content: /*
   * Copyright 2024-2025 the original author or authors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      https://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.alibaba.cloud.ai.graph.action;
  
  import com.alibaba.cloud.ai.graph.OverAllState;
  
  import java.util.Optional;
  
  /**
   * Defines a contract for actions that can interrupt the execution of a graph.
   *
   */
  public interface InterruptableAction {
  
  	/**
  	 * Determines whether the graph execution should be interrupted at the current node.
  	 * @param nodeId The identifier of the current node being processed.
  	 * @param state The current state of the agent.
  	 * @return An {@link Optional} containing {@link InterruptionMetadata} if the
  	 * execution should be interrupted. Returns an empty {@link Optional} to continue
  	 * execution.
  	 */
  	Optional<InterruptionMetadata> interrupt(String nodeId, OverAllState state);
  
  }
  