smart-bean-util/src/main/java/com/smartitengineering/util/bean/SpringBeanFactory.java

   1 /*
   2  * This is a utility project for wide range of applications
   3  *
   4  * Copyright (C) 8  Imran M Yousuf (imyousuf@smartitengineering.com)
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 3 of the License, or (at your option) any later version.
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  10-1  USA
  17  */
  18 package com.smartitengineering.util.bean;
  19
  20 import org.apache.commons.lang.StringUtils;
  21
  22 /**
  23  * A simply adapter for spring bean factory to be used for injection
  24  * @author imyousuf
  25  */
  26 public class SpringBeanFactory
  27     implements BeanFactory {
  28
  29     private org.springframework.beans.factory.BeanFactory beanFactory;
  30
  31     public SpringBeanFactory(
  32         org.springframework.beans.factory.BeanFactory beanFactory) {
  33         if (beanFactory == null) {
  34             throw new IllegalArgumentException(
  35                 "Spring bean factory can not be null!");
  36         }
  37         this.beanFactory = beanFactory;
  38     }
  39
  40     public boolean containsBean(String beanName)
  41         throws IllegalArgumentException {
  42         if (StringUtils.isBlank(beanName)) {
  43             throw new IllegalArgumentException("Bean Name can not be blank!");
  44         }
  45         return beanFactory.containsBean(beanName);
  46     }
  47
  48     public Object getBean(String beanName)
  49         throws IllegalArgumentException {
  50         if (StringUtils.isBlank(beanName)) {
  51             throw new IllegalArgumentException("Bean Name can not be blank!");
  52         }
  53         if (!containsBean(beanName)) {
  54             throw new IllegalArgumentException("No such bean in factory!");
  55         }
  56         return beanFactory.getBean(beanName);
  57     }
  58 }