def build_hierarchical_xsd():
def build_element(attr_fname, attr_f, is_set, is_attr):
jfname = java.name(attr_fname)
method = java.CamelCase(jfname)
type_ = datamodel.typeref(attr_f, context.module)[2]
which_type = type_.WhichOneof('type')
if which_type == 'primitive':
xsdtype = XSD_TYPE_MAP[type_.primitive]
elif which_type == 'enum':
xsdtype = 'xs:int'
elif which_type == 'tuple':
offset = -1
if is_set:
offset = -2
xsdtype = datamodel.typeref(
f, context.module)[0].split('.')[offset]
else:
raise RuntimeError('Unexpected field type for XSD '
'export: ' + which_type)
if is_attr:
xs('attribute/', name=jfname, type=xsdtype, use='optional')
else:
xs('element/', name=jfname, type=xsdtype, minOccurs=0)
# Top level element
with xs('element', name=context.model_class):
with xs('complexType'):
with xs('sequence', minOccurs=1, maxOccurs=1):
for (tname, ft, t) in syslx.sorted_types(context):
if 'xml_root' in syslx.patterns(t.attrs):
xs('element/', name=tname, type=tname, minOccurs=0)
break
w(xsd_separator)
for (tname, ft, t) in syslx.sorted_types(context):
with xs('complexType', name=tname):
with xs('all'):
for (fname, f) in sorted(t.tuple.attr_defs.iteritems()):
if not 'xml_attribute' in syslx.patterns(f.attrs):
if f.HasField('set'):
with xs('element', name=fname + 'List'):
with xs('complexType'):
with xs('sequence',
maxOccurs='unbounded'):
build_element(
fname, f, True, False)
else:
build_element(fname, f, False, False)
#attributes second
for (fname, f) in sorted(t.tuple.attr_defs.iteritems()):
if 'xml_attribute' in syslx.patterns(f.attrs):
build_element(fname, f, True, True)
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 = '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:
if jfname == 'index':
import pdb
pdb.set_trace()
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):
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())
if not t.HasField('relation'):
continue
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()
def build_relational_xsd():
# top level element contains all entities for
# relational schemas but will only contain the
# root entity for hierarchical
with xs('element', name=context.model_class):
with xs('complexType'):
with xs('sequence', minOccurs=1, maxOccurs=1):
# each "relation" is a list of things
for (tname, ft, t) in syslx.sorted_types(context):
if t.HasField('relation'):
xs('element/',
name=tname + 'List',
type=tname + 'List',
minOccurs=0)
# build keys and key refs
for (tname, ft, t) in syslx.sorted_types(context):
if t.HasField('relation'):
pkey = datamodel.primary_key_params(t, context.module)
pkey_fields = {f for (_, f, _) in pkey}
has_content = False
def xsd_key_header(msg):
w('{}', '<!-- ' + msg.center(55) + ' -->')
if pkey:
if not has_content:
has_content = True
w()
w(xsd_separator)
xsd_key_header(tname + ' keys')
with xs('key', name='key_' + tname):
xs('selector/',
xpath='./{0}List/{0}'.format(tname))
for f in sorted(pkey_fields):
xs('field/', xpath=f)
for (i, (fname, _, type_info)) in enumerate(
sorted(datamodel.foreign_keys(t, context.module))):
if not has_content:
has_content = True
w()
w(xsd_separator)
xsd_key_header(tname + ' keyrefs')
elif pkey and i == 0:
xsd_key_header('keyrefs')
fk_type = type_info.parent_path
fk_field = type_info.field
with xs('keyref',
name='keyref_{}_{}'.format(tname, fname),
refer='key_' + fk_type):
xs('selector/',
xpath='./{0}List/{0}'.format(tname))
xs('field/', xpath=fname)
if has_content:
w(xsd_separator)
w()
w()
# construct the entities
for (tname, ft, t) in syslx.sorted_types(context):
if t.HasField('relation'):
with xs('complexType', name=tname + 'List'):
with xs('sequence', maxOccurs='unbounded'):
with xs('element', name=tname):
with xs('complexType'):
with xs('all'):
for (fname, f) in sorted(
t.relation.attr_defs.iteritems()):
jfname = java.name(fname)
method = java.CamelCase(jfname)
type_ = datamodel.typeref(
f, context.module)[2]
which_type = type_.WhichOneof('type')
if which_type == 'primitive':
xsdtype = XSD_TYPE_MAP[
type_.primitive]
elif which_type == 'enum':
xsdtype = 'xs:int'
else:
raise RuntimeError(
'Unexpected field type for XSD '
'export: ' + which_type)
xs('element/',
name=jfname,
type=xsdtype,
minOccurs=0)
def build_xsd():
for (_, _, t) in syslx.sorted_types(context):
if t.HasField('relation'):
build_relational_xsd()
return
build_hierarchical_xsd()