77 lines
3.4 KiB
Python
77 lines
3.4 KiB
Python
from state.base import State
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from core.element import Element, String
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class Bottom:
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def __init__(self, state: State):
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self.state = state
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def create_model(self, name: String) -> Element:
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bottom = self.state.create_nodevalue(name.value)
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self.state.create_dict(bottom, "Model", self.state.create_node())
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return Element(id=bottom)
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def add_node(self, model: Element, name: String):
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model_root = self.state.read_dict(model.id, "Model")
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# create model element
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element = self.state.create_node()
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# connect to model root
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self.state.create_dict(model_root, name.value, element)
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# confirm that element has been added to the model
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element = self.state.read_dict(model_root, name.value)
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if element is None:
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self.state.delete_node(element)
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print(f"Warning: Invalid name {name.value}, element not created.")
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return
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def add_value(self, model: Element, name: String, value: Element):
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model_root = self.state.read_dict(model.id, "Model")
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# create model element
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element = self.state.create_nodevalue(value.value)
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if element is None:
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print("Warning: Invalid value, value node not created.")
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return
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# connect to model root
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self.state.create_dict(model_root, name.value, element)
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# confirm that element has been added to the model
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element_found = self.state.read_dict(model_root, name.value)
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if element_found is None:
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self.state.delete_node(element)
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print(f"Warning: Invalid name {name.value}, element not created.")
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return
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def add_edge(self, model: Element, name: String, source: String, target: String):
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model_root = self.state.read_dict(model.id, "Model")
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source_element = self.state.read_dict(model_root, source.value)
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if source_element is None:
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print(f"Warning: Unknown source element {source.value}, edge not created.")
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return
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target_element = self.state.read_dict(model_root, target.value)
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if target_element is None:
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print(f"Warning: Unknown target element {target.value}, edge not created.")
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return
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# create model element
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element = self.state.create_edge(source_element, target_element)
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# connect to model root
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self.state.create_dict(model_root, name.value, element)
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# confirm that element has been added to the model
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element = self.state.read_dict(model_root, name.value)
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if element is None:
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self.state.delete_edge(element)
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print(f"Warning: Invalid name {name.value}, element not created.")
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def get_element(self, model: Element, name: String) -> Element:
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model_root = self.state.read_dict(model.id, "Model")
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element = self.state.read_dict(model_root, name.value)
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if element is None:
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print(f"Warning: Unknown element {name.value}.")
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return Element()
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else:
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return Element(id=element, value=self.state.read_value(element))
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def delete_element(self, model: Element, name: String):
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model_root = self.state.read_dict(model.id, "Model")
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element = self.state.read_dict(model_root, name.value)
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# could be both a node or an edge
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self.state.delete_node(element)
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self.state.delete_edge(element)
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