content: /*
   * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
   *
   * 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
   *
   *     http://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 org.activiti.engine.impl.el;
  
  import org.activiti.engine.ActivitiException;
  import org.activiti.engine.delegate.DelegateExecution;
  import org.activiti.engine.delegate.Expression;
  import org.activiti.engine.impl.Condition;
  
  /**
   * {@link Condition} that resolves an UEL expression at runtime.
   *
  
  
   */
  public class UelExpressionCondition implements Condition {
  
      protected Expression expression;
  
      public UelExpressionCondition(Expression expression) {
          this.expression = expression;
      }
  
      public boolean evaluate(String sequenceFlowId, DelegateExecution execution) {
          Object result = expression.getValue(execution);
  
          if (result == null) {
              throw new ActivitiException(
                  "condition expression returns null (sequenceFlowId: " +
                  sequenceFlowId +
                  " execution: " +
                  execution +
                  ")"
              );
          }
          if (!(result instanceof Boolean)) {
              throw new ActivitiException(
                  "condition expression returns non-Boolean (sequenceFlowId: " +
                  sequenceFlowId +
                  " execution: " +
                  execution +
                  "): " +
                  result +
                  " (" +
                  result.getClass().getName() +
                  ")"
              );
          }
          return (Boolean) result;
      }
  }
  