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.spring.process.variable.types;
  
  import java.util.List;
  import java.util.Objects;
  import java.util.regex.Pattern;
  import org.activiti.engine.ActivitiException;
  
  /**
   * Base variable type for types as defined in extension json files. Used to validate variables against definition.
   */
  public abstract class VariableType {
  
      private static final Pattern EXPRESSION_PATTERN = Pattern.compile("^\\$\\{(.|\\n)*[\\}]$");
      private String name;
  
      public String getName() {
          return name;
      }
  
      public void setName(String name) {
          this.name = name;
      }
  
      public abstract void validate(Object var, List<ActivitiException> errors);
  
      public Object parseFromValue(Object value) throws ActivitiException {
          return value;
      }
  
      protected boolean isExpression(Object var) {
          return (
              Objects.nonNull(var) &&
              var.getClass().isAssignableFrom(String.class) &&
              EXPRESSION_PATTERN.matcher((CharSequence) var).matches()
          );
      }
  }
  