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.agent.flow.node;
  
  import java.util.concurrent.CompletableFuture;
  
  import com.alibaba.cloud.ai.graph.OverAllState;
  import com.alibaba.cloud.ai.graph.action.AsyncEdgeAction;
  
  /**
   * An async edge action that evaluates conditions to determine routing paths. This class
   * reads the condition result from the state and returns the appropriate route.
   */
  public class ConditionEvaluatorAction implements AsyncEdgeAction {
  
  	private static final String CONDITION_KEY = "_condition_result";
  
  	@Override
  	public CompletableFuture<String> apply(OverAllState state) {
  		CompletableFuture<String> result = new CompletableFuture<>();
  
  		try {
  			// Get the condition result from the state
  			String conditionResult = state.value(CONDITION_KEY, "default");
  			result.complete(conditionResult);
  		}
  		catch (Exception e) {
  			result.completeExceptionally(e);
  		}
  
  		return result;
  	}
  
  }
  