refactor: move workflow package to dify_graph (#32844)

api/dify_graph/nodes/end/end_node.py

@@ -0,0 +1,47 @@
+from dify_graph.enums import NodeExecutionType, NodeType, WorkflowNodeExecutionStatus
+from dify_graph.node_events import NodeRunResult
+from dify_graph.nodes.base.node import Node
+from dify_graph.nodes.base.template import Template
+from dify_graph.nodes.end.entities import EndNodeData
+
+
+class EndNode(Node[EndNodeData]):
+    node_type = NodeType.END
+    execution_type = NodeExecutionType.RESPONSE
+
+    @classmethod
+    def version(cls) -> str:
+        return "1"
+
+    def _run(self) -> NodeRunResult:
+        """
+        Run node - collect all outputs at once.
+
+        This method runs after streaming is complete (if streaming was enabled).
+        It collects all output variables and returns them.
+        """
+        output_variables = self.node_data.outputs
+
+        outputs = {}
+        for variable_selector in output_variables:
+            variable = self.graph_runtime_state.variable_pool.get(variable_selector.value_selector)
+            value = variable.to_object() if variable is not None else None
+            outputs[variable_selector.variable] = value
+
+        return NodeRunResult(
+            status=WorkflowNodeExecutionStatus.SUCCEEDED,
+            inputs=outputs,
+            outputs=outputs,
+        )
+
+    def get_streaming_template(self) -> Template:
+        """
+        Get the template for streaming.
+
+        Returns:
+            Template instance for this End node
+        """
+        outputs_config = [
+            {"variable": output.variable, "value_selector": output.value_selector} for output in self.node_data.outputs
+        ]
+        return Template.from_end_outputs(outputs_config)