com.rapiddweller.common.bean.BeanToPropertyArrayConverter Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of rd-lib-common Show documentation

'rapiddweller Common' is an open source Java library forked from Databene Commons by Volker Bergmann. It provides extensions to the Java core library by utility classes, abstract concepts and concrete implementations.

There is a newer version: 2.0.1-jdk-11

Show newest version

/*
 * Copyright (C) 2004-2015 Volker Bergmann ([email protected]).
 * All rights reserved.
 *
 * 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 com.rapiddweller.common.bean;

import com.rapiddweller.common.ConversionException;
import com.rapiddweller.common.converter.ThreadSafeConverter;

/**
 * Converter implementation that extracts all property values of a JavaBean to a Properties object.
 * Created: 07.06.2007 14:11:58
 *
 * @param  the bean type to access
 * @author Volker Bergmann
 */
public class BeanToPropertyArrayConverter extends ThreadSafeConverter {

  private final PropertyAccessor[] accessors;

  /**
   * Instantiates a new Bean to property array converter.
   *
   * @param propertyNames the property names
   */
  public BeanToPropertyArrayConverter(String... propertyNames) {
    this(null, propertyNames);
  }

  /**
   * Instantiates a new Bean to property array converter.
   *
   * @param beanClass     the bean class
   * @param propertyNames the property names
   */
  @SuppressWarnings("unchecked")
  public BeanToPropertyArrayConverter(Class beanClass, String... propertyNames) {
    super(beanClass, Object[].class);
    this.accessors = new PropertyAccessor[propertyNames.length];
    for (int i = 0; i < propertyNames.length; i++) {
      this.accessors[i] = PropertyAccessorFactory.getAccessor(beanClass, propertyNames[i]);
    }
  }

  @Override
  public Object[] convert(E bean) throws ConversionException {
    Object[] propertyValues = new Object[accessors.length];
    for (int i = 0; i < accessors.length; i++) {
      propertyValues[i] = accessors[i].getValue(bean);
    }
    return propertyValues;
  }

}