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.variable;
  
  import java.util.Arrays;
  import org.activiti.engine.impl.persistence.entity.VariableInstanceEntity;
  
  /**
   */
  public class DeserializedObject {
  
      protected SerializableType type;
      protected Object deserializedObject;
      protected byte[] originalBytes;
      protected VariableInstanceEntity variableInstanceEntity;
  
      public DeserializedObject(
          SerializableType type,
          Object deserializedObject,
          byte[] serializedBytes,
          VariableInstanceEntity variableInstanceEntity
      ) {
          this.type = type;
          this.deserializedObject = deserializedObject;
          this.originalBytes = serializedBytes;
          this.variableInstanceEntity = variableInstanceEntity;
      }
  
      public void verifyIfBytesOfSerializedObjectChanged() {
          // this first check verifies if the variable value was not overwritten with another object
          if (deserializedObject == variableInstanceEntity.getCachedValue() && !variableInstanceEntity.isDeleted()) {
              byte[] bytes = type.serialize(deserializedObject, variableInstanceEntity);
              if (!Arrays.equals(originalBytes, bytes)) {
                  // Add an additional check to prevent byte differences due to JDK changes etc
                  Object originalObject = type.deserialize(originalBytes, variableInstanceEntity);
                  byte[] refreshedOriginalBytes = type.serialize(originalObject, variableInstanceEntity);
  
                  if (!Arrays.equals(refreshedOriginalBytes, bytes)) {
                      variableInstanceEntity.setBytes(bytes);
                  }
              }
          }
      }
  }
  