tag')],
throws=['XMLStreamException']):
with java.If(w, 'view == null || view.isEmpty()'):
w('return;')
if t.WhichOneof('type') == 'relation':
w('xsw.writeStartElement("{}List");', tname)
order = [
o.s for o in syslx.View(t.attrs)['xml_order'].a.elt
]
if order:
order_logic = []
for o in order:
order_logic.append(
' i = io.sysl.ExprHelper.doCompare'
'(a.get{0}(), b.get{0}());\n'
' if (i != 0) return i;\n'.format(
java.CamelCase(o)))
order_by = (
'.orderBy(\n'
' new java.util.Comparator<{0}> () {{\n'
' @Override\n'
' public int compare({0} a, {0} b) {{\n'
' int i;\n'
'{1}'
' return 0;\n'
' }}\n'
' }})\n').format(tname, ''.join(order_logic))
else:
order_by = ''
with java.For(w, '{} item : view{}',
modelpkg + '.' + tname, order_by):
w('serialize(item, xsw, tag);', tname)
if t.WhichOneof('type') == 'relation':
w('xsw.writeEndElement();')
with java.Method(w,
'\npublic',
'void',
'serialize',
[(modelpkg + '.' + tname, 'entity'),
('XMLStreamWriter', 'xsw')],
throws=['XMLStreamException']):
w('serialize(entity, xsw, "{}");', tname)
with java.Method(w,
'\npublic',
'void',
'serialize',
[(modelpkg + '.' + tname, 'entity'),
('XMLStreamWriter', 'xsw'),
('String', 'tag')],
throws=['XMLStreamException']):
with java.If(w, 'entity == null'):
w('return;')
w('xsw.writeStartElement(tag);', tname)
for wantAttrs in [True, False]:
for (fname, f) in datamodel.sorted_fields(t):
jfname = java.name(fname)
method = java.CamelCase(jfname)
tref = datamodel.typeref(f, module)
type_ = tref[2]
if not type_:
continue
extra = ''
which_type = type_.WhichOneof('type')
if which_type == 'primitive':
extra = XML_GEN_MAP[type_.primitive]
if type_.primitive == type_.DECIMAL:
for c in type_.constraint:
if c.scale:
access = 'round(entity.get{}(), {})'.format(
method, c.scale)
break
else:
access = 'round(entity.get{}(), 0)'.format(
method)
else:
access = 'entity.get{}()'.format(method)
elif which_type == 'enum':
access = 'entity.get{}().getValue()'.format(
method)
elif which_type == 'tuple':
access = 'entity.get{}()'.format(method)
else:
raise RuntimeError(
'Unexpected field type for XML export: ' +
which_type)
if wantAttrs == ('xml_attribute'
in syslx.patterns(f.attrs)):
if wantAttrs:
w('serializeAttr("{}", {}{}, xsw);',
jfname, access, extra)
else:
# TODO: Why is 'index' bad? (NB: This was a debug hook, but the author forgot why.)
assert jfname != 'index'
w('serializeField("{}", {}{}, xsw);',
jfname, access, extra)
w('xsw.writeEndElement();')
with java.Method(w,
'\npublic',
'void',
'serializeField',
[('String', 'fieldname'),
(modelpkg + '.' + tname + '.View', 'view'),
('XMLStreamWriter', 'xsw')],
throws=['XMLStreamException']):
with java.If(w, 'view != null && !view.isEmpty()'):
w('serialize(view, xsw, fieldname);')
with java.Method(w,
'\npublic',
'void',
'serializeField',
[('String', 'fieldname'),
(modelpkg + '.' + tname, 'entity'),
('XMLStreamWriter', 'xsw')],
throws=['XMLStreamException']):
with java.If(w, 'entity != null'):
w('serialize(entity, xsw, fieldname);')
def serialize(t, access, extra_args=None):
with java.Method(
w,
'\nprivate',
'void',
'serialize',
([(t, 'value')] +
(extra_args or []) + [('XMLStreamWriter', 'xsw')]),
throws=['XMLStreamException']):
w('xsw.writeCharacters({});', access)
serialize('String', 'value')
serialize('Boolean', 'value.toString()')
serialize('Integer', 'value.toString()')
serialize('Double', 'value.toString()')
serialize('BigDecimal', 'value.toString()')
serialize('UUID', 'value.toString()')
serialize('DateTime', 'fmt.print(value)',
[('DateTimeFormatter', 'fmt')])
serialize('LocalDate', 'iso8601Date.print(value)')
def serializeField(t, access, extra_args=None):
with java.Method(
w,
'\nprivate',
'void',
'serializeField',
([('String', 'fieldname'), (t, 'value')] +
(extra_args or []) + [('XMLStreamWriter', 'xsw')]),
throws=['XMLStreamException']):
with java.If(w, 'value != null'):
w('xsw.writeStartElement(fieldname);')
w('serialize(value{}, xsw);',
''.join(', ' + arg for (_, arg) in extra_args or []))
w('xsw.writeEndElement();')
with java.Method(
w,
'\nprivate',
'void',
'serializeAttr',
([('String', 'fieldname'), (t, 'value')] +
(extra_args or []) + [('XMLStreamWriter', 'xsw')]),
throws=['XMLStreamException']):
with java.If(w, 'value != null'):
w('xsw.writeAttribute(fieldname, {});', access)
serializeField('String', 'value')
serializeField('Boolean', 'value.toString()')
serializeField('Integer', 'value.toString()')
serializeField('Double', 'value.toString()')
serializeField('BigDecimal', 'value.toString()')
serializeField('UUID', 'value.toString()')
serializeField('DateTime', 'fmt.print(value)',
[('DateTimeFormatter', 'fmt')])
serializeField('LocalDate', 'iso8601Date.print(value)')
with java.Method(w, '\nprivate final', 'BigDecimal', 'round',
[('BigDecimal', 'd'), ('int', 'scale')]):
w('return d == null ? d : '
'd.setScale(scale, java.math.RoundingMode.HALF_UP);')
w('\nprivate final DateTimeFormatter iso8601Date = '
'ISODateTimeFormat.date();')
w('private final DateTimeFormatter iso8601DateTime = '
'ISODateTimeFormat.dateTime();')
def deserializer(context):
(app, module, package, model_class, write_file, _, _) = context
facade = bool(context.wrapped_model)
w = writer.Writer('java')
java.Package(w, package)
java.StandardImports(w)
java.Import(w, 'javax.xml.stream.XMLStreamConstants')
java.Import(w, 'javax.xml.stream.XMLStreamException')
java.Import(w, 'javax.xml.stream.XMLStreamReader')
w.head()
java.Import(w, 'java.text.ParseException')
w.head()
java.Import(w, 'org.joda.time.format.DateTimeFormatter')
java.Import(w, 'org.joda.time.format.ISODateTimeFormat')
if facade:
model_name = syslx.fmt_app_name(context.wrapped_model.name)
modelpkg = syslx.View(context.wrapped_model.attrs)['package'].s
w.head()
java.Import(w, modelpkg + '.*')
else:
model_name = model_class
modelpkg = package
with java.Class(w,
'\n{}XmlDeserializer'.format(model_class),
write_file,
package=package):
with java.Method(
w,
'public',
'void',
'deserialize', [(model_class, 'facade' if facade else 'model'),
('XMLStreamReader', 'xsr')],
throws=[model_name + 'Exception', 'XMLStreamException']):
if facade:
w('{} model = facade.getModel();', model_name)
w('expect(XMLStreamConstants.START_ELEMENT, xsr.next());')
with java.While(w,
'xsr.next() == XMLStreamConstants.START_ELEMENT'):
with java.Switch(w, 'xsr.getLocalName()'):
for (tname, ft, t) in syslx.sorted_types(context):
if t.HasField('relation'):
w(
'case "{0}List": deserialize(model.get{0}Table(), xsr); break;',
tname)
w(
'case "{0}": deserializeOne(model.get{0}Table(), xsr); break;',
tname)
w('default: skipElement(xsr);')
w('expect(XMLStreamConstants.END_ELEMENT, xsr.getEventType());')
for (tname, ft, t) in syslx.sorted_types(context):
if not t.HasField('relation'):
continue
pkey = datamodel.primary_key_params(t, context.module)
pkey_fields = {f for (_, f, _) in pkey}
fkeys = {
java.name(fname): type_info
for (fname, _,
type_info) in datamodel.foreign_keys(t, context.module)
}
private_setters = pkey_fields | set(fkeys.iterkeys())
with java.Method(w,
'\nprivate',
'void',
'deserialize',
[(modelpkg + '.' + tname + '.Table', 'table'),
('XMLStreamReader', 'xsr')],
throws=['XMLStreamException']):
with java.While(
w, 'xsr.next() == XMLStreamConstants.START_ELEMENT'):
w('deserializeOne(table, xsr);')
w('expect(XMLStreamConstants.END_ELEMENT, xsr.getEventType());'
)
with java.Method(w,
'\nprivate',
'void',
'deserializeOne',
[(modelpkg + '.' + tname + '.Table', 'table'),
('XMLStreamReader', 'xsr')],
throws=['XMLStreamException']):
w('{0} entity = {0}._PRIVATE_new(table.model());',
modelpkg + '.' + tname)
with java.While(
w, 'xsr.next() == XMLStreamConstants.START_ELEMENT'):
with java.Switch(w, 'xsr.getLocalName()'):
for (fname, f) in datamodel.sorted_fields(t):
jfname = java.name(fname)
(typename, _, type_) = datamodel.typeref(f, module)
extra = '{}'
which_type = type_.WhichOneof('type')
if which_type == 'primitive':
xmltype = XML_PARSE_MAP[type_.primitive]
if isinstance(xmltype, tuple):
(xmltype, extra) = xmltype
elif which_type == 'enum':
xmltype = 'IntValue'
extra = typename + '.from({})'
else:
raise RuntimeError(
'Unexpected field type for XML export: ' +
which_type)
private = '_PRIVATE_' if jfname in private_setters else ''
if type_.primitive in [
sysl_pb2.Type.DATE, sysl_pb2.Type.DATETIME
]:
w(
'case "{}": entity.{}set{}(read{}(xsr, {})); break;',
jfname, private, java.CamelCase(jfname),
typename, extra)
else:
w(
'case "{}": entity.{}set{}(read{}(xsr)); break;',
jfname, private, java.CamelCase(jfname),
typename)
w('default: skipField(xsr);')
w('table.insert(entity);')
w('expect(XMLStreamConstants.END_ELEMENT, xsr.getEventType());'
)
with java.Method(w, '\nprivate', 'void', 'expect',
[('int', 'expected'), ('int', 'got')]):
with java.If(w, 'got != expected'):
w('System.err.printf(\v'
'"<<Unexpected token: %s (expecting %s)>>\\n", \v'
'tokenName(got), tokenName(expected));')
w('throw new {}Exception();', model_name)
with java.Method(w, '\nprivate', 'String', 'tokenName',
[('int', 'token')]):
with java.Switch(w, 'token'):
for tok in (
'ATTRIBUTE CDATA CHARACTERS COMMENT DTD END_DOCUMENT '
'END_ELEMENT ENTITY_DECLARATION ENTITY_REFERENCE NAMESPACE '
'NOTATION_DECLARATION PROCESSING_INSTRUCTION SPACE START_DOCUMENT '
'START_ELEMENT'.split()):
w('case XMLStreamConstants.{0}: return "{0}";', tok)
w('return new Integer(token).toString();')
def read(t, access, extra_args=None):
with java.Method(w,
'\nprivate',
t,
'read' + t, [('XMLStreamReader', 'xsr')],
throws=['XMLStreamException']):
with java.If(w, '!getCharacters(xsr)'):
w('return null;')
w('{} result = {};', t, access)
w('expect(XMLStreamConstants.END_ELEMENT, xsr.next());')
w('return result;')
read('String', 'xsr.getText()')
read('Boolean', 'Boolean.parseBoolean(xsr.getText())')
read('Integer', 'Integer.parseInt(xsr.getText())')
read('Double', 'Double.parseDouble(xsr.getText())')
read('BigDecimal', 'new BigDecimal(xsr.getText())')
read('UUID', 'UUID.fromString(xsr.getText())')
with java.Method(w,
'\nprivate',
'DateTime',
'readDateTime', [('XMLStreamReader', 'xsr'),
('DateTimeFormatter', 'fmt')],
throws=['XMLStreamException']):
with java.If(w, '!getCharacters(xsr)'):
w('return null;')
w('DateTime result = fmt.parseDateTime(xsr.getText());')
w('expect(XMLStreamConstants.END_ELEMENT, xsr.next());')
w('return result;')
with java.Method(w,
'\nprivate',
'LocalDate',
'readLocalDate', [('XMLStreamReader', 'xsr'),
('DateTimeFormatter', 'fmt')],
throws=['XMLStreamException']):
with java.If(w, '!getCharacters(xsr)'):
w('return null;')
w('LocalDate result = fmt.parseLocalDate(xsr.getText());')
w('expect(XMLStreamConstants.END_ELEMENT, xsr.next());')
w('return result;')
with java.Method(w,
'\nprivate',
'void',
'skipField', [('XMLStreamReader', 'xsr')],
throws=['XMLStreamException']):
with java.If(w, 'getCharacters(xsr)'):
w('expect(XMLStreamConstants.END_ELEMENT, xsr.next());')
with java.Method(w,
'\nprivate',
'boolean',
'getCharacters', [('XMLStreamReader', 'xsr')],
throws=['XMLStreamException']):
w('int tok = xsr.next();')
with java.If(w, 'tok == XMLStreamConstants.END_ELEMENT'):
w('return false;')
w('expect(XMLStreamConstants.CHARACTERS, tok);')
w('return true;')
with java.Method(w,
'\nprivate',
'void',
'skipElement', [('XMLStreamReader', 'xsr')],
throws=['XMLStreamException']):
with java.While(w, 'xsr.next() != XMLStreamConstants.END_ELEMENT'):
with java.If(
w,
'xsr.getEventType() == XMLStreamConstants.START_ELEMENT'
):
w('skipElement(xsr);')
# TODO: Is permissive dateTimeParser OK for date types?
w('\nprivate final DateTimeFormatter iso8601DateTime = '
'ISODateTimeFormat.dateTimeParser();')
w()