def _getObject( self, t, key, request, response, depth ): queue = [ ( t, depth, 0 ) ] while len(queue) > 0: t, depth, ignore = queue.pop(0) reduce_depth_by = 1 if ignore == 0: if 'get' in t.handlers: reduce_depth_by = t.handlers['get'].depth + 1 t.handlers['get']( self, key, response, request, reduce_depth_by if depth is None else min( depth, reduce_depth_by ) ) elif schema.is_a( t.schema_type, schema.Container ): response[t.schema_type][key] = request[t.schema_type][key] elif schema.is_a( t.schema_type, schema.Object ): raise Error( 405, 'Object at "%s" does not have a get() method associated' % t.schema_type._url.replace( '%s', '*' ) ) if depth is not None: depth = depth - reduce_depth_by ignore = reduce_depth_by if t.children and depth is None or depth >= 0: if schema.is_a( t.schema_type, schema.Container ): queue.append( ( t.children, depth, max( 0, ignore-1 ) ) ) else: for child in t.children.itervalues(): queue.append( ( child, depth, max( 0, ignore-1 ) ) )
def _getAffected(self, t, key, request, response):
queue = [(t, 0)]
while len(queue) > 0:
t, ignore = queue.pop(0)
if ignore == 0:
ignore = 1
if schema.is_a(t.schema_type, schema.Object):
all_of_type = request[t.schema_type]
if key not in all_of_type: continue
all_of_type = all_of_type[key]
if 'get' not in t.handlers:
raise Error(
405,
'Object at "%s" does not have a get() method associated'
% t.schema_type._url.replace('%s', '*'))
ignore = t.depth + 1
for k in all_of_type.iterkeys():
t.handlers['get'](self, k, response, request, None)
if t.children:
if schema.is_a(t.schema_type, schema.Container):
queue.append((t.children, ignore - 1))
else:
for child in t.children.itervalues():
queue.append((child, ignore - 1))
def _getObject(self, t, key, request, response, depth):
queue = [(t, depth, 0)]
while len(queue) > 0:
t, depth, ignore = queue.pop(0)
reduce_depth_by = 1
if ignore == 0:
if 'get' in t.handlers:
reduce_depth_by = t.handlers['get'].depth + 1
t.handlers['get'](self, key, response, request,
reduce_depth_by if depth is None else
min(depth, reduce_depth_by))
elif schema.is_a(t.schema_type, schema.Container):
response[t.schema_type][key] = request[t.schema_type][key]
elif schema.is_a(t.schema_type, schema.Object):
raise Error(
405,
'Object at "%s" does not have a get() method associated'
% t.schema_type._url.replace('%s', '*'))
if depth is not None:
depth = depth - reduce_depth_by
ignore = reduce_depth_by
if t.children and depth is None or depth >= 0:
if schema.is_a(t.schema_type, schema.Container):
queue.append((t.children, depth, max(0, ignore - 1)))
else:
for child in t.children.itervalues():
queue.append((child, depth, max(0, ignore - 1)))
def get(schema_type, depth=None, key_depth=0):
if depth is None:
depth = 1 if schema.is_a(schema_type, schema.Container) else 0
def wrapper(method):
return _SvcGetMethod(method,
schema_type,
depth=depth,
key_depth=key_depth)
return wrapper
def _getAffected( self, t, key, request, response ): queue = [ ( t, 0 ) ] while len(queue) > 0: t, ignore = queue.pop(0) if ignore==0: ignore = 1 if schema.is_a( t.schema_type, schema.Object ): all_of_type = request[t.schema_type] if key not in all_of_type: continue all_of_type = all_of_type[key] if 'get' not in t.handlers: raise Error( 405, 'Object at "%s" does not have a get() method associated' % t.schema_type._url.replace( '%s', '*' ) ) ignore = t.depth + 1 for k in all_of_type.iterkeys(): t.handlers['get']( self, k, response, request, None ) if t.children: if schema.is_a( t.schema_type, schema.Container ): queue.append( ( t.children, ignore-1 ) ) else: for child in t.children.itervalues(): queue.append( ( child, ignore-1 ) )
def _modifyObject(self, t, key, request, response, add):
queue = [(t.children, 0, True, True)] if add else [(t, 0, False,
False)]
while len(queue) > 0:
t, ignore, add, is_item = queue.pop(0)
all_of_type = request[t.schema_type]
if key not in all_of_type: continue
all_of_type = all_of_type.slice(key)
if ignore == 0:
ignore = 1
if add:
if 'create' in t.handlers:
ignore = t.handlers['create'].depth + 1
t.handlers['create'](
self, ((key + tuple(
(response.replaces[kpart]
if schema._is_fake_key(kpart) else kpart
for kpart in (k[:-1] if is_item else k))), v)
for k, v in all_of_type.iteritems()
if (schema._is_fake_key(k[-1])
if is_item else _is_new_key(k))),
response, request)
elif is_item or schema.is_a(t.schema_type, schema.Object):
raise Error(
405,
'%s at "%s" does not have a create() method associated'
% ('Item' if is_item else 'Object',
t.schema_type._url.replace('%s', '*')))
else:
if 'update' in t.handlers:
ignore = t.handlers['update'].depth + 1
t.handlers['update'](self, (
v for k, v in all_of_type.iteritems()
if not _is_new_key(k) and not _is_deleted_item(v)),
response, request)
elif schema.is_a(t.schema_type, schema.Container):
all_of_type = request[t.children.schema_type].slice(
key)
# Process deleted items immediately
all_deleted = [(k, _version_of(v))
for k, v in all_of_type.iteritems()
if _is_deleted_item(v)]
if len(all_deleted) > 0:
if 'delete' in t.children.handlers:
t.children.handlers['delete'](self,
all_deleted,
response,
request)
else:
raise Error(
405,
'Item at "%s" does not have a delete() method associated'
% t.children.schema_type._url.replace(
'%s', '*'))
# Add processing of added items to the queue
if not packet._is_empty(
(k for k in all_of_type.iterkeys()
if _is_new_key(k))):
queue.append((t.children, 0, True, True))
elif schema.is_a(t.schema_type, schema.Object):
raise Error(
405,
'Object at "%s" does not have an update() method associated'
% t.schema_type._url.replace('%s', '*'))
if t.children:
if schema.is_a(t.schema_type, schema.Container):
queue.append((t.children, ignore - 1, add, add))
else:
for child in t.children.itervalues():
queue.append((child, ignore - 1, add, False))
def __call__(self, verb, url, body=None):
url = urlparse.urlparse(url)
url_args = dict(
((name, val if len(val) > 1 else val[0])
for name, val in urlparse.parse_qs(url.query).iteritems()))
url = url.path[1:] if url.path[:1] == '/' else url.path
request = packet.Packet(self.schema)
if body is None:
body = {}
body[url] = {}
try:
request.deserialize(body, url_args=url_args)
t = self._url_tree
key = ()
is_item = False
for name in url.split('/'):
if schema.is_a(t.schema_type, schema.Container):
key = key + (schema._key_convert(
name, t.schema_type._schema['key']), )
t = t.children
is_item = True
else:
if t.children is None or name not in t.children:
return _wrapError(404,
'No handlers associated with ' + url)
t = t.children[name]
is_item = False
is_container = schema.is_a(t.schema_type, schema.Container)
except:
return _wrap500(sys.exc_info())
allow_verbs = set(('GET', 'PUT', 'POST', 'DELETE'))
if not is_item: allow_verbs.remove('DELETE')
if not is_container: allow_verbs.remove('POST')
if verb not in allow_verbs:
return _wrap405(verb + ' is not supported by ' + url, allow_verbs)
response = packet.Packet(self.schema)
need_rollback = False
try:
if verb == 'GET':
depth = url_args.get('depth', None)
self._getObject(t, key, request, response, depth
and int(depth))
elif verb == 'PUT':
self.begin(verb, url, request, response)
need_rollback = True
self._modifyObject(t, key, request, response, False)
need_rollback = False
self.commit(verb, url, request, response)
elif verb == 'DELETE':
self.begin(verb, url, request, response)
need_rollback = True
self._deleteObject(t, key, request, response)
need_rollback = False
self.commit(verb, url, request, response)
elif verb == 'POST':
self.begin(verb, url, request, response)
need_rollback = True
self._modifyObject(t, key, request, response, True)
need_rollback = False
self.commit(verb, url, request, response)
return _wrap200(response)
except Error as err:
if need_rollback: self.rollback(verb, url, request, response)
if err.status == 405:
allow_verbs.remove(verb)
return _wrap405(err.message, allow_verbs)
elif err.status == 409:
try:
response = packet.Packet(self.schema)
if verb == 'DELETE':
self._getObject(t, key, request, response, None)
else:
self._getAffected(t, key, request, response)
return _wrap409(err.message, response)
except:
return _wrap500(sys.exc_info())
else:
return _wrapError(err.status, err.message)
except:
if need_rollback: self.rollback(verb, url, request, response)
return _wrap500(sys.exc_info())
def get( schema_type, depth=None, key_depth=0 ): if depth is None: depth = 1 if schema.is_a( schema_type, schema.Container ) else 0 def wrapper( method ): return _SvcGetMethod( method, schema_type, depth = depth, key_depth = key_depth ) return wrapper
def _modifyObject( self, t, key, request, response, add ): queue = [ ( t.children, 0, True, True ) ] if add else [ ( t, 0, False, False ) ] while len(queue) > 0: t, ignore, add, is_item = queue.pop(0) all_of_type = request[t.schema_type] if key not in all_of_type: continue all_of_type = all_of_type.slice( key ) if ignore == 0: ignore = 1 if add: if 'create' in t.handlers: ignore = t.handlers['create'].depth + 1 t.handlers['create']( self, ( ( key + tuple( ( response.replaces[kpart] if schema._is_fake_key( kpart ) else kpart for kpart in ( k[:-1] if is_item else k ) ) ), v ) for k,v in all_of_type.iteritems() if ( schema._is_fake_key( k[-1] ) if is_item else _is_new_key( k ) ) ), response, request ) elif is_item or schema.is_a( t.schema_type, schema.Object ): raise Error( 405, '%s at "%s" does not have a create() method associated' % ( 'Item' if is_item else 'Object', t.schema_type._url.replace( '%s', '*' ) ) ) else: if 'update' in t.handlers: ignore = t.handlers['update'].depth + 1 t.handlers['update']( self, ( v for k,v in all_of_type.iteritems() if not _is_new_key( k ) and not _is_deleted_item( v ) ), response, request ) elif schema.is_a( t.schema_type, schema.Container ): all_of_type = request[t.children.schema_type].slice( key ) # Process deleted items immediately all_deleted = [ ( k, _version_of( v ) ) for k,v in all_of_type.iteritems() if _is_deleted_item( v ) ] if len( all_deleted ) > 0: if 'delete' in t.children.handlers: t.children.handlers['delete']( self, all_deleted, response, request ) else: raise Error( 405, 'Item at "%s" does not have a delete() method associated' % t.children.schema_type._url.replace( '%s', '*' ) ) # Add processing of added items to the queue if not packet._is_empty( ( k for k in all_of_type.iterkeys() if _is_new_key( k ) ) ): queue.append( ( t.children, 0, True, True ) ) elif schema.is_a( t.schema_type, schema.Object ): raise Error( 405, 'Object at "%s" does not have an update() method associated' % t.schema_type._url.replace( '%s', '*' ) ) if t.children: if schema.is_a( t.schema_type, schema.Container ): queue.append( ( t.children, ignore-1, add, add ) ) else: for child in t.children.itervalues(): queue.append( ( child, ignore-1, add, False ) )
def __call__( self, verb, url, body = None ):
url = urlparse.urlparse( url )
url_args = dict((
( name, val if len(val)>1 else val[0] )
for name,val in urlparse.parse_qs( url.query ).iteritems()
))
url = url.path[1:] if url.path[:1]=='/' else url.path
request = packet.Packet( self.schema )
if body is None:
body = {}
body[ url ] = {}
try:
request.deserialize( body, url_args = url_args )
t = self._url_tree
key = ()
is_item = False
for name in url.split( '/' ):
if schema.is_a( t.schema_type, schema.Container ):
key = key + ( schema._key_convert( name, t.schema_type._schema['key'] ), )
t = t.children
is_item = True
else:
if t.children is None or name not in t.children:
return _wrapError( 404, 'No handlers associated with ' + url )
t = t.children[name]
is_item = False
is_container = schema.is_a( t.schema_type, schema.Container )
except:
return _wrap500( sys.exc_info() )
allow_verbs = set(( 'GET', 'PUT', 'POST', 'DELETE' ))
if not is_item: allow_verbs.remove( 'DELETE' )
if not is_container: allow_verbs.remove( 'POST' )
if verb not in allow_verbs:
return _wrap405( verb + ' is not supported by ' + url, allow_verbs )
response = packet.Packet( self.schema )
need_rollback = False
try:
if verb=='GET':
depth = url_args.get( 'depth', None )
self._getObject( t, key, request, response, depth and int(depth) )
elif verb=='PUT':
self.begin( verb, url, request, response )
need_rollback = True
self._modifyObject( t, key, request, response, False )
need_rollback = False
self.commit( verb, url, request, response )
elif verb=='DELETE':
self.begin( verb, url, request, response )
need_rollback = True
self._deleteObject( t, key, request, response )
need_rollback = False
self.commit( verb, url, request, response )
elif verb=='POST':
self.begin( verb, url, request, response )
need_rollback = True
self._modifyObject( t, key, request, response, True )
need_rollback = False
self.commit( verb, url, request, response )
return _wrap200( response )
except Error as err:
if need_rollback: self.rollback( verb, url, request, response )
if err.status == 405:
allow_verbs.remove( verb )
return _wrap405( err.message, allow_verbs )
elif err.status == 409:
try:
response = packet.Packet( self.schema )
if verb=='DELETE': self._getObject( t, key, request, response, None )
else: self._getAffected( t, key, request, response )
return _wrap409( err.message, response )
except:
return _wrap500( sys.exc_info() )
else:
return _wrapError( err.status, err.message )
except:
if need_rollback: self.rollback( verb, url, request, response )
return _wrap500( sys.exc_info() )
