Package org.springframework.data.hadoop.config

Source Code of org.springframework.data.hadoop.config.AbstractPropertiesConfiguredBeanDefinitionParser

/*
* Copyright 2011-2013 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
*
*      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.springframework.data.hadoop.config;

import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.PropertiesFactoryBean;
import org.springframework.beans.factory.config.RuntimeBeanReference;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.ManagedList;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.util.StringUtils;
import org.springframework.util.xml.DomUtils;
import org.w3c.dom.Element;

/**
* Base class for parsing bean definitions of type propertiesConfigured.
*
* @author Costin Leau
*/
public abstract class AbstractPropertiesConfiguredBeanDefinitionParser extends AbstractImprovedSimpleBeanDefinitionParser {

  protected boolean isEligibleAttribute(String attributeName) {
    return !("properties-ref".equals(attributeName) || "properties-location".equals(attributeName))
        && super.isEligibleAttribute(attributeName);
  }


  @Override
  protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
    // parse attributes using conventions
    super.doParse(element, parserContext, builder);

    boolean hasProperties = false;

    BeanDefinitionBuilder b = BeanDefinitionBuilder.genericBeanDefinition(PropertiesFactoryBean.class);
    b.setScope(builder.getRawBeanDefinition().getScope());
    b.addPropertyValue("localOverride", true);
    ManagedList<Object> propsArray = new ManagedList<Object>(2);
    b.addPropertyValue("propertiesArray", propsArray);
   
    String attr = element.getAttribute("properties-ref");
    if (StringUtils.hasText(attr)) {
      hasProperties = true;
      propsArray.add(new RuntimeBeanReference(attr));
    }

    hasProperties |= NamespaceUtils.setCSVProperty(element, b, "properties-location", "locations");

    // parse nested properties
    attr = DomUtils.getTextValue(element);
    if (StringUtils.hasText(attr)) {
      hasProperties = true;
      propsArray.add(attr);
    }

    if (hasProperties) {
      b.setRole(BeanDefinition.ROLE_INFRASTRUCTURE);
      builder.addPropertyValue("properties", b.getBeanDefinition());
    }
  }
}
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