155 lines
6.0 KiB
Python
155 lines
6.0 KiB
Python
from .database import *
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from .s0_base import is_node, is_link
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SCADA_TYPE_PRESSURE = 'PRESSURE'
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SCADA_TYPE_DEMAND = 'DEMAND'
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SCADA_TYPE_QUALITY = 'QUALITY'
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SCADA_TYPE_LEVEL = 'LEVEL'
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SCADA_TYPE_FLOW = 'FLOW'
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SCADA_ELEMENT_STATUS_OFFLINE = 'OFF'
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SCADA_ELEMENT_STATUS_ONLINE = 'ON'
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def _check_model_id(name: str, cs: ChangeSet) -> bool:
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if 'model_id' not in cs.operations[0]:
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return True
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if cs.operations[0]['model_id'] == None:
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return True
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model_id = cs.operations[0]['model_id']
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return is_node(name, model_id) or is_link(name, model_id)
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def get_scada_elements(name: str) -> list[str]:
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result : list[str] = []
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rows = read_all(name, 'select id from scada_element order by id')
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for row in rows:
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result.append(str(row['id']))
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return result
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def get_scada_element_schema(name: str) -> dict[str, dict[str, Any]]:
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return { 'id' : {'type': 'str' , 'optional': False , 'readonly': True },
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'x' : {'type': 'float' , 'optional': False , 'readonly': False},
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'y' : {'type': 'float' , 'optional': False , 'readonly': False},
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'device_id' : {'type': 'str' , 'optional': True , 'readonly': False},
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'model_id' : {'type': 'str' , 'optional': True , 'readonly': False},
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'status' : {'type': 'str' , 'optional': True , 'readonly': False} }
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def get_scada_element(name: str, id: str) -> dict[str, Any]:
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sm = try_read(name, f"select * from scada_element where id = '{id}'")
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if sm == None:
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return {}
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d = {}
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d['id'] = str(sm['id'])
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d['x'] = float(sm['x'])
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d['y'] = float(sm['y'])
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d['device_id'] = str(sm['device_id']) if sm['device_id'] != None else None
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d['model_id'] = str(sm['model_id']) if sm['model_id'] != None else None
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d['status'] = str(sm['status'])
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return d
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class ScadaModel(object):
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def __init__(self, input: dict[str, Any]) -> None:
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self.type = 'scada_element'
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self.id = str(input['id'])
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self.x = float(input['x'])
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self.y = float(input['y'])
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self.device_id = str(input['device_id']) if 'device_id' in input and input['device_id'] != None else None
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self.model_id = str(input['model_id']) if 'model_id' in input and input['model_id'] != None else None
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self.status = str(input['status']) if 'status' in input and input['status'] != None else SCADA_ELEMENT_STATUS_OFFLINE
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self.f_type = f"'{self.type}'"
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self.f_id = f"'{self.id}'"
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self.f_x = self.x
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self.f_y = self.y
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self.f_device_id = f"'{self.device_id}'" if self.device_id != None else 'null'
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self.f_model_id = f"'{self.model_id}'" if self.model_id != None else 'null'
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self.f_status = f"'{self.status}'"
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def as_dict(self) -> dict[str, Any]:
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return { 'type': self.type, 'id': self.id, 'x': self.x, 'y': self.y, 'device_id': self.device_id, 'model_id': self.model_id, 'status': self.status }
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def as_id_dict(self) -> dict[str, Any]:
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return { 'type': self.type, 'id': self.id }
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def set_scada_element_cmd(name: str, cs: ChangeSet) -> DbChangeSet:
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old = ScadaModel(get_scada_element(name, cs.operations[0]['id']))
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raw_new = get_scada_element(name, cs.operations[0]['id'])
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new_dict = cs.operations[0]
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schema = get_scada_element_schema(name)
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for key, value in schema.items():
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if key in new_dict and not value['readonly']:
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raw_new[key] = new_dict[key]
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new = ScadaModel(raw_new)
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redo_sql = f"update scada_element set x = {new.f_x}, y = {new.f_y}, device_id = {new.f_device_id}, model_id = {new.f_model_id}, status = {new.f_status} where id = {new.f_id};"
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undo_sql = f"update scada_element set x = {old.f_x}, y = {old.f_y}, device_id = {old.f_device_id}, model_id = {old.f_model_id}, status = {old.f_status} where id = {old.f_id};"
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redo_cs = g_update_prefix | new.as_dict()
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undo_cs = g_update_prefix | old.as_dict()
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return DbChangeSet(redo_sql, undo_sql, [redo_cs], [undo_cs])
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def set_scada_element(name: str, cs: ChangeSet) -> ChangeSet:
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if get_scada_element(name, cs.operations[0]['id']) == {}:
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return ChangeSet()
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if _check_model_id(name, cs) == False:
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return ChangeSet()
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return execute_command(name, set_scada_element_cmd(name, cs))
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def add_scada_element_cmd(name: str, cs: ChangeSet) -> DbChangeSet:
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new = ScadaModel(cs.operations[0])
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redo_sql = f"insert into scada_element (id, x, y, device_id, model_id, status) values ({new.f_id}, {new.f_x}, {new.f_y}, {new.f_device_id}, {new.f_model_id}, {new.f_status});"
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undo_sql = f"delete from scada_element where id = {new.f_id};"
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redo_cs = g_add_prefix | new.as_dict()
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undo_cs = g_delete_prefix | new.as_id_dict()
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return DbChangeSet(redo_sql, undo_sql, [redo_cs], [undo_cs])
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def add_scada_element(name: str, cs: ChangeSet) -> ChangeSet:
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if get_scada_element(name, cs.operations[0]['id']) != {}:
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return ChangeSet()
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if _check_model_id(name, cs) == False:
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return ChangeSet()
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return execute_command(name, add_scada_element_cmd(name, cs))
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def delete_scada_element_cmd(name: str, cs: ChangeSet) -> DbChangeSet:
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old = ScadaModel(get_scada_element(name, cs.operations[0]['id']))
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redo_sql = f"delete from scada_element where id = {old.f_id};"
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undo_sql = f"insert into scada_element (id, x, y, device_id, model_id, status) values ({old.f_id}, {old.f_x}, {old.f_y}, {old.f_device_id}, {old.f_model_id}, {old.f_status});"
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redo_cs = g_delete_prefix | old.as_id_dict()
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undo_cs = g_add_prefix | old.as_dict()
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return DbChangeSet(redo_sql, undo_sql, [redo_cs], [undo_cs])
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def delete_scada_element(name: str, cs: ChangeSet) -> ChangeSet:
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if get_scada_element(name, cs.operations[0]['id']) == {}:
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return ChangeSet()
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return execute_command(name, delete_scada_element_cmd(name, cs))
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def clean_scada_element_cmd(name: str) -> ChangeSet:
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cs = ChangeSet()
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rows = read_all(name, 'select id from scada_element acs')
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for row in rows:
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cs.delete({ 'type': 'scada_element', 'id': row['id'] })
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return cs
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