/**
    * Copyright 2010-2013 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.common.util.spring;
  
  import java.util.Properties;
  
  import org.springframework.beans.factory.FactoryBean;
  import org.springframework.core.env.ConfigurableEnvironment;
  import org.springframework.core.env.PropertiesPropertySource;
  import org.springframework.core.env.PropertySource;
  
  import com.google.common.base.Preconditions;
  
  public class EnvironmentPropertySourceFactoryBean implements FactoryBean<PropertySource<?>> {
  
  	ConfigurableEnvironment env;
  	boolean quietly = false;
  
  	@Override
  	public PropertySource<?> getObject() {
  		Preconditions.checkNotNull(env, "'env' cannot be null");
  		Properties source = getProperties();
  		return new PropertiesPropertySource("environmentProperties", source);
  	}
  
  	protected Properties getProperties() {
  		if (quietly) {
  			return PropertySourceUtils.getAllEnumerablePropertiesQuietly(env);
  		} else {
  			return PropertySourceUtils.getAllEnumerableProperties(env);
  		}
  	}
  
  	@Override
  	public Class<PropertySource<?>> getObjectType() {
  		return null;
  	}
  
  	@Override
  	public boolean isSingleton() {
  		return false;
  	}
  
  	public ConfigurableEnvironment getEnv() {
  		return env;
  	}
  
  	public void setEnv(ConfigurableEnvironment env) {
  		this.env = env;
  	}
  
  	public boolean isQuietly() {
  		return quietly;
  	}
  
  	public void setQuietly(boolean quietly) {
  		this.quietly = quietly;
  	}
  }