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 jakarta.el.ELContext;
  import jakarta.el.ELException;
  import jakarta.el.ELResolver;
  import java.beans.FeatureDescriptor;
  import java.util.Iterator;
  import org.activiti.engine.impl.util.ReflectUtil;
  
  /**
   * A {@link ELResolver} for dynamic bean properties
   *
  
   */
  public class DynamicBeanPropertyELResolver extends ELResolver {
  
      protected Class<?> subject;
  
      protected String readMethodName;
  
      protected String writeMethodName;
  
      protected boolean readOnly;
  
      public DynamicBeanPropertyELResolver(
          boolean readOnly,
          Class<?> subject,
          String readMethodName,
          String writeMethodName
      ) {
          this.readOnly = readOnly;
          this.subject = subject;
          this.readMethodName = readMethodName;
          this.writeMethodName = writeMethodName;
      }
  
      public DynamicBeanPropertyELResolver(Class<?> subject, String readMethodName, String writeMethodName) {
          this(false, subject, readMethodName, writeMethodName);
      }
  
      @Override
      public Class<?> getCommonPropertyType(ELContext context, Object base) {
          if (this.subject.isInstance(base)) {
              return Object.class;
          } else {
              return null;
          }
      }
  
      @Override
      public Iterator<FeatureDescriptor> getFeatureDescriptors(ELContext context, Object base) {
          return null;
      }
  
      @Override
      public Class<?> getType(ELContext context, Object base, Object property) {
          if (base == null || this.getCommonPropertyType(context, base) == null) {
              return null;
          }
  
          context.setPropertyResolved(true);
          return Object.class;
      }
  
      @Override
      public Object getValue(ELContext context, Object base, Object property) {
          if (base == null || this.getCommonPropertyType(context, base) == null) {
              return null;
          }
  
          String propertyName = property.toString();
  
          try {
              Object value = ReflectUtil.invoke(base, this.readMethodName, new Object[] { propertyName });
              context.setPropertyResolved(true);
              return value;
          } catch (Exception e) {
              throw new ELException(e);
          }
      }
  
      @Override
      public boolean isReadOnly(ELContext context, Object base, Object property) {
          return this.readOnly;
      }
  
      @Override
      public void setValue(ELContext context, Object base, Object property, Object value) {
          if (base == null || this.getCommonPropertyType(context, base) == null) {
              return;
          }
  
          String propertyName = property.toString();
          try {
              ReflectUtil.invoke(base, this.writeMethodName, new Object[] { propertyName, value });
              context.setPropertyResolved(true);
          } catch (Exception e) {
              throw new ELException(e);
          }
      }
  }
  