/*
    *    Copyright 2009-2024 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 org.apache.ibatis.reflection.wrapper;
  
  import java.util.List;
  import java.util.Map;
  
  import org.apache.ibatis.reflection.MetaObject;
  import org.apache.ibatis.reflection.ReflectionException;
  import org.apache.ibatis.reflection.SystemMetaObject;
  import org.apache.ibatis.reflection.property.PropertyTokenizer;
  
  /**
   * @author Clinton Begin
   */
  public abstract class BaseWrapper implements ObjectWrapper {
  
    protected static final Object[] NO_ARGUMENTS = {};
    protected final MetaObject metaObject;
  
    protected BaseWrapper(MetaObject metaObject) {
      this.metaObject = metaObject;
    }
  
    protected Object resolveCollection(PropertyTokenizer prop, Object object) {
      if ("".equals(prop.getName())) {
        return object;
      }
      return metaObject.getValue(prop.getName());
    }
  
    protected Object getCollectionValue(PropertyTokenizer prop, Object collection) {
      if (collection == null) {
        throw new ReflectionException("Cannot get the value '" + prop.getIndexedName() + "' because the property '"
            + prop.getName() + "' is null.");
      }
      if (collection instanceof Map) {
        return ((Map) collection).get(prop.getIndex());
      }
      int i = Integer.parseInt(prop.getIndex());
      if (collection instanceof List) {
        return ((List) collection).get(i);
      } else if (collection instanceof Object[]) {
        return ((Object[]) collection)[i];
      } else if (collection instanceof char[]) {
        return ((char[]) collection)[i];
      } else if (collection instanceof boolean[]) {
        return ((boolean[]) collection)[i];
      } else if (collection instanceof byte[]) {
        return ((byte[]) collection)[i];
      } else if (collection instanceof double[]) {
        return ((double[]) collection)[i];
      } else if (collection instanceof float[]) {
        return ((float[]) collection)[i];
      } else if (collection instanceof int[]) {
        return ((int[]) collection)[i];
      } else if (collection instanceof long[]) {
        return ((long[]) collection)[i];
      } else if (collection instanceof short[]) {
        return ((short[]) collection)[i];
      } else {
        throw new ReflectionException("Cannot get the value '" + prop.getIndexedName() + "' because the property '"
            + prop.getName() + "' is not Map, List or Array.");
      }
    }
  
    protected void setCollectionValue(PropertyTokenizer prop, Object collection, Object value) {
      if (collection == null) {
        throw new ReflectionException("Cannot set the value '" + prop.getIndexedName() + "' because the property '"
            + prop.getName() + "' is null.");
      }
      if (collection instanceof Map) {
        ((Map) collection).put(prop.getIndex(), value);
      } else {
        int i = Integer.parseInt(prop.getIndex());
        if (collection instanceof List) {
          ((List) collection).set(i, value);
        } else if (collection instanceof Object[]) {
          ((Object[]) collection)[i] = value;
        } else if (collection instanceof char[]) {
          ((char[]) collection)[i] = (Character) value;
        } else if (collection instanceof boolean[]) {
          ((boolean[]) collection)[i] = (Boolean) value;
        } else if (collection instanceof byte[]) {
          ((byte[]) collection)[i] = (Byte) value;
        } else if (collection instanceof double[]) {
         ((double[]) collection)[i] = (Double) value;
       } else if (collection instanceof float[]) {
         ((float[]) collection)[i] = (Float) value;
       } else if (collection instanceof int[]) {
         ((int[]) collection)[i] = (Integer) value;
       } else if (collection instanceof long[]) {
         ((long[]) collection)[i] = (Long) value;
       } else if (collection instanceof short[]) {
         ((short[]) collection)[i] = (Short) value;
       } else {
         throw new ReflectionException("Cannot set the value '" + prop.getIndexedName() + "' because the property '"
             + prop.getName() + "' is not Map, List or Array.");
       }
     }
   }
 
   protected Object getChildValue(PropertyTokenizer prop) {
     MetaObject metaValue = metaObject.metaObjectForProperty(prop.getIndexedName());
     if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
       return null;
     }
     return metaValue.getValue(prop.getChildren());
   }
 
   protected void setChildValue(PropertyTokenizer prop, Object value) {
     MetaObject metaValue = metaObject.metaObjectForProperty(prop.getIndexedName());
     if (metaValue == SystemMetaObject.NULL_META_OBJECT) {
       if (value == null) {
         // don't instantiate child path if value is null
         return;
       }
       metaValue = instantiatePropertyValue(null, new PropertyTokenizer(prop.getName()), metaObject.getObjectFactory());
     }
     metaValue.setValue(prop.getChildren(), value);
   }
 }